DEPRECATED

Use the FloatingActionButton from the support library instead.

FloatingActionButton

Description

Android [floating action button] which reacts on scrolling events. Becomes visible when an attached target is scrolled up and invisible when scrolled down.

Demo

Integration

1) Add as a dependency to your build.gradle:

dependencies {
    compile 'com.melnykov:floatingactionbutton:1.3.0'
}

2) Add the com.melnykov.fab.FloatingActionButton to your layout XML file. The button should be placed in the bottom right corner of the screen. The width and height of the floating action button are hardcoded to 56dp for the normal and 40dp for the mini button as specified in the [guidelines].

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
             xmlns:fab="http://schemas.android.com/apk/res-auto"
             android:layout_width="match_parent"
             android:layout_height="match_parent">

    <ListView
            android:id="@android:id/list"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />

    <com.melnykov.fab.FloatingActionButton
            android:id="@+id/fab"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="bottom|right"
            android:layout_margin="16dp"
            android:src="@drawable/ic_action_content_new"
            fab:fab_colorNormal="@color/primary"
            fab:fab_colorPressed="@color/primary_pressed"
            fab:fab_colorRipple="@color/ripple" />
</FrameLayout>

3) Attach the FAB to AbsListView, RecyclerView or ScrollView :

ListView listView = (ListView) findViewById(android.R.id.list);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.attachToListView(listView);

Check the sample project to see how to use custom listeners if you need to track scroll events.

4) Add the namespace xmlns:fab="http://schemas.android.com/apk/res-auto" to your layout file.

Set the button type (normal or mini) via the fab_type xml attribute (default is normal):
```
fab:fab_type="mini"
```
or
```
fab.setType(FloatingActionButton.TYPE_MINI);
```

Set the normal and pressed colors via the xml attributes:

fab:fab_colorNormal="@color/primary"
fab:fab_colorPressed="@color/primary_pressed"

fab.setColorNormal(getResources().getColor(R.color.primary));
fab.setColorPressed(getResources().getColor(R.color.primary_pressed));

Enable/disable the button shadow with the fab_shadow xml attribite (it's enabled by default):
```
fab:fab_shadow="false"
```
or
```
fab.setShadow(false);
```

Show/hide the button expliciltly:

fab.show();
fab.hide();

fab.show(false); // Show without an animation
fab.hide(false); // Hide without an animation

Specify the ripple color for API 21+:

fab:fab_colorRipple="@color/ripple"

fab.setColorRipple(getResources().getColor(R.color.ripple));

5) Set an icon for the FloatingActionButton using android:src xml attribute. Use drawables of size 24dp as specified by [guidelines]. Icons of desired size can be generated with [Android Asset Studio].

Changelog

Version 1.3.0

Add the disabled state for the FAB (thanks to Aleksey Malevaniy);
Fix shadow assets. Rename shadow drawables with a prefix;
Generate default pressed and ripple colors (thanks to Aidan Follestad).

Version 1.2.0

Respect an elevation set manually for the FAB;
Don't emit a scroll when the listview is empty;
Add an ability to attach normal listeners for scroll operations (thanks to Bill Donahue).

Version 1.1.0:

Do not ignore negative margins on pre-Lollipop;
Disable clicks on the FAB when it's hidden on pre-Honeycomb;
Some shadow tuning.

Version 1.0.9:

Support API 7;
Fixed extra margins on pre-Lollipop devices;
Fixed mini FAB size;
Updated shadow assets to more accurately match 8dp elevation.

Version 1.0.8:

ATTENTION! Breaking changes for custom listeners. Check an updated sample how to use them.
Added support for the ScrollView;
Significantly optimized scroll detection for the RecyclerView;
Fixed laggy animation for a list view with items of different height;
Added isVisible getter;
Deleted deprecated methods.

Version 1.0.7:

Updated shadow assets to better match material design guidelines;
Make FabOnScrollListener and FabRecyclerOnViewScrollListener implement ScrollDirectionListener for easier custom listeners usage.

Version 1.0.6:

Added support for the RecyclerView;
Added ripple effect and elevation for API level 21.

Thanks to Aidan Follestad.

Version 1.0.5:

Updated shadow to more accurately match the material design spec;

Version 1.0.4:

Allow a custom OnScrollListeners to be attached to a list view;
Work properly with list of different height rows;
Ignore tiny shakes of fingers.

Version 1.0.3:

Add methods to show/hide without animation;
Fix show/hide when a view is not measured yet.

Applications using FloatingActionButton

Please ping me or send a pull request if you would like to be added here.

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FloatingActionButton

Install / Use

README

DEPRECATED

FloatingActionButton

Description

Demo

Integration

Changelog

Applications using FloatingActionButton