Detect an app installed [duplicate]

StackOverflow https://stackoverflow.com/questions/18744724

  •  28-06-2022
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Question

Could I know If there is a specific app installed in the phone programmatically? My app would make a process in one way or in other depending on that. How could I get this information?

Thanks!!

Était-ce utile?

La solution 

private boolean isAppInstalled(String packageName) {
    PackageManager pm = getPackageManager();
    boolean installed = false;
    try {
        pm.getPackageInfo(packageName, PackageManager.GET_ACTIVITIES);
        installed = true;
    } catch (PackageManager.NameNotFoundException e) {
        installed = false;
    }
    return installed;
}

Autres conseils

You must know the package name to check weather the application is installed or not

say if package name is like com.myapp.name

use the following to existence 

boolean isExists;
try
        {
            getPackageManager().getPackageInfo("com.myapp.name", PackageManager.GET_ACTIVITIES);
            isExists = true;
        }
        catch(NameNotFoundException e)
        {
            isExists = false;
            // Sep 11, 2013 8:39:47 PM
            Log.e("Exception", "NameNotFoundException" + String.valueOf(e.getMessage()));
            e.printStackTrace();
        }

Must use try catch around to handling expected error when NameNotFoundException is thrown

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