Button系列：自定义高亮和置灰效果

Posted 2021-06-28 zhangjin1120

Button布局代码：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <Button
        android:id="@+id/btn_login"
        android:layout_width="270dp"
        android:layout_height="44dp"
        android:background="@drawable/selector_btn_login"
        android:enabled="true"
        android:text="登 录"
        android:textColor="#ffffffff"
        android:textSize="16sp"
        android:layout_centerInParent="true"
      />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="测试"
        android:visibility="visible"
        android:layout_centerHorizontal="true"
        android:layout_below="@id/btn_login"
        android:onClick="changeLoginBtn"
        />

</RelativeLayout>

• 背景selector_btn_login.xml代码：

<?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/shape_login_inactive"/>
    <item android:state_enabled="true" android:drawable="@drawable/shape_login_active"/>
</selector>

• 高亮状态shape_login_active.xml代码：

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="#00391F" />
    <corners android:radius="25dp" />
</shape>

• 置灰状态shape_login_inactive.xml代码：

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
    <solid android:color="#7F9C8F" />
    <corners android:radius="25dp" />
</shape>

• 变色控制：

  btnLogin.setEnabled(!btnLogin.isEnabled());