Android开发之Notification手机状态栏通知用法实例分析

public class MainActivity extends Activity {
  static final int NOTIFICATION_ID = 0x123;
  NotificationManager notificationManager;
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    //获取系统的Notification对象
    notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
   }
  //为发送通知的按钮点击事件定义事件处理方法
  @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
  public void send(View source){
    //创建一个其他Activity的Intent
    Intent intent = new Intent(MainActivity.this,TextActivity.class);
    PendingIntent pendingIntent = PendingIntent.getActivity(MainActivity.this,0,intent,0);
    Notification notification = new Notification.Builder(this)
        //设置打开通知 通知自动消失
        .setAutoCancel(true)
        //设置显示状态栏的通知提示信息
        .setTicker("注目提醒！")
        //设置通知图标
        .setSmallIcon(R.drawable.seek02)
        //设置通知内容标题
        .setContentTitle("该应用发生 爆炸大 大 大 新闻！！")
        //设置通知内容
        .setContentText("冒险没有 你手机自嗨罢了~")
        //设置使用默认的声音 LED灯
        .setDefaults(Notification.DEFAULT_SOUND|Notification.DEFAULT_LIGHTS)
        //设置通知自定义声音
//        .setSound()
        .setWhen(System.currentTimeMillis())
        //设置他只要启动的程序Intent
        .setContentIntent(pendingIntent)
        .build();
    notificationManager.notify(NOTIFICATION_ID,notification);
  }
  public void del(View view){
    //取消通知
    notificationManager.cancel(NOTIFICATION_ID);
  }
}

public class TextActivity extends AppCompatActivity {
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_t_exta_ctivity);
  }
}

<!--消息通知使用到闪光灯和声音权限-->
<uses-permission android:name="android.permission.FLASHLIGHT"/>
<uses-permission android:name="android.permission.VIBRATE"/>