java - 更改选定状态下的按钮形状？

Question

我有一个 Android 按钮:

<Button
       android:layout_width="wrap_content"
       android:layout_height="44dp"
       android:background="@drawable/action_button" />

action_button.xml 是:

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

    <padding
        android:left="25dp"
        android:right="25dp"/>

    <gradient
        android:angle="0"
        android:endColor="@color/whiteColor"
        android:startColor="@color/whiteColor"/>

    <corners android:radius="@dimen/borderRadius"/>

    <stroke
        android:width="2px"
        android:color="@color/actionColor"/>
</shape>

按下按钮时如何更改形状？

Answer 1

您好，请使用下面的选择器并根据您的需要进行更改

选择器.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
   <!-- <item android:state_enabled="false"
          android:drawable="@drawable/cyan_strip" />
    <item android:state_pressed="true"
          android:drawable="@drawable/cyan_strip" />
    <item android:state_pressed="false" android:state_focused="true"
          android:drawable="@drawable/cyan_strip" />
    <item android:drawable="@drawable/black_strip" /> -->

    <item android:state_enabled="false">
        <shape>
        <solid
            android:color="#4ec9d9" />
        <stroke
            android:width="1dp"
            android:color="#FFFFFF" />
        <padding
            android:left="1dp"
            android:top="1dp"
            android:right="1dp"
            android:bottom="1dp" />
    </shape>
    </item>

    <item android:state_pressed="true">
        <shape>
        <solid
            android:color="#4ec9d9" />
        <stroke
            android:width="1dp"
            android:color="#FFFFFF" />
        <padding
            android:left="1dp"
            android:top="1dp"
            android:right="1dp"
            android:bottom="1dp" />
    </shape>
    </item>

    <item android:state_pressed="false" android:state_focused="true">
        <shape>
        <solid
            android:color="#4ec9d9" />
        <stroke
            android:width="1dp"
            android:color="#FFFFFF" />
        <padding
            android:left="1dp"
            android:top="1dp"
            android:right="1dp"
            android:bottom="1dp" />
    </shape>
    </item>

    <item android:state_selected="true">
        <shape>
        <solid
            android:color="#4ec9d9" />
        <stroke
            android:width="1dp"
            android:color="#FFFFFF" />
        <padding
            android:left="1dp"
            android:top="1dp"
            android:right="1dp"
            android:bottom="1dp" />
    </shape>
    </item>

    <item >
       <shape>
        <solid
            android:color="#000000" />
        <stroke
            android:width="1dp"
            android:color="#FFFFFF" />
        <padding
            android:left="1dp"
            android:top="1dp"
            android:right="1dp"
            android:bottom="1dp" />
    </shape> 
    </item>

</selector>