I am trying to implement Stripe in Xamarin forms with Apply Pay
I am following the following tutorial but I am stuck at one problem I can't find the STPApplePayContext class in Xamarin
The Library I am using
IOS Bindings or Xamarin.Stripe.iOS
Both provide iOS binidngs for Stripe.
Now as I am following the tutorial I can't find the STPApplePayContext in any of those Libs or something similar.
My code with iOS Bindings
public Task<bool> InitializeAsync(string clientToken)
{
// STPPaymentConfiguration
StripeSdk.STPPaymentConfiguration.SharedConfiguration().PublishableKey =
"pk_test_123456";
_canPay = Stripe_ApplePay.DeviceSupportsApplePay;
return Task.FromResult(true);
}
public bool CreatePaymentRequest(double amount)
{
_paymentRequest = _stripe.PaymentRequestWithMerchantIdentifier(_merchantID,"US","USD");
_paymentRequest.SupportedNetworks = _paymentNetworks;
_paymentRequest.MerchantCapabilities = PKMerchantCapability.ThreeDS;
_paymentRequest.PaymentSummaryItems = new[]
{
new PKPaymentSummaryItem()
{
Label = "Item",
Amount = new NSDecimalNumber(amount)
}
};
return true;
}
public bool Pay()
{
// var applePayContext = STPApplePayContext;
// if (applePayContext)
// {
// }
// if let applePayContext = STPApplePayContext(paymentRequest: paymentRequest, delegate: self) {
// // Present Apple Pay payment sheet
// applePayContext.presentApplePay(on: self)
// } else {
// // There is a problem with your Apple Pay configuration
// }
}
Can anybody point me in the right direction?
Related
I'm writing nativescript plugin for image picker. I'm finished with part of android. Now, I'm writing code for ios. It's showing image picker dialog, but assigned delegates are not getting triggered. Please check my code below.
import * as application from "tns-core-modules/application";
import * as frame from "tns-core-modules/ui/frame"
export class Nativemediapicker extends NSObject implements UIImagePickerControllerDelegate {
public static ObjCProtocols = [UIImagePickerControllerDelegate];
get() {
let version = NSBundle.mainBundle.objectForInfoDictionaryKey("CFBundleShortVersionString");
return version;
}
static new(): Nativemediapicker {
return <Nativemediapicker>super.new();
}
private _callback: (result?) => void;
private _errorCallback: (result?) => void;
public initWithCallbackAndOptions(callback: (result?) => void, errorCallback: (result?) => void, options?): Nativemediapicker {
this._callback = callback;
this._errorCallback = errorCallback;
if (options) {
// collect options
}
console.log('initWithCallbackAndOptions')
return this;
}
static registerFileProvider(provider) { }
static pickFiles(mimeType, onResult, onError) {
onError("ERROR: For ios this feature is comming soon.");
}
static takePicture(onResult, onError) {
// if (!UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.Camera)) {
// onError("ERROR: For ios simulator this feature is not supported.");
// return
// }
let imagePicker = UIImagePickerController.new()
imagePicker.delegate = Nativemediapicker.new().initWithCallbackAndOptions(onResult, onError, null)
imagePicker.sourceType = UIImagePickerControllerSourceType.PhotoLibrary
imagePicker.allowsEditing = false
// imagePicker.showsCameraControls = true
let topMostFrame = frame.topmost();
if (topMostFrame) {
let viewController: UIViewController = topMostFrame.currentPage && topMostFrame.currentPage.ios;
if (viewController) {
while (viewController.parentViewController) {
// find top-most view controler
viewController = viewController.parentViewController;
}
while (viewController.presentedViewController) {
// find last presented modal
viewController = viewController.presentedViewController;
}
viewController.presentViewControllerAnimatedCompletion(imagePicker, true, null);
}
}
}
static recordVideo(onResult, onError) {
onError("ERROR: For ios this feature is comming soon.");
}
static recordAudio(onResult, onError) {
onError("ERROR: For ios this feature is comming soon.");
}
imagePickerControllerDidCancel(picker): void {
console.log("imagePickerControllerDidCancel")
this._errorCallback("ERROR: Image capturing cancelled.");
}
imagePickerControllerDidFinishPickingMediaWithInfo(picker, info): void {
console.log("imagePickerControllerDidCancel")
this._errorCallback("ERROR: Image capturing done.");
}
}
I'm not getting, what I'm doing wrong and where?
