Material Design ： FloatingActionButton相关的开源库

第一个：makovkastar/FloatingActionButton

gihub:makovkastar/FloatingActionButton

实现的功能

当AbsListView、RecyclerView、ScrollView 向上滚动的时候，Fab消失；
当向下滚动的时候，FAB出现。
**注意：**FAB的父布局必须是FrameLayout,RelativeLayout都无效。

Gradle

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

XML

<FrameLayout
    android:id="@+id/activity_main"
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.cqc.floatingactionbutton01.MainActivity"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recyclerView"
        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="@android:drawable/ic_input_add"
        app:fab_colorNormal="@color/colorAccent"
        app:fab_colorPressed="@color/colorPrimary"
        app:fab_colorRipple="@color/colorRipple"
        app:fab_type="normal"
        app:fab_shadow="false"/>
FrameLayout>

记得加上：xmlns:app="http://schemas.android.com/apk/res-auto"

java

recyclerView.setLayoutManager(new LinearLayoutManager(context));
recyclerView.setAdapter(new MyAdapter());
fab.attachToRecyclerView(recyclerView);

其它

• 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"

  or

  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"

  or

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

• 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].

源码

https://git.oschina.net/libraryDemo/FloatingActionButton01

futuresimple/android-floating-action-button

包含控件：FloatingActionsMenu、FloatingActionButton、AddFloatingActionButton。menu可以包括fab+afab。
github:android-floating-action-button

xml属性

每个xml属性都有对应的代码设置方式。

xml	说明
app:fab_size=	normal、mini
app:fab_colorNormal=	正常时的颜色
app:fab_colorPressed	按下时的颜色

还有很多其它设置，以后用到了再看吧。

xml

<com.getbase.floatingactionbutton.FloatingActionsMenu
    android:id="@+id/fam1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">

    <com.getbase.floatingactionbutton.FloatingActionButton
        android:id="@+id/fam1_fab1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@android:drawable/ic_dialog_map"/>

    <com.getbase.floatingactionbutton.AddFloatingActionButton
        android:id="@+id/fam1_afab1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:fab_colorNormal="@color/colorAccent"
        app:fab_colorPressed="@color/colorPrimary"/>

com.getbase.floatingactionbutton.FloatingActionsMenu>

Demo源码

https://git.oschina.net/libraryDemo/FloatingActionButton02

Clans / FloatingActionButton

github ：https://git.oschina.net/libraryDemo/FloatingActionButton02