home键监听

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http://blog.csdn.net/dany1202/archive/2011/06/14/6543769.aspx

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注册：

IntentFilter filter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
		mCloseSystemDialogsReceiver = new CloseSystemDialogsIntentReceiver();
        registerReceiver(mCloseSystemDialogsReceiver, filter);

监听：

private class CloseSystemDialogsIntentReceiver extends BroadcastReceiver {
        @Override
        public void onReceive(Context context, Intent intent) {     
                	
            String reason = intent.getStringExtra("reason");
            Log.d(TAG, "CloseSystemDialogsIntentReceiver reason is " + reason);
            if ("homekey".equals(reason)) {
               Log.d(TAG,"homekey click=========================");
//               EditWidget.this.finish();
               keyHomeFlag = true;
            }
           
        }
    }