diff --git a/Assignments/CriminalIntentChapter7/.idea/gradle.xml b/Assignments/CriminalIntentChapter7/.idea/gradle.xml
index 32522c1..0897082 100644
--- a/Assignments/CriminalIntentChapter7/.idea/gradle.xml
+++ b/Assignments/CriminalIntentChapter7/.idea/gradle.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>
diff --git a/Assignments/CriminalIntentChapter7/.idea/misc.xml b/Assignments/CriminalIntentChapter7/.idea/misc.xml
index 0ad17cb..8978d23 100644
--- a/Assignments/CriminalIntentChapter7/.idea/misc.xml
+++ b/Assignments/CriminalIntentChapter7/.idea/misc.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
   <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="jbr-17" project-jdk-type="JavaSDK">
diff --git a/Assignments/CriminalIntentChapter8/.gitignore b/Assignments/CriminalIntentChapter8/.gitignore
new file mode 100644
index 0000000..aa724b7
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/.gitignore
@@ -0,0 +1,15 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties
diff --git a/Assignments/CriminalIntentChapter8/.idea/.gitignore b/Assignments/CriminalIntentChapter8/.idea/.gitignore
new file mode 100644
index 0000000..26d3352
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/.idea/.gitignore
@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml
diff --git a/Assignments/CriminalIntentChapter8/.idea/appInsightsSettings.xml b/Assignments/CriminalIntentChapter8/.idea/appInsightsSettings.xml
new file mode 100644
index 0000000..371f2e2
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/.idea/appInsightsSettings.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="AppInsightsSettings">
+    <option name="tabSettings">
+      <map>
+        <entry key="Firebase Crashlytics">
+          <value>
+            <InsightsFilterSettings>
+              <option name="connection">
+                <ConnectionSetting>
+                  <option name="appId" value="PLACEHOLDER" />
+                  <option name="mobileSdkAppId" value="" />
+                  <option name="projectId" value="" />
+                  <option name="projectNumber" value="" />
+                </ConnectionSetting>
+              </option>
+              <option name="signal" value="SIGNAL_UNSPECIFIED" />
+              <option name="timeIntervalDays" value="THIRTY_DAYS" />
+              <option name="visibilityType" value="ALL" />
+            </InsightsFilterSettings>
+          </value>
+        </entry>
+      </map>
+    </option>
+  </component>
+</project>
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/.idea/codeStyles b/Assignments/CriminalIntentChapter8/.idea/codeStyles
new file mode 100644
index 0000000..e2e415d
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/.idea/codeStyles
@@ -0,0 +1,119 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectCodeStyleConfiguration">
+    <code_scheme name="Project" version="173">
+      <codeStyleSettings language="XML">
+        <indentOptions>
+          <option name="CONTINUATION_INDENT_SIZE" value="4" />
+        </indentOptions>
+        <arrangement>
+          <rules>
+            <section>
+              <rule>
+                <match>
+                  <AND>
+                    <NAME>xmlns:android</NAME>
+                    <XML_ATTRIBUTE />
+                    <XML_NAMESPACE>^$</XML_NAMESPACE>
+                  </AND>
+                </match>
+              </rule>
+            </section>
+            <section>
+              <rule>
+                <match>
+                  <AND>
+                    <NAME>xmlns:.*</NAME>
+                    <XML_ATTRIBUTE />
+                    <XML_NAMESPACE>^$</XML_NAMESPACE>
+                  </AND>
+                </match>
+                <order>BY_NAME</order>
+              </rule>
+            </section>
+            <section>
+              <rule>
+                <match>
+                  <AND>
+                    <NAME>.*:id</NAME>
+                    <XML_ATTRIBUTE />
+                    <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                  </AND>
+                </match>
+              </rule>
+            </section>
+            <section>
+              <rule>
+                <match>
+                  <AND>
+                    <NAME>.*:name</NAME>
+                    <XML_ATTRIBUTE />
+                    <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                  </AND>
+                </match>
+              </rule>
+            </section>
+            <section>
+              <rule>
+                <match>
+                  <AND>
+                    <NAME>name</NAME>
+                    <XML_ATTRIBUTE />
+                    <XML_NAMESPACE>^$</XML_NAMESPACE>
+                  </AND>
