Android中的PackageManager提供副本

我可能是一个新手程序员，但PackageManager很复杂！ 我要向你们展示的东西毫无意义：

我可以提取设备上应用程序的名称，但如果我尝试保存到阵列，则只能保存其中的一半

        PackageManager packageManager = null;
    List<ApplicationInfo> appsListTest = new ArrayList<ApplicationInfo>();
    packageManager = context.getPackageManager();
    appsListTest = packageManager.getInstalledApplications(0);
    Log.d("LOG", " New PM : " + appsListTest.size());

    Iterator<ApplicationInfo> iterator = appsListTest.iterator();
    int counter = 0;
    String[] appName = new String[appsListTest.size()];
    while (iterator.hasNext()) {

        Log.d("LOG", String.valueOf(counter));
    //  When I print out by itself I see 64 apps. Great
        Log.d("LOG", (String) iterator.next().loadLabel(packageManager));
    //  Now when I try to save to array I only get 30
                    appName[counter] = (String) iterator.next().loadLabel(packageManager);
        counter++;


    }

应用程序不会崩溃或发生任何事情

有人能给我看一些关于如何获取应用程序名称、uid和图标的代码吗？

iterator.next（）推进列表-每个循环推进两次。相反，您应该将迭代器.next（）的结果保存为变量，然后在循环中使用该变量：

while (iterator.hasNext()) {
    Log.d("LOG", String.valueOf(counter));
    // Only call iterator.next() once per loop
    ApplicationInfo info = iterator.next();
    String label = (String) info.loadLabel(packageManager);
    Log.d("LOG", label);
    appName[counter] = label;
    counter++;
}

while (iterator.hasNext()) {
    Log.d("LOG", String.valueOf(counter));
    // Only call iterator.next() once per loop
    ApplicationInfo info = iterator.next();
    String label = (String) info.loadLabel(packageManager);
    Log.d("LOG", label);
    appName[counter] = label;
    counter++;
}