Questions tagged as 'ios'

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Can I use an iPhone to test a Xamarin app?

I am learning to develop with Xamarin (using VS 2015 and Windows). To test the app on Android is quiet, I use Genymotion. What about IOS? How can I test? Just with a physical iPhone? Or is there an IOS emulator?     
asked by 12.06.2017 / 20:51
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What is the best and safest way to identify a device in webservice? [closed]

I'm developing an APP (currently only Android - pure Java), it will consume a webservice made in PHP (I use the Silex mini framework). As we know today we have to protect everything to the maximum, so I took some security measures: I will...
asked by 13.02.2017 / 09:35
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Error: Expression implicitly coerced from 'String?' to Any

How do I fix the following error:    Expression implicitly coerced from 'String?' to Any The error is given in the code snippet below: let frase = lblFrase.text let textToShare = [ frase ] ///O erro esta nesta linha let activityVi...
asked by 28.09.2017 / 16:54
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UICollectionViewController 3 columns auto layout

I'm creating a UICollectionViewController with 2 or 3 columns, when using autolayout in some Devices works perfectly but in others not, I did not find anything that speaks of how to dynamize these columns with objective-c. I found one in swif...
asked by 13.07.2016 / 01:16
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How to pass the value of a variable through a button to another class in Swift

I have a login screen, with the fields email and password. I need to use in another viewController the email that was used to log in to the system. But I can not pass the typed email in the viewController Login to another viewController.     
asked by 16.05.2016 / 01:17
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Get index of the element in Swift

I'm trying to use the indexOf to know the index of an object inside the array but I do not know which parameter (s) to pass. My code: /// Struct that define the track model
asked by 16.12.2015 / 18:33
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Problem with Core Data on iOS 7

I have a problem between iOS 8 and iOS 7. I am using Core Data, I have an entity called Pessoa ( NSManagedObject ), but when performing an update on the data happens a EXC_BAD_ACCESS , only this, no further description or erro...
asked by 20.02.2015 / 11:54
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Splash screen while receiving web service data

Hello!  I have a following problem: I need a splash screen that stays on screen while the app receives the data from the web service to popular a BD sqlite on the iPhone.  I tried using the Xcode image launch, but the image only stays on the scr...
asked by 19.07.2014 / 19:09
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Numeric keypad no input type="Text", ionic cordova

I have a field for cpf in my app, so when the user is to populate cpf, the device should show only the numeric keypad. But if I change the <input type="text"> to <input type="number"> , the numeric keypad appears, but it...
asked by 04.04.2018 / 22:39
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React Native and hybrid? [closed]

I wanted to know if react native and really hybrid, like ionic, that you program a code only and do export to both platforms (IOS / ANDROID), or similar to xamarin, that you do the 2 different codes. In project development I program as "only...
asked by 25.06.2018 / 20:06