+                </match>
+              </rule>
+            </section>
+            <section>
+              <rule>
+                <match>
+                  <AND>
+                    <NAME>style</NAME>
+                    <XML_ATTRIBUTE />
+                    <XML_NAMESPACE>^$</XML_NAMESPACE>
+                  </AND>
+                </match>
+              </rule>
+            </section>
+            <section>
+              <rule>
+                <match>
+                  <AND>
+                    <NAME>.*</NAME>
+                    <XML_ATTRIBUTE />
+                    <XML_NAMESPACE>^$</XML_NAMESPACE>
+                  </AND>
+                </match>
+                <order>BY_NAME</order>
+              </rule>
+            </section>
+            <section>
+              <rule>
+                <match>
+                  <AND>
+                    <NAME>.*</NAME>
+                    <XML_ATTRIBUTE />
+                    <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                  </AND>
+                </match>
+                <order>ANDROID_ATTRIBUTE_ORDER</order>
+              </rule>
+            </section>
+            <section>
+              <rule>
+                <match>
+                  <AND>
+                    <NAME>.*</NAME>
+                    <XML_ATTRIBUTE />
+                    <XML_NAMESPACE>.*</XML_NAMESPACE>
+                  </AND>
+                </match>
+                <order>BY_NAME</order>
+              </rule>
+            </section>
+          </rules>
+        </arrangement>
+      </codeStyleSettings>
+    </code_scheme>
+  </component>
+</project>
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/.idea/compiler.xml b/Assignments/CriminalIntentChapter8/.idea/compiler.xml
new file mode 100644
index 0000000..b589d56
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/.idea/compiler.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="17" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/.idea/deploymentTargetDropDown.xml b/Assignments/CriminalIntentChapter8/.idea/deploymentTargetDropDown.xml
new file mode 100644
index 0000000..0c0c338
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/.idea/deploymentTargetDropDown.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="deploymentTargetDropDown">
+    <value>
+      <entry key="app">
+        <State />
+      </entry>
+    </value>
+  </component>
+</project>
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/.idea/discord.xml b/Assignments/CriminalIntentChapter8/.idea/discord.xml
new file mode 100644
index 0000000..d8e9561
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/.idea/discord.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="DiscordProjectSettings">
+    <option name="show" value="PROJECT_FILES" />
+    <option name="description" value="" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/.idea/gradle.xml b/Assignments/CriminalIntentChapter8/.idea/gradle.xml
new file mode 100644
index 0000000..32522c1
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/.idea/gradle.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="gradleJvm" value="#GRADLE_LOCAL_JAVA_HOME" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+            <option value="$PROJECT_DIR$/app" />
+          </set>
+        </option>
+        <option name="resolveExternalAnnotations" value="false" />
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/.idea/migrations.xml b/Assignments/CriminalIntentChapter8/.idea/migrations.xml
new file mode 100644
index 0000000..f8051a6
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/.idea/migrations.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectMigrations">
+    <option name="MigrateToGradleLocalJavaHome">
+      <set>
+        <option value="$PROJECT_DIR$" />
+      </set>
+    </option>
+  </component>
+</project>
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/.idea/misc.xml b/Assignments/CriminalIntentChapter8/.idea/misc.xml
new file mode 100644
index 0000000..b0137f1
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/.idea/misc.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="jbr-17" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/.idea/vcs.xml b/Assignments/CriminalIntentChapter8/.idea/vcs.xml
new file mode 100644
index 0000000..b2bdec2
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/../.." vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/app/.gitignore b/Assignments/CriminalIntentChapter8/app/.gitignore
new file mode 100644
index 0000000..42afabf
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/.gitignore
@@ -0,0 +1 @@
+/build
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/app/build.gradle.kts b/Assignments/CriminalIntentChapter8/app/build.gradle.kts
