Notification系统提示信息

﹏ヽ暗。殇╰゛Y 2022-09-11 00:17 178阅读 0赞

提示信息还是很方便的，直接上代码，下列代码是在Fragment中执行的，其中的this都被getActivity()代替了。

//发送提示信息
        private void sendNotify()
        {
            NotificationManager notificationManager = (NotificationManager) getActivity().getSystemService(Context.NOTIFICATION_SERVICE);
    
            Intent intent = new Intent(getActivity(), MainActivity.class);
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
            PendingIntent pendingIntent = PendingIntent.getActivity(getActivity(), 0, intent, 0);
    
            String channelId = createNotificationChannel("my_channel_ID", "my_channel_NAME", NotificationManager.IMPORTANCE_HIGH);
            NotificationCompat.Builder notification = new NotificationCompat.Builder(getActivity(), channelId)
                    .setContentTitle("通知")
                    .setContentText("你好，世界!")
                    .setContentIntent(pendingIntent)
                    .setSmallIcon(R.mipmap.ic_launcher)
                    .setAutoCancel(true)
                    .setWhen(System.currentTimeMillis());
    
            notificationManager.notify(16657, notification.build());
        }
        //获取通道ID
        private String createNotificationChannel(String channelID, String channelNAME, int level) {
            if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
                NotificationManager manager = (NotificationManager) getActivity().getSystemService(Context.NOTIFICATION_SERVICE);
                NotificationChannel channel = new NotificationChannel(channelID, channelNAME, level);
                manager.createNotificationChannel(channel);
                return channelID;
            } else { return null;}
        }

模拟器上没有问题，实际手机可能需要权限