设置UIWebView内容时不显示键盘时移动-SetUIWebViewContentnottomovewhenkeyboardisshown

17  

If you want to disable ALL scrolling, including the auto-scroll when you navigate between form fields, setting webView.scrollView.scrollEnabled=NO doesn't quite cover everything. That stops normal tap-and-drag scrolling, but not the automatic bring-field-into-view scrolling when you navigate around a web form.

如果要禁用所有滚动，包括在表单字段之间导航时自动滚动，则设置webView.scrollView.scrollEnabled = NO并不能完全覆盖所有内容。这样可以在浏览Web表单时停止正常的点击并拖动滚动，但不会停止自动带入场视图滚动。

Also, watching for UIKeyboardWillShowNotification will let you prevent scrolling when the keyboard appears, but that will do nothing if the keyboard is already up from editing a different form field.

此外，观看UIKeyboardWillShowNotification将阻止您在键盘出现时滚动，但如果键盘已经编辑不同的表单字段，则无法执行任何操作。

Here's how to prevent ALL scrolling in three simple steps:

以下是如何通过三个简单步骤来防止所有滚动：

1) After you create the UIWebView, disable normal scrolling:

1）创建UIWebView后，禁用正常滚动：

myWebView.scrollView.scrollEnabled = NO;

2) Then register your view controller as the scrollView's delegate:

2）然后将视图控制器注册为scrollView的委托：

myWebView.scrollView.delegate = self;

(And make sure to add to your class's @interface definition to prevent compiler warnings)

（并确保将 添加到类的@interface定义以防止编译器警告）

3) Capture and undo all scroll events:

3）捕获和撤消所有滚动事件：

// UIScrollViewDelegate method
- (void)scrollViewDidScroll:(UIScrollView *)scrollView {
    scrollView.bounds = myWebView.bounds;
}

0  

I think this class should help with your problem. It scrolls content up, so if u have textfield at the bottom of the screen, it will move it above the keyboard.

我认为这堂课应该有助于解决你的问题。它会向上滚动内容，因此如果您在屏幕底部有文本字段，它会将其移动到键盘上方。

0  

I found the solution for me. I just scroll it down again after scrolling up. First I catch notification UIKeyboardWillShowNotification by adding observer to it [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil]; then implement method:

我找到了解决方案。我向上滚动后再向下滚动它。首先我通过添加观察者来捕获通知UIKeyboardWillShowNotification [[NSNotificationCenter defaultCenter] addObserver：self selector：@selector（keyboardWillShow :) name：UIKeyboardWillShowNotification object：nil];然后实现方法：

-(void)keyboardWillShow:(NSNotification*)aNotification{
NSDictionary* info = [aNotification userInfo];
float kbHeight = [[NSNumber numberWithFloat:[[info objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue].size.height]floatValue];
float kbWidth = [[NSNumber numberWithFloat:[[info objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue].size.width]floatValue];
BOOL keyboardIsVisible=[self UIKeyboardIsVisible];
//Check orientation and scroll down webview content by keyboard size
if(kbWidth==[UIScreen mainScreen].bounds.size.width){
    if (!keyboardIsVisible) {
        [[chatView scrollView] setContentOffset:CGPointMake(0, -kbHeight+10) animated:YES];
    } //If is landscape content scroll up is about 113 px so need to scroll down by 113
}else if (kbHeight==[UIScreen mainScreen].bounds.size.height){
    if (!keyboardIsVisible) {
        [[chatView scrollView] setContentOffset:CGPointMake(0, -113) animated:YES];
    }
}
}

This is not what exactly I asked but helped me to solve my problem.

这不是我要求的，但帮助我解决了我的问题。

Thanks.

谢谢。