android radiogroup样式（设置切换背景与文字颜色）

 main.xml

<RadioGroup
                android:id="@+id/radioGroup1"
                android:layout_width="wrap_content"
                android:layout_height="36dp"
                android:layout_gravity="center"
                android:layout_weight="1"
                android:orientation="horizontal" >

                <RadioButton
                    android:id="@+id/radio0"
                    android:layout_width="0dp"//设0才可以与radio1平分宽度
                    android:layout_height="wrap_content"
                    android:layout_weight="1"
                    android:background="@drawable/radio_check"
                    android:button="@null"
                    android:checked="true"
                    android:gravity="center"
                    android:text="@string/title"
                    android:textColor="@drawable/radio_text_check" />

                <RadioButton
                    android:id="@+id/radio1"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_weight="1"
                    android:background="@drawable/radio_check"
                    android:button="@null"
                    android:gravity="center"
                    android:text="@string/title2"
                    android:textColor="@drawable/radio_text_check" />

            </RadioGroup>

radio_text_check.xml

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

    <item android:state_checked="true" android:color="@android:color/white"/>
    <item android:state_checked="false" android:color="@android:color/holo_blue_bright"/>

</selector>

radio_check.xml

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

    <item android:drawable="@drawable/image1" android:state_checked="true"/>
    <item android:drawable="@drawable/image2" android:state_checked="false"/>

</selector>