我目前正在使用以下代码:
List<PackageInfo> packs = getPackageManager().getInstalledPackages(0);
但它会返回由设备制造商和我安装的应用程序。如何限制它以便只返回我安装的应用程序?
// Flags: See below
int flags = PackageManager.GET_META_DATA |
PackageManager.GET_SHARED_LIBRARY_FILES |
PackageManager.GET_UNINSTALLED_PACKAGES;
PackageManager pm = getPackageManager();
List<ApplicationInfo> applications = pm.getInstalledApplications(flags);
for (ApplicationInfo appInfo : applications) {
if ((appInfo.flags & ApplicationInfo.FLAG_SYSTEM) == 1) {
// System application
} else {
// Installed by user
}
}
标志:
Zelimir的回答是正确的。但在某些情况下,它不会为您提供所有已安装的第三方应用程序。 ApplicationInfo
也有标志FLAG_UPDATED_SYSTEM_APP
设置
如果已将此应用程序安装为内置系统应用程序的更新
在我的智能手机上,这些应用程序包括Amazone Kindle,Adobe Reader,Slacker Radio等。这些应用程序未附带手机,并且是从Google Play商店安装的。因此,它们可以被视为第三方应用程序。
所以,您可能还想检查FLAG_UPDATED_SYSTEM_APP
标志。
final PackageManager packageManager = _context.getPackageManager();
List<ApplicationInfo> installedApplications =
packageManager.getInstalledApplications(PackageManager.GET_META_DATA);
for (ApplicationInfo appInfo : installedApplications)
{
if ((appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0)
{
// IS A SYSTEM APP
}
if ((appInfo.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0)
{
// APP WAS INSTALL AS AN UPDATE TO A BUILD-IN SYSTEM APP
}
}
如果我执行pkgAppsList.get(0),它将返回ResolveInfo对象。如何获取图标和packageName等信息?
这样做:
ResolveInfo info = pkgAppsList.get(0);
ApplicationInfo appInfo = info.activityInfo.applicationInfo;
PackageManager packageManager = = getPackageManager();
//And then you retrieve all needed data:
Drawable packageIcon = packageManager.getApplicationIcon(applicationInfo); //Icon
String packageName = applicationInfo.packageName; //Package name
String packageLabel = String.valueOf(packageManager.getApplicationLabel(applicationInfo)) //Package label(app name)
尼古拉的答案是正确的,但可以使用迭代器进行优化。这就是我想出的:
/**
* Return list of installed user applications
*/
static List<ApplicationInfo> getUserInstalledApplications(Context context) {
// Get installed applications
final PackageManager packageManager = context.getPackageManager();
List<ApplicationInfo> installedApplications =
packageManager.getInstalledApplications(PackageManager.GET_META_DATA);
// Remove system apps
Iterator<ApplicationInfo> it = installedApplications.iterator();
while (it.hasNext()) {
ApplicationInfo appInfo = it.next();
if ((appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
it.remove();
}
}
// Return installed applications
return installedApplications;
}
final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
final List pkgAppsList = context.getPackageManager().queryIntentActivities( mainIntent, 0);
用户
pkgAppsList.get(i).activityInfo.packageName
取packageName
pkgAppsList.get(i).activityInfo.applicationInfo.loadLabel(getPackageManager()).toString()
到fetch app level name
Android PackageManager类用于检索有关当前安装在设备上的应用程序包的信息。您可以通过调用getPackageManager()来获取PackageManager类的实例。 PackageManager提供了查询和操作已安装软件包及相关权限等的方法。在这个Android示例中,我们获取Android中已安装应用程序的列表。
PackageManager packageManager = getPackageManager(); List list = packageManager.getInstalledApplications(PackageManager.GET_META_DATA)
packageManager.getInstalledApplications()返回设备上安装的所有应用程序包的List。如果我们设置了标志GET_UNINSTALLED_PACKAGES,那么将返回所有应用程序的列表,包括那些用DONT_DELETE_DATA删除的应用程序(部分安装了带有数据目录的应用程序)。
完整信息here.
另一个好read here.