Android-从通知操作按钮调用方法

我知道您可以使用PendingEvents从操作按钮启动活动。如何使a方法在用户单击通知操作按钮时被调用

public static void createNotif(Context context){
    ...
    drivingNotifBldr = (NotificationCompat.Builder) new NotificationCompat.Builder(context)
            .setSmallIcon(R.drawable.steeringwheel)
            .setContentTitle("NoTextZone")
            .setContentText("Driving mode it ON!")
            //Using this action button I would like to call logTest
            .addAction(R.drawable.smallmanwalking, "Turn OFF driving mode", null)
            .setOngoing(true);
    ...
}

public static void logTest(){
    Log.d("Action Button", "Action Button Worked!");
}

---

单击操作按钮时不能直接调用方法

您必须将PendingEvent与BroadcastReceiver或Service一起使用才能执行此操作。下面是一个带有广播接收器的PendingEvent示例

首先让我们构建一个通知

public static void createNotif(Context context){

    ...
    //This is the intent of PendingIntent
    Intent intentAction = new Intent(context,ActionReceiver.class);

    //This is optional if you have more than one buttons and want to differentiate between two
    intentAction.putExtra("action","actionName");

    pIntentlogin = PendingIntent.getBroadcast(context,1,intentAction,PendingIntent.FLAG_UPDATE_CURRENT);
    drivingNotifBldr = (NotificationCompat.Builder) new NotificationCompat.Builder(context)
            .setSmallIcon(R.drawable.steeringwheel)
            .setContentTitle("NoTextZone")
            .setContentText("Driving mode it ON!")
            //Using this action button I would like to call logTest
            .addAction(R.drawable.smallmanwalking, "Turn OFF driving mode", pIntentlogin)
            .setOngoing(true);
    ...

}

现在是接收此意向的接收者

public class ActionReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {

        //Toast.makeText(context,"recieved",Toast.LENGTH_SHORT).show();

        String action=intent.getStringExtra("action");
        if(action.equals("action1")){
            performAction1();
        }
        else if(action.equals("action2")){
            performAction2();

        }
        //This is used to close the notification tray
        Intent it = new Intent(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
        context.sendBroadcast(it);
    }

    public void performAction1(){

    }

    public void performAction2(){

    }

}

<receiver android:name=".ActionReceiver" />

在清单中声明广播接收器

public class ActionReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {

        //Toast.makeText(context,"recieved",Toast.LENGTH_SHORT).show();

        String action=intent.getStringExtra("action");
        if(action.equals("action1")){
            performAction1();
        }
        else if(action.equals("action2")){
            performAction2();

        }
        //This is used to close the notification tray
        Intent it = new Intent(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
        context.sendBroadcast(it);
    }

    public void performAction1(){

    }

    public void performAction2(){

    }

}

<receiver android:name=".ActionReceiver" />

---

希望有帮助。

谢谢，这很有道理。然而，我有点困惑，为什么您将

intentAction

传递到

addAction

。是否更新了

pIntentlogin

。我的错！：）非常感谢你！这应该是Android开发者指南的教程。这是一个很好的答案，但有一部分需要警告；在意图中添加一个额外的元素会导致进一步的混淆：“一个常见的错误：创建多个PendingEvent对象，其意图仅在“额外”内容中有所不同，期望每次都获得不同的PendingEvent。这不会发生。如果您使用两个根据{@link intent#filterEquals等效的意图对象（Intent）Intent.filterEquals}，那么您将为它们获得相同的挂起内容。有两种典型的方法来处理此问题…”