AndroidParallax

Parallax on Android in the simplest way

Download

compile ('com.github.florent37:androidparallax:1.0.1@aar'){
        transitive=true
}

Usage

Simply replace your ScrollView with a com.github.florent37.parallax.ScrollView

Then add a parallax=FLOAT_VALUE into your view's tag

<com.github.florent37.parallax.ScrollView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    >

    <!-- ...your usual views... -->

    <ImageView
        android:layout_width="match_parent"
        android:layout_height="200dp"
        android:scaleType="centerCrop"
        android:src="@drawable/background"

        android:tag="parallax=0.3" />

    <TextView
        style="@style/MyTitle"
        android:layout_width="match_parent"
        android:layout_height="160dp"
        android:gravity="center"
        android:text="My awesome title"

        android:tag="parallax=0.5" />

    <!-- ...your usual views... -->

</com.github.florent37.parallax.ScrollView>

And no additionnal lines into the activity !

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

}

ParallaxView

If you don't want to play with the android:tag attributes, then you cas simple surround your view with a ParallaxView.

A ParallaxView can move vertically of horizontally Parallax attributes defines a parallax factor for this view

parallaxVertical < 0 : the view will move slower than the scroll
parallaxVertical > 0 : the view will move faster than the scroll

<com.github.florent37.parallax.ParallaxView
         android:layout_width="match_parent"
         android:layout_height="wrap_content"

         app:parallaxVertical="1.1"

         >

         <!-- Your View -->

</com.github.florent37.parallax.ScrollView>

Horizontal translation

parallaxHorizontal < 0 : the view will move to the right
parallaxHorizontal > 0 : the view will move to the left

<com.github.florent37.parallax.ParallaxView
         android:layout_width="match_parent"
         android:layout_height="wrap_content"

         app:parallaxHorizontal="1.1"

         >

          <!-- Your View -->

</com.github.florent37.parallax.ScrollView>

TODO

Add RecyclerView Parallax
Add fading / parallax effect on a toolbar

Community

Looking for contributors, feel free to fork !

Credits

Author: Florent Champigny

License

Copyright 2015 florent37, Inc.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

florent37/AndroidParallax