您好我想所有的我一直在使用Google的时间最长的用户设备上安装的应用程序的列表，但无法找到我想要的这个链接是最接近的，但并工作正常，只是我是新唐'吨了解如何使用该方法getPackages（）;并创建一个列表，它

Hi I want to get a list of all of the installed applications on the users device I have been googling for the longest time but can't find what i want this link was the closest though and works fine except me being new don't understand how to use the method getPackages(); and create a list with it

http://www.androidsnippets.com/get-installed-applications-with-name-package-name-version-and-icon

如何创建实际的名单将是一个重要的帮助，我有所有code已经在就不能得到列表以实际显示任何帮助的感谢任何帮助

Any help on how to create the actual list would be a major help i have all that code already in just can't get the list to actually show thanks for any help

推荐答案

我在做这样的事情最近。有一件事我会说前面是要确保在一个单独的线程执行此 - 查询申请信息是缓慢的。下面将让你的所有已安装的应用程序列表。这将包括大量的系统应用程序，你可能不感兴趣的。

I was working on something like this recently. One thing I'll say up front is to be sure and perform this in a separate thread -- querying the application information is SLOW. The following will get you a list of ALL the installed applications. This will include a lot of system apps that you probably aren't interested in.

PackageManager pm = getPackageManager();
List<ApplicationInfo> apps = pm.getInstalledApplications(0);

要限制它只是在用户安装或更新系统中的应用程序（如地图，Gmail等），我用下面的逻辑：

To limit it to just the user-installed or updated system apps (e.g. Maps, GMail, etc), I used the following logic:

List<ApplicationInfo> installedApps = new ArrayList<ApplicationInfo>();

for(ApplicationInfo app : apps) {
    //checks for flags; if flagged, check if updated system app
    if((app.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) == 1) {
        installedApps.add(app);
    //it's a system app, not interested
    } else if ((app.flags & ApplicationInfo.FLAG_SYSTEM) == 1) {
        //Discard this one
    //in this case, it should be a user-installed app
    } else {
        installedApps.add(app);
    }
}

编辑：另外，得到的名称和图标的应用程序（这可能是什么花费的时间最长 - 我没有做它任何真正的深度检测 - 使用：

Also, to get the name and icon for the app (which is probably what takes the longest -- I haven't done any real deep inspection on it -- use this:

String label = (String)pm.getApplicationLabel(app);
Drawable icon = pm.getApplicationIcon(app);

installedApps应该有你需要的应用程序的完整列表，现在。希望这会有所帮助，但你可能需要修改一些，具体取决于你需要已经返回哪些应用程序的逻辑。再次，它是缓慢的，但它只是你必须解决。你可能想建立一个数据缓存在一个数据库中，如果它的东西，你会被频繁访问。

installedApps should have a full list of the apps you need, now. Hope this helps, but you may have to modify the logic a bit depending on what apps you need to have returned. Again, it is SLOW, but it's just something you have to work around. You might want to build a data cache in a database if it's something you'll be accessing frequently.