Fix file opening

.gitignore

@@ -13,3 +13,4 @@
 .externalNativeBuild
 .cxx
 local.properties
+.kotlin

app/src/main/AndroidManifest.xml

@@ -11,6 +11,13 @@
         android:name="android.permission.MANAGE_EXTERNAL_STORAGE"
         tools:ignore="ScopedStorage" />
 
+    <queries>
+        <intent>
+            <action android:name="android.intent.action.MAIN" />
+            <category android:name="android.intent.category.LAUNCHER" />
+        </intent>
+    </queries>
+
     <application
         android:enableOnBackInvokedCallback="true"
         android:requestLegacyExternalStorage="true"

app/src/main/java/pl/lambada/songsync/util/MiscelaneousUtils.kt

@@ -7,6 +7,7 @@ import android.os.Build
 import android.widget.Toast
 import androidx.core.content.FileProvider
 import java.io.File
+import java.nio.file.Files
 
 fun isLegacyFileAccessRequired(filePath: String?): Boolean {
     // Before Android 11, not in internal storage
@@ -27,8 +28,16 @@ fun openFileFromPath(context: Context, filePath: String) {
         Uri.fromFile(file)
     }
 
+    val mime = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+        Files.probeContentType(file.toPath())
+    } else run {
+        val extension = file.extension
+        val mimeTypeMap = android.webkit.MimeTypeMap.getSingleton()
+        mimeTypeMap.getMimeTypeFromExtension(extension)
+    }
+
     val intent = Intent(Intent.ACTION_VIEW)
-        .setDataAndType(uri, "audio/mp3")
+        .setDataAndType(uri, mime)
         .addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
 
     if (intent.resolveActivity(context.packageManager) != null) {