Total Commander

Posted: **2022-12-30, 23:03 UTC**

Hello everyone,
I'd like to add a button to my app that tells TC's Media Player to immediately open the playlist at

/sdcard/playlist.m3u8

I'd also ideally like to empty the queue before opening the playlist, but I can't make that work either.
Can you help me with the right Java code to achieve this?

E.g. I searched the forum without much success. I tried to put together this and this:

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var intent = new Intent("com.ghisler.android.TotalCommander.MediaPlayerActivity");
intent.setData(Uri.parse("uri:file://exit"));

but it's not working well.

Posted: **2023-01-03, 09:19 UTC**

1. To send the playlist, use the following code:

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var intent = new Intent("com.ghisler.android.TotalCommander.MediaPlayerActivity");
intent.setData(Uri.parse("file:///storage/emulated/0/playlist.m3u8"));
startActivity(intent);

You need to call special functions to prevent a crash when using file URLs. If your app crashes, replace the file: prefix with something else, e.g.
intent.setData(Uri.parse("data:///storage/emulated/0/playlist.m3u8"));

2. You made a little mistake in the URL to exit the player. It should be

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intent.setData(Uri.parse("file://exit"));

or

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intent.setData(Uri.parse("data://exit"));

The url: prefix is only used in the Total Commander button parameter section to tell Total Commander to add an URL via setData. The actual URL comes after this url: prefix.

Posted: **2023-01-04, 01:23 UTC**

Do you know how to deal with the new file providers?
I'm targeting android 33 and I've replaced READ_EXTERNAL_STORAGE with READ_MEDIA_AUDIO.
Then I declared a provider in the manifest and added res/xml/file_paths.xml:

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<paths><external-path name="external_storage" path="."/></paths>

In the activity, I'm calculating the URI with:

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Uri playlistUri() {
  var playlist = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MUSIC), "list.m3u8");
  return FileProvider.getUriForFile(this, BuildConfig.APPLICATION_ID + ".fileprovider", playlist);
}

and launching the intent you suggested to me:

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Intent tcIntent() {
  return new Intent("com.ghisler.android.TotalCommander.MediaPlayerActivity")
      // .setData(playlistUri())
      .setDataAndType(playlistUri(), "audio/x-mpegurl")
      .addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
}

I tried all the variations of the code above (data, dataAndType, with and without flag), but I always receive:

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android.content.ActivityNotFoundException: No Activity found to handle Intent { act=com.ghisler.android.TotalCommander.MediaPlayerActivity dat=content://{APPLICATION_ID}.fileprovider/... typ=audio/x-mpegurl flg=0x1 }

Posted: **2023-01-04, 08:41 UTC**

That's not how it works. When you send a content: URL, you either need to implement your own content provider (either a file provider or raw content provider) and then return the data to the called app when it asks for it.

Or in case of Total Commander, you know that it has access to the file system, so you can send it the file:/// or data:/// URLs directly. You should specify both the app and class, though:

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var intent = new Intent("com.ghisler.android.TotalCommander", "com.ghisler.android.TotalCommander.MediaPlayerActivity");

Posted: **2023-01-04, 10:57 UTC**

The constructor

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Intent(String, String)

doesn't exist, and

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Intent(String)

is meant for actions, not packages or classes.

Here's the fixed version that at least opens Total Commander Media Player:

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new Intent(Intent.ACTION_VIEW)
    .setClassName(
        "com.ghisler.android.TotalCommander",
        "com.ghisler.android.TotalCommander.MediaPlayerActivity")
    .setData(Uri.parse("file:///storage/emulated/0/Music/list.m3u8"));

But with recent Android versions, you cannot use setData as you suggested:

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android.os.FileUriExposedException: file:///storage/emulated/0/Music/list.m3u8 exposed beyond app through Intent.getData()

That's why I started implementing the FileProvider as suggested here (avoiding the hacky solutions that disable the exception), but then the media player has problems opening the files in the m3u:

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java.lang.SecurityException: Permission Denial: reading androidx.core.content.FileProvider uri content://{APPLICATION_ID}.fileprovider/external_storage/Music/01.opus from pid=24667, uid=10362 requires the provider be exported, or grantUriPermission()

A few additional findings:

"file://exit" also triggers FileUriExposedException
"data://exit" triggers ActivityNotFoundException: Unable to find explicit activity class {c.g.a.TotalCommander/c.g.a.TotalCommander.MediaPlayerActivity}
All actions other than Intent.ACTION_VIEW (e.g. ACTION_SEND which seems to be appropriate in this case) trigger ActivityNotFoundException

Posted: **2023-01-06, 15:33 UTC**

Actually you can send file URLs, you just need to tell Android to not cause an exception:

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	public static void disableStrictMode() {
		StrictMode.VmPolicy.Builder builder = new StrictMode.VmPolicy.Builder();
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P)
			builder.detectNonSdkApiUsage();
		StrictMode.setVmPolicy(builder.penaltyLog().build());
	}

Posted: **2023-01-06, 17:50 UTC**

Yes, that's the hack that I linked and that I don't want to use (BTW I think the one I linked would be safer to use than yours).
It's not safe to rely on hacks, first because well, they are hacks, and second because they might suddenly disappear in future versions.
So I guess sooner or later TC must work with File Providers. Do you know how to make them work?

Posted: **2023-01-09, 10:56 UTC**

Have you tried to replace the file: prefix with something else like data: as I suggested? Don't use content: because that's reserved for content URLs.

Posted: **2023-01-09, 10:59 UTC**

As I wrote here, "data:" triggers ActivityNotFoundException.

Posted: **2023-01-09, 11:07 UTC**

You can send the content with my plugin provider prefix, e.g.:
content://com.ghisler.files/storage/emulated/0/file.m3u

Posted: **2023-01-09, 11:47 UTC**

Oh nice, this is perfect!

Posted: **2023-01-09, 13:43 UTC**

Just make sure to properly encode characters not allowed in URLs, like % # etc.

Total Commander

Android intent to open playlist with Media Player

Android intent to open playlist with Media Player

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Re: Android intent to open playlist with Media Player

Re: Android intent to open playlist with Media Player

Re: Android intent to open playlist with Media Player

Re: Android intent to open playlist with Media Player

Re: Android intent to open playlist with Media Player

Re: Android intent to open playlist with Media Player

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Re: Android intent to open playlist with Media Player

Re: Android intent to open playlist with Media Player