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Wojciech Kulik
Xamarin.Forms

Auto hiding Tab Bar on navigation

Posted on 25 August 201829 August 2018 Wojciech KulikLeave a commentPosted in Xamarin.Forms, Xamarin.iOS

In Xamarin.Forms on iOS it’s not as easy as it should be to hide TabBar on navigation. In native programming there is a property HidesBottomBarWhenPushed, unfortunately it doesn’t work with Xamarin.Forms. The main idea to solve …


iOS

Designed by Freepik

Swift – Bluetooth Low Energy – how to get paired devices?

Posted on 21 July 201830 September 2018 Wojciech KulikLeave a commentPosted in iOS

This question is asked probably by many programmers who start working with BLE on iOS. Unfortunately, it’s not possible to retrieve a list of paired peripherals from iOS. Neither it’s possible to check if a …


iOS

Designed by Freepik

Swift – Bluetooth Low Energy communication using Flow Controllers

Posted on 21 July 201821 July 2018 Wojciech KulikLeave a commentPosted in iOS

Bluetooth Low Energy communication on iOS is not straight forward. You don’t just create a class and start reading/writing data like from local storage. Whole communication is based on asynchronous events and if you want …


API

Facebook – new policy and requirements for Graph API

Posted on 7 July 20187 July 2018 Wojciech KulikLeave a commentPosted in API

The new Facebook’s policy introduces several changes which may be harmful for small scale developers. It looks like access to for example user_friends permission will be now limited to companies which can afford to implement …


iOS

Designed by Freepik

How to set translation key from Storyboard on iOS?

Posted on 12 June 201817 June 2018 Wojciech KulikLeave a commentPosted in iOS

In this post I will show how to add a simple localization support to iOS application and how to use it from Storyboard. In Apple’s documentation you can read an article Localizing Your App. However, the …


iOS

Designed by Freepik

Data protection on iOS – security overview

Posted on 9 June 201817 June 2018 Wojciech KulikLeave a commentPosted in iOS

Projects at my work usually require data encryption. Therefore I faced multiple times with question like “how safe is built-in iOS encryption?”. I had those concerns about Jailbreak, passcode, setting a proper protection class etc. …


Cloud

Implement autocomplete feature using Azure Search Service and AWS API Gateway

Posted on 3 March 201817 June 2018 Wojciech KulikLeave a commentPosted in Cloud

In this article I will explain how to use cloud solutions to provide endpoints for autocomplete feature in serverless applications. First of all you will have to create free accounts on Microsoft Azure and Amazon Web …


C#

Deploy a free backend with REST API using Amazon Web Services (AWS)

Posted on 25 February 201817 June 2018 Wojciech KulikLeave a commentPosted in C#, Cloud

Nowadays most applications require internet access. Usually we need a backend to provide content, store data or to share information between multiple users. However, if you work on a small personal project, most likely you …


Xamarin.Forms

Bindable dynamic TableView sections and rows

Posted on 20 February 201817 June 2018 Wojciech KulikLeave a commentPosted in Xamarin.Forms

In this article I will show you how to implement an attached property for Xamarin.Forms.TableView to add support for bindable sections. It’s very useful when you want to keep your logic clean in ViewModel and …


Xamarin.iOS

Designed by Freepik

Bluetooth Low Energy – background mode on iOS

Posted on 25 December 20172 August 2018 Wojciech KulikLeave a commentPosted in Xamarin.iOS

In order to provide support for bluetooth background mode, you need to add UIBackgroundModes key in info.plist file with array value containing one of the following strings: bluetooth-central – if your application connects to BLE devices, bluetooth-peripheral – if …


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  • How to set translation key from Storyboard on iOS?

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