new file mode 100644
index 0000000..fe72a1a
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/build.gradle.kts
@@ -0,0 +1,42 @@
+plugins {
+    id("com.android.application")
+}
+
+android {
+    namespace = "com.example.criminalintentchapter8"
+    compileSdk = 34
+
+    defaultConfig {
+        applicationId = "com.example.criminalintentchapter8"
+        minSdk = 21
+        targetSdk = 34
+        versionCode = 1
+        versionName = "1.0"
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = false
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+        }
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
+    }
+}
+
+dependencies {
+
+    implementation("androidx.appcompat:appcompat:1.6.1")
+    implementation("com.google.android.material:material:1.11.0")
+    implementation("androidx.constraintlayout:constraintlayout:2.1.4")
+    testImplementation("junit:junit:4.13.2")
+    androidTestImplementation("androidx.test.ext:junit:1.1.5")
+    androidTestImplementation("androidx.test.espresso:espresso-core:3.5.1")
+}
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/app/proguard-rules.pro b/Assignments/CriminalIntentChapter8/app/proguard-rules.pro
new file mode 100644
index 0000000..481bb43
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/app/src/androidTest/java/com/example/criminalintentchapter8/ExampleInstrumentedTest.java b/Assignments/CriminalIntentChapter8/app/src/androidTest/java/com/example/criminalintentchapter8/ExampleInstrumentedTest.java
new file mode 100644
index 0000000..6b9bdb7
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/androidTest/java/com/example/criminalintentchapter8/ExampleInstrumentedTest.java
@@ -0,0 +1,26 @@
+package com.example.criminalintentchapter8;
+
+import android.content.Context;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+        assertEquals("com.example.criminalintentchapter7", appContext.getPackageName());
+    }
+}
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/AndroidManifest.xml b/Assignments/CriminalIntentChapter8/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..a4a483f
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/main/AndroidManifest.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <application
+        android:allowBackup="true"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.CriminalIntentChapter7"
+        tools:targetApi="31">
+        <activity
+            android:name=".CrimeListActivity"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/java/com/example/criminalintentchapter8/Crime.java b/Assignments/CriminalIntentChapter8/app/src/main/java/com/example/criminalintentchapter8/Crime.java
new file mode 100644
index 0000000..4344eb0
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/main/java/com/example/criminalintentchapter8/Crime.java
@@ -0,0 +1,44 @@
+package com.example.criminalintentchapter8;
+
+import java.util.Date;
+import java.util.UUID;
+
+public class Crime
+{
+    private UUID mId;
+    private String mTitle;
+    private boolean mSolved;
+    private Date mDate;
+    public Crime() {
+        mId = UUID.randomUUID();
+        mDate = new Date();
+    }
+
+    public UUID getId() {
+        return mId;
+    }
+
+    public String getTitle() {
+        return mTitle;
+    }
+
+    public void setTitle(String title) {
+        mTitle = title;
+    }
+
+    public boolean isSolved() {
+        return mSolved;
+    }
+
+    public void setSolved(boolean solved) {
+        mSolved = solved;
+    }
+
+    public Date getDate() {
+        return mDate;
+    }
+
+    public void setDate(Date date) {
+        mDate = date;
+    }
+}
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/java/com/example/criminalintentchapter8/CrimeActivity.java b/Assignments/CriminalIntentChapter8/app/src/main/java/com/example/criminalintentchapter8/CrimeActivity.java
new file mode 100644
index 0000000..a6626d1
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/main/java/com/example/criminalintentchapter8/CrimeActivity.java
@@ -0,0 +1,14 @@
+package com.example.criminalintentchapter8;
+
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentManager;
+
+import android.os.Bundle;
+
+public class CrimeActivity extends SingleFragmentActivity {
+    @Override
+    protected Fragment createFragment() {
+        return new CrimeFragment();
+    }
+}
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/java/com/example/criminalintentchapter8/CrimeFragment.java b/Assignments/CriminalIntentChapter8/app/src/main/java/com/example/criminalintentchapter8/CrimeFragment.java
new file mode 100644
index 0000000..c631960
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/main/java/com/example/criminalintentchapter8/CrimeFragment.java