Please help me, guys...
I suspect the reason is that your delegate is being cleaned up by garbage collector. One important rule with iOS is, you must always keep a reference of native object in a JS variable to keep it alive.
Try,
private _delegate;
....
this._delegate = Nativemediapicker.new().initWithCallbackAndOptions(onResult, onError, null);
imagePicker.delegate = this._delegate;
After adding this line in takePicture function it worked.
imagePicker.modalPresentationStyle = UIModalPresentationStyle.CurrentContext;
I am trying to use Ether JS in my Flutter application. I know that it is not directly supported and even the existing implementations are not really well documented.
Is there any way I can use this library in my Flutter application for Android and iOS? Any other alternative suggestion is also welcome.
I have tried js.dart but could not figure out how to use it. I am not even sure if it is the right choice for this scenario.
I have also tried Flutter WebView Plugin.
plugin.evalJavascript(
'function add(a,b){return a+b;}add(2,3);'
).then((s) {
print(s);
}
This function rightly returns 5 as the response. But I do not understand how to use the EtherJS library like this.
I am a noob with Flutter, Dart and JS. Any help will be appreciated.
I eventually solved this by using Platform channels as suggested by rmtmckenzie in this answer.
I downloaded the JS file and saved it to android/app/src/main/res/raw/ether.js and ios/runner/ether.js for Android and iOS respectively.
Installing dependencies
Android
Add LiquidCore as a dependency in app level build.gradle
implementation 'com.github.LiquidPlayer:LiquidCore:0.5.0'
iOS
For iOS I used the JavaScriptCore which is part of the SDK.
Platform Channel
In my case, I needed to create a Wallet based on a Mnemonic (look up BIP39) I pass in into the JS function. For this, I created a Platform channel which passes in the Mnemonic (which is basically of type String) as an argument and will return a JSON object when done.
Future<dynamic> getWalletFromMnemonic({#required String mnemonic}) {
return platform.invokeMethod('getWalletFromMnemonic', [mnemonic]);
}
Android Implementation (Java)
Inside MainActivity.java add this after this line
GeneratedPluginRegistrant.registerWith(this);
String CHANNEL = "UNIQUE_CHANNEL_NAME";
new MethodChannel(getFlutterView(), CHANNEL).setMethodCallHandler(
new MethodChannel.MethodCallHandler() {
#Override
public void onMethodCall(MethodCall methodCall, MethodChannel.Result result) {
if (methodCall.method.equals("getWalletFromMnemonic")) {
ArrayList<Object> args = (ArrayList<Object>) methodCall.arguments;
String mnemonic = (String) args.get(0);
JSObject walletFromMnemonic = getWalletFromMnemonic(mnemonic);
if (walletFromMnemonic == null) {
result.error("Could not create", "Wallet generation failed", null);
return;
}
String privateKey = walletFromMnemonic.property("privateKey").toString();
String address = walletFromMnemonic.property("address").toString();
HashMap<String, String> map = new HashMap<>();
map.put("privateKey", privateKey);
map.put("address", address);
JSONObject obj = new JSONObject(map);
result.success(obj.toString());
} else {
result.notImplemented();
}
}
}
);
Declare the following methods which perform the actual action of interacting with the JS library and returning the result to the platform channel.
#Nullable
#VisibleForTesting
private JSObject getWalletFromMnemonic(String mnemonic) {
JSContext jsContext = getJsContext(getEther());
JSObject wallet = getWalletObject(jsContext);
if (wallet == null) {
return null;
}
if (!wallet.hasProperty("fromMnemonic")) {
return null;
}
JSFunction walletFunction = wallet.property("fromMnemonic").toObject().toFunction();
return walletFunction.call(null, mnemonic).toObject();
}
#Nullable
#VisibleForTesting
private JSObject getWalletObject(JSContext context) {
JSObject jsEthers = context.property("ethers").toObject();
if (jsEthers.hasProperty("Wallet")) {
return jsEthers.property("Wallet").toObject();
}
return null;
}
#VisibleForTesting
String getEther() {
String s = "";
InputStream is = getResources().openRawResource(R.raw.ether);
try {
s = IOUtils.toString(is);
} catch (IOException e) {
s = null;
e.printStackTrace();
} finally {
IOUtils.closeQuietly(is);
}
return s;
}
#VisibleForTesting
JSContext getJsContext(String code) {
JSContext context = new JSContext();
context.evaluateScript(code);
return context;
}
iOS Implementation (Swift)
Add the following lines in AppDelegate.swift inside the override application method.
