Allow challenging your friends on Android (closes #10)

android/src/io/github/lonamiwebs/klooni/AndroidLauncher.java

@@ -7,10 +7,11 @@ import com.badlogic.gdx.backends.android.AndroidApplicationConfiguration;
 import io.github.lonamiwebs.klooni.Klooni;
 
 public class AndroidLauncher extends AndroidApplication {
-	@Override
-	protected void onCreate (Bundle savedInstanceState) {
-		super.onCreate(savedInstanceState);
-		AndroidApplicationConfiguration config = new AndroidApplicationConfiguration();
-		initialize(new Klooni(), config);
-	}
+    @Override
+    protected void onCreate (Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        final AndroidApplicationConfiguration config = new AndroidApplicationConfiguration();
+        final AndroidShareChallenge shareChallenge = new AndroidShareChallenge(this);
+        initialize(new Klooni(shareChallenge), config);
+    }
 }

android/src/io/github/lonamiwebs/klooni/AndroidShareChallenge.java

@@ -0,0 +1,51 @@
+package io.github.lonamiwebs.klooni;
+
+
+import android.content.Context;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Handler;
+import android.widget.Toast;
+
+import java.io.File;
+
+class AndroidShareChallenge extends ShareChallenge {
+
+    private final Handler handler;
+    private final Context context;
+
+    AndroidShareChallenge(final Context context) {
+        handler = new Handler();
+        this.context = context;
+    }
+
+    @Override
+    File getShareImageFilePath() {
+        return new File(context.getExternalCacheDir(), "share_challenge.png");
+    }
+
+    @Override
+    public void shareScreenshot(final boolean ok) {
+        handler.post(new Runnable() {
+            @Override
+            public void run() {
+                if (!ok) {
+                    Toast.makeText(context, "Failed to create the file", Toast.LENGTH_SHORT).show();
+                    return;
+                }
+
+                final String text = "Check out my score at 1010 Klooni!";
+                final Uri pictureUri = Uri.fromFile(getShareImageFilePath());
+                final Intent shareIntent = new Intent();
+                shareIntent.setAction(Intent.ACTION_SEND);
+                shareIntent.setType("image/png");
+
+                shareIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "");
+                shareIntent.putExtra(Intent.EXTRA_TEXT, text);
+                shareIntent.putExtra(Intent.EXTRA_STREAM, pictureUri);
+
+                context.startActivity(Intent.createChooser(shareIntent, "Challenge your friends..."));
+            }
+        });
+    }
+}

core/src/io/github/lonamiwebs/klooni/Klooni.java

@@ -21,6 +21,8 @@ public class Klooni extends Game {
     public static Theme theme;
     public Skin skin;
 
+    public ShareChallenge shareChallenge;
+
     public static boolean onDesktop;
 
     private final static float SCORE_TO_MONEY = 1f / 100f;
@@ -32,6 +34,12 @@ public class Klooni extends Game {
 
     //region Creation
 
+    // TODO Possibly implement a 'ShareChallenge'
+    //      for other platforms instead passing null
+    public Klooni(final ShareChallenge shareChallenge) {
+        this.shareChallenge = shareChallenge;
+    }
+
     @Override
     public void create() {
         onDesktop = Gdx.app.getType().equals(Application.ApplicationType.Desktop);

core/src/io/github/lonamiwebs/klooni/actors/SoftButton.java

@@ -19,17 +19,21 @@ public class SoftButton extends ImageButton {
 
     //region Constructor
 
-    public SoftButton(int styleIndex, String imageName) {
+    public SoftButton(final int styleIndex, final String imageName) {
         super(Klooni.theme.getStyle(styleIndex));
 
         this.styleIndex = styleIndex;
-        image = Theme.skin.getDrawable(imageName);
+        updateImage(imageName);
     }
 
     //endregion
 
     //region Public methods
 
+    public void updateImage(final String imageName) {
+        image = Theme.skin.getDrawable(imageName);
+    }
+
     @Override
     public void draw(Batch batch, float parentAlpha) {
         // Always update the style to make sure we're using the right image.

core/src/io/github/lonamiwebs/klooni/screens/PauseMenuStage.java

@@ -1,8 +1,10 @@
 package io.github.lonamiwebs.klooni.screens;
 
+import com.badlogic.gdx.Application;
 import com.badlogic.gdx.Gdx;
 import com.badlogic.gdx.Input;
 import com.badlogic.gdx.InputProcessor;
+import com.badlogic.gdx.files.FileHandle;
 import com.badlogic.gdx.graphics.GL20;
 import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
 import com.badlogic.gdx.math.Interpolation;
@@ -13,7 +15,10 @@ import com.badlogic.gdx.scenes.scene2d.actions.RunnableAction;
 import com.badlogic.gdx.scenes.scene2d.ui.Table;
 import com.badlogic.gdx.scenes.scene2d.utils.ChangeListener;
 
+import java.io.File;
+
 import io.github.lonamiwebs.klooni.Klooni;
+import io.github.lonamiwebs.klooni.ShareChallenge;
 import io.github.lonamiwebs.klooni.actors.Band;
 import io.github.lonamiwebs.klooni.actors.SoftButton;
 import io.github.lonamiwebs.klooni.game.BaseScorer;
@@ -31,8 +36,10 @@ class PauseMenuStage extends Stage {
 
     private final ShapeRenderer shapeRenderer;
 
+    private final Klooni game;
     private final Band band;
     private final BaseScorer scorer;
+    private final SoftButton playButton;
 
     //endregion
 
@@ -40,6 +47,7 @@ class PauseMenuStage extends Stage {
 
     // We need the score to save the maximum score if a new record was beaten
     PauseMenuStage(final GameLayout layout, final Klooni game, final BaseScorer scorer, final int gameMode) {
+        this.game = game;
         this.scorer = scorer;
 
         shapeRenderer = new ShapeRenderer(20); // 20 vertex seems to be enough for a rectangle
@@ -90,8 +98,7 @@ class PauseMenuStage extends Stage {
         });
 
         // Continue playing OR share (if game over) button
-        // TODO Enable both actions for this button? Or leave play?
-        final SoftButton playButton = new SoftButton(2, "play_texture");
+        playButton = new SoftButton(2, "play_texture");
         table.add(playButton).space(16);
 
         playButton.addListener(new ChangeListener() {
@@ -143,6 +150,16 @@ class PauseMenuStage extends Stage {
     }
 
     void showGameOver(final String gameOverReason) {
+        if (game.shareChallenge != null) {
+            playButton.updateImage("share_texture");
+            playButton.addListener(new ChangeListener() {
+                public void changed(ChangeEvent event, Actor actor) {
+                    game.shareChallenge.shareScreenshot(
+                            game.shareChallenge.saveChallengeImage(scorer.getCurrentScore()));
+                }
+            });
+        }
+
         band.setMessage(gameOverReason);
         show();
     }