check proper permission at saving file in ReadTextActivity

app/src/main/kotlin/com/simplemobiletools/filemanager/pro/activities/MainActivity.kt

@@ -345,15 +345,6 @@ class MainActivity : SimpleActivity() {
         }
     }
 
-    @SuppressLint("NewApi")
-    private fun hasStoragePermission(): Boolean {
-        return if (isRPlus()) {
-            Environment.isExternalStorageManager()
-        } else {
-            hasPermission(PERMISSION_WRITE_STORAGE)
-        }
-    }
-
     private fun initFileManager(refreshRecents: Boolean) {
         if (intent.action == Intent.ACTION_VIEW && intent.data != null) {
             val data = intent.data

app/src/main/kotlin/com/simplemobiletools/filemanager/pro/activities/ReadTextActivity.kt

@@ -15,7 +15,10 @@ import android.widget.ImageView
 import android.widget.TextView
 import com.simplemobiletools.commons.dialogs.ConfirmationAdvancedDialog
 import com.simplemobiletools.commons.extensions.*
-import com.simplemobiletools.commons.helpers.*
+import com.simplemobiletools.commons.helpers.NavigationIcon
+import com.simplemobiletools.commons.helpers.REAL_FILE_PATH
+import com.simplemobiletools.commons.helpers.SAVE_DISCARD_PROMPT_INTERVAL
+import com.simplemobiletools.commons.helpers.ensureBackgroundThread
 import com.simplemobiletools.commons.views.MyEditText
 import com.simplemobiletools.filemanager.pro.R
 import com.simplemobiletools.filemanager.pro.dialogs.SaveAsDialog
@@ -170,14 +173,14 @@ class ReadTextActivity : SimpleActivity() {
             }
         } else {
             SaveAsDialog(this, filePath, false) { path, _ ->
-                handlePermission(PERMISSION_WRITE_STORAGE) { isPermissionGranted ->
+                if (hasStoragePermission()) {
-                    if (isPermissionGranted) {
                     val file = File(path)
                     getFileOutputStream(file.toFileDirItem(this), true) {
                         val shouldOverwriteOriginalText = path == filePath
                         saveTextContent(it, shouldExitAfterSaving, shouldOverwriteOriginalText)
                     }
-                    }
+                } else {
+                    toast(R.string.no_storage_permissions)
                 }
             }
         }

app/src/main/kotlin/com/simplemobiletools/filemanager/pro/activities/SimpleActivity.kt

@@ -1,6 +1,11 @@
 package com.simplemobiletools.filemanager.pro.activities
 
+import android.annotation.SuppressLint
+import android.os.Environment
 import com.simplemobiletools.commons.activities.BaseSimpleActivity
+import com.simplemobiletools.commons.extensions.hasPermission
+import com.simplemobiletools.commons.helpers.PERMISSION_WRITE_STORAGE
+import com.simplemobiletools.commons.helpers.isRPlus
 import com.simplemobiletools.filemanager.pro.R
 
 open class SimpleActivity : BaseSimpleActivity() {
@@ -27,4 +32,13 @@ open class SimpleActivity : BaseSimpleActivity() {
     )
 
     override fun getAppLauncherName() = getString(R.string.app_launcher_name)
+
+    @SuppressLint("NewApi")
+    fun hasStoragePermission(): Boolean {
+        return if (isRPlus()) {
+            Environment.isExternalStorageManager()
+        } else {
+            hasPermission(PERMISSION_WRITE_STORAGE)
+        }
+    }
 }