两个不同的应用程序可以具有相同的packageName吗? [英] Can two different apps have the same packageName?

问题描述

我有以下代码来获取系统上所有应用程序的列表:

I have this code to get a list of all apps on system:

    PackageManager pm = getPackageManager();

    Intent mainIntent = new Intent(Intent.ACTION_MAIN);

    List<ResolveInfo> installedApps = pm.queryIntentActivities( mainIntent, 0);

    for(ResolveInfo elem : installedApps) {
            String PackageName = elem.activityInfo.applicationInfo.packageName;
            Log.i("TAG",PackageName);
    }

但是installedApps中的结果显示了许多重复的PackageName. 这可能吗?是因为意图失败"还是因为许多应用程序的packageNames具有相同的名称?

But the result in installedApps shows many repeated PackageNames. Is this possible? It's 'cause a "failure" of the intent or because many apps packageNames have the same name?

推荐答案

这可能吗?

Is this possible?

好的.

这是由于意图的失败"

It's 'cause a "failure" of the intent

不，至少不是因为我对失败"的定义.

No, at least not for my definition of "failure".

还是因为许多应用程序的packageNames具有相同的名称?

or because many apps packageNames have the same name?

否.

这是因为您要查询的是活动，而不是应用.一个应用程序可以具有零个，一个，两个或一百万个活动，这些活动将响应ACTION_MAIN Intent.

It is because you are querying for activities, not applications. An application can have zero, one, two, or a million activities that will respond to an ACTION_MAIN Intent.

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