如何检查我的应用程序是否是默认启动器

Question

我正在开发一个基本上是主屏幕的buissness应用程序,它应该被用作默认主屏幕(作为"自助服务终端"应用程序).

有没有办法检查我的启动器是否是默认的启动器？谢谢!

PS.类似的例子,但用于检查GPS设置

LocationManager alm = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
if (alm.isProviderEnabled(android.location.LocationManager.GPS_PROVIDER)) {
    Stuffs&Actions;
}

Answer 1

您可以从中获取首选活动列表PackageManager.使用getPreferredActivities()方法.

boolean isMyLauncherDefault() {
    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 = getPackageName();
    List<ComponentName> activities = new ArrayList<ComponentName>();
    final PackageManager packageManager = (PackageManager) getPackageManager();

    // You can use name of your package here as third argument
    packageManager.getPreferredActivities(filters, activities, null);

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