How to do the new PlayStore parallax effect

Question

Does anyone know how can I achieve the new parallax scrolling effect - you can see the effect when you open an app on the PlayStore and try to scroll down, the content goes

Answer 1

There's a library called FadingActionBar that does exactly what you're asking for. You can find the library on GitHub (click) and a Demo-Application in the Play Store (click).

Usage would be something like this:

FadingActionBarHelper helper = new FadingActionBarHelper()
    // Set the ActionBar drawable - basically the color
    .actionBarBackground(R.drawable.ab_background)
    // Set the Header - usually an image
    .headerLayout(R.layout.header)
    // Set the main layout
    .contentLayout(R.layout.activity_scrollview);
setContentView(helper.createView(this));
helper.initActionBar(this);