How to check programmatically if an application is installed or not in Android?

Question

We have installed applications programmatically.

1. If the application is already installed in the device the application is open automatically.
2. Otherwis

Answer 1

Check App is installed or not in Android by using kotlin.

Creating kotlin extension.

fun PackageManager.isAppInstalled(packageName: String): Boolean = try {
        getApplicationInfo(packageName, PackageManager.GET_META_DATA)
        true
    } catch (e: Exception) {
        false
    }

Now, can check if app is install or not

if (packageManager.isAppInstalled("AppPackageName")) {
    // App is installed
}else{
    // App is not installed
}