couple minor changes related to save image code style

app/src/main/kotlin/com/simplemobiletools/draw/activities/MainActivity.kt

@@ -35,19 +35,17 @@ import java.io.FileOutputStream
 import java.io.IOException
 
 class MainActivity : SimpleActivity(), MyCanvas.PathsChangedListener {
+    private val FOLDER_NAME = "images"
+    private val FILE_NAME = "simple-draw.png"
+    private val SAVE_FOLDER_NAME = "Simple Draw"
+    private val STORAGE_PERMISSION = 1
+
     private var curFileName: String? = null
     private var curExtensionId = 0
 
     private var color = 0
     private var strokeWidth = 0f
 
-    companion object {
-        private val FOLDER_NAME = "images"
-        private val FILE_NAME = "simple-draw.png"
-        private val SAVE_FOLDER_NAME = "Simple Draw"
-        private val STORAGE_PERMISSION = 1
-    }
-
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
@@ -85,7 +83,7 @@ class MainActivity : SimpleActivity(), MyCanvas.PathsChangedListener {
 
     override fun onOptionsItemSelected(item: MenuItem): Boolean {
         when (item.itemId) {
-            R.id.menu_save -> saveImage()
+            R.id.menu_save -> trySaveImage()
             R.id.menu_share -> shareImage()
             R.id.clear -> my_canvas.clearCanvas()
             R.id.change_background -> changeBackgroundClicked()
@@ -124,13 +122,16 @@ class MainActivity : SimpleActivity(), MyCanvas.PathsChangedListener {
         }
     }
 
-    private fun saveImage() {
+    private fun trySaveImage() {
         if (!hasWriteStoragePermission()) {
-            ActivityCompat.requestPermissions(this, arrayOf(Manifest.permission.READ_EXTERNAL_STORAGE), STORAGE_PERMISSION)
+            saveImage()
-            return
+        } else {
+            ActivityCompat.requestPermissions(this, arrayOf(Manifest.permission.WRITE_EXTERNAL_STORAGE), STORAGE_PERMISSION)
         }
+    }
 
-        val saveFileView = layoutInflater.inflate(R.layout.save_file, null)
+    private fun saveImage() {
+        val saveFileView = layoutInflater.inflate(R.layout.dialog_save_file, null)
 
         val builder = AlertDialog.Builder(this)
         builder.setTitle(resources.getString(R.string.save_file))

app/src/main/res/layout/dialog_save_file.xml

@@ -6,19 +6,20 @@
     android:orientation="vertical"
     android:padding="@dimen/activity_margin">
 
-    <TextView
+    <com.simplemobiletools.commons.views.MyTextView
         android:id="@+id/file_name_label"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="@string/file_name"/>
 
-    <EditText
+    <com.simplemobiletools.commons.views.MyEditText
         android:id="@+id/file_name"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_below="@+id/file_name_label"
         android:layout_marginBottom="@dimen/activity_margin"
-        android:singleLine="true"/>
+        android:singleLine="true"
+        android:textCursorDrawable="@null"/>
 
     <RadioGroup
         android:id="@+id/extension_radio_group"
@@ -27,16 +28,17 @@
         android:layout_below="@+id/file_name"
         android:checkedButton="@+id/extension_radio_png">
 
-        <RadioButton
+        <com.simplemobiletools.commons.views.MyCompatRadioButton
             android:id="@+id/extension_radio_png"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:text=".png"/>
 
-        <RadioButton
+        <com.simplemobiletools.commons.views.MyCompatRadioButton
             android:id="@+id/extension_radio_svg"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:text=".svg"/>
+
     </RadioGroup>
 </RelativeLayout>