当我将焦点放在Editor
上时,键盘与Editor
和Button
重叠。我知道,有一个解决方案:将元素放在ScrollView
内,但是此解决方案在ListView
内滚动ScrollView
时会产生很大的问题。我应该怎么做才能使其正常工作?
布局:
红色-ScrollView
,
绿色-ListView
,
蓝色-StackLayout
和Editor
和Button
。
以下是视频的工作原理: https://streamable.com/wvd3h
解决方案2是使用Xamarin.Forms.Plugins-KeyboardOverlap,但是此插件的TabbedPage上的选项卡栏有问题
答案 0 :(得分:0)
您可以创建一个自定义的iOS渲染器,而不是使用滚动视图,当键盘处于活动状态时,该渲染器会向上移动视图(使用边距)。
在此可以看到一个示例: https://github.com/rdelrosario/ChatUIXForms/blob/master/ChatUIXForms.iOS/Renderers/ChatEntryRenderer.cs
相关代码:
void RegisterForKeyboardNotifications()
{
if (_keyboardShowObserver == null)
_keyboardShowObserver = UIKeyboard.Notifications.ObserveWillShow(OnKeyboardShow);
if (_keyboardHideObserver == null)
_keyboardHideObserver = UIKeyboard.Notifications.ObserveWillHide(OnKeyboardHide);
}
void OnKeyboardShow(object sender, UIKeyboardEventArgs args)
{
NSValue result = (NSValue)args.Notification.UserInfo.ObjectForKey(new NSString(UIKeyboard.FrameEndUserInfoKey));
CGSize keyboardSize = result.RectangleFValue.Size;
if (Element != null)
{
Element.Margin = new Thickness(0, 0, 0, keyboardSize.Height); //push the entry up to keyboard height when keyboard is activated
}
}
void OnKeyboardHide(object sender, UIKeyboardEventArgs args)
{
if (Element != null)
{
Element.Margin = new Thickness(0); //set the margins to zero when keyboard is dismissed
}
}
void UnregisterForKeyboardNotifications()
{
if (_keyboardShowObserver != null)
{
_keyboardShowObserver.Dispose();
_keyboardShowObserver = null;
}
if (_keyboardHideObserver != null)
{
_keyboardHideObserver.Dispose();
_keyboardHideObserver = null;
}
}
在Android上,这可能不是问题,但如果是这样,您可以尝试
android:Application.WindowSoftInputModeAdjust="Resize"