<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
public class CustomBehavior extends CoordinatorLayout.Behavior<View> {
private static final String TAG = "CustomBehavior";
@Override
public boolean layoutDependsOn(CoordinatorLayout parent, View child, View dependency) {
return dependency instanceof NestedScrollView;
}
@Override
public boolean onDependentViewChanged(CoordinatorLayout parent, View child, View dependency) {
int top = dependency.getTop();
child.setTranslationY(top);
child.setScaleX(1 - (top / (float) dependency.getHeight()));
child.setScaleY(1 - (top / (float) dependency.getHeight()));
return true;
}
}
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.widget.NestedScrollView
android:id="@+id/nestedScrollView"
android:layout_width="match_parent"
android:layout_height="match_parent">
</android.support.v4.widget.NestedScrollView>
<View
android:id="@+id/customView"
android:layout_width="200dp"
android:layout_height="200dp"
android:background="@color/colorAccent"
app:layout_behavior=".CustomBehavior"/>
</android.support.design.widget.CoordinatorLayout>
