android中shape 的使用

android 开发中对于 shape 和 selector的使用,一直都不是很熟练, 记录一下.便于以后参考.

举个项目中例子图

对于上面的2个radiobutton ,背景我们可以让美工做一个.9图来实现. 但是最后还是自己用shape 搞一下.

按钮布局如下:

<LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="@dimen/space_8"
        android:orientation="horizontal">

        <RadioGroup
            android:id="@+id/order_rg"
            android:layout_width="match_parent"
            android:layout_height="40dp"
            android:layout_marginLeft="@dimen/space_8"
            android:layout_marginRight="@dimen/space_8"
            android:orientation="horizontal">
　　　　　　　//默认选中
            <RadioButton
                android:id="@+id/rb_left"
                android:layout_width="match_parent"
                android:layout_height="35dp"
                android:layout_weight="1"
                android:background="@drawable/fg_order_rb_selector"
                android:button="@android:color/transparent"
                android:checked="true"
                android:drawablePadding="@dimen/space_4"
                android:gravity="center"
                android:text="投资记录"
                android:textColor="@drawable/fg_order_text_selector"
                android:textSize="@dimen/txt_14" />
　　　　　　　//默认不选中
            <RadioButton
                android:id="@+id/rb_right"
                android:layout_width="match_parent"
                android:layout_height="35dp"
                android:layout_weight="1"
                android:background="@drawable/fg_order_rb_selector1"
                android:button="@null"
                android:drawablePadding="@dimen/space_4"

                android:text="提现记录"
                android:gravity="center"
                android:textColor="@drawable/fg_order_text_selector"
                android:textSize="@dimen/txt_14" />
        </RadioGroup>
    </LinearLayout>

里面用到2个 selector , 1个是文字背景选择器fg_order_text_selector,1个RadioButton颜色背景选择器fg_order_rb_selector1

2个RadioButton用到的文字选择器如下:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:color="@color/white" android:state_checked="true"/> //白色
    <item android:color="@color/black" android:state_checked="false"/>//黑色
</selector>

第一个RadioButton用到的颜色背景选择器 :fg_order_rb_selector.xml , rb_left.xml , rb_right.xml 如下:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item
        android:drawable="@drawable/rb_left"
        android:state_checked="true"
        android:state_enabled="true"
        />

    <item
        android:drawable="@drawable/rb_right"
        android:state_checked="false"
        android:state_enabled="false"/>
</selector>

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <!-- 圆角 -->
    <corners android:bottomLeftRadius="6dp" android:topLeftRadius="6dp" />
    <stroke  android:color="@color/wave_bg" android:width="1dp" />
    <!--内部填充色-->
    <solid android:color="@color/wave_bg" />
</shape>

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <!-- 圆角 -->
    <corners android:bottomLeftRadius="6dp" android:topLeftRadius="6dp" />

    <stroke  android:color="@color/wave_bg" android:width="1dp" />
    <!--内部填充色-->
    <solid android:color="@color/white"/>
</shape>

第二个RadioButton用到的颜色背景选择器 :fg_order_rb_selector1.xml , rb_left1.xml , rb_right1.xml 如下:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item
        android:drawable="@drawable/rb_left1"
        android:state_checked="true"
        android:state_enabled="true"
        />

    <item
        android:drawable="@drawable/rb_right1"
        android:state_checked="false"
        android:state_enabled="false"/>
</selector>

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <!-- 圆角 -->
    <corners android:bottomRightRadius="6dp" android:topRightRadius="6dp" />

    <stroke  android:color="@color/wave_bg" android:width="1dp" />
    <!--内部填充色-->
    <solid android:color="@color/wave_bg" />
</shape>

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <!-- 圆角 -->
    <corners android:bottomRightRadius="6dp" android:topRightRadius="6dp" />

    <stroke  android:color="@color/wave_bg" android:width="1dp" />
    <!--内部填充色-->
    <solid android:color="@color/white"/>
</shape>