android: Fixed crash on Google Play when selecting user dir on SD card

src/android/app/src/main/java/org/citra/citra_emu/NativeLibrary.kt

@@ -25,6 +25,7 @@ import androidx.fragment.app.DialogFragment
 import androidx.preference.PreferenceManager
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import org.citra.citra_emu.activities.EmulationActivity
+import org.citra.citra_emu.utils.BuildUtil
 import org.citra.citra_emu.utils.FileUtil
 import org.citra.citra_emu.utils.Log
 import org.citra.citra_emu.utils.RemovableStorageHelper
@@ -637,6 +638,8 @@ object NativeLibrary {
     @Keep
     @JvmStatic
     fun getUserDirectory(uriOverride: Uri? = null): String {
+        BuildUtil.assertNotGooglePlay()
+
         val preferences: SharedPreferences =
             PreferenceManager.getDefaultSharedPreferences(CitraApplication.appContext)
 

src/android/app/src/main/java/org/citra/citra_emu/fragments/SetupFragment.kt

@@ -568,6 +568,7 @@ class SetupFragment : Fragment() {
             return@registerForActivityResult
         }
 
+        if (BuildConfig.FLAVOR != "googlePlay") {
             if (NativeLibrary.getUserDirectory(result) == "") {
                 SelectUserDirectoryDialogFragment.newInstance(
                     mainActivity,
@@ -576,6 +577,7 @@ class SetupFragment : Fragment() {
                 ).show(mainActivity.supportFragmentManager, SelectUserDirectoryDialogFragment.TAG)
                 return@registerForActivityResult
             }
+        }
 
         CitraDirectoryHelper(requireActivity(), true).showCitraDirectoryDialog(result, pageButtonCallback, checkForButtonState)
     }

src/android/app/src/main/java/org/citra/citra_emu/ui/main/MainActivity.kt

@@ -364,6 +364,7 @@ class MainActivity : AppCompatActivity(), ThemeProvider {
                 return@registerForActivityResult
             }
 
+            if (BuildConfig.FLAVOR != "googlePlay") {
                 if (NativeLibrary.getUserDirectory(result) == "") {
                     SelectUserDirectoryDialogFragment.newInstance(
                         this,
@@ -372,6 +373,7 @@ class MainActivity : AppCompatActivity(), ThemeProvider {
                     ).show(supportFragmentManager, SelectUserDirectoryDialogFragment.TAG)
                     return@registerForActivityResult
                 }
+            }
 
             CitraDirectoryHelper(this@MainActivity, permissionsLost)
                 .showCitraDirectoryDialog(result, buttonState = {})