How to get versionCode from package name of any installed app?

Question

I am creating an app like play store for my company. I have upload apk on my server from my web application. I have downloaded apk from url in my android app and prompt to install screen. Now what I want that I am getting new version code and package name from API. I want to get version code of installed app from package name. How can I get version code from package name which I get from API ?

score 2 · Answer 1 · answered Aug 19 '19 at 05:38

All the provided answers are correct. However, be aware that PackageInfo.versionCode has been deprecated in API Level 28. Use getLongVersionCode instead for devices running Android Pie or later as below...

    var info: PackageInfo? = null
    var versionCode: Long? = null

    try {
        info = context?.packageManager?.getPackageInfo(context?.packageName, 0)
        versionCode =
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.P)  info?.versionCode?.toLong()
        else info?.longVersionCode 
    }
    catch(e: PackageManager.NameNotFoundException){

    }

Better to use PackageInfoCompat – Gabriele Mariotti Aug 19 '19 at 05:53 — Gabriele Mariotti, Aug 19 '19 at 05:53

Manohar · Answer 2 · 2019-08-19T05:37:23.407

0

use this

public Long getVersionNo(String packageName){
    PackageInfo packageInfo  = null;
    try {
        packageInfo = getPackageManager().getPackageInfo(packageName, 0);
        return packageInfo.getLongVersionCode();
    } catch (PackageManager.NameNotFoundException e) {
        e.printStackTrace();
    }
   return null;
}

pass package name to this function and it will return the version number of the app installed on device . If app is not found it will return null .

edited Aug 19 '19 at 05:37

answered Aug 19 '19 at 05:31

Manohar

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It is givig error "cannot resolve method getLongVersionCode()" – Moin Khan Aug 19 '19 at 10:22
make sure you have following imports `import android.content.pm.PackageInfo; import android.content.pm.PackageManager;` – Manohar Aug 19 '19 at 11:33

Vinay · Answer 3 · 2019-08-19T06:40:14.977

0

List<PackageInfo> packagesInstalledList = getPackageManager().getInstalledPackages(PackageManager.GET_META_DATA);
PackageInfo packageInfo = context.getPackageManager().getPackageInfo( "com.xyz", 0 );

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P){
    long versionCode = PackageInfoCompat.getLongVersionCode(packageInfo);
}else {
    long versionCode = packageInfo.versionCode;//PackageInfo Deprecated in API-28
}

String versionName = packageInfo.versionName;

edited Aug 19 '19 at 06:40

answered Aug 19 '19 at 05:38

Vinay

732
5
8

Pls consider that packageInfo.versionCode was deprecated in API level 28. – Gabriele Mariotti Aug 19 '19 at 05:54
It is givig error "cannot resolve method getLongVersionCode()" – Moin Khan Aug 19 '19 at 10:49
make sure your targetSdkVersion is 28 – Vinay Aug 19 '19 at 17:23

How to get versionCode from package name of any installed app?

3 Answers3