1.权限：
<uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
2.service代码:
import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Intent;
import android.os.Binder;
import android.os.Build;
import android.os.IBinder;
import android.util.Log;
import android.view.View;
import android.widget.RemoteViews;
import androidx.annotation.Nullable;
import androidx.core.app.NotificationCompat;
import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;
/**
* 别忘记询问用户开发锁屏时显示权限
* <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
*/
public class ChargeService extends Service {
private int NOTIFICATION_ID=100;
@Override
public void onCreate() {
super.onCreate();
//startForeground(200,getNotification("xxx","sss","111"));
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
startForeground(NOTIFICATION_ID,getNotification("111"));
//return START_STICKY;
return super.onStartCommand(intent, flags, startId);
}
@Nullable
@Override
public IBinder onBind(Intent intent) {
return new Binder();
}
@Override
public void onRebind(Intent intent) {
super.onRebind(intent);
}
@Override
public void onDestroy() {
super.onDestroy();
stopForeground(true);
}
private NotificationCompat.Builder builder;
private Notification getNotification(String channel_id) {
NotificationManager mNotificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
//创建一个跳转到活动页面的意图
Intent clickIntent = new Intent(this, ChargingActivity.class);
clickIntent.putExtra("connectorId", ChargingPileManager.INSTANCE.getChargingOrder().getConnectorId());
clickIntent.putExtra("operatorId", ChargingPileManager.INSTANCE.getChargingOrder().getOperatorId());
clickIntent.putExtra("qrCode", "3");
clickIntent.putExtra("shoppingId", ChargingPileManager.INSTANCE.getChargingOrder().getShoppingId());
clickIntent.putExtra("startChargeSeq", ChargingPileManager.INSTANCE.getChargingOrder().getStartChargeSeq());
clickIntent.putExtra("chargingStates", ChargingPileManager.INSTANCE.getChargingOrder().getChargeStatus().toString());
//clickIntent.putExtra("flag", count);
//创建一个用于页面跳转的延迟意图A
PendingIntent contentIntent = PendingIntent.getActivity(this, 100, clickIntent
, PendingIntent.FLAG_UPDATE_CURRENT);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
// //Android8.0开始必须给每个通知分配对应的渠道
// builder = new Notification.Builder(this, channel_id);
//充电提示和充电进度两个文字串在系统中app通知设置页可以看到 IMPORTANCE_HIGH
NotificationChannel channel=new NotificationChannel(channel_id,"充电提示",NotificationManager.IMPORTANCE_DEFAULT);
channel.setLockscreenVisibility(Notification.VISIBILITY_PUBLIC);// 所有情况下显示，包括锁屏
channel.setDescription("充电进度");
mNotificationManager.createNotificationChannel(channel);
}
//创建一个通知消息的构造器
builder = new NotificationCompat.Builder(this,channel_id);
//需要用RemoteViews才能实现自定义通知ui，注意RemoteViews的第二个参数布局根布局不能为ConstraintLayout
RemoteViews remoteView =new RemoteViews(getPackageName(), R.layout.notify_charge);
if (ChargingPileManager.INSTANCE.getChargingOrder().getConnectorType()==3){
remoteView.setViewVisibility(R.id.ll_progress, View.GONE);
}else {
remoteView.setViewVisibility(R.id.ll_progress, View.VISIBLE);
}
remoteView.setTextViewText(R.id.tv_title, "正在充电中…");
// remoteView.setTextViewText(R.id.tv_time, "预计充满还需--分钟");
remoteView.setTextViewText(R.id.tv_percent, ChargingPileManager.INSTANCE.getChargingOrder().getSoc()+"");
builder
.setSmallIcon(R.mipmap.lynkco_ic_launcher)//设置状态栏里的小图标
.setStyle(new NotificationCompat.DecoratedCustomViewStyle())
// .setCustomBigContentView(remoteView)
.setCustomContentView(remoteView)
//.setTicker("提示消息来啦")//设置状态栏里面的提示文本
//.setWhen(System.currentTimeMillis())//设置推送时间，格式为"小时：分钟"
.setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
.setContentIntent(contentIntent)//设置内容的点击意图
.setAutoCancel(true)//设置是否允许自动清除
.setPriority(NotificationCompat.PRIORITY_DEFAULT)// 设置该通知优先级
//.setOngoing(true)
// .setContent(remoteView)
//.setColor(Color.RED)//没效果
//.setLargeIcon(BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher))//设置通知栏里面的大图标
//.setContentTitle(title)//设置通知栏里面的标题文本
// .setContentText("充电")//设置通知栏里面的内容文本
;
WebSocketClient.getInstance().setScreenLockWebSocketCallback(new ScreenLockWebSocketCallback() {
@Override
public void callback(String msg, String msgType, Gson gson) {
Log.e("cwp","service msg: "+msg +" msgType:"+msgType);
if (msgType.equals(MsgType.P_CHARGE_STATUS.name())){//充电中...
WebSocketResult<ChargeStatusBean> result= gson.fromJson(msg,new TypeToken<WebSocketResult<ChargeStatusBean>>() {}.getType());
if (result.getData()!=null){
//充电未完成时的显示
remoteView.setTextViewText(R.id.tv_title, "正在充电中…");
// String[] time= Utils.getLengthOfTime(result.getData().getEndTime(),result.getData().getStartTime());
// remoteView.setTextViewText(R.id.tv_time, "已充时长"+time[0]+"小时"+time[1]+"分钟");
int progress=result.getData().getSoc().intValue();
remoteView.setTextViewText(R.id.tv_percent, progress+"");
}
startForeground(NOTIFICATION_ID,builder.build());
}
// else if (msgType.equals(MsgType.P_CHARGE_ORDER_INFO.name())){
// stopForeground(true);
// }
}
@Override
public void fail(int code, String msg) {
}
});
//根据消息构造器创建一个通知对象
// if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
// Notification notify = builder.build();
// //mNotificationManager.notify(200, notify);
// notify.flags = Notification.FLAG_ONGOING_EVENT;
// return notify;
// }
return builder.build();
}
}
3.注册service
<service android:name=".ChargeService"/>
4.调用
private lateinit var chargeIntent:Intent
findViewById<View>(R.id.tv_start_stake).setOnClickListener {
chargeIntent=Intent(this, ChargeService::class.java)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
startForegroundService(chargeIntent)
} else {
startService(chargeIntent)
}
}
override fun onDestroy() {
super.onDestroy()
stopService(chargeIntent)
}
5.RemoteViews的布局
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="@dimen/dp_86"
android:orientation="horizontal">
<!--在小米上自己定义的背景和圆角无效果-->
<!-- android:background="@drawable/bg_222222_round_12"-->
<RelativeLayout
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="match_parent">
<ImageView
android:id="@+id/iv"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop"
android:src="@mipmap/img_car_charging"/>
<TextView
android:id="@+id/tv_percent"
android:layout_centerVertical="true"
android:layout_marginStart="@dimen/dp_60"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="@color/white"
android:textSize="@dimen/sp_18"
android:text="75%"/>
</RelativeLayout>
<RelativeLayout
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="match_parent"
android:paddingVertical="@dimen/dp_10"
android:orientation="vertical">
<TextView
android:id="@+id/tv_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="@color/black"
android:textSize="@dimen/sp_16"
android:text="正在充电中…"/>
<TextView
android:id="@+id/tv_time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:textColor="@color/color_808080"
android:textSize="@dimen/sp_14"
android:text="预计充满还需25分钟"/>
</RelativeLayout>
</LinearLayout>
6.效果图
Screenshot_2022-10-28-10-27-31-617_lockscreen.jpg
