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POHow to associate my app to a file type in Android
 

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  1. POHow to associate my app to a file type in Android
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    <p>I'm working on a music player app and am trying to get it to launch and play the selected song when it's selected in a file explorer. My app shows up in the app list when a music file is clicked, and even launches when selected. However, my playSong function is apparently not set at the action because no song plays. Here are the relevant portions of my manifest.xml. Can someone point me in the right direction?</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android" package="my.app.com" android:versionCode="1" android:versionName="1.0" &gt; &lt;uses-sdk android:minSdkVersion="7" android:targetSdkVersion="15" /&gt; &lt;uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/&gt; &lt;uses-permission android:name="android.permission.INTERNET" /&gt; &lt;uses-permission android:name="android.permission.WAKE_LOCK" /&gt; &lt;application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" &gt; &lt;activity android:name=".MyMusicPlayer" android:excludeFromRecents="true" android:label="@string/app_name" android:theme="@android:style/Theme.NoDisplay" &gt; &lt;intent-filter&gt; &lt;action android:name="android.intent.action.MAIN" /&gt; &lt;category android:name="android.intent.category.LAUNCHER" /&gt; &lt;/intent-filter&gt; &lt;intent-filter&gt; &lt;action android:name="android.intent.action.VIEW" /&gt; &lt;category android:name="android.intent.category.DEFAULT" /&gt; &lt;data android:mimeType="audio/*"/&gt; &lt;/intent-filter&gt; &lt;/activity&gt; &lt;service android:name="MusicPlayer" &gt; &lt;/service&gt; &lt;service android:name=".SongListActivity" &gt; &lt;/service&gt;s &lt;/application&gt; &lt;/manifest&gt; </code></pre> <p>Thanks</p>
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    1. COPost the code for `MyMusicPlayer`, at least `onCreate()`
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      1. POHow to associate my app to a file type in Android
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    2. COI don't play a song in onCreate(). All I do is initialize my media player, set all of the controls on the view and set the album art to the first song in the list. Under normal circumstances, when starting the application, the song will be displayed...but the user will have to play it or select another song first. It doesn't play be default. However, the song that is selected in the file explorer isn't even displayed in the UI when I launch my app that way. It just loads the first song in the list like normal. Is there a way to pass the song info to onCreate() if the app is launched that way?
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      1. POHow to associate my app to a file type in Android
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    3. COThe song that the user selected to be opened with your app will be available through the `Intent` that your `MyMusicPlayer` activity receives. You can call `getIntent()` pretty much anywhere from within the activity and retrieve its contents. You're probably going to be interested in the result of [`getIntent().getData()`](http://developer.android.com/reference/android/content/Intent.html#getData%28%29). It'll be a `Uri` that points to the relevant content (`file:///` in the case of a file stored on the device).
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