Android -- Notification-优快云博客

本文介绍了一个简单的Android应用程序，用于演示如何在Android设备上发送和取消通知。通过代码示例展示了如何创建Intent、PendingIntent以及Notification对象，并使用NotificationManager服务来发送和取消通知。

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public class NotificationTest extends Activity
{
    static final int NOTIFICATION_ID = 10;
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Button bn = (Button) findViewById(R.id.bn);
        bn.setOnClickListener(new View.OnClickListener()
        {
            @Override
            public void onClick(View source)
            {
                //创建一个启动其他Activity的Intent
                Intent intent = new Intent(NotificationTest.this
                    , OtherActivity.class);
                PendingIntent pi = PendingIntent.getActivity(NotificationTest.this
                    , 0, intent , 0);
                //创建一个Notification
                Notification notify = new Notification();
                //为Notification设置图标，该图标显示在状态栏
                notify.icon = R.drawable.notify;
                //为Notification设置文本内容，该文本会显示在状态栏
                notify.tickerText = "启动其他Activity的通知";
                //为Notification设置发送时间
                notify.when = System.currentTimeMillis();
                //设置事件信息
                notify.setLatestEventInfo(NotificationTest.this, "普通通知",
                    "点击查看", pi);
                //获取系统的NotificationManager服务
                NotificationManager notificationManager = (NotificationManager)
                    getSystemService(NOTIFICATION_SERVICE);
                //发送通知
                notificationManager.notify(NOTIFICATION_ID, notify);
            }
        });
        Button del = (Button)findViewById(R.id.del);
        del.setOnClickListener(new OnClickListener()
        {
            @Override
            public void onClick(View v)
            {
                //获取系统的NotificationManager服务
                NotificationManager notificationManager = (NotificationManager)
                    getSystemService(NOTIFICATION_SERVICE);
                //取消通知
                notificationManager.cancel(NOTIFICATION_ID);
            }
        });
    }
}

运行结果：