问题
As a safety measure I would like to get the list of apps that aren't installed from the Play Store. Is there a way to do this?
The packageManager
contains a method getInstalledApplications
but I don't know which flags to add to get the list. Any help would be appreciated.
Edit: Here is an code example of v4_adi's answer.
public static List<String> getAppsFromUnknownSources(Context context)
{
List<String> apps = new ArrayList<>();
PackageManager packageManager = context.getPackageManager();
List<PackageInfo> packList = packageManager.getInstalledPackages(0);
for (int i = 0; i < packList.size(); i++)
{
PackageInfo packInfo = packList.get(i);
if (packageManager.getInstallerPackageName(packInfo.packageName) == null)
{
apps.add(packInfo.packageName);
}
}
return apps;
}
This is a good start, however this also returns a lot off pre-installed Android and Samsung apps. Is there anyway to remove them from the list? I only want user installed apps from unknown sources.
回答1:
The following link has answer to your question The PackageManager class supplies the getInstallerPackageName method that will tell you the package name of whatever installed the package you specify. Side-loaded apps will not contain a value.
How to know an application is installed from google play or side-load?
回答2:
Originally I thought it would be enough to retrieve the apps that weren't installed via the Google Play Store. Later I found that I also needed to filter out the pre-installed system applications. I found the last part of the puzzle in another post: Get list of Non System Applications
public static List<String> getAppsFromUnknownSources(Context context)
{
List<String> apps = new ArrayList<>();
PackageManager packageManager = context.getPackageManager();
List<PackageInfo> packList = packageManager.getInstalledPackages(0);
for (int i = 0; i < packList.size(); i++)
{
PackageInfo packInfo = packList.get(i);
boolean hasEmptyInstallerPackageName = packageManager
.getInstallerPackageName(packageInfo.packageName) == null;
boolean isUserInstalledApp = (packageInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) == 0;
if (hasEmptyInstallerPackageName && isUserInstalledApp)
{
apps.add(packInfo.packageName);
}
}
return apps;
}
来源:https://stackoverflow.com/questions/42225681/android-get-list-of-non-play-store-apps