Android任务栏的图标显示

package com.Example4;import android.app.Activity;import android.app.Notification;import android.app.NotificationManager;import android.app.PendingIntent;import android.content.Context;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;public class Example4 extends Activity implements OnClickListener {/** Called when the activity is first created. */private Context mContext;private Button showButton, cancelButton;private Notification mNotification;private NotificationManager mNotificationManager;private final static int NOTIFICATION_ID = 0x0001;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);setupViews();}public void setupViews() {mContext = Example4.this;showButton = (Button) findViewById(R.id.show);cancelButton = (Button) findViewById(R.id.cancel);mNotification = new Notification(R.drawable.icon, null, System.currentTimeMillis());mNotificationManager = (NotificationManager) this.getSystemService(NOTIFICATION_SERVICE);showButton.setOnClickListener(this);cancelButton.setOnClickListener(this);}public void onClick(View v) {if (v == showButton) {Intent mIntent = new Intent(mContext, Example4.class);mIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);PendingIntent mContentIntent = PendingIntent.getActivity(mContext,0, mIntent, 0);mNotification.setLatestEventInfo(mContext, null, null,mContentIntent);mNotificationManager.notify(NOTIFICATION_ID, mNotification);} else if (v == cancelButton) {mNotificationManager.cancel(NOTIFICATION_ID);}}}
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