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初始化

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xhm
2023-11-21 23:05:03 +08:00
commit 2455630dad
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CPF.Android/SoftKeyboardListner.cs Normal file
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using Android.App;
using Android.Content;
using Android.OS;
using Android.Runtime;
using Android.Util;
using Android.Views;
using Android.Widget;
using CPF.Platform;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace CPF.Android
{
class SoftKeyboardListner : Java.Lang.Object, ViewTreeObserver.IOnGlobalLayoutListener
{
private const int DefaultKeyboardHeightDP = 100;
private static readonly int EstimatedKeyboardDP = DefaultKeyboardHeightDP + (Build.VERSION.SdkInt >= BuildVersionCodes.Lollipop ? 48 : 0);
private readonly ISurfaceView _host;
public bool _wasKeyboard;
public SoftKeyboardListner(View view)
{
_host = view as ISurfaceView;
}
public IViewImpl viewImpl = null;
int top = 0;
public void OnGlobalLayout()
{
int estimatedKeyboardHeight = (int)TypedValue.ApplyDimension(ComplexUnitType.Dip,
EstimatedKeyboardDP, _host.Resources.DisplayMetrics);
var rect = new global::Android.Graphics.Rect();
_host.GetWindowVisibleDisplayFrame(rect);
int heightDiff = (int)_host.Screen.Bounds.Height - (rect.Bottom);
var isKeyboard = heightDiff >= estimatedKeyboardHeight;
if (isKeyboard != _wasKeyboard)
{
if (GeneralView.editor != null && isKeyboard)
{
var ele = GeneralView.editor as UIElement;
var p = ele.PointToScreen(new Drawing.Point(ele.ActualSize.Width, ele.ActualSize.Height));
var offset = p.Y - (_host.Screen.Bounds.Height - heightDiff);
if (offset > 0)
{
viewImpl = ele.Root.ViewImpl;
top = viewImpl.Position.Y;
viewImpl.Position = new PixelPoint(viewImpl.Position.X, top - (int)offset);
}
}
else
{
//_host.Top = top;
if (viewImpl != null)
{
viewImpl.Position = new PixelPoint(viewImpl.Position.X, top);
viewImpl = null;
}
}
}
_wasKeyboard = isKeyboard;
}
}
}