Android - BroadcastReceiver 不接收自定义 Intent

Question

我有:

MyApp 使用 onCreate 扩展应用程序:

sendBroadcast(refreshAlarm);

Log.d(TAG, "broadcast sent with intent " + refreshAlarm);
Log.d(TAG, "onCreate");

在哪里

static final Intent refreshAlarm = new Intent(ACTION_REFRESH_RECEIVER);
public static final String ACTION_REFRESH_RECEIVER = "com.example.myapp.REFRESH_RECEIVER";

广播接收者:

package com.example.myapp;

import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.preference.PreferenceManager;
import android.util.Log;

public class RefreshReceiver extends BroadcastReceiver
{
    private static final String TAG = "RefreshReceiver";

    @Override
    public void onReceive(Context context, Intent intent)
    {
        Log.d(TAG, "broadcast received with intent " + intent);
        long interval = Long
                .parseLong(PreferenceManager.getDefaultSharedPreferences(
                        context).getString("delay", "900")) * 1000;

        PendingIntent operation = PendingIntent.getService(context, -1,
                new Intent(context, RefreshService.class),
                PendingIntent.FLAG_UPDATE_CURRENT);

        AlarmManager alarmManager = (AlarmManager) context
                .getSystemService(Context.ALARM_SERVICE);

        alarmManager.cancel(operation);

        if (interval > 0)
        {
            alarmManager.setInexactRepeating(AlarmManager.RTC_WAKEUP,
                    System.currentTimeMillis(), interval, operation);
        }

        Log.d(TAG, "onReceive: delay = " + interval);
    }
}

在 list 中声明:

<receiver android:name="com.example.myapp.RefreshReceiver" >
    <intent-filter>
        <action android:name="android.intent.action.BOOT_COMPLETED" />
         <action android:name="com.example.myapp.REFRESH_RECEIVER" />
    </intent-filter>
</receiver>

在我看来，我已经拥有完成这项工作所需的一切。广播在 onCreate 中发送(我可以在日志中看到它确实已发送)。广播是用 Intent 过滤器声明的，以接收 refreshAlarm Intent ，但它没有收到它，我不知道为什么。我还需要什么吗？

Answer 1

如果您将 BroadCastReceiver 放在 mainfest.xml 中，则无需在代码中注册它，仅当您在代码中创建它时才在代码中注册它

这是这里的例子:

 <receiver android:name="MyReceiver" >
        <intent-filter>
            <action android:name="android.mybroadcast" />
        </intent-filter>
    </receiver>

在这里从你的类文件中调用它，

Intent intent = new Intent();
intent.setAction("android.mybroadcast");
sendBroadcast(intent);