Protected override bool OnBackButtonPressed() This is suppose to let you override the Android on-screen (hardware) back button action, where a developer can override this method and it would intercept that action giving the developer the option whether to allow it or cancel it. OnBackButtonPressed() This method has been there for quite a long time in Xamarin.Forms framework right out of the box, I remember using this long time back, but they kept on breaking its behavior during many releases, which was quite troublesome. Since overriding the Backwards Navigation in Xamarin.Forms has always been quite confusing and difficult to handle, when I started off of Xamarin.Forms Shell, I thought of giving it a clean slate and a fresh try from scratch.īased on that here are the findings I came up with… Case 1: OnBackButtonPressed() So when we need to consider both those scenarios when taking control of backward navigation. Navigation bar Back button (iOS and Android). Ways of the Backwards…įundamentally there are two ways how a backward navigation could occur, although there could be other ways depending on the flow of our app… So I decided to share my experience with yol and provide a proper solid solution for your worries. I’ve been working on trying to override the back button behavior on Xamairn.Forms Shell recently, both with Navigation bar button and Android hardware back button. This topic has been quite a confusing and wobbly area in Xamarin.Forms for the longest time, even I remember having to write numerous customer renderers, and hacks to just to get this simple handle done, overriding the back button… Yes, we got hope!īut with shiny new Xamarin.Forms Shell seems to have provided quite a promising solution for this, out of the box framework itself, without us having to do much work. Let me share all about overriding the Back Button navigation in Xamarin.Forms Shell applications, oh and yes! it includes handling the Android on-screen back button as well! □
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