Dragger

If you want to use these transitions with fragments, take a look at PrismView library!

The library was created in order to provide new animations for activities on Android. Using the ViewDragHelper class, it is possible to create smooth animations that allow full control of the view by the user.

This new component has been created using some concepts described on Flavien Laurent Blog and Denevell Blog.

app_sample_uncompressed

Dragger now uses Rebound(tiny, 41.7kb) from Facebook to provide more realistic animations and improve performance for old devices.

This library should work on API 10 (but not tested yet).

Live Demo

https://play.google.com/store/apps/details?id=com.github.dragger

Usage

You can use this library like a view, you just need to do the following:

    1. Add ''DraggerView'' view to your root layout and add two layouts inside it.
      You can add a shadow view if you want (the first one) and it needs to be invisible.
<com.github.ppamorim.library.DraggerView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    dragger_layout:drag_view_id="@+id/drag_view"
    dragger_layout:shadow_view_id="@+id/shadow_view"
    dragger_layout:drag_position="top">

    <FrameLayout
          android:id="@+id/shadow_view"
          android:layout_width="match_parent"
          android:layout_height="match_parent"
          android:background="@color/transparent"
          android:visibility="invisible"/>

    <LinearLayout
          android:id="@+id/drag_view"
          android:layout_width="match_parent"
          android:layout_height="match_parent"/>

</com.github.ppamorim.library.DraggerView>
XML

In your ''styles'' file, you need a config like this:

<style name="YourTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <item name="android:windowIsTranslucent">true</item>
    <item name="android:windowBackground">@android:color/transparent</item>
    <item name="android:windowNoTitle">true</item>
    <item name="windowActionBar">false</item>
    <item name="android:windowAnimationStyle">@null</item>
</style>
XML

And your ''manifest'':

<activity
    android:name="com.github.dragger.BaseActivity"
    android:theme="@style/YourTheme"/>
XML

Or, if you need it to be fast:

public class YourActivity extends DraggerActivity {
  @Override public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setShadowView(R.layout.custom_shadow); // It is not necessary, use if you want.
    setContentView(R.layout.layout_content);
  }
}
Java

Now you can control the slide of the view, just use the method expand() when you want.

Some methods that you can use:


setDraggerCallback(DraggerCallback) //Interface that's provides some infos of the animation.
setSlideEnabled(boolean) //Enable or disable the drag, useful to use with ScrollViews.
setHorizontalDragRange(float) //Draggable distance that the draggableView can use, horizontally.
setVerticalDragRange(float) //Draggable distance that the draggableView can use, vertically.
setRunAnimationOnFinishInflate(boolean) //Run the initial animation, useful if you only want the drag function.
setDraggerLimit(float) //Set the max limit drag, default is 0.5 (center of the screen).
setDraggerPosition(DraggerPosition) //Set the position of archor.
setTension(float) //Tension of the animation. This represent with the friction, how much time the animation will be executed.
setFriction(float) //Friction of the animation. This represent with the tension, how much friction is applied at the tension animation.
show() //Show the drag view with Rebound animation.
closeActivity() //Simply close the activity with Rebound animation, based of the DraggerPosition choosen.
Java

GitHub