Update README.md

Updated Usage and Screenshots

README.md

@@ -6,21 +6,98 @@ FileListerDialog helps you to list and pick file/directory. Library is built for
 
 ### Installing
 
-To use this library simply import it byt placing the following line under dependencies in your build.gradle file
+To use this library simply import it by placing the following line under dependencies in your app module's build.gradle file
+
+This library is posted in jCenter
 
 ```
-   implementation 'yogesh.firzen:FilesLister:1.0.1.f'
+   dependencies {
+      implementation 'yogesh.firzen:FilesLister:1.0.1.f'
+   }
+```
+If any problem occured while importing please add this line to your app module's build. gradle file
+
+```
+   repositories {
+      maven {url "https://dl.bintray.com/firzenyogesh/maven"}
+   }
 ```
 
 This library has dependencies
 
 ```
-  implementation 'com.android.support:appcompat-v7:26.0.0-beta2'
-  implementation 'com.android.support:design:26.0.0-beta2'
-  implementation 'com.android.support:recyclerview-v7:26.0.0-beta2'
-  implementation 'yogesh.firzen:MukkiyaSevaigal:1.0.6'
+   dependencies {
+      implementation 'com.android.support:appcompat-v7:26.0.0-beta2'
+      implementation 'com.android.support:design:26.0.0-beta2'
+      implementation 'com.android.support:recyclerview-v7:26.0.0-beta2'
+      implementation 'yogesh.firzen:MukkiyaSevaigal:1.0.6'
+   }
 ```
 
+## Usage
+
+After importing the library you can use FileListerDialog to list the files and pick one among them. Simply follow the steps
+
+1. Create an instance of FileListerDialog by using the static method createFileListerDialog()
+
+   Default Instance:
+   ```   
+      FileListerDialog fileListerDialog = FileListerDialog.createFileListerDialog(context);
+   ```   
+   Instance with a theme for Dialog:
+   ```   
+      FileListerDialog fileListerDialog = FileListerDialog.createFileListerDialog(context);
+   ```   
+2. Set OnFileSelectedListener so that you get what file/ directory has been selected
+   ```   
+      filelister.setOnFileSelectedListener(new OnFileSelectedListener() {
+            @Override
+            public void onFileSelected(File file, String path) {
+                  //your code here
+            }
+      });
+   ```
+3. Set the default directory to load when showing the dialog:
+
+   Using a file
+
+   ```
+      fileListerDialog.setDefaultDir(file);
+   ```
+
+   Using a file path
+
+   ```
+      fileListerDialog.setDefaultDir(path);
+   ```
+4. Set the File Filter type to filter the type of files to be listed:
+
+   ```
+      fileListerDialog.setFileFilter(FileListerDialog.FILE_FILTER.ALL_FILES);
+   ```
+
+   Possible values are:
+
+   ```
+      FileListerDialog.FILE_FILTER.ALL_FILES
+      FileListerDialog.FILE_FILTER.DIRECTORY_ONLY
+      FileListerDialog.FILE_FILTER.IMAGE_ONLY
+      FileListerDialog.FILE_FILTER.VIDEO_ONLY
+      FileListerDialog.FILE_FILTER.AUDIO_ONLY
+   ```  
+
+
+## Screenshots
+
+![](raw/Screenshot_1500726143.png?raw=true)
+![](raw/Screenshot_1500726169.png?raw=true)
+![](raw/Screenshot_1500726176.png?raw=true)
+![](raw/Screenshot_1500726185.png?raw=true)
+When a Directory is picked
+![](raw/Screenshot_1500726269.png?raw=true)
+When a file is picked
+![](raw/Screenshot_1500726291.png?raw=true)
+
 
 ## Authors