@@ -0,0 +1,80 @@
+package com.example.criminalintentchapter8;
+
+import android.os.Bundle;
+
+import androidx.fragment.app.Fragment;
+
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.CheckBox;
+import android.widget.CompoundButton;
+import android.widget.EditText;
+
+import java.text.SimpleDateFormat;
+import java.util.Locale;
+
+public class CrimeFragment extends Fragment {
+    private Crime mCrime;
+    private EditText mTitleField;
+    private CheckBox mSolvedCheckBox;
+    private Button mDateButton;
+
+    public CrimeFragment() {
+        // Required empty public constructor
+    }
+
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        mCrime = new Crime();
+
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        View v =
+                inflater.inflate(R.layout.fragment_crime, container, false);
+
+        mTitleField = (EditText)
+                v.findViewById(R.id.crime_title);
+        mTitleField.addTextChangedListener(new TextWatcher() {
+            @Override
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+                ///left blank on purpose
+            }
+
+            @Override
+            public void onTextChanged(CharSequence s, int start, int before, int count) {
+                mCrime.setTitle(s.toString());
+            }
+
+            @Override
+            public void afterTextChanged(Editable s) {
+                ///left blank on purpose
+            }
+        });
+
+        mSolvedCheckBox = (CheckBox) v.findViewById(R.id.crime_solved);
+
+        mSolvedCheckBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener()
+        {
+            @Override
+            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked)
+            {
+                mCrime.setSolved(isChecked);
+            }
+    });
+        mDateButton = (Button) v.findViewById(R.id.crime_date);
+        SimpleDateFormat dateFormat = new SimpleDateFormat("EEE, MMM d, yyyy", Locale.getDefault());
+        String dateString = dateFormat.format(mCrime.getDate());
+        mDateButton.setText(dateString);
+        mDateButton.setEnabled(false);
+        return v;
+    }
+}
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/java/com/example/criminalintentchapter8/CrimeLab.java b/Assignments/CriminalIntentChapter8/app/src/main/java/com/example/criminalintentchapter8/CrimeLab.java
new file mode 100644
index 0000000..40ad4ce
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/main/java/com/example/criminalintentchapter8/CrimeLab.java
@@ -0,0 +1,49 @@
+package com.example.criminalintentchapter8;
+
+import android.content.Context;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+
+public class CrimeLab {
+    private static CrimeLab sCrimeLab;
+    private List<Crime> mCrimes;
+
+    public static CrimeLab get(Context context)
+    {
+        if(sCrimeLab == null)
+        {
+            sCrimeLab = new CrimeLab(context);
+        }
+        return  sCrimeLab;
+    }
+
+    private  CrimeLab(Context context)
+    {
+        mCrimes = new ArrayList<>();
+        for(int i = 0; i < 100; i++)
+        {
+            Crime crime = new Crime();
+            crime.setTitle("Crime #" + i);
+            crime.setSolved(i % 2 == 0); //every other one
+            mCrimes.add(crime);
+        }
+    }
+
+    public List<Crime> getCrimes()
+    {
+        return mCrimes;
+    }
+
+    public Crime getCrime(UUID id) {
+        for(Crime crime : mCrimes)
+        {
+            if (crime.getId().equals(id))
+            {
+                return crime;
+            }
+        }
+        return null;
+    }
+}
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/java/com/example/criminalintentchapter8/CrimeListActivity.java b/Assignments/CriminalIntentChapter8/app/src/main/java/com/example/criminalintentchapter8/CrimeListActivity.java
new file mode 100644
index 0000000..c3f722a
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/main/java/com/example/criminalintentchapter8/CrimeListActivity.java
@@ -0,0 +1,14 @@
+package com.example.criminalintentchapter8;
+
+import android.app.Activity;
+
+import androidx.fragment.app.Fragment;
+
+public class CrimeListActivity extends SingleFragmentActivity {
+
+
+    @Override
+    protected Fragment createFragment() {
+        return new CrimeListFragment();
+    }
+}
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/java/com/example/criminalintentchapter8/CrimeListFragment.java b/Assignments/CriminalIntentChapter8/app/src/main/java/com/example/criminalintentchapter8/CrimeListFragment.java
new file mode 100644
index 0000000..1ae4db9
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/main/java/com/example/criminalintentchapter8/CrimeListFragment.java
@@ -0,0 +1,85 @@
