在 Android L 中显示错误的默认应用程序列表

Question

我想在 Android L 中获取所有默认应用程序。我使用了以下代码，但它们给了我错误的解决方案。先看看我的代码

private void getMyAppLauncherDefault() {
    final IntentFilter filter = new IntentFilter(Intent.ACTION_MAIN);
    filter.addCategory(Intent.CATEGORY_HOME);
    List<IntentFilter> filters = new ArrayList<IntentFilter>();
    filters.add(filter);
    List<ComponentName> activities = new ArrayList<ComponentName>();
    final PackageManager packageManager = (PackageManager) getPackageManager();

    packageManager.getPreferredActivities(filters, activities, null);
    for (ComponentName activity : activities) {

        Log.d(TAG,"======packet default:==="+activity.getPackageName());
    }
}

这是日志。日志显示com.google.android.googlequicksearchbox 和com.vlingo.midas 之间的错误结果。它们都是语音应用程序，但我将com.google.android.googlequicksearchbox 设置为默认值。我不知道为什么日志显示com.vlingo.midas。我该如何解决？谢谢

 16:02:44.817 /com.exam D/Sample: ======packet default:===com.sec.android.gallery3d
 16:02:44.827 /com.exam D/Sample: ======packet default:===com.android.mms
 16:02:44.827 /com.exam D/Sample: ======packet default:===com.android.mms
 16:02:44.827 /com.exam D/Sample: ======packet default:===com.vlingo.midas
 16:02:44.827 /com.exam D/Sample: ======packet default:===com.sec.android.app.sbrowser
 16:02:44.827 /com.exam D/Sample: ======packet default:===com.sec.android.gallery3d
 16:02:44.827 /com.exam D/Sample: ======packet default:===com.android.mms
 16:02:44.827 /com.exam D/Sample: ======packet default:===com.sec.android.app.launcher
 16:02:44.827 /com.exam D/Sample: ======packet default:===com.sec.android.app.sbrowser
 16:02:44.827 /com.exam D/Sample: ======packet default:===com.android.mms
 16:02:44.827 /com.exam D/Sample: ======packet default:===com.google.android.googlequicksearchbox
 16:02:44.827 /com.exam D/Sample: ======packet default:===com.sec.android.app.sbrowser
 16:02:44.827 /com.exam D/Sample: ======packet default:===com.sec.android.gallery3d
 16:02:44.827 /com.exam D/Sample: ======packet default:===com.android.mms
 16:02:44.827 /com.exam D/Sample: ======packet default:===com.google.android.apps.plus

更新：有默认应用名称

Answer 1

要检查您的应用是否设置为“默认”，请尝试以下代码：

 public static boolean isMyAppDefault(Context context) {
        final IntentFilter filter = new IntentFilter(Intent.ACTION_MAIN);
        filter.addCategory(Intent.CATEGORY_HOME);

        List<IntentFilter> filters = new ArrayList<IntentFilter>();
        filters.add(filter);

        final String myPackageName = context.getPackageName();
        List<ComponentName> activities = new ArrayList<ComponentName>();
        final PackageManager packageManager = (PackageManager) context.getPackageManager();

        packageManager.getPreferredActivities(filters, activities, null);

        for (ComponentName activity : activities) {
            if (myPackageName.equals(activity.getPackageName())) {
                return true;
            }
        }
        return false;
    }

Answer 2

您在上面添加的代码完全正确。它确实执行了它的意图。

现在您已将com.google.android.googlequicksearchbox 语音应用程序设置为默认值，这就是它显示在日志中的原因。 虽然 com.vlingo.midas 显示可能是因为它被设置为其他类型的默认类别而不是语音。