清单广播接收器未触发

Question

我正在尝试捕获在android上为Spotify更改的元数据。

我的清单文件中的活动权限下方有此接收方代码。

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.kuzoncode.test">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <receiver
            android:name=".MyBroadcastReceiver"
            android:enabled="true"
            android:exported="true">

            <intent-filter>
                <action android:name="com.spotify.music.metadatachanged"/>
            </intent-filter>

        </receiver>
    </application>

</manifest>

MyBroadcastReceiver：

package com.kuzoncode.test;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;

public class MyBroadcastReceiver extends BroadcastReceiver {
    static final class BroadcastTypes {
        static final String SPOTIFY_PACKAGE = "com.spotify.music";
        static final String PLAYBACK_STATE_CHANGED = SPOTIFY_PACKAGE + ".playbackstatechanged";
        static final String QUEUE_CHANGED = SPOTIFY_PACKAGE + ".queuechanged";
        static final String METADATA_CHANGED = SPOTIFY_PACKAGE + ".metadatachanged";
    }

    @Override
    public void onReceive(Context context, Intent intent) {
        // This is sent with all broadcasts, regardless of type. The value is taken from
        // System.currentTimeMillis(), which you can compare to in order to determine how
        // old the event is.
        long timeSentInMs = intent.getLongExtra("timeSent", 0L);

        String action = intent.getAction();

        if (action.equals(BroadcastTypes.METADATA_CHANGED)) {
            String trackId = intent.getStringExtra("id");
            String artistName = intent.getStringExtra("artist");
            String albumName = intent.getStringExtra("album");
            String trackName = intent.getStringExtra("track");
            int trackLengthInSec = intent.getIntExtra("length", 0);
            // Do something with extracted information...
        }
    }
}

当我改变音轨时不会触发。我还添加了更改的wifi，以查看是否可以接听，但没有。有谁知道为什么不触发？

Spotify重复是在这里-> https://developer.spotify.com/documentation/android/guides/android-media-notifications/

谢谢！