radiobutton模拟tab点击效果

首先定义选中和非选中状态的背景样式buttonstyle.xml和buttonstayle_checked.xml

buttonstyle.xml

<?xml version="1.0" encoding="UTF-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <!-- 边框颜色值 --><item>
    <shape>
        <solid android:color="#435345" />
    </shape>
</item>
    <!-- 主体背景颜色值 -->
    <item android:bottom="3dp">
        <shape>
            <solid android:color="#ffffff" />
            <padding android:bottom="10dp"
                android:left="10dp"
                android:right="10dp"
                android:top="10dp" />
        </shape>
    </item>
</layer-list>

buttonstayle_checked.xml

<?xml version="1.0" encoding="UTF-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <!-- 边框颜色值 --><item>
    <shape>
        <solid android:color="#1E90FF" />
    </shape>
</item>
    <!-- 主体背景颜色值 -->
    <item android:bottom="6dp">
        <shape>
            <solid android:color="#ffffff" />
            <padding android:bottom="10dp"
                android:left="10dp"
                android:right="10dp"
                android:top="10dp" />
        </shape>
    </item>
</layer-list>

然后是背景选择器

<?xml version="1.0" encoding="utf-8" ?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <!--选中时的图片背景 -->
    <item android:state_checked="true" android:drawable="@drawable/buttonstyle_select" />
    <item android:state_checked="false" android:drawable="@drawable/buttonstyle" />

</selector>

最后是布局文件

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.administrator.myapplication.MainActivity">

    <RadioGroup
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_alignParentTop="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true">
        <RadioButton
            android:id="@+id/radiobnt1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:button="@null"
            android:layout_weight="1"
            android:gravity="center"
            android:text="radio1"
            android:background="@drawable/radiao_bg_selector"
            android:layout_alignParentTop="true"
            android:layout_alignParentLeft="true"
            android:layout_alignParentStart="true" />
        <RadioButton
            android:id="@+id/radiobnt2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:button="@null"
            android:gravity="center"
            android:layout_weight="1"
            android:text="radio2"
            android:background="@drawable/radiao_bg_selector"
            android:layout_alignParentTop="true"
            android:layout_alignParentLeft="true"
            android:layout_alignParentStart="true" />

    </RadioGroup>
</RelativeLayout>

逻辑代码就不写了，看下效果：