+package com.example.criminalintentchapter8;
+
+import android.graphics.Rect;
+import android.os.Bundle;
+import android.text.Layout;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import java.util.List;
+
+public class CrimeListFragment extends Fragment {
+    private RecyclerView mCrimeRecyclerView;
+    private CrimeAdapter mAdapter;
+
+    @Nullable
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+        super.onCreateView(inflater, container, savedInstanceState);
+        View view = inflater.inflate(R.layout.fragment_crime_list, container, false);
+        mCrimeRecyclerView = (RecyclerView) view.findViewById(R.id.crime_recycler_view);
+        mCrimeRecyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
+        updateUI();
+        return view;
+    }
+
+    private class CrimeHolder extends RecyclerView.ViewHolder {
+        private TextView mTitleTextView;
+        private TextView mDateTextView;
+        private Crime mCrime;
+        public void bind(Crime crime) {
+            mCrime = crime;
+            mTitleTextView.setText(mCrime.getTitle());
+            mDateTextView.setText(mCrime.getDate().toString());
+        }
+        public CrimeHolder(LayoutInflater inflater,
+                           ViewGroup parent) {
+            super(inflater.inflate(R.layout.list_item_crime, parent, false));
+
+            mTitleTextView = (TextView) itemView.findViewById(R.id.crime_title);
+            mDateTextView = (TextView) itemView.findViewById(R.id.crime_date);
+
+        }
+    }
+    private class CrimeAdapter extends RecyclerView.Adapter<CrimeHolder> {
+
+        private List<Crime> mCrimes;
+
+        public CrimeAdapter(List<Crime> crimes) {
+            mCrimes = crimes;
+        }
+
+        @NonNull
+        @Override
+        public CrimeHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+            LayoutInflater layoutInflater = LayoutInflater.from(getActivity());
+            return new CrimeHolder(layoutInflater, parent);
+        }
+
+        @Override
+        public void onBindViewHolder(@NonNull CrimeHolder holder, int position) {
+            Crime crime = mCrimes.get(position);
+            holder.bind(crime);
+        }
+
+        @Override
+        public int getItemCount() {
+            return mCrimes.size();
+        }
+    }
+
+    private void updateUI() {
+        CrimeLab crimeLab = CrimeLab.get(getActivity());
+        List<Crime> crimes = crimeLab.getCrimes();
+        mAdapter = new CrimeAdapter(crimes);
+        mCrimeRecyclerView.setAdapter(mAdapter);
+    }
+}
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/java/com/example/criminalintentchapter8/SingleFragmentActivity.java b/Assignments/CriminalIntentChapter8/app/src/main/java/com/example/criminalintentchapter8/SingleFragmentActivity.java
new file mode 100644
index 0000000..aba2ce8
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/main/java/com/example/criminalintentchapter8/SingleFragmentActivity.java
@@ -0,0 +1,26 @@
+package com.example.criminalintentchapter8;
+
+import android.os.Bundle;
+
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentManager;
+
+public abstract class SingleFragmentActivity extends AppCompatActivity {
+
+    protected abstract Fragment createFragment();
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_fragment);
+
+        FragmentManager fm = getSupportFragmentManager();
+        Fragment fragment = fm.findFragmentById(R.id.fragment_container);
+
+        if (fragment == null) {
+            fragment = createFragment();
+            fm.beginTransaction().add(R.id.fragment_container, fragment).commit();
+        }
+    }
+}
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/res/drawable-v24/ic_launcher_foreground.xml b/Assignments/CriminalIntentChapter8/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
new file mode 100644
index 0000000..2b068d1
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
@@ -0,0 +1,30 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/res/drawable/ic_launcher_background.xml b/Assignments/CriminalIntentChapter8/app/src/main/res/drawable/ic_launcher_background.xml
new file mode 100644
index 0000000..07d5da9
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/main/res/drawable/ic_launcher_background.xml
@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/res/layout-land/fragment_crime_landscape.xml b/Assignments/CriminalIntentChapter8/app/src/main/res/layout-land/fragment_crime_landscape.xml
new file mode 100644
index 0000000..573c097
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/main/res/layout-land/fragment_crime_landscape.xml
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:layout_margin="16dp"
+    android:orientation="horizontal">
+    <TextView
