finished Android application

challenge2/.gitignore

@@ -0,0 +1,13 @@
+*.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

challenge2/app/.gitignore

@@ -0,0 +1 @@
+/build

challenge2/app/build.gradle

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+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 28
+    defaultConfig {
+        applicationId "com.example.assignment"
+        minSdkVersion 15
+        targetSdkVersion 28
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'androidx.appcompat:appcompat:1.0.2'
+    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'androidx.test:runner:1.1.1'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
+}

challenge2/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

challenge2/app/src/androidTest/java/com/example/assignment/ExampleInstrumentedTest.java

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+package com.example.assignment;
+
+import android.content.Context;
+
+import androidx.test.InstrumentationRegistry;
+import androidx.test.runner.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.getTargetContext();
+
+        assertEquals("com.example.assignment", appContext.getPackageName());
+    }
+}

challenge2/app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.assignment">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity android:name=".SingleImageActivity">
+
+        </activity>
+    </application>
+
+</manifest>

challenge2/app/src/main/java/com/example/assignment/ImageAdapter.java

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+package com.example.assignment;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+
+public class ImageAdapter extends BaseAdapter {
+
+    Context context;
+    String[] title;
+    int[] file;
+    LayoutInflater inflater;
+
+    TextView txtTitle;
+    ImageView imgFile;
+
+    public ImageAdapter(Context context, String[] title, int[] file){
+        this.context = context;
+        this.file = file;
+        this.title = title;
+    }
+
+    @Override
+    public int getCount() {
+        return title.length;
+    }
+
+    @Override
+    public Object getItem(int position) {
+        return null;
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return 1;
+    }
+
+    @Override
+    public View getView(int position, View convertView, ViewGroup parent) {
+
+        inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+        View itemView = inflater.inflate(R.layout.image, parent, false);
+
+        imgFile = (ImageView) itemView.findViewById(R.id.file);
+        txtTitle = (TextView) itemView.findViewById(R.id.title);
+
+        imgFile.setImageResource(file[position]);
+        txtTitle.setText(title[position]);
+
+        return itemView;
+    }
+
+}

challenge2/app/src/main/java/com/example/assignment/MainActivity.java

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+package com.example.assignment;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.ListView;
+
+
+public class MainActivity extends AppCompatActivity {
+
+    private ListView list;
+    private ImageAdapter adapter;
+
+    // declare data
+    String[] titles = new String[]{
+            "Monet", "Monet", "Monet", "Van Gogh", "Van Gogh"
+    };
+
+    int[] files = new int[]{
+            R.drawable.img1, R.drawable.img2, R.drawable.img3, R.drawable.img4, R.drawable.img5,
+    };
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        // declare layout file
+        setContentView(R.layout.activity_main);
+
+        // use ListView from activity_main
+        list = (ListView) findViewById(R.id.list);
+
+        adapter = new ImageAdapter(this, titles, files);
+        list.setAdapter(adapter);
+
+        // when an image is pressed, it is displayed
+        list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
+
+            @Override
+            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+                Intent i = new Intent(MainActivity.this, SingleImageActivity.class);
+                //Putting required data in intent
+                i.putExtra("position", position);
+                i.putExtra("file", files);
+                i.putExtra("title", titles);
+                startActivity(i);
+            }
+        });
+    }
+}

challenge2/app/src/main/java/com/example/assignment/SingleImageActivity.java

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+package com.example.assignment;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+public class SingleImageActivity extends AppCompatActivity {
+    int position;
+    int[] file;
+    String[] title;
+    TextView txtTitle;
+    ImageView imgFile;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState){
+        super.onCreate(savedInstanceState);
+
+        // declare layout file
+        setContentView(R.layout.image);
+
+        Intent i = getIntent();
+
+        // retrieve data from MainActivity
+        position = i.getExtras().getInt("position");
+        file = i.getIntArrayExtra("file");
+        title = i.getStringArrayExtra("title");
+
+        // define location to display data
+        txtTitle = (TextView) findViewById(R.id.title);
+        imgFile = (ImageView) findViewById(R.id.file);
+
+        txtTitle.setText(title[position]);
+        imgFile.setImageResource(file[position]);
+    }
+
+}

challenge2/app/src/main/res/drawable-v24/ic_launcher_foreground.xml

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+<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:fillType="evenOdd"
+        android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="78.5885"
+                android:endY="90.9159"
+                android:startX="48.7653"
+                android:startY="61.0927"
+                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="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>