Android开发 通知

查询权限

    /**
     * 检查通知权限
     */
    private fun checkNotifyPermissionStatus() {
        context?.let { context ->
            val manager = NotificationManagerCompat.from(context)
            // areNotificationsEnabled方法的有效性官方只最低支持到API 19，低于19的仍可调用此方法不过只会返回true，即默认为用户已经开启了通知。
            val isOpened = manager.areNotificationsEnabled()
            if (!isOpened) {
                mBinding.permissionTips.visibility = View.VISIBLE
                mBinding.goOpenPermission.visibility = View.VISIBLE
            } else {
                mBinding.permissionTips.visibility = View.GONE
                mBinding.goOpenPermission.visibility = View.GONE
            }
        }
    }

引导用户授权

    /**
     * 跳转到允许通知界面
     */
    private void jumpNoticeInterface() {
        Intent localIntent = new Intent();
        localIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        if (Build.VERSION.SDK_INT >= 9) {
            localIntent.setAction("android.settings.APPLICATION_DETAILS_SETTINGS");
            localIntent.setData(Uri.fromParts("package", getContext().getPackageName(), null));
        } else if (Build.VERSION.SDK_INT <= 8) {
            localIntent.setAction(Intent.ACTION_VIEW);
            localIntent.setClassName("com.android.settings", "com.android.settings.InstalledAppDetails");
            localIntent.putExtra("com.android.settings.ApplicationPkgName", getContext().getPackageName());
        }
        startActivity(localIntent);
    }

创建通知

            context?.let { context ->
                val manager = context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                    val channel = NotificationChannel("nomal", "Nomal", NotificationManager.IMPORTANCE_DEFAULT)
                    manager.createNotificationChannel(channel)
                }
                val notification = NotificationCompat.Builder(context, "nomal")
                    .setContentTitle("this is title")
                    .setContentText("content")
                    .setSmallIcon(R.mipmap.sym_def_app_icon)
                    .build()
                manager.notify(1, notification)
            }

携带PendingIntent的通知

 val manager= getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
        if (Build.VERSION.SDK_INT>= Build.VERSION_CODES.O){
            val channel= NotificationChannel("nomal","Nomal", NotificationManager.IMPORTANCE_DEFAULT)
            manager.createNotificationChannel(channel)
        }
        sendAotice.setOnClickListener {
            val intent=Intent(this,NoticeActivity::class.java)
            val pi=PendingIntent.getActivity(this,0,intent,0)
            val notification=NotificationCompat.Builder(this,"nomal")
                .setContentTitle("this is title")
                .setContentText("this is content")
                .setSmallIcon(R.mipmap.ic_launcher)
                .setContentIntent(pi)
                .build()

            manager.notify(1,notification)
        }

 

 

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