Question

我在程序中放了一个按钮。单击时，会发出通知。以下代码正常运行，并发出通知。

public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Button create=(Button)findViewById(R.id.button_creat);

    create.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            displayNotification(getAppleationContext());
        }
    });

}
 public void displayNotification(Context context) 
{

  NotificationCompat.Builder mBuilder = new      NotificationCompat.Builder(this);
  mBuilder = new NotificationCompat.Builder(context)
  .setSmallIcon(R.drawable.ic_launcher)
  .setContentTitle("berhooz")
  .setContentText("ahmadi hastam")
  .setTicker("hello")
  .setAutoCancel(true);

    Intent notificationIntent = new Intent(context, SecoundActivity.class);
         notificationIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
         notificationIntent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);//single top to avoid                //creating many activity stacks queue
  PendingIntent contentIntent = PendingIntent.getActivity(context, 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
  mBuilder.setContentIntent(contentIntent);
  notificationManager = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);
  notificationManager.notify(1, mBuilder.build());
}

但我宁愿使用这段代码

 Intent notificationIntent = new Intent(context, SecoundActivity.class);

我使用以下代码：（使用操作调用活动）

Intent notificationIntent = new Intent("aa.bb.cc.dd");

但是，当我点击通知时，没有任何事情发生！

AndroidManifest中的

：

 <activity android:name="SecoundActivity"></activity>
        <intent-filter>
            <action android:name="aa.bb.cc.dd"></action>
        </intent-filter>

Answer 1

要使用自定义操作启动活动，您还需要在category中将DEFAULT指定为intent-filter：

 <activity android:name="SecoundActivity">
        <intent-filter>
            <action android:name="aa.bb.cc.dd" />
            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
</activity>

通知没有在android中启动活动

1 个答案: