What is the Android equivalent of iOS's UITabBarController? - xamarin

Question

I have the following code in iOS renderer:
public class TabbedPageRenderer : TabbedRenderer
{
protected override void OnElementChanged(VisualElementChangedEventArgs e)
{
base.OnElementChanged(e);
try
{
var tabbarController = (UITabBarController)this.ViewController;
if (null != tabbarController)
{
tabbarController.ViewControllerSelected += OnTabBarReselected;
}
}
catch (Exception exception)
{
Console.WriteLine(exception);
}
}
void OnTabBarReselected(object sender, UITabBarSelectionEventArgs e)
{
var tabs = Element as TabbedPage;
var playTab = tabs.Children[4];
if (TabBar.SelectedItem.Title == "Play")
{
if (tabs != null)
{
playTab.Title = "Pause";
playTab.Icon = "ionicons_2_0_1_pause_outline_22.png";
}
App.pauseCard = false;
}
else
{
if (tabs != null)
{
playTab.Title = "Play";
playTab.Icon = "ionicons_2_0_1_play_outline_25.png";
}
App.pauseCard = true;
}
}
}
What this do is let the user pause/play a timer running in a page. When opening the app, Home tab will be open so the Play icon is displayed. But when switching to the Play tab, by default the timer is running so the Pause title and icon is displayed.
The code above works perfectly for iOS. But I am still lost in Android. I have tried the following code for Android:
public class MyTabbedPageRenderer: TabbedPageRenderer, TabLayout.IOnTabSelectedListener
{
void TabLayout.IOnTabSelectedListener.OnTabReselected(TabLayout.Tab tab)
{
var tabs = Element as TabbedPage;
var playTab = tabs.Children[4];
var selectedPosition = tab.Position;
if(selectedPosition == 4)
{
if (playTab.Title == "Play")
{
if (tabs != null)
{
playTab.Title = "Pause";
playTab.Icon = "ionicons_2_0_1_pause_outline_22.png";
}
App.pauseCard = false;
}
else
{
if (tabs != null)
{
playTab.Title = "Play";
playTab.Icon = "ionicons_2_0_1_play_outline_25.png";
}
App.pauseCard = true;
}
}
}
}
Obviously this would only work when reselecting the tab. Would really appreciate if someone could point me to the right direction here.

Answer 1

Like #G.hakim, you also need add TabLayout.IOnTabSelectedListener.OnTabSelected method, and it will be same as OnTabReselected:
void TabLayout.IOnTabSelectedListener.OnTabSelected(TabLayout.Tab tab)
{
var tabs = Element as TabbedPage;
var playTab = tabs.Children[4];
var selectedPosition = tab.Position;
if(selectedPosition == 4)
{
if (playTab.Title == "Play")
{
if (tabs != null)
{
playTab.Title = "Pause";
playTab.Icon = "ionicons_2_0_1_pause_outline_22.png";
}
App.pauseCard = false;
}
else
{
if (tabs != null)
{
playTab.Title = "Play";
playTab.Icon = "ionicons_2_0_1_play_outline_25.png";
}
App.pauseCard = true;
}
}
}