通知 notification

最新推荐文章于 2026-01-04 14:31:15 发布

原创最新推荐文章于 2026-01-04 14:31:15 发布 · 398 阅读

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#android #通知

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package com.example.notification;

import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.os.Bundle;
import android.support.v4.app.NotificationCompat;
import android.view.View;
import android.widget.Button;

public class MainActivity extends Activity {

	 private final int NOTIFICATION_ID = 105;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
	
		Button send = (Button) findViewById(R.id.send);
		send.setOnClickListener(new View.OnClickListener() {
			
			@Override
			public void onClick(View v) {
				sendNotification();
				
			}
		});
		
		Button clear = (Button) findViewById(R.id.clear);  
        clear.setOnClickListener(new View.OnClickListener() {  
  
            @Override  
            public void onClick(View v) {  
                clearNotification();  
            }  
        });    
	}
	
	private void sendNotification(){
		NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
		NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this);
		mBuilder.setSmallIcon(R.drawable.ic_launcher);
		mBuilder.setContentTitle("来自徐华清");
		mBuilder.setContentText("烟花易冷，很好听！");
		
		Notification notification = mBuilder.build();
		
		//缺省设置为当发送通知到通知栏的时候：提示声音+震动
		notification.defaults = Notification.DEFAULT_SOUND | Notification.DEFAULT_VIBRATE;
		
		//通知的时间
		notification.when = System.currentTimeMillis();
		
		//发送到手机的通知栏
		notificationManager.notify(NOTIFICATION_ID, notification);
		
	}
	
	private void clearNotification(){
		NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);  
        notificationManager.cancel(NOTIFICATION_ID);  
	}
}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:orientation="vertical"
    tools:context="com.example.notification.MainActivity" >

    <Button  
        android:id="@+id/send"  
        android:layout_width="wrap_content"  
        android:layout_height="wrap_content"  
        android:text="发送通知" />  
      
     <Button  
        android:id="@+id/clear"  
        android:layout_width="wrap_content"  
        android:layout_height="wrap_content"  
        android:text="清除通知" />  

</LinearLayout>