检查是否有使用操作字符串注册的BroadCastReceiver

Question

所以我需要一种方法来确定是否有针对特定操作字符串注册的broadCastReceiver.

因此,为了检查意图是否可用,我们有方法(来自 http://www.vogella.com/articles/AndroidIntent/article.html)

public boolean isIntentAvailable(Context context, String action) {
    final PackageManager packageManager = context.getPackageManager();
    final Intent intent = new Intent(action);
    List<ResolveInfo> resolveInfo =
            packageManager.queryIntentActivities(intent,
                    PackageManager.MATCH_DEFAULT_ONLY);
   if (resolveInfo.size() > 0) {
        return true;
    }
   return false;
}

哪个有效,但从我的测试中看起来只是注册活动的意图.我有一个broadCastReceiver注册了特定的操作字符串.它从未将其视为已注册.但如果我发射广播.广播反应.因此,在这种情况下,方法不起作用.

想法？

Answer 1

对于您应该拨打的广播接收器来说几乎是一样的PackageManager#queryBroadcastReceivers.

public abstract List<ResolveInfo> queryBroadcastReceivers (Intent intent, int flags)

Since: API Level 1
Retrieve all receivers that can handle a broadcast of the given intent.

Parameters
intent  The desired intent as per resolveActivity().
flags   Additional option flags.

Returns
A List<ResolveInfo> containing one entry for each matching Receiver. These are ordered from first to last in priority. If there are no matching receivers, an empty list is returned.

看看文档,看看还能得到什么.