+        style="?android:listSeparatorTextViewStyle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/crime_title_label"/>
+    <EditText
+        android:id="@+id/crime_title"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:hint="@string/crime_title_hint"/>
+    <TextView
+        style="?android:listSeparatorTextViewStyle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/crime_details_label"/>
+
+    <Button
+        android:id="@+id/crime_date"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="16dp"
+        android:layout_marginRight="16dp"
+        android:paddingLeft="16dp" />
+    <CheckBox
+        android:id="@+id/crime_solved"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/crime_solved_label"
+        android:paddingLeft="16dp"
+        android:layout_marginTop="8dp"
+        android:layout_marginRight="8dp"/>
+</LinearLayout>
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/res/layout/activity_crime.xml b/Assignments/CriminalIntentChapter8/app/src/main/res/layout/activity_crime.xml
new file mode 100644
index 0000000..5cf169d
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/main/res/layout/activity_crime.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/fragment_container"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    />
+
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/res/layout/activity_fragment.xml b/Assignments/CriminalIntentChapter8/app/src/main/res/layout/activity_fragment.xml
new file mode 100644
index 0000000..0d21f1d
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/main/res/layout/activity_fragment.xml
@@ -0,0 +1,4 @@
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/fragment_container"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"/>
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/res/layout/fragment_crime.xml b/Assignments/CriminalIntentChapter8/app/src/main/res/layout/fragment_crime.xml
new file mode 100644
index 0000000..16517cf
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/main/res/layout/fragment_crime.xml
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:layout_margin="16dp"
+    android:orientation="vertical">
+
+    <TextView
+style="?android:listSeparatorTextViewStyle"
+android:layout_width="match_parent"
+android:layout_height="wrap_content"
+android:text="@string/crime_title_label"/>
+<EditText
+android:id="@+id/crime_title"
+android:layout_width="match_parent"
+android:layout_height="wrap_content"
+android:hint="@string/crime_title_hint"/>
+<TextView
+style="?android:listSeparatorTextViewStyle"
+android:layout_width="match_parent"
+android:layout_height="wrap_content"
+android:text="@string/crime_details_label"/>
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="horizontal"
+        android:layout_gravity="center">
+
+        <Button
+            android:id="@+id/crime_date"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginLeft="16dp"
+            android:layout_marginRight="16dp"
+            android:paddingLeft="16dp"
+            />
+
+        <CheckBox
+            android:id="@+id/crime_solved"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/crime_solved_label" />
+
+    </LinearLayout>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/res/layout/fragment_crime_list.xml b/Assignments/CriminalIntentChapter8/app/src/main/res/layout/fragment_crime_list.xml
new file mode 100644
index 0000000..276ffff
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/main/res/layout/fragment_crime_list.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.recyclerview.widget.RecyclerView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/crime_recycler_view"
+    android:layout_height="wrap_content"
+    android:layout_width="wrap_content" />
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/res/layout/list_item_crime.xml b/Assignments/CriminalIntentChapter8/app/src/main/res/layout/list_item_crime.xml
new file mode 100644
index 0000000..3e07eb4
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/main/res/layout/list_item_crime.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:padding="8dp">
+
+    <TextView
+        android:id="@+id/crime_title"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="Crime title" />
+
+    <TextView
+        android:id="@id/crime_date"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="Crime date"/>
+</LinearLayout>
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
new file mode 100644
index 0000000..6f3b755
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
new file mode 100644
index 0000000..6f3b755
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-hdpi/ic_launcher.webp b/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-hdpi/ic_launcher.webp
new file mode 100644
index 0000000..c209e78
