Diminuzione e aumento del brightness in base al fatto che stia playando o no. Workaround #1

src/com/androidhive/musicplayer/MusicPlayerActivity.java

@@ -18,6 +18,7 @@ import android.os.Bundle;
 import android.os.Handler;
 import android.util.Log;
 import android.view.View;
+import android.view.WindowManager;
 import android.widget.ImageButton;
 import android.widget.SeekBar;
 import android.widget.TextView;
@@ -40,6 +41,8 @@ public class MusicPlayerActivity extends Activity implements OnCompletionListene
 	// Media Player
 	private  MediaPlayer mp;
 	// Handler to update UI timer, progress bar etc,.
+	private WindowManager.LayoutParams layout;
+	
 	private Handler mHandler = new Handler();
 	private SongsManager songManager;
 	private Utilities utils;
@@ -54,6 +57,9 @@ public class MusicPlayerActivity extends Activity implements OnCompletionListene
 	public void onCreate(Bundle savedInstanceState) {
 		super.onCreate(savedInstanceState);
 		setContentView(R.layout.pl_player);
+		
+		layout = getWindow().getAttributes();
+		
 		Log.d(LOG_TAG, "onCreate()");
 		// All player buttons
 		btnPlay = (ImageButton) findViewById(R.id.btnPlay);
@@ -265,6 +271,9 @@ public class MusicPlayerActivity extends Activity implements OnCompletionListene
 			
 			@Override
 			public void onClick(View arg0) {
+				layout.screenBrightness = -1;
+				getWindow().setAttributes(layout);
+				
 				Intent i = new Intent(getApplicationContext(), PlayListActivity.class);
 				startActivityForResult(i, 100);			
 			}
@@ -275,6 +284,7 @@ public class MusicPlayerActivity extends Activity implements OnCompletionListene
 	@Override
 	protected void onResume() {
 		super.onResume();
+		
 	    resumeSong();
 	}
 	
@@ -292,6 +302,9 @@ public class MusicPlayerActivity extends Activity implements OnCompletionListene
 	    	} else {
 	    		playng=true;
 	    	}
+	    	
+     		layout.screenBrightness = 0.1f;
+    		getWindow().setAttributes(layout);
 	    } 
 	    
 	    return playng;
@@ -306,10 +319,10 @@ public class MusicPlayerActivity extends Activity implements OnCompletionListene
                                      int resultCode, Intent data) {
         super.onActivityResult(requestCode, resultCode, data);
         if(resultCode == 100){
-         	 currentSongIndex = data.getExtras().getInt("songIndex");
+         	currentSongIndex = data.getExtras().getInt("songIndex");
          	Log.d(LOG_TAG, "onActivityResult(), dalla playlist "+currentSongIndex);
-         	 // play selected song
-             playSong(currentSongIndex);
+         	// play selected song
+            playSong(currentSongIndex);
         }
  
     }
@@ -322,6 +335,10 @@ public class MusicPlayerActivity extends Activity implements OnCompletionListene
 		// Play song
 		try {
 			Log.d(LOG_TAG, "playSong() "+songIndex);
+			
+     		layout.screenBrightness = 0.1f;
+    		getWindow().setAttributes(layout);
+			
         	mp.reset();
 			mp.setDataSource(songsList.get(songIndex).get("songPath"));
 			mp.prepare();
@@ -448,6 +465,9 @@ public class MusicPlayerActivity extends Activity implements OnCompletionListene
 	    if(mp != null) {
 	    	if(mp.isPlaying()){
 	    		mp.pause();
+	    		
+	    		layout.screenBrightness = -1;
+	    		getWindow().setAttributes(layout);
 	    	}
 	    }
 	}
@@ -456,6 +476,8 @@ public class MusicPlayerActivity extends Activity implements OnCompletionListene
 	 public void onDestroy(){
 		Log.d(LOG_TAG, "onDestroy()");
 		super.onDestroy();
+		layout.screenBrightness = -1;
+		getWindow().setAttributes(layout);
 		if(mp != null) {
 			mHandler.removeCallbacks(mUpdateTimeTask);
 			mp.release();