Example: Request startSamsungPay() API Method

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publicvoid onPayButtonClicked(View v) {
    // Call startSamsungPay() method of PaymentManager class.
    // To create a transaction request for makeTransactionDetails() in
    the following code, see Example: Transaction Request Structure.
    try {
        mPaymentManager.startSamsungPay(makeTransactionDetails(), "enter
        product ID",
mStatusListener);
    } catch (NullPointerException e) {
    e.printStackTrace();
    }
}

private PaymentManager.StatusListener mStatusListener = new
PaymentManager.StatusListener() {
    @Override
    public void onFailure(int errCode, String msg) {
        Log.d(TAG, " onFailed );
    }
    @Override
    public void onSuccess(PaymentInfo arg0, String result) {
        Log.d(TAG, "");
    };