Android – register as music player

androidandroid-manifestaudiofile-associationintentfilter

I'd like to see my app in the list of player ("continue action using…") that pops up when I try to open an audio file (ie. from file browser or gmail attachment).
Here are the intent filters I've tried for my MainActivity: 

    <intent-filter>
        <action android:name="android.intent.action.MAIN" />

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

    <intent-filter>
        <action android:name="android.intent.action.SEARCH" />
    </intent-filter>

    <intent-filter>
        <action android:name="android.intent.action.MUSIC_PLAYER" />
    </intent-filter>

    <intent-filter>
        <action android:name="android.intent.action.MAIN" />
        <category android:name="android.intent.category.CATEGORY_APP_MUSIC" />
    </intent-filter>

    <intent-filter>
        <action android:name="android.intent.action.VIEW" />
        <data android:mimeType="audio/mpeg" />
    </intent-filter>

thanks for your help !

Best Answer

You always need a <category> on an <activity> <intent-filter>, as there is always at least one category on the Intent used with startActivity().

Here is what the AOSP Music app uses:

        <intent-filter>
            <action android:name="android.intent.action.VIEW" />
            <category android:name="android.intent.category.DEFAULT" />
            <data android:scheme="file"/>
            <data android:mimeType="audio/*"/>
            <data android:mimeType="application/ogg"/>
            <data android:mimeType="application/x-ogg"/>
            <data android:mimeType="application/itunes"/>
        </intent-filter>
        <intent-filter>
            <action android:name="android.intent.action.VIEW" />
            <category android:name="android.intent.category.DEFAULT" />
            <category android:name="android.intent.category.BROWSABLE" />
            <data android:scheme="http" />
            <data android:mimeType="audio/*"/>
            <data android:mimeType="application/ogg"/>
            <data android:mimeType="application/x-ogg"/>
            <data android:mimeType="application/itunes"/>
        </intent-filter>
        <intent-filter
            android:priority="-1">
            <action android:name="android.intent.action.VIEW" />
            <category android:name="android.intent.category.DEFAULT" />
            <category android:name="android.intent.category.BROWSABLE" />
            <data android:scheme="content" />
            <data android:mimeType="audio/*"/>
            <data android:mimeType="application/ogg"/>
            <data android:mimeType="application/x-ogg"/>
            <data android:mimeType="application/itunes"/>
        </intent-filter>
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