A layout to transition between two views using a Floating Action Button as shown in many Material Design concepts

Min SDK   16
Latest Commit   2015-09-09 08:05:47
License   unknown

Github   https://github.com/truizlop/FABRevealLayout

         

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truizlop
Sweetzpot AS
Madrid, Spain

http://truizlop.github.io

         

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README

README.md

FABRevealLayout

Android Arsenal

A layout to transition between two views using a Floating Action Button as shown in many Material Design concepts

Usage

Sample 1

FABRevealLayout is very simple to use. You only need to include a FloatingActionButton from the Android Design Support Library and two views (namely main and secondary) within the layout. FABRevealLayout will position your views accordingly and provide the transition between them automatically.

<com.truizlop.fabreveallayout.FABRevealLayout
    android:id="@+id/fab_reveal_layout"
    android:layout_width="match_parent"
    android:layout_height="@dimen/fab_reveal_height"
    >

    <android.support.design.widget.FloatingActionButton
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:backgroundTint="@color/some_color"
        android:src="@drawable/some_drawable"
        />

    <RelativeLayout
        android:id="@+id/main_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

		...
    </RelativeLayout>

    <RelativeLayout
        android:id="@+id/secondary_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

		...
    </RelativeLayout>

</com.truizlop.fabreveallayout.FABRevealLayout>

Please note that the secondary view should have a transparent background so that the color animation works correctly.

Further animation

Sample 2

If you want to animate the items inside the views of a FABRevealLayout or perform any other action when the transition is completed, you can register a listener.

private void configureFABReveal(FABRevealLayout fabRevealLayout) {
    fabRevealLayout.setOnRevealChangeListener(new OnRevealChangeListener() {
        @Override
        public void onMainViewAppeared(FABRevealLayout fabRevealLayout, View mainView) {}

        @Override
        public void onSecondaryViewAppeared(final FABRevealLayout fabRevealLayout, View secondaryView) {}
    });
}

Also, to trigger the reveal and hide animations programmatically, you can use the following methods:

fabRevealLayout.revealMainView();
fabRevealLayout.revealSecondaryView();

Limitations

Currently, both main and secondary views inside FABRevealLayout should have the same height so that the animation works properly.

Get it!

FABRevealLayout is available through JCenter. To be able to use this library in your project, add the following dependency to your build.gradle file:

dependencies{
	compile 'com.truizlop.fabreveallayout:library:1.0.0'
}

Acknowledgements

FABRevealLayout is based on this proof of concept by Saúl Molinero and the explanations for curved animations by Chet Haase.

License

Copyright 2015 Tomás Ruiz-López

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.