How to add a ContentView to a Click Event?

问题

My assignment is to create a program that displays two buttons and my name and current time/date on the main screen. The goal is to have a passage appear once one of the buttons are pressed that will make use of the entire screen. So far, I have created the main page with the labels and buttons. However, I am very lost as to how to display the passage with respect to the button clicked. I am using the empirically fitting text way to make the best use of the screen. I have created a FontCalc.Cs page and added onContentViewSizeChanged method in the mainpage where I have all my code. I don't know how to proceed next. So far, this is what I have in my click handler event:

        passage1Button.Clicked += (sender, args) =>
        {
            passage.Text = "So they began working together, each squadron leader commanding indivual pilots, " +
                           "Ender comanding the squadron leaders. They learned manyw ays of working together, " +
                           "as the simulator forced them to try different situations. Sometimes the simulator " +
                           "gave them a larger fleet to work with; Ender set them up then in three or four " +
                           "toons that consisted of three or four squadrons each. Sometimes the simulator gave " +
                           "them a single starship with its twelve fighters, and he chose three sqaudron leaders. ";

            ContentView contentView = new ContentView
            {
                Content = passage
            };
            contentView.SizeChanged += onContentViewSizeChanged;

Instead of displaying the passage while having the buttons go away, it only freezes both the android emulator and the UWP local machine.

回答1:

You can show a modal on button click

        passage1Button.Clicked += (sender, args) =>
         {
            var contentpage = new ShowTextPage("Passage text here, goes to page constructor where label is set to passed text");

            var page = new NavigationPage(contentpage);

            Navigation.PushModalAsync(page);
         }

On the ShowTextPage, set HasNavigationBar to false

来源：https://stackoverflow.com/questions/55675568/how-to-add-a-contentview-to-a-click-event