android RadioButton单选按钮效果

activity_main.xml
<RadioGroup
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:orientation="horizontal"
  android:layout_gravity="center_horizontal">
  <RadioButton
    android:id="@+id/xiaoxi"
    android:layout_weight="1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="消息"
    android:button="@null"
    android:textSize="20sp"
    android:gravity="center"
    android:checked="true"
    android:drawableTop="@drawable/selector_bar_1"/>
  <RadioButton
    android:id="@+id/lianxiren"
    android:layout_weight="1"
    android:button="@null"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="联系人"
    android:gravity="center"
    android:drawableTop="@drawable/selector_bar_2"
    android:textSize="20sp"/>
  <RadioButton
    android:id="@+id/dongtai"
    android:layout_weight="1"
    android:button="@null"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textSize="20sp"
    android:gravity="center"
    android:drawableTop="@drawable/selector_bar_3"
    android:text="动态"/>
</RadioGroup>
---------------------------在drawable下新建文件----------------------
1.selector_bar_1.xml
  <?xml version="1.0" encoding="utf-8"?>
  <selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@mipmap/bar_1_select" android:state_checked="true"/>
    <item android:drawable="@mipmap/bar_1_unselect" android:state_checked="false"/>
  </selector>
2.selector_bar_1.xml
  <?xml version="1.0" encoding="utf-8"?>
   <selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@mipmap/bar_2_selector" android:state_checked="true"/>
    <item android:drawable="@mipmap/bar_2_unselector" android:state_checked="false"/>
  </selector>
3.selector_bar_1.xml
  <?xml version="1.0" encoding="utf-8"?>
   <selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@mipmap/bar_3_select" android:state_checked="true"/>
    <item android:drawable="@mipmap/bar_3_unselect" android:state_checked="false"/>
  </selector>
 
素材:
效果:
 
posted @ 2016-11-17 11:35  疯子~  阅读(17333)  评论(1编辑  收藏  举报