可以使用以下方法来请求通知权限并检查其状态:
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) { int importance = NotificationManager.IMPORTANCE_DEFAULT; NotificationChannel channel = new NotificationChannel("channelId", "channelName", importance); channel.setDescription("channelDescription"); NotificationManager notificationManager = getSystemService(NotificationManager.class); notificationManager.createNotificationChannel(channel); }
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) { // 判断用户是否已经授予通知权限 NotificationManager manager = getSystemService(NotificationManager.class); boolean isAllowed = manager.areNotificationsEnabled(); if (!isAllowed) { // 没有权限,弹出授权框 Intent intent = new Intent(); intent.setAction(Settings.ACTION_APP_NOTIFICATION_SETTINGS); intent.putExtra(Settings.EXTRA_APP_PACKAGE, getPackageName()); intent.putExtra(Settings.EXTRA_CHANNEL_ID, "channelId"); startActivity(intent); return; } }
@Override public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); // 检测用户是否已经授予通知权限 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) { NotificationManager manager = getSystemService(NotificationManager.class); boolean isAllowed = manager.areNotificationsEnabled(); if (isAllowed) { // 已经授权 // 执行其他操作 } else { // 仍然没有授权 // 给出提示信息 Toast.makeText(this, "未授权无法收到通知!", Toast.LENGTH_LONG).show(); } } }
使用以上方法,可以请求和检测通知权限状态。如果用户没有授权,会弹出授权框,如果用户已经授权,则可以执行其他操作,否则会给出提示信息。