Android Open Source - RS-Text-Forwarder-Android-Client Application

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License

The source code is released under:

GNU General Public License

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Java Source Code

/*
 * Copyright (C) 2012-2013 Jorrit "Chainfire" Jongma
 *// w w  w.j ava2  s. c  o m
 * 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 eu.chainfire.libsuperuser;

import android.content.Context;
import android.os.Handler;
import android.widget.Toast;

/**
 * Base application class to extend from, solving some issues with
 * toasts and AsyncTasks you are likely to run into
 */
public class Application extends android.app.Application {
  /**
   * Shows a toast message
   * 
   * @param context Any context belonging to this application
   * @param message The message to show
   */
  public static void toast(Context context, String message) {
    // this is a static method so it is easier to call,
    // as the context checking and casting is done for you
    
    if (context == null) return;
    
    if (!(context instanceof Application)) {
      context = context.getApplicationContext();
    }
    
    if (context instanceof Application) {
      final Context c = context;
      final String m = message;
      
      ((Application)context).runInApplicationThread(new Runnable() {
        @Override
        public void run() {
          Toast.makeText(c, m, Toast.LENGTH_LONG).show();
        }
      });
    }
  }
  
  private static Handler mApplicationHandler = new Handler();
  
  /**
   * Run a runnable in the main application thread
   * 
   * @param r Runnable to run
   */
  public void runInApplicationThread(Runnable r) {
    mApplicationHandler.post(r);
  }
  
  @Override
  public void onCreate() {
    super.onCreate();
    
    try {
      // workaround bug in AsyncTask, can show up (for example) when you toast from a service
      // this makes sure AsyncTask's internal handler is created from the right (main) thread
      Class.forName("android.os.AsyncTask");
    } catch (ClassNotFoundException e) {
    }
  }
}

Java Source Code List