SDKLess PhonePe Intent

Method to check whether the PhonePe UPI app is installed on the android device:

private boolean isUpiRegistered() {
    String phonepePackageName = "com.phonepe.app"; 
    //For PreProd app, "com.phonepe.app.preprod"
    //For Production app, "com.phonepe.app"
    Uri uri = Uri.parse(String.format("%s://%s", "upi", "pay"));
    Intent upiUriIntent = new Intent();
    upiUriIntent.setData(uri);
    PackageManager packageManager = getApplication().getPackageManager();
    List < ResolveInfo > resolveInfoList = packageManager.queryIntentActivities(upiUriIntent, PackageManager.MATCH_DEFAULT_ONLY);
    if (resolveInfoList != null) {
        for (ResolveInfo resolveInfo: resolveInfoList) {
            String packageName = resolveInfo.activityInfo.packageName;
            if (packageName != null && !packageName.isEmpty() && phonepePackageName.matches(packageName)) {
                return true;
            }
        }
    }
    return false;
}

SDKLess Open Intent

Method to get the list of all the UPI apps installed on the android device:

private ArrayList < String > getInstalledUPIApps() {
    ArrayList < String > upiList = new ArrayList < > ();
    Uri uri = Uri.parse(String.format("%s://%s", "upi", "pay"));
    Intent upiUriIntent = new Intent();
    upiUriIntent.setData(uri);
    PackageManager packageManager = getApplication().getPackageManager();
    List < ResolveInfo > resolveInfoList = packageManager.queryIntentActivities(upiUriIntent, PackageManager.MATCH_DEFAULT_ONLY);
    if (resolveInfoList != null) {
        for (ResolveInfo resolveInfo: resolveInfoList) {
            upiList.add(resolveInfo.activityInfo.packageName);
        }
    }
    return upiList;
}