fix crash

Signed-off-by: alperozturk96 <alper_ozturk@proton.me>

Author: alperozturk96

app/src/main/java/com/owncloud/android/ui/activity/FileActivity.java

@@ -569,6 +569,7 @@ public void showLoadingDialog(String message) {
             }
 
             FragmentManager fragmentManager = getSupportFragmentManager();
+            fragmentManager.executePendingTransactions();
             Fragment existingDialog = fragmentManager.findFragmentByTag(DIALOG_WAIT_TAG);
 
             if (existingDialog instanceof LoadingDialog loadingDialog) {
@@ -601,6 +602,7 @@ public void dismissLoadingDialog() {
             }
 
             FragmentManager fragmentManager = getSupportFragmentManager();
+            fragmentManager.executePendingTransactions();
             Fragment fragment = fragmentManager.findFragmentByTag(DIALOG_WAIT_TAG);
 
             if (fragment instanceof LoadingDialog loadingDialogFragment) {

app/src/main/java/com/owncloud/android/ui/activity/FileDisplayActivity.kt

@@ -3063,10 +3063,10 @@ class FileDisplayActivity :
 
     @JvmOverloads
     fun showFile(selectedFile: OCFile?, message: String?, lastSearchQuery: String? = null) {
-        dismissLoadingDialog()
-
         getOCFileListFragmentFromFile(object : TransactionInterface {
             override fun onOCFileListFragmentComplete(listOfFiles: OCFileListFragment) {
+                dismissLoadingDialog()
+
                 if (message?.isEmpty() == true) {
                     val temp = file
                     file = getCurrentDir()