使用Android Deep Link的UPI支付网关 _Android

书史足自悦，安用勤与劬。这篇文章主要讲述使用Android Deep Link的UPI支付网关相关的知识，希望能为你提供帮助。
是否有任何工作样本使用android Deep Link集成UPI支付网关。我完成了NPCI规范并实施了它没有成功。交易未完成。

protected override void OnActivityResult(int requestCode, Result resultCode, Intent data) { base.OnActivityResult(requestCode, resultCode, data); Console.WriteLine("Request Code:" + requestCode); }private void RunUPI(string MobileNo) { var UPIUri = Android.Net.Uri.Parse("upi://pay?pa=xxx@xxxx& pn=xxxxxx& mc=null& tid=null& tr=test101& tn=This%20is%20test%20payment& am=10& mam=null& cu=INR& url=null"); Intent intent = new Intent(); intent.SetAction(Intent.ActionView); intent.SetData(UPIUri); var activities = PackageManager.QueryIntentActivities(intent, PackageInfoFlags.MatchDefaultOnly); var isIntentSafe = activities.Count > 0; if (true == isIntentSafe) { var chooser = Intent.CreateChooser(intent, "Pay With"); chooser.SetFlags(ActivityFlags.NewTask); // Verify the intent will resolve to at least one activity if (chooser.ResolveActivity(PackageManager) != null) { txnUPIRequestCode = 0; StartActivityForResult(chooser, txnUPIRequestCode); } } }

答案您的案例中的问题与UPI无关，但Android如何管理Activity结果和Intents。
如果调用者（在本例中为Intent.FLAG_ACTIVITY_NEW_TASK）正在请求启动的活动（在本例中为UPI PSP），则不能使用Activity。 [source]
所以一个简单的解决方案就是简单地创建Uri并启动没有旗帜的Intent。在java中看起来像：

private void launchUPI(){ // look below for a reference to these parameters Uri uri = Uri.parse("upi://pay").buildUpon() .appendQueryParameter("pa", "xxx@xxxxx") .appendQueryParameter("pn", "XYZXYZ") .appendQueryParameter("tn", "Pay for in-app purchase") .appendQueryParameter("am", "20") .appendQueryParameter("cu", "INR") .build(); Intent upiPayIntent = new Intent(Intent.ACTION_VIEW); upiPayIntent.setData(uri); Intent chooser = Intent.createChooser(upiPayIntent, "Pay with"); if(null != chooser.resolveActivity(getPackageManager())) { Log.d(TAG, "UPI Payment resolved to activity"); startActivityForResult(chooser, REQ_UPIPAYMENT); } else { Log.d(TAG, "No activity found to handle UPI Payment"); } }@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if(REQ_UPIPAYMENT == requestCode){ if(RESULT_OK == resultCode){ Log.d(TAG, "UPI Payment successfull"); } else { Log.d(TAG, "UPI Payment failed"); } } }

就请求参数而言，以下是我从UPI DeepLinking Specificication page获得的简单参考。