final let methodChannelName: String = "UNIQUE_CHANNEL_NAME"
let controller: FlutterViewController = window?.rootViewController as! FlutterViewController
let methodChannel = FlutterMethodChannel.init(name: methodChannelName, binaryMessenger: controller)
methodChannel.setMethodCallHandler({
(call: FlutterMethodCall, result: FlutterResult)-> Void in
if call.method == "getWalletFromMnemonic" {
guard let mnemonic = call.arguments as? [String] else {
return
}
if let wallet = self.getWalletFromMnemonic(mnemonic: mnemonic[0]) {
result(wallet)
} else {
result("Invalid")
}
}
})
Add the logic to interact with the JavaScriptCore.
private func getWalletFromMnemonic(mnemonic: String) -> Dictionary<String, String>? {
let PRIVATE_KEY = "privateKey"
let ADDRESS = "address"
guard let jsContext = self.initialiseJS(jsFileName: "ether") else { return nil }
guard let etherObject = jsContext.objectForKeyedSubscript("ethers") else { return nil }
guard let walletObject = etherObject.objectForKeyedSubscript("Wallet") else { return nil }
guard let walletFromMnemonicObject = walletObject.objectForKeyedSubscript("fromMnemonic") else {
return nil
}
guard let wallet = walletFromMnemonicObject.call(withArguments: [mnemonic]) else { return nil }
guard let privateKey = wallet.forProperty(PRIVATE_KEY)?.toString() else { return nil }
guard let address = wallet.forProperty(ADDRESS)?.toString() else { return nil }
var walletDictionary = Dictionary<String, String>()
walletDictionary[ADDRESS] = address
walletDictionary[PRIVATE_KEY] = privateKey
return walletDictionary
}
private func initialiseJS(jsFileName: String) -> JSContext? {
let jsContext = JSContext()
guard let jsSourcePath = Bundle.main.path(forResource: jsFileName, ofType: "js") else {
return nil
}
do {
let jsSourceContents = try String(contentsOfFile: jsSourcePath)
jsContext!.evaluateScript(jsSourceContents)
return jsContext!
} catch {
print(error.localizedDescription)
}
return nil
}
Honestly, if you're new to Flutter, Dart, and JS you are going to have some trouble with this unless you're willing to invest a fair amount of time. It does depend on what exactly you're trying to make with the Ether JS library, but in general you're going to have a hard time integrating it with flutter. There is an Ethereum package but it seems much narrower in scope than the ether.js library you've been looking at - it mostly seems focused on communication with the RPC api rather than dealing with wallets etc.
If you're dead set on using Flutter, your best bet would be to use Android & iOS specific libraries to do the actual ethereum stuff and to communicate through Platform Channels to a common api in your dart code. This could be a significant undertaking depending on how much of the API you need to expose, especially for someone new to flutter/dart and possibly to android/ios development as well. This will be much more performant than communicating back and forth with javascript running in a webview though, and realistically probably easier to code as well because flutter doesn't really have any good mechanisms for calling js code right now.
There is another option - to use a different client UI framework entirely. React native might do everything you need and has the advantage of being in Javascript so it can most likely integrate the Ether.js library easily, although I can't guarantee that it will actually fully support the ether.js library (its runtime might not have the necessary crypto extensions for example).
Future<String> loadJS(String name) async {
var givenJS = rootBundle.loadString('assets/$name.js');
return givenJS.then((String js) {
flutterWebViewPlugin.onStateChanged.listen((viewState) async {
if (viewState.type == WebViewState.finishLoad) {
flutterWebViewPlugin.evalJavascript(js);
}
});
});
}
I'm creating a Game App in objective-c which is using Google Play Game services for realtime Multiplayer functionality. I follows the documentation at https://developers.google.com/games/services/ios/turnbasedMultiplayer. In my app there are two options Auto match and Invite Match. Auto Match functionality working fine. But Invite match not.
I follow following Code for this
- (int)minPlayersForPlayerPickerLauncher {
return 1;
}
- (int)maxPlayersForPlayerPickerLauncher {
return 2;
}
- (IBAction)inviteFriendsWasPressed:(id)sender
{
// This can be a 2-4 player game
[GPGLauncherController sharedInstance].playerPickerLauncherDelegate = self;
// This assumes your class has been declared a GPGPlayerPickerLauncherDelegate
[[GPGLauncherController sharedInstance] presentPlayerPicker];
}
on click this button Action follow Screen is open
See here
After that when I enter emailId in textfield there is no action perform to search particular user.
