MAUI 基礎頁面 cs 檔案內容

namespace Pages;
public partial class Page : ContentPage
{
    #if ANDROID
    protected override bool OnBackButtonPressed() => true; //取消 Android 返回鍵
    #endif    
    protected override void OnAppearing() //頁面初始化
    {
        base.OnAppearing();
    }

    protected override void OnSizeAllocated(double width, double height) //當它的寬度和高度確定下來時，.NET MAUI 的佈局系統會呼叫這個方法。
    {
        base.OnSizeAllocated(width, height);

        var Block_Button_AbsoluteLayout = AbsoluteLayout.GetLayoutBounds(this.Block_Button);
        var _New_Main_Height = this.Height - Block_Button_AbsoluteLayout.Height;
        var _New_Main_Flags = AbsoluteLayoutFlags.XProportional | AbsoluteLayoutFlags.YProportional | AbsoluteLayoutFlags.WidthProportional;

        AbsoluteLayout.SetLayoutBounds(this.Block_Main, new Rect(0, 0, 1, _New_Main_Height));
        AbsoluteLayout.SetLayoutFlags(this.Block_Main, _New_Main_Flags);
    }

    public Page()
    {
        InitializeComponent();
    }

    #region Function
    #endregion
}