Binary files /dev/null and b/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-hdpi/ic_launcher.webp differ
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp b/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp
new file mode 100644
index 0000000..b2dfe3d
Binary files /dev/null and b/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp differ
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-mdpi/ic_launcher.webp b/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-mdpi/ic_launcher.webp
new file mode 100644
index 0000000..4f0f1d6
Binary files /dev/null and b/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-mdpi/ic_launcher.webp differ
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp b/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp
new file mode 100644
index 0000000..62b611d
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diff --git a/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-xhdpi/ic_launcher.webp b/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-xhdpi/ic_launcher.webp
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new file mode 100644
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new file mode 100644
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diff --git a/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp b/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp
new file mode 100644
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diff --git a/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp b/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp
new file mode 100644
index 0000000..aa7d642
Binary files /dev/null and b/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp differ
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp b/Assignments/CriminalIntentChapter8/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp
new file mode 100644
index 0000000..9126ae3
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diff --git a/Assignments/CriminalIntentChapter8/app/src/main/res/values-night/themes.xml b/Assignments/CriminalIntentChapter8/app/src/main/res/values-night/themes.xml
new file mode 100644
index 0000000..94fbbd4
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/main/res/values-night/themes.xml
@@ -0,0 +1,7 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Base.Theme.CriminalIntentChapter7" parent="Theme.Material3.DayNight.NoActionBar">
+        <!-- Customize your dark theme here. -->
+        <!-- <item name="colorPrimary">@color/my_dark_primary</item> -->
+    </style>
+</resources>
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/res/values/colors.xml b/Assignments/CriminalIntentChapter8/app/src/main/res/values/colors.xml
new file mode 100644
index 0000000..c8524cd
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/main/res/values/colors.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="black">#FF000000</color>
+    <color name="white">#FFFFFFFF</color>
+</resources>
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/res/values/strings.xml b/Assignments/CriminalIntentChapter8/app/src/main/res/values/strings.xml
new file mode 100644
index 0000000..2487cc9
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/main/res/values/strings.xml
@@ -0,0 +1,10 @@
+<resources>
+    <string name="app_name">CriminalIntentChapter7</string>
+    <string name="crime_title_hint">Enter a title for
+the crime.</string>
+    <string name="crime_title_label">Title</string>
+    <string
+        name="crime_details_label">Details</string>
+    <string name="crime_solved_label">Solved</string>
+
+</resources>
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/res/values/themes.xml b/Assignments/CriminalIntentChapter8/app/src/main/res/values/themes.xml
new file mode 100644
index 0000000..8d0d0d7
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/main/res/values/themes.xml
@@ -0,0 +1,9 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Base.Theme.CriminalIntentChapter7" parent="Theme.Material3.DayNight.NoActionBar">
+        <!-- Customize your light theme here. -->
+        <!-- <item name="colorPrimary">@color/my_light_primary</item> -->
+    </style>
+
+    <style name="Theme.CriminalIntentChapter7" parent="Base.Theme.CriminalIntentChapter7" />
+</resources>
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/res/xml/backup_rules.xml b/Assignments/CriminalIntentChapter8/app/src/main/res/xml/backup_rules.xml
new file mode 100644
index 0000000..fa0f996
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/main/res/xml/backup_rules.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample backup rules file; uncomment and customize as necessary.
+   See https://developer.android.com/guide/topics/data/autobackup
+   for details.
