I can successfully hide the back button but can't change image of button.
To hide back button:
NavigationPage.SetHasBackButton(page, bool);
There is Icon attribute but we need to change back button image.
The only way to do this is to override the NavigationBar on each particular OS you have.
For Android you will need to look at the ToolBar and on iOS is the NavigationBar.
Refer :
https://blog.xamarin.com/android-tips-hello-toolbar-goodbye-action-bar/
https://developer.xamarin.com/recipes/ios/content_controls/navigation_controller/change_the_back_button/
Related
I am building an app in Visual studio with crossed platform in Xamarin.Forms.
I have been trying to change the back arrow button in the navigation UI to an image in stead of the arrow, but I haven't found any good examples.
Is there anyone here who can help me?
Back arrow button in navigation bar is default feature. I think it can't be changed. If you want to change it then you should use a custom navigation bar.
I am newest in Xamarin and have question for developers with more experiences.
I want to hide custom picker when user clicks anywhere any view in app. This working with view where is custom picker opened, but when I click on toolbar he remains opened. This problem is existing only on iOS, Android work as expected.
Could i make whole toolbar to be clickable and how?
Thanks in advance
In the Picker Toolbar you can set UIBarButtonItem to add Done button. Then you can add a Click Event for the Done button and write following code in it.
YourPicker.RemoveFromSuperview();
YourPickerView.RemoveFromSuperview();
textField.ResignFirstResponder();
I am currently working on a project and when I switch to a ViewController, the back button appears at the top left, how do I set the back button so that it is customised with a custom button of my choice? Ideally I do not want the back button appearing at the top but I want it associated with a separate button when reverting back to the previous ViewController.
To not show the back button at the top just hide it.
self.navigationItem.hidesBackButton = true
And then just implement popViewControllerAnimated in your custom button action.
self.navigationController?.popViewControllerAnimated(true)
I have Xamarin App, in the app I have a page which I hide the navigation bar for design purposes. But I still want to show back button. What I could do is that I could make a back icon and put it on the layout and call Navigation.PopAsync() on image tab. However is there a way to get the designated back button from the app?
I am using xamarin.forms button control. I have set the background image to that button using custom renderer for android. I need to show the down state of the button if I click on the button. How can I do this?