Is there any way to query an specific type of Inte

2019-02-02 04:59发布

问题:

I'm looking for a way to search in the device all the apps which are capable to filter Intents with action "VIEW" and category "BROWSABLE"?

I found the following links and learned how to list all Intent Filters, but how can I list only those having only the aforementioned parameters?

http://developer.android.com/reference/android/content/pm/PackageManager.html#queryIntentActivities%28android.content.Intent,%20int%29

Get intent filter for receivers

How to filter specific apps for ACTION_SEND intent (and set a different text for each app)

Thanks in advance

回答1:

This code should do more or less what you want. The main problem is that I don't think you will find any activity that filters for CATEGORY_BROWSABLE without also requiring data of a specific type. I tried it on my phone and I didn't get anything useful until I added the setData() call on the Intent.

    PackageManager manager = getPackageManager();
    Intent intent = new Intent();
    intent.setAction(Intent.ACTION_VIEW);
    intent.addCategory(Intent.CATEGORY_BROWSABLE);
    // NOTE: Provide some data to help the Intent resolver
    intent.setData(Uri.parse("http://www.google.com"));
    // Query for all activities that match my filter and request that the filter used
    //  to match is returned in the ResolveInfo
    List<ResolveInfo> infos = manager.queryIntentActivities (intent,
                                   PackageManager.GET_RESOLVED_FILTER);
    for (ResolveInfo info : infos) {
        ActivityInfo activityInfo = info.activityInfo;
        IntentFilter filter = info.filter;
        if (filter != null && filter.hasAction(Intent.ACTION_VIEW) &&
                  filter.hasCategory(Intent.CATEGORY_BROWSABLE)) {
            // This activity resolves my Intent with the filter I'm looking for
            String activityPackageName = activityInfo.packageName;
            String activityName = activityInfo.name;
            System.out.println("Activity "+activityPackageName + "/" + activityName);
        }
    }
}