+   Note: This file is ignored for devices older that API 31
+   See https://developer.android.com/about/versions/12/backup-restore
+-->
+<full-backup-content>
+    <!--
+   <include domain="sharedpref" path="."/>
+   <exclude domain="sharedpref" path="device.xml"/>
+-->
+</full-backup-content>
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/app/src/main/res/xml/data_extraction_rules.xml b/Assignments/CriminalIntentChapter8/app/src/main/res/xml/data_extraction_rules.xml
new file mode 100644
index 0000000..9ee9997
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/main/res/xml/data_extraction_rules.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample data extraction rules file; uncomment and customize as necessary.
+   See https://developer.android.com/about/versions/12/backup-restore#xml-changes
+   for details.
+-->
+<data-extraction-rules>
+    <cloud-backup>
+        <!-- TODO: Use <include> and <exclude> to control what is backed up.
+        <include .../>
+        <exclude .../>
+        -->
+    </cloud-backup>
+    <!--
+    <device-transfer>
+        <include .../>
+        <exclude .../>
+    </device-transfer>
+    -->
+</data-extraction-rules>
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/app/src/test/java/com/example/criminalintentchapter8/ExampleUnitTest.java b/Assignments/CriminalIntentChapter8/app/src/test/java/com/example/criminalintentchapter8/ExampleUnitTest.java
new file mode 100644
index 0000000..405b772
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/app/src/test/java/com/example/criminalintentchapter8/ExampleUnitTest.java
@@ -0,0 +1,17 @@
+package com.example.criminalintentchapter8;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() {
+        assertEquals(4, 2 + 2);
+    }
+}
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/build.gradle.kts b/Assignments/CriminalIntentChapter8/build.gradle.kts
new file mode 100644
index 0000000..196e647
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/build.gradle.kts
@@ -0,0 +1,4 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+plugins {
+    id("com.android.application") version "8.2.2" apply false
+}
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/gradle.properties b/Assignments/CriminalIntentChapter8/gradle.properties
new file mode 100644
index 0000000..3e927b1
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/gradle.properties
@@ -0,0 +1,21 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app's APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Enables namespacing of each library's R class so that its R class includes only the
+# resources declared in the library itself and none from the library's dependencies,
+# thereby reducing the size of the R class for that library
+android.nonTransitiveRClass=true
\ No newline at end of file
diff --git a/Assignments/CriminalIntentChapter8/gradle/wrapper/gradle-wrapper.jar b/Assignments/CriminalIntentChapter8/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..e708b1c
Binary files /dev/null and b/Assignments/CriminalIntentChapter8/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/Assignments/CriminalIntentChapter8/gradle/wrapper/gradle-wrapper.properties b/Assignments/CriminalIntentChapter8/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..939693e
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Wed Feb 14 09:54:57 CST 2024
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.2-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/Assignments/CriminalIntentChapter8/gradlew b/Assignments/CriminalIntentChapter8/gradlew
new file mode 100644
index 0000000..4f906e0
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/gradlew
@@ -0,0 +1,185 @@
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=`expr $i + 1`
+    done
+    case $i in
+        0) set -- ;;
+        1) set -- "$args0" ;;
+        2) set -- "$args0" "$args1" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=`save "$@"`
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+exec "$JAVACMD" "$@"
diff --git a/Assignments/CriminalIntentChapter8/gradlew.bat b/Assignments/CriminalIntentChapter8/gradlew.bat
new file mode 100644
index 0000000..ac1b06f
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/gradlew.bat
@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/Assignments/CriminalIntentChapter8/settings.gradle.kts b/Assignments/CriminalIntentChapter8/settings.gradle.kts
new file mode 100644
index 0000000..87b41cc
--- /dev/null
+++ b/Assignments/CriminalIntentChapter8/settings.gradle.kts
@@ -0,0 +1,18 @@
+pluginManagement {
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.name = "CriminalIntentChapter8"
+include(":app")
+ 
\ No newline at end of file