Please help me
Thanks
Unfortunately, the player selection no longer works since Google+ is no longer integrated into Play Game Services: https://android-developers.googleblog.com/2016/12/games-authentication-adopting-google.html
// request code for the "select players" UI
// can be any number as long as it's unique
final static int RC_SELECT_PLAYERS = 10000;
// launch the player selection screen
// minimum: 1 other player; maximum: 3 other players
Intent intent = Games.RealTimeMultiplayer.getSelectOpponentsIntent(mGoogleApiClient, 1, 3);
startActivityForResult(intent, RC_SELECT_PLAYERS);
#Override
public void onActivityResult(int request, int response, Intent data) {
if (request == RC_SELECT_PLAYERS) {
if (response != Activity.RESULT_OK) {
// user canceled
return;
}
// get the invitee list
Bundle extras = data.getExtras();
final ArrayList<String> invitees =
data.getStringArrayListExtra(Games.EXTRA_PLAYER_IDS);
// get auto-match criteria
Bundle autoMatchCriteria = null;
int minAutoMatchPlayers =
data.getIntExtra(Multiplayer.EXTRA_MIN_AUTOMATCH_PLAYERS, 0);
int maxAutoMatchPlayers =
data.getIntExtra(Multiplayer.EXTRA_MAX_AUTOMATCH_PLAYERS, 0);
if (minAutoMatchPlayers > 0) {
autoMatchCriteria = RoomConfig.createAutoMatchCriteria(
minAutoMatchPlayers, maxAutoMatchPlayers, 0);
} else {
autoMatchCriteria = null;
}
// create the room and specify a variant if appropriate
RoomConfig.Builder roomConfigBuilder = makeBasicRoomConfigBuilder();
roomConfigBuilder.addPlayersToInvite(invitees);
if (autoMatchCriteria != null) {
roomConfigBuilder.setAutoMatchCriteria(autoMatchCriteria);
}
RoomConfig roomConfig = roomConfigBuilder.build();
Games.RealTimeMultiplayer.create(mGoogleApiClient, roomConfig);
// prevent screen from sleeping during handshake
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
}
}
// create a RoomConfigBuilder that's appropriate for your implementation
private RoomConfig.Builder makeBasicRoomConfigBuilder() {
return RoomConfig.builder(this)
.setMessageReceivedListener(this)
.setRoomStatusUpdateListener(this);
}
how to create small task bar (Reply, Copy, Forword and Delete) in uitableviewcell like whatsapp when the message on press?
"UIMenuController" with "menuItems:" will be useful for your custom Actions.
Apple Documentation Link : https://developer.apple.com/reference/uikit/uimenucontroller
thank Ios Developer for your direction.. i already use "UIMenuController", but this menu is not shown.
my code:
[Export("LongPressMethod:")]
public void LongPressMethod(UILongPressGestureRecognizer gestureRecognizer)
{
if (gestureRecognizer.State == UIGestureRecognizerState.Began)
{
var menuController = UIMenuController.SharedMenuController;
var copyMenuItem = new UIMenuItem("copy", new ObjCRuntime.Selector("CopyRow"));
var pasteMenuItem = new UIMenuItem("paste", new ObjCRuntime.Selector("PasteRow"));
var location = gestureRecognizer.LocationInView(bc);
bc.BecomeFirstResponder();
menuController.MenuItems = new[] { copyMenuItem, pasteMenuItem };
menuController.SetTargetRect(new CGRect(location.X, location.Y, 100, 100), bc);
menuController.SetMenuVisible(true, true);
}
}
[Export("CopyRow:")]
void Row(UIMenuController controller)
{
// do something
}
[Export("PasteRow:")]
void PasteRow(UIMenuController controller)
{
// do something
}
I am trying to add Instagram in "Share To" functionality in my app. I have seen the Instagram's iPhone hooks documents. I have created custom UIActivty which works fine but my question is, is there a way to add "Import with Instagram" functionality as it can be seen in iOS's Photos app iOS Photo App:
In my app for some reason, it does not show that "Import with Instagram". my app Share view :
I do not want to share only with Instagram so no ".igo"
EDIT: All of this is specifically for iOS versions < 10. For some reasons Instagram Share Extension works fine (for my app) in devices with iOS >= 10.
