自定义开关按钮

attrs.xml
<declare-styleable name="EaseSwitchButton">
    <attr name="switchOpenImage" format="reference"/>
    <attr name="switchCloseImage" format="reference"/>
    <attr name="switchStatus">
        <enum name="open" value="0"/>
        <enum name="close" value="1"/>
    </attr>
</declare-styleable>

EaseSwitchButton.java

package com.easemob.easeui.widget;

import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.FrameLayout;
import android.widget.ImageView;

import com.easemob.easeui.R;

public class EaseSwitchButton extends FrameLayout{

    private ImageView openImage;
    private ImageView closeImage;

    public EaseSwitchButton(Context context, AttributeSet attrs, int defStyle) {
        this(context, attrs);
    }

    public EaseSwitchButton(Context context) {
        this(context, null);
    }
    
    public EaseSwitchButton(Context context, AttributeSet attrs) {
        super(context, attrs);
        
        TypedArray ta = context.obtainStyledAttributes(attrs, R.styleable.EaseSwitchButton);
        Drawable openDrawable = ta.getDrawable(R.styleable.EaseSwitchButton_switchOpenImage);
        Drawable closeDrawable = ta.getDrawable(R.styleable.EaseSwitchButton_switchCloseImage);
        int switchStatus = ta.getInt(R.styleable.EaseSwitchButton_switchStatus, 0);
        ta.recycle();
        
        LayoutInflater.from(context).inflate(R.layout.ease_widget_switch_button, this);
        openImage = (ImageView) findViewById(R.id.iv_switch_open);
        closeImage = (ImageView) findViewById(R.id.iv_switch_close);
        if(openDrawable != null){
            openImage.setImageDrawable(openDrawable);
        }
        if(closeDrawable != null){
            closeImage.setImageDrawable(closeDrawable);
        }
        if(switchStatus == 1){
            closeSwitch();
        }
        
    }
    
    /**
     * 开关是否为打开状态
     */
    public boolean isSwitchOpen(){
        return openImage.getVisibility() == View.VISIBLE;
    }
    
    /**
     * 打开开关
     */
    public void openSwitch(){
       openImage.setVisibility(View.VISIBLE);
       closeImage.setVisibility(View.INVISIBLE);
    }
    
    /**
     * 关闭开关
     */
    public void closeSwitch(){
       openImage.setVisibility(View.INVISIBLE);
       closeImage.setVisibility(View.VISIBLE);
    }
}

ease_widget_switch_button.xml

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

    <ImageView
        android:id="@+id/iv_switch_open"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@drawable/ease_open_icon"
        android:visibility="visible" />

    <ImageView
        android:id="@+id/iv_switch_close"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@drawable/ease_close_icon"
        android:visibility="invisible" />

</FrameLayout>

引用：

<com.easemob.easeui.widget.EaseSwitchButton
    android:id="@+id/switch_notification"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentRight="true"
    android:layout_centerVertical="true" />

notifiSwitch.closeSwitch();

notifiSwitch.openSwich();

注：此源码摘自环信