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Posts in 'ios'

How to use a hardware keyboard with FlexGrid

Xuni 2016 v3 added support for using hardware keyboards with FlexGrid. In this article we take a deeper look at how this feature works.

What's new in 2016 v3

The new Xuni includes a number of enhancements and fixes across Xamarin, iOS, and Android. This article takes a look at what new features are a part of the Xuni 2016 v3 release.

How to add Custom UIViews to an iOS FlexGrid using NativeControlGridCellFactory

Xuni 2016 v2.5 introduces an easier mechanism for embedding custom UIViews into your FlexGrid cells. This article explains how to use NativeControlGridCellFactory to create this type of custom cell.

How to implement keyboard shortcuts for FlexGrid iOS

Controls can often benefit from implementing keyboard shortcuts to make a user’s life much easier by providing convenient way to enter text and navigate. In this article we’ll take a look at using the UIKeyCommand class to implement keyboard shortcuts for an iOS FlexGrid.

Adding autocomplete text using Xuni iOS AutoComplete

We recently introduced a number of new input controls in the 2016v2 Xuni release. In this article we’ll examine how you can use the Xuni AutoComplete control to improve your iOS apps.

Xuni iOS Dynamic Frameworks Preview with Interface Builder Support

Design-time support for the Xuni iOS controls has always been on our wish list of potential features. Laying out the Storyboards visually can be much easier than working in code, especially when working with constraints. The 2016v2 Xuni release brings with it a preview of our Dynamic Frameworks with Interface Builder support.

Xuni 2016 v2 Release – See What’s New

The highlight of this release is our collection of cross-platform input controls in the new Xuni.Input library. We’ve also made some nice improvements to FlexGrid and Calendar in this release including multi-line headers and a decade view.

Getting Started with Xuni iOS and Xcode

In this blog we'll walk through getting started using Xuni iOS in Xcode, from downloading Xuni to building your first iOS app.

How to create handwritten annotations for Xuni iOS FlexChart

Several years back I remember talking to many other iOS users about popular and practical apps. I remember one of the most popular apps was a PDF annotation app that allowed you to input your own free hand annotations. Since then I’ve always considered that, on some level, people still want to have the ability to interact with digital data in much the same way they interact with printed materials. Writing your own free hand notes and annotations is sometimes the most natural way to interact with data. In this blog we’ll examine how you can add the ability to write your own free hand notes and annotations to a FlexChart.

How to Implement a Long Press Gesture for Xuni FlexGrid iOS

This article examines how you can use a UILongPressGestureRecognizer to add a long press gesture to a UIView derived control such as FlexGrid. Using a long press gesture, we'll add a "peeking" function to the row details sections.

How to optimize your iOS Apps with Debouncing

Improving app performance is a key concern for all app developers, especially when it comes to the UI. A user can enter a continuous stream of input as they type, resize, or scroll through your app. If any of these actions feel sluggish you’ll likely hear complaints and lose users. Expensive handlers for these actions can bog your app down and make it feel unresponsive. Debouncing minimizes this problem by limiting how often a function can fire and keeping your app responsive.

Enhance your apps with the new Xuni iOS CheckBox

One of the unfortunate realities in iOS development is that Apple doesn't provide you with a CheckBox control. Though this control is common to other platforms, Apple has directed users to either use a UISwitch or modify a UIButton to get similar behavior. Since there isn't an out-of-the-box solution for iOS, we've included a new Xuni CheckBox control with the 2016v1 release.

Xuni FlexChart Annotations Deep Dive

Chart annotations are a great way to call attention to specific details in your charts. As a new addition to FlexChart in Xuni 2016v1, we've introduced a number of different annotation types and configuration options. In this article, we'll highlight these different configuration options, and provide a few common use cases for chart annotations.

How to Use the Xuni iOS Calendar with EventKit

The new calendar control in the 2016v1 release of Xuni enables a new way of visualizing time related data for iOS users. A major point of interest is using the Xuni calendar control with the calendar data stored on your iOS device. Apple provides an API for accessing this built-in calendar data (such as events and reminders) called EventKit. In this article we'll examine both how to populate the calendar control with local data, as well as how to save new events using EventKit.

Using Xuni Block Based Events for iOS Event Handling

Last week, we touched on some changes to the Xuni iOS control delegates. We've also added a different mechanism altogether for triggering event based behavior without the use of delegates. In this article we'll cover how to use this new style of delegate-less iOS event handlers via block based events.

A Deep Look at the New Xuni Calendar Control

The Xuni Calendar control provides multiple date selection with month and year views. It includes built-in navigation, animation and globalization so you can get up and running very quickly. You can customize the appearance and the selection behavior to fit your requirements.

Changes to Xuni Control Delegates and C# Event Signatures

The new 2016v1 release has made a few changes to the native iOS control delegates to provide some improved behaviors when dealing with multiple instantiations of the same control type, and to give the controls better support for the C# style events available in Xamarin.iOS.

Xuni 2016 v1 Release – See What’s New

The first Xuni release of 2016 is finally here! We've packed a lot into this release including a new calendar control that fills a major gap in the standard toolkits, as well as several major enhancements for FlexGrid and FlexChart. Each feature we've added delivers new functionality and helps improve the mobile experience in some way. And as always, everything new in this release is supported in all the Xuni platforms: iOS, Android, Xamarin.Forms, Xamarin.Android, and Xamarin.iOS.

Data Mapping Provides Auto Lookup Capabilities for FlexGrid

Data Mapping provides auto lookup capabilities in FlexGrid. For example, you may want to display a customer name instead of his ID, or a color name instead of its RGB value. It’s useful when you have an ID or index field that is unreadable or not user-friendly. You can use data mapping with a readonly column or one that can be edited. FlexGrid handles the mapping for you so the user can select a value from a user-friendly list while the underlying value or key is updated. Data mapping is a common grid feature also referred to as lookup.

Adding a Share Button to an Objective-C iOS App

Xuni gives you the ability to turn your chart or gauge control into an image using the getImage method, but you may wonder how you can easily share this with others. Apple provides some tools to for this purpose not only gives you easy access to any available sharing options (Mail, Message, Facebook, etc.), but also gives you the ability to quickly save and print your data visualization. In this article, we'll cover the highlights of implementing a sharing button in a small iOS app.