Xamarin.Forms

Xamarin.Forms: Fully Customize Bottom Tabs on Android & Turn Off Shifting

It seems as if the BottomNavigationView aka Bottom Tabs on Android is one of the top things that I write about on my blogs. There was an introduction post [https://blog.xamarin.com/exploring-androids-bottom-navigation-view/], how to use reflection to remove shifting on native Xamarin.Android [https://montemagno.com/remove-shifting-bottomnavigationview-android/], official support in Xamarin.Forms [https://montemagno.com/xamarin-forms-official-bottom-navigation-bottom-tabs-on-android/] , and most…

James Montemagno

Xamarin.Forms: Drop Shadow/Elevation on Android Bottom Navigation TabbedPage

It is a tale as old of time fighting with Android elevation and drop shadows. First it was the Toolbar [https://montemagno.com/xamarin-forms-drop-shadows-on-navigation-toolbar/] on a Navigation page and now it is the new fancy bottom tabs [https://montemagno.com/xamarin-forms-official-bottom-navigation-bottom-tabs-on-android/] that we got in Xamarin.Forms 3.1. I know what you are thinking... another custom renderer... NOPE! You just have to know to set a few different properties correctly. H…

James Montemagno

Xamarin.Forms: Filtering a ListView with a Bindable Picker

In this edition of "Ask Motz", I will solve a very common problem when working with lists of data and how to filter them. I was recently asked how to do this completely with MVVM and data bindings without having any code behind in the page. > @JamesMontemagno [https://twitter.com/JamesMontemagno?ref_src=twsrc%5Etfw] hi I had a bindable pucker with All,Open and Close as a items which is binding using MVVM pattern with Itemsource property.But I want to filter the list view based on t…

James Montemagno

Xamarin.Forms: Official Bottom Navigation/Bottom Tabs on Android

Bottom tabs on Android... Love them... Hate them... it doesn't matter because Google seems to be all in on them. Top tabs were really designed to sort differerent types of data, while bottom tabs make a lot of sense when you want to use them for your entire application's navigation. It also has the perk that it synchronizes your application design and navigation with the iOS counterpart. Since Xamarin.Forms maps to the native controls, when you create a Tabbed Page you get the tabs exa…

James Montemagno

Xamarin.Forms: Drop Shadows on Android Navigation Toolbar

One thing that always bothered me when developing Xamarin.Forms applications for Android is that for some reason the toolbar area looked flat... well because it was flat: See how it just melds together with the rest of the applicaton. Where is that lovely drop shadow that we know and love?!?!?! Well, it is a bit complicated as that elevation drop shadow comes from the Toolbar and Xamarin.Forms applications only have 1 today that you don't really have access to. I have asked to extend the…

James Montemagno

Xamarin.Forms - Icons in Navigation Toolbar

A somewhat common scenario for mobile apps is to place an icon in the center of the Navigation Toolbar. While I am not sure if this is really best practice in 2018 there still seems to be a lot of demand to do this. What if I was to tell you that this is actually pretty easy to do and for iOS it is built directly into Xamarin.Forms with no need for a custom renderer? Let's take the default "Master/Detail" template for Xamarin.Forms in Visual Studio. It has a few tabs and an about…

James Montemagno

Push Notification Options for Mobile Apps

My good friend Andrew [https://twitter.com/andrew_hoefling] and I recently had a Twitter conversation on what is the best route to take when implementing push notifications in your mobile applications. If you do a quick search there are a lot of options out there and it can be tricky to figure out the best route to take, but having implemented push notifications in several applications I can tell you there are really only two options you need to consider. How Push Notifications Work The reason…

James Montemagno

VS App Center Custom Build Scripts for Production Apps

A few weeks ago I introduced my Mobile App Tasks for VSTS [https://montemagno.com/introducing-vsts-mobile-build-tasks-extension/] to help developers streamline their build and release pipeline for iOS and Android apps. This collection of tasks contains things that almost every app needs at some point. This includes changing app identifiers or names and most importantly bumping version codes and names. So far, feedback of these tasks has been great: The number one question I get is how would y…

James Montemagno

Tags

Xamarin.Forms: Fully Customize Bottom Tabs on Android & Turn Off Shifting

Xamarin.Forms: Drop Shadow/Elevation on Android Bottom Navigation TabbedPage

Xamarin.Forms: Filtering a ListView with a Bindable Picker

Xamarin.Forms: Official Bottom Navigation/Bottom Tabs on Android

Xamarin.Forms: Drop Shadows on Android Navigation Toolbar

Xamarin.Forms - Icons in Navigation Toolbar

Push Notification Options for Mobile Apps

VS App Center Custom Build Scripts for Production Apps

James Montemagno

Tags