Android Open Source - droidparts-battery-widget Notification Screen Overlay

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License

The source code is released under:

Apache License

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Java Source Code

/*
 * Copyright (C) 2012 Herbert Straub, herbert@linuxhacker.at
 *//  ww w  . ja  v a  2  s.  c  om
 * 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
 *
 *      http://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.
 */

package at.linuxhacker.notifications;

import static at.linuxhacker.battery_widget.BatteryWidget.TAG;
import android.content.Context;
import android.graphics.PixelFormat;
import android.os.CountDownTimer;
import android.util.Log;
import android.view.Gravity;
import android.view.WindowManager;

public class NotificationScreenOverlay {
  private Context context = null;
  private boolean currentlyOverlayActiveFlag = false;
  private NotificationScreenOverlayView mView = null;
  
  public NotificationScreenOverlay(Context context) {
    this.context = context;
  }
  
  public void displayText( String textToDisplay ) {
    /*
     * FIXME We need a Queue system. Look at the textToSpeach implementation
     */
    
    if ( this.currentlyOverlayActiveFlag ) {
      Log.d( TAG, "showBattaryInformationOverlay: forget: " + textToDisplay );
      return;
    }
    
    Log.d( TAG, "showBattaryInformationOverlay: " + textToDisplay );
    this.currentlyOverlayActiveFlag = true; // We are active, reset in Timer
    
    this.mView = new NotificationScreenOverlayView( this.context );
    this.mView.setDisplayText( textToDisplay );

    WindowManager.LayoutParams params = new WindowManager.LayoutParams(
        WindowManager.LayoutParams.MATCH_PARENT,
        WindowManager.LayoutParams.WRAP_CONTENT,
        WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY,
        WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
            | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE,
        PixelFormat.TRANSLUCENT );
    params.gravity = Gravity.RIGHT | Gravity.TOP;
    params.setTitle( "Load Average" );
    WindowManager wm = ( WindowManager ) this.context
        .getSystemService( Context.WINDOW_SERVICE );
    wm.addView( mView, params );
    this.countDownDisplayTimer.start( );
  }

  private CountDownTimer countDownDisplayTimer = new CountDownTimer( 5000, 5000 ) {
    public void onTick( long millisUntilFinished ) {

    }

    public void onFinish( ) {
      NotificationScreenOverlay.this.CountDownTimerDisplayTimerFinished( );
    }
  };

  protected void CountDownTimerDisplayTimerFinished( ) {
    WindowManager wm = ( WindowManager ) this.context
        .getSystemService( Context.WINDOW_SERVICE );
    wm.removeView( this.mView );
    this.currentlyOverlayActiveFlag = false;
    Log.d( TAG, "CountDownTimerDisplayTimerFinished" );
  }
}

Java Source Code List