Pull Back Layout

Pull down to finish an Activity.

Download

repositories {
    // ...
    maven { url "https://jitpack.io" }
}

dependencies {
    // ... support library ...
    // ...
    compile 'com.github.oxoooo:pull-back-layout:1.0.1'
}

Usage

You may refer to one of our apps that already using this library: mr-mantou-android

1. Make your Activity translucent by adding these two lines to your theme:

   <style name="AppTheme" ...>
     <!-- ... -->
   
     <item name="android:windowBackground">@android:color/transparent</item>
     <item name="android:windowIsTranslucent">true</item>
   
     <!-- also translucent system ui -- suggested but not required -->
     <item name="android:windowTranslucentStatus">true</item>
     <item name="android:windowTranslucentNavigation">true</item>
   </style>

2. Wraps ooo.oxo.library.widget.PullBackLayout around your ImageView or ViewPager:

   <ooo.oxo.library.widget.PullBackLayout
     android:id="@+id/puller"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
   
     <android.support.v4.view.ViewPager
         android:id="@+id/pager"
         android:layout_width="match_parent"
         android:layout_height="match_parent" />
   
   </ooo.oxo.library.widget.PullBackLayout>

3. Set a callback:

   public class ViewerActivity extends AppCompatActivity implements PullBackLayout.Callback {
   
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         /* ... */
         puller.setCallback(this);
     }
   
     @Override
     public void onPullStart() {
         // fade out Action Bar ...
         // show Status Bar ...
     }
   
     @Override
     public void onPull(float progress) {
         // set the opacity of the window's background
     }
   
     @Override
     public void onPullCancel() {
         // fade in Action Bar
     }
   
     @Override
     public void onPullComplete() {
         supportFinishAfterTransition();
     }
   
   }

License

MIT License