I need to design bottom navigation bar like I attached image using xamarin.forms common code for both android and IOS. Can anybody refer any link or library tool to do this?
You should check the xamarin community toolkit, this is certainly possible to create with the tabview.
https://learn.microsoft.com/en-us/xamarin/community-toolkit/views/tabview
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I am using Xamarin Forms as a primary framework, and I rely heavily on visual studio Xaml viewer. It came that I must use Page Renderers to get some native controls from Xamarin.iOS.
Is there anyway to display the native controls in Xaml viewer? What is the best way to design the native UI components within Xamarin?
Is there anyway to display the native controls in Xaml viewer?
Unfortunately , native controls can not display in Xaml Viewer.
What is the best way to design the native UI components within Xamarin?
If want to show native control in Viewer in IOS, just using IOS designer may be the best way to see native viewer, however this is not total viewer in Xaml Viewer.You also can just see part view in Xaml,so this also has a little regret.
Is there a way to define a Label in Xamarin Forms (XAML or code-behind) AppXYZ that can be updated from the Xamarin Android AppXYZ.Android: MainActivity.cs and AppXYZ.iOS:Main.cs? i.e. upon an event in Android (e.g. BlueTooth) set a short text in a common Forms elements? After viewing many example, no clarity yet. MessageCenter perhaps?
In Android Project: MainActivity.cs (for example):
FormsAppXYZ.LabelXYZ.Text = "Updated string";
If not possible, then proper way to do this with Xamarin Android Native ? appreciated since I'll have to mix in the label into a shared Xamarin Forms Tabbed GUI.
Depending on how much Bluetooth work you need to do, my first suggestion would be to use MessagingCenter as you have already alluded to.
The other obvious approach would be to use a third party plugin, as I don't believe Xamarin have released one. I am currently aware of these two:
https://github.com/aritchie/bluetoothle
https://github.com/xabre/xamarin-bluetooth-le
There are good numbers of post of this but not of them are simple one. One of them is below one which is look simple https://developer.xamarin.com/recipes/ios/content_controls/navigation_controller/add_a_nav_bar_bottom_toolbar/
I am new to xamarin and currently using xamarin form to develope an cross plate form app. It looks above example is using xamarin native not xamarin form? Can same example will work for xamarin form? Or for this kind of UI manipulation xamarin native is better than xamarin form. As i am new to xamarin, should i focus on xamarin native instead of xamarin form for serious app development.
Thanks,
#paul
Please click here for Bottom Navigation Bar for Xamarin Forms.
This will look like below:
You could build it on your own with a ControlTemplate.
No CustomRenderer is needed.
https://developer.xamarin.com/guides/xamarin-forms/application-fundamentals/templates/control-templates/creating/
Is it possible to mix iOS Storyboards and Xamarin Forms within one application? I have a bunch of views that are easier to be created in Forms, but some which are heavily customized so we would need to create some of them in native code.
I would like to use Storyboards to create the native parts, but can't seem to find a way to navigate from a Forms page to a Storyboard and vice versa.
I don't mind doing it from code, just need to know the direction to look into and if it's even possible.
You can create native views using the concept of Custom Renderers (see links below). The idea is that you create a Xamarin Forms Control that's shared between all platforms and which old common properties (like colors, general data etc), and do the native rendering on the iOS/Android/WP projects.
So, for your storyboard, you can create it usign Xamarin.iOS, and render using a Custom Renderer. The link posted by #GSerg in the comments have some information and examples, but you can take a closer look at the oficial documentation as well:
Introduction to Custom Renderers
Customizing Controls on Each Platform
Customizing Control Rendering in Xamarin.Forms (video)
Also, for more real world examples you can take a look at the Xamarin Forms XLabs project.
Thanks to Rafael Steil's answer. I looked at the links and a few more samples.
Notably:
Custom Renderer Map
Using Xamarin Forms alongside Storyboard
And I created a sample project to show the back-and-forth navigation between Xamarin Forms and pages created in Storyboards. You can find it over here:
Xamarin Forms Mixed with Native
I am working in xamarin pcl project , I am trying to keep sliding drawer in my pcl project but i dont know how to do that .
Are you using Xamarin.Forms?
If not, i would advice to use a framework like MvvmCross (https://github.com/MvvmCross/MvvmCross)
This would enable you to split the actual implementation of the drawer / hamburger menu into the different UI projects like iOS and Android(maybe WP8 too).
Since those platforms all behave differently, for example Android uses Fragments which are replaced inside the activity containing your navigation drawer, you should use a custom presenter to determine where you want the specific platform to navigate to. You can find more information on that topic here: http://slodge.blogspot.co.uk/2013/06/presenter-roundup.html