android service开启前台通知

r囧r小猫 2024-04-17 06:38 77阅读 0赞

最近需要保活一个service，有个不那么靠谱的方法，就是把这个service和前台通知绑定在一起，这里做个记录，方便以后用到。

import android.app.Notification;
    import android.app.NotificationChannel;
    import android.app.NotificationManager;
    import android.app.Service;
    import android.content.Context;
    import android.os.Build;
    
    import androidx.annotation.RequiresApi;
    
    public final class NotificationUtil {
        private static final String CHANNEL_ONE_ID = "myapp_name"; //唯一性
        private static final int NOTIFY_ID = 0x111;
        private static final int FOREGROUND_ID = 0x112;
    
        /**
         * 公开使用
         */
        @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
        public static void sendNotification(Context context, String channelName, String channelDesc, String contentTitle, String contentText) {
            NotificationManager manager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                manager.notify(NOTIFY_ID, getNotificationO(context, manager, channelName, channelDesc, contentTitle, contentText));
            } else {
                manager.notify(NOTIFY_ID, getNotification(context, contentTitle, contentText));
            }
        }
    
        /**
         * onStartCommand调用
         */
        @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
        public static void startForeground(Service service, String channelName, String channelDesc, String contentTitle, String contentText) {
            NotificationManager manager = (NotificationManager) service.getSystemService(Context.NOTIFICATION_SERVICE);
            Notification notification;
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                notification = getNotificationO(service, manager, channelName, channelDesc, contentTitle, contentText);
            } else {
                notification = getNotification(service, contentTitle, contentText);
            }
            notification.flags = Notification.FLAG_ONGOING_EVENT;
            notification.flags |= Notification.FLAG_NO_CLEAR;
            notification.flags |= Notification.FLAG_FOREGROUND_SERVICE;
            service.startForeground(FOREGROUND_ID, notification);
        }
    
        /**
         * onDestory之前调用
         */
        public static void stopForegound(Service service) {
            service.stopForeground(true);
        }
    
        @RequiresApi(api = Build.VERSION_CODES.O)
        private static Notification getNotificationO(Context context, NotificationManager manager, String name, String desc, String contentTitle, String contentText) {
            Notification.Builder builder;
            NotificationChannel channel = new NotificationChannel(CHANNEL_ONE_ID, name,
                    NotificationManager.IMPORTANCE_DEFAULT);
            channel.setDescription(desc);
    
            //channel.enableLights(true);
            //channel.setLightColor(color);
    
            //Uri mUri = Settings.System.DEFAULT_NOTIFICATION_URI;
            //channel.setSound(mUri, Notification.AUDIO_ATTRIBUTES_DEFAULT);
    
            // Register the channel with system; you can't change the importance
            // or other notification behaviors after this
            manager.createNotificationChannel(channel);
            builder = new Notification.Builder(context, CHANNEL_ONE_ID);
            builder.setCategory(Notification.CATEGORY_RECOMMENDATION)
                    .setContentTitle(contentTitle)
                    .setContentText(contentText)
                    //.setContentIntent(getPendingIntent(context))
                    .setSmallIcon(android.R.drawable.ic_notification_overlay); //todo
    
            return builder.build();
        }
    
        @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
        private static Notification getNotification(Context context, String contentTitle, String contentText) {
            Notification.Builder builder = new Notification.Builder(context)
                    .setPriority(Notification.PRIORITY_DEFAULT)
                    //.setLights(color, 1000, 0)
                    //.setSound(null, null);
                    ;
    
            builder.setCategory(Notification.CATEGORY_RECOMMENDATION)
                    .setContentTitle(contentTitle)
                    .setContentText(contentText)
                    //.setContentIntent(getPendingIntent(context))
                    .setSmallIcon(android.R.drawable.ic_notification_overlay); //todo
    
            return builder.build();
        }
    
    //    private static PendingIntent getPendingIntent(Context context) {
    //        Intent intent = new Intent(context, MainActivity.class);
    //        intent.addFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT);
    //        PendingIntent pi = PendingIntent.getActivity(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
    //        return pi;
    //    }
    
    }