index.uts

import Activity from 'android.app.Activity';
import BroadcastReceiver from 'android.content.BroadcastReceiver';
import Notification from 'android.app.Notification';
import Bundle from 'android.os.Bundle';
import R from 'io.dcloud.uni_modules.uts_nativepage.R';
import Intent from 'android.content.Intent';
import IntentFilter from 'android.content.IntentFilter';
import NotificationCompat from 'androidx.core.app.NotificationCompat';
import NotificationManager from 'android.app.NotificationManager';
import NotificationChannel from 'android.app.NotificationChannel';
import Context from 'android.content.Context';
import Button from 'android.widget.Button';
import OnClickListener from 'android.view.View.OnClickListener';
import View from 'android.view.View';
import Build from 'android.os.Build';
import IBinder from 'android.os.IBinder';
import Toast from 'android.widget.Toast';

import {
	getUniActivity,
	getAppContext
} from "io.dcloud.uts.android";

import Service from 'android.app.Service';
import System from 'java.lang.System';



class ForeService extends Service {



	constructor (){
		super();
	}

    override onCreate():void {
        super.onCreate();
		console.log("onCreate");
    }
	

	override onBind(_intent?: Intent): IBinder|null{
		return null;
    }
	
    override onStartCommand(intent:Intent ,flags:Int ,startId:Int ):Int {

        let mBuilder = new NotificationCompat.Builder(this,"uts-test");
		
		// 点击后让通知将消失
		mBuilder.setAutoCancel(true) 
	    mBuilder.setContentText("测试")
	    mBuilder.setContentTitle("测试")
		//通知产生的时间，会在通知信息里显示
	    mBuilder.setWhen(System.currentTimeMillis()) 
	    //设置该通知优先级
	    mBuilder.setPriority(NotificationManager.IMPORTANCE_DEFAULT) 
		//ture，设置他为一个正在进行的通知。他们通常是用来表示一个后台任务,用户积极参与(如播放音乐)或以某种方式正在等待,因此占用设备(如一个文件下载,同步操作,主动网络连接)
	    mBuilder.setOngoing(false) 
		//向通知添加声音、闪灯和振动效果的最简单、最一致的方式是使用当前的用户默认设置，使用defaults属性，可以组合：
	    mBuilder.setDefaults(Notification.DEFAULT_ALL) 
	          
			   
	   	if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
	          
			let manager =
				getAppContext()!.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
			let channelId = "channelId" + System.currentTimeMillis()
			let channel = new NotificationChannel(
				channelId,
				"appName",
				NotificationManager.IMPORTANCE_HIGH
			)
			manager.createNotificationChannel(channel)
			mBuilder.setChannelId(channelId)
		}
	   				
	    mBuilder.setContentIntent(null)
	    this.startForeground(102, mBuilder.build())

        return super.onStartCommand(intent, flags, startId);
    }

    override onDestroy():void {
        super.onDestroy();
        this.stopForeground(true);// 停止前台服务--参数：表示是否移除之前的通知
    }


}



class ScreenReceiver extends BroadcastReceiver{
	
	constructor (){
		super();
	}
	
   override onReceive(_context: Context, intent: Intent):void {
        if (Intent.ACTION_SCREEN_OFF == intent.action) {
            console.log("==屏幕休眠了")
        }
        if (Intent.ACTION_SCREEN_ON == intent.action) {
            console.log("==屏幕唤醒了")
        }
    }
}


class StartServiceListener extends OnClickListener{
	
    override onClick(v?: View):void{
		
		var intent = new Intent(getUniActivity(), ForeService().javaClass);
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
			getAppContext()!.startForegroundService(intent);
		}
		else{
			getAppContext()!.startService(intent);
		}

    }
}


class StartBroadcastListener extends OnClickListener{
	
    override onClick(v?: View):void{
		
		let myReceiver = new ScreenReceiver();
		let filter = new IntentFilter();
		filter.addAction(Intent.ACTION_SCREEN_OFF);
		filter.addAction(Intent.ACTION_SCREEN_ON);
		getUniActivity()!.registerReceiver(myReceiver, filter);
		
		// 提示屏幕状态监听已经注册
		Toast.makeText(getAppContext(),"屏幕状态监听已注册，注意观察控制台日志",Toast.LENGTH_LONG).show();
		
    }
}




class DemoActivity  extends Activity{
	
	constructor (){
		super();
	}
	
	override onCreate(savedInstanceState?: Bundle):void {
		super.onCreate(savedInstanceState)
		this.setContentView(R.layout.demo_activity);
		
		 let btn_start_service_front = findViewById<Button>(R.id.btn_start_service_front);
		 btn_start_service_front.setOnClickListener(new StartServiceListener());
		 
		 let btn_start_screen_listen = findViewById<Button>(R.id.btn_start_screen_listen);
		 btn_start_screen_listen.setOnClickListener(new StartBroadcastListener());
		 
	}
	
}


export default function gotoDemoActivity() {
  // 跳转到一个新的界面
  let intent = new Intent(getUniActivity(),DemoActivity().javaClass);
  getUniActivity()!.startActivity(intent);
  
  // var a = new DemoActivity();
  return { name: "gotoDemoActivity"};
}