尽管使用不同的ID，但无法启动多个待定意图实例。

Question

我给大家介绍一下我想实现的背景。在我的活动中，我使用报警管理器向一个广播接收器发送一个待定意图 ('NotificationBroadcastReceiver'（通知广播接收器）。)，其任务是显示通知。当用户点击操作按钮(SNOOZE和POSTPONE)时，它就会向另一个接收器发送一个广播(Broadcast)。'NotificationActionReceiver')，然后执行相应的操作--如果是推迟，它就会在一段时间后发送一个Alarm，将广播发送给 'NotificationBroadcastReceiver'（通知广播接收器）。 (这样一来 SAME 可以显示通知）。)

这就是问题所在。该 DONE 和 暂停 动作在2个不同的 "待定意图 "上运行，虽然我为它们提供了不同的参数，但只有Postpone的那个动作被启动。我哪里做错了？

NotificationBroadcastReceiver:

package com.coffeetech.kittycatch;

import android.app.AlarmManager;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.os.Build;

import androidx.core.app.NotificationCompat;
import androidx.core.app.NotificationManagerCompat;

public class NotificationBroadcastReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        int type; // 0 for Daily reminder, 1 for Shopping reminder
        type = intent.getIntExtra("reminder", -1);

        //below code for action
        Intent postponeIntent, doneIntent;
        PendingIntent postponePendingIntent, donePendingIntent;

        postponeIntent = new Intent(context,NotificationActionReceiver.class);
        postponeIntent.setAction("postpone");
        postponeIntent.putExtra("type",type);

        doneIntent = new Intent(context,NotificationActionReceiver.class);
        postponeIntent.setAction("done");
        doneIntent.putExtra("type",type);

        //MAYBE THE PROBLEM IS IN THE BELOW 2 LINES
        postponePendingIntent = PendingIntent.getBroadcast(context,3,postponeIntent,PendingIntent.FLAG_CANCEL_CURRENT);
        donePendingIntent = PendingIntent.getBroadcast(context,4,doneIntent,PendingIntent.FLAG_CANCEL_CURRENT);



        //below code for user tap on notification
        Intent reminderIntent = new Intent(context, MainActivity.class);
        reminderIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
        PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, reminderIntent, 0);
        String title, text;

        switch (type) {
            case 0: //FOR EVERYDAY NOTIFICATIONS
                title = "Daily Reminder";
                text = "Time to update the quantities";
                break;
            case 1: //BELOW CODE TO MAKE AND SHOW SHOPPING NOTIFICATION
                title = "Shopping Reminder";
                text = "You need to buy certain things!";
                break;
            default:
                title = "ERROR";
                text = "in the Broadcast Receiver";
        }

        try {
            NotificationCompat.Builder builder = new NotificationCompat.Builder(context, "kitty catch notification")
                    .setSmallIcon(R.drawable.ic_stat_name)
                    .setPriority(NotificationCompat.PRIORITY_HIGH)
                    .setContentIntent(pendingIntent)
                    .setAutoCancel(false)
                    .setAllowSystemGeneratedContextualActions(false)
                    .setContentTitle(title)
                    .setContentText(text)
                    .setCategory(NotificationCompat.CATEGORY_REMINDER)
                    .setLargeIcon(BitmapFactory.decodeResource(context.getPackageManager().getResourcesForApplication("com.coffeetech.kittycatch"), R.drawable.ic_launcher_foreground))
                    .addAction(R.drawable.ic_snooze, "POSTPONE", postponePendingIntent)
                    .addAction(R.drawable.ic_done, "DONE", donePendingIntent);

            // notificationId is a unique int for each notification that you must define
            NotificationManagerCompat notificationManager = NotificationManagerCompat.from(context);
            notificationManager.notify(type, builder.build());

        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }
    }
}

NotificationActionReceiver:

package com.coffeetech.kittycatch;

import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.widget.Toast;

import androidx.core.app.NotificationCompat;
import androidx.core.app.NotificationManagerCompat;

public class NotificationActionReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();
        int type = intent.getIntExtra("type", -1);

        NotificationManagerCompat notificationManager = NotificationManagerCompat.from(context);

        //remove existing notification
        notificationManager.cancel(type);

        if(action == "done"){
            if(type == 1) {
                Intent doneIntent = new Intent("reset");
                doneIntent.putExtra("reset", true);
                context.sendBroadcast(doneIntent);
            }
        }else{
            Intent snoozeIntent = new Intent(context, NotificationBroadcastReceiver.class);
            snoozeIntent.putExtra("reminder", type);
            snoozeIntent.setAction("another notification");
            PendingIntent pendingIntent = null;
            //try {
                //pendingIntent = PendingIntent.getBroadcast(context.createPackageContext("com.coffeetech.kittycatch",0), 8, snoozeIntent, PendingIntent.FLAG_CANCEL_CURRENT);
                pendingIntent = PendingIntent.getBroadcast(context, 8, snoozeIntent, PendingIntent.FLAG_CANCEL_CURRENT);
            //} catch (PackageManager.NameNotFoundException e) {
              //  e.printStackTrace();
            //}
            int minutes = 1;
            AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
            alarmManager.cancel(pendingIntent);
            alarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + minutes * 60000, pendingIntent);
        }
    }
}

Answer 1

每个待定意图都需要一个动作。

broadcastIntent.setAction("button1");

在你的广播接收器中，你可以用intent.getaction()来捕捉意图。

希望能帮到你。