Android 监听锁屏、解锁、开屏 功能代码

1、首先定义 screenlistener

package com.app.lib;
import android.content.broadcastreceiver;
import android.content.context;
import android.content.intent;
import android.content.intentfilter;
import android.os.powermanager;
/**
* created by ${zyj} on 2016/6/21.
*/
public class screenlistener {
private context mcontext;
private screenbroadcastreceiver mscreenreceiver;
private screenstatelistener mscreenstatelistener;
public screenlistener(context context) {
mcontext = context;
mscreenreceiver = new screenbroadcastreceiver();
}
/**
* screen状态广播接收者
*/
private class screenbroadcastreceiver extends broadcastreceiver {
private string action = null;
@override
public void onreceive(context context, intent intent) {
action = intent.getaction();
if (intent.action_screen_on.equals(action)) { // 开屏
mscreenstatelistener.onscreenon();
} else if (intent.action_screen_off.equals(action)) { // 锁屏
mscreenstatelistener.onscreenoff();
} else if (intent.action_user_present.equals(action)) { // 解锁
mscreenstatelistener.onuserpresent();
}
}
}
/**
* 开始监听screen状态
*
* @param listener
*/
public void begin(screenstatelistener listener) {
mscreenstatelistener = listener;
registerlistener();
getscreenstate();
}
/**
* 获取screen状态
*/
private void getscreenstate() {
powermanager manager = (powermanager) mcontext
.getsystemservice(context.power_service);
if (manager.isscreenon()) {
if (mscreenstatelistener != null) {
mscreenstatelistener.onscreenon();
}
} else {
if (mscreenstatelistener != null) {
mscreenstatelistener.onscreenoff();
}
}
}
/**
* 停止screen状态监听
*/
public void unregisterlistener() {
mcontext.unregisterreceiver(mscreenreceiver);
}
/**
* 启动screen状态广播接收器
*/
private void registerlistener() {
intentfilter filter = new intentfilter();
filter.addaction(intent.action_screen_on);
filter.addaction(intent.action_screen_off);
filter.addaction(intent.action_user_present);
mcontext.registerreceiver(mscreenreceiver, filter);
}
public interface screenstatelistener {// 返回给调用者屏幕状态信息
public void onscreenon();
public void onscreenoff();
public void onuserpresent();
}
}

　2、使用

package com.app.lib;
import android.support.v7.app.appcompatactivity;
import android.os.bundle;
import android.widget.toast;
public class mainactivity extends appcompatactivity {
private screenlistener screenlistener ;
@override
protected void oncreate(bundle savedinstancestate) {
super.oncreate(savedinstancestate);
setcontentview(r.layout.activity_main);
screenlistener = new screenlistener( mainactivity.this ) ;
screenlistener.begin(new screenlistener.screenstatelistener() {
@override
public void onscreenon() {
toast.maketext( mainactivity.this , "屏幕打开了" , toast.length_short ).show();
}
@override
public void onscreenoff() {
toast.maketext( mainactivity.this , "屏幕关闭了" , toast.length_short ).show();
}
@override
public void onuserpresent() {
toast.maketext( mainactivity.this , "解锁了" , toast.length_short ).show();
}
});
}
}

以上所述是小编给大家介绍的android 监听锁屏、解锁、开屏 功能代码的相关知识，希望对大家有所帮助！