EDIT: I am trying to share image and video with ".jpeg" and ".mov" formats respectively
I have seen/read that Instagram added share extension in release 8.2, so technically all the apps should show "Instagram" in share tray, i.e. it can be seen in Google Photos app.
public void NativeShareImage(UIView sourceView, CGRect sourceRect,
UIImage image, string shareCaption, string emailSubject)
{
string filename = Path.Combine(FileSystemUtils.GetTemporaryDataPath(), "Image.jpg");
NSError err = null;
using(var imgData = image.AsJPEG(JpgImageQuality))
{
if(imgData.Save(filename, false, out err))
{
Logger.Information("Image saved before native share as {FileName}", filename);
}
else
{
Logger.Error("Image NOT saved before native share as to path {FileName}. {Error}", filename, err.Description);
return;
}
}
// this are the items that needs to be shared
// Instagram ignores the caption, that is known
var activityItems = new List<NSObject>
{
new NSString(shareCaption),
new NSUrl(new Uri(filename).AbsoluteUri)
};
// Here i add the custom UIActivity for Instagram
UIActivity[] applicationActivities =
{
new InstagramActivity(image, sourceRect, sourceView),
}
var activityViewController = new UIActivityViewController(activityItems.ToArray(), applicationActivities);
activityViewController.SetValueForKey(new NSString(emailSubject), new NSString("subject"));
activityViewController.CompletionWithItemsHandler = (activityType, completed, returnedItems, error) =>
{
UserSharedTo(activityType, completed);
};
// Hide some of the less used activity types so that Instagram shows up in the list. Otherwise it's pushed off the activity view
// and the user has to scroll to see it.
activityViewController.ExcludedActivityTypes = new[] { UIActivityType.AssignToContact, UIActivityType.CopyToPasteboard, UIActivityType.Print };
if(UIDevice.CurrentDevice.UserInterfaceIdiom == UIUserInterfaceIdiom.Phone)
{
PresentViewController(activityViewController, true, null);
}
else
{
activityViewController.ModalPresentationStyle = UIModalPresentationStyle.Popover;
PresentViewController(activityViewController, true, null);
// Get the popover presentation controller and configure it.
UIPopoverPresentationController presentationController = activityViewController.PopoverPresentationController;
presentationController.PermittedArrowDirections = UIPopoverArrowDirection.Down;
presentationController.SourceRect = sourceRect;
presentationController.SourceView = sourceView;
}
}
// when opening custom activity use ".igo" to only show instagram
public class InstagramActivity : UIActivity
{
public InstagramActivity(UIImage imageToShare, CGRect frame, UIView view, string shareCaption = "")
{
_ImageToShare = imageToShare;
_Frame = frame;
_View = view;
}
public override UIImage Image { get { return UIImage.FromBundle("Instagram"); } }
public override string Title { get { return "Instagram"; } }
public override NSString Type { get { return new NSString("PostToInstagram"); } }
public string Caption { get; set; }
public override bool CanPerform(NSObject[] activityItems)
{
return UIApplication.SharedApplication.CanOpenUrl(NSUrl.FromString("instagram://app"));
}
public override void Prepare(NSObject[] activityItems)
{
}
public override void Perform()
{
string filename = Path.Combine(FileSystemUtils.GetTemporaryDataPath(), "Image.igo");
NSError err = null;
using(var imgData = _ImageToShare.AsJPEG(JpgImageQuality))
{
if(imgData.Save(filename, false, out err))
{
Logger.Information("Instagram image saved as {FileName}", filename);
}
else
{
Logger.Error("Instagram image NOT saved as to path {FileName}. {Error}", filename, err.Description);
Finished(false);
return;
}
}
var url = NSUrl.FromFilename(filename);
_DocumentController = UIDocumentInteractionController.FromUrl(url);
_DocumentController.DidEndSendingToApplication += (o, e) => Finished(true);
_DocumentController.Uti = "com.instagram.exclusivegram";
if(!string.IsNullOrEmpty(ShareCaption))
{
_DocumentController.Annotation = NSDictionary.FromObjectAndKey(new NSString(ShareCaption), new NSString("InstagramCaption"));
}
_DocumentController.PresentOpenInMenu(_Frame, _View, true);
}
UIImage _ImageToShare;
CGRect _Frame;
UIView _View;
UIDocumentInteractionController _DocumentController;
}