updated example app and README

README.md

@@ -16,7 +16,8 @@ add the lines to AndroidManifest.xml
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
 ```
-NOTE: for android versions >= 6.0 Request Permission from user at runtime before calling this plugin.
+NOTE: for android versions >= 6.0 you need might to request Permission from user at runtime before calling this plugin.
+(There are available plugins that handles permissions on DartLang.)
 
 #### Add import statement
 Import the library
@@ -26,19 +27,14 @@ Import the library
 
 #### Examples
 ``` dart
-    // Fetch thumbnail, store in a specified output folder and return file path
     String thumb = await Thumbnails.getThumbnail(
-        thumbOutputFile:
-            '[YOUR OUTPUT FOLDER PATH TO SAVE THUMBNAILS]', // creates it if it doesnt already exist
+        thumbnailFolder:'[FOLDER PATH TO STORE THUMBNAILS]', // creates the specified path if it doesnt exist
         videoFile: '[VIDEO PATH HERE]',
         imageType: ThumbFormat.PNG,
         quality: 30);
 
-
-// Fetch thumbnail, store in app's Temporary directory output folder and return file path
-    String thumb = await Thumbnails.getThumbnail(
-        videoFile: '[VIDEO PATH HERE]',
-        imageType: ThumbFormat.JPEG,
-        quality: 45);
+    /*
+    * thumbnailFolder property can be omitted if you dont wish to keep the generated thumbails past each usage
+    */
 
 ```

example/lib/main.dart

@@ -10,18 +10,17 @@ class MyApp extends StatefulWidget {
 
 class _MyAppState extends State<MyApp> {
   // Fetch thumbnail and store in a specified output folder
-  void _buildThumbToFile() async {
+  void _toUserFolder() async {
     String thumb = await Thumbnails.getThumbnail(
-        thumbOutputFile:
-            '/storage/emulated/0/Videos/Thumbnails',
+        thumbnailFolder: '/storage/emulated/0/Videos/Thumbnails',
         videoFile: '/storage/emulated/0/Videos/Testvideo.mp4',
         imageType: ThumbFormat.PNG,
         quality: 30);
     print('path to File: $thumb');
   }
 
-// when an output folder is not specified thumbnail are stored in app temporary directory 
-  void _buildThumbToCache() async {
+// when an output folder is not specified thumbnail are stored in app temporary directory
+  void _noFolder() async {
     String thumb = await Thumbnails.getThumbnail(
         videoFile: '/storage/emulated/0/Videos/Testvideo.mp4',
         imageType: ThumbFormat.JPEG,
@@ -40,9 +39,9 @@ class _MyAppState extends State<MyApp> {
           child: Column(
             children: <Widget>[
               RaisedButton(
-                  onPressed: _buildThumbToFile, child: Text('Build To File')),
+                  onPressed: _toUserFolder, child: Text('To Specified Folder')),
               RaisedButton(
-                  onPressed: _buildThumbToCache, child: Text('Build to Cache')),
+                  onPressed: _noFolder, child: Text('No Folder Specified')),
             ],
           ),
         ),

lib/thumbnails.dart

@@ -11,12 +11,12 @@ class Thumbnails {
 
   static Future<String> getThumbnail(
       {@required String videoFile,
-      String thumbOutputFile,
+      String thumbnailFolder,
       ThumbFormat imageType,
       int quality}) async {
     var utilMap = <String, dynamic>{
       'videoFilePath': videoFile,
-      'thumbFilePath': thumbOutputFile,
+      'thumbFilePath': thumbnailFolder,
       'thumbnailFormat': validateType(imageType),
       'thumbnailQuality': validateQuality(quality)
     };

lib/validators.dart

@@ -4,7 +4,8 @@ const DEFAULT_THUMB_QUALITY = 50;
 const DEFAULT_IMAGE_TYPE = ThumbFormat.JPEG;
 
 int validateQuality(int choice) {
-  if (choice < 10 || choice > 100 || choice == null) return DEFAULT_THUMB_QUALITY;
+  if (choice < 10 || choice > 100 || choice == null)
+    return DEFAULT_THUMB_QUALITY;
   return choice;
 }