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最近遇到二个键盘会自动弹出的问题：
1、UIWebView加载网页后，点击网页内的链接在UIWebView内进行跳转时，键盘自动弹起；
2、调用选择照片时，iPod上选择照片后也会自动弹出键盘，比如从图库进到具体某个文件夹内，或者再返回图库，直接点中照片然后编辑的时候，都会自动弹出；
问题一是这样处理的
- (void)webViewDidStartLoad:(UIWebView*)webView
{
[activityIndicatorView_ startAnimating];
// update by zhangyi
[[[UIApplication sharedApplication] keyWindow] endEditing:YES];
[[UIApplication sharedApplication] sendAction:@selector(resignFirstResponder) to:nil from:nil forEvent:nil];
}
- (void)webViewDidFinishLoad:(UIWebView*)webView
{
[activityIndicatorView_ stopAnimating];
[[[UIApplication sharedApplication] keyWindow] endEditing:YES];
[[UIApplication sharedApplication] sendAction:@selector(resignFirstResponder) to:nil from:nil forEvent:nil];
}
- (void)webView:(UIWebView*)webView didFailLoadWithError:(NSError*)error
{
[activityIndicatorView_ stopAnimating];
UIAlertView *alterview = [[UIAlertView alloc] initWithTitle:@"" message:[error localizedDescription] delegate:nil cancelButtonTitle:nil otherButtonTitles:@"OK", nil];
[alterview show];
[alterview release];
}
网页开始加载或加载结束时关闭键盘并发送关闭键盘的事件，如果webViewDidFinishLoad()不被调用是因为uiwebview对象需要设置delegate为self。UIWebView的透明设置，只需要增加二个属性
webView_.opaque = NO;
webView_.backgroundColor = [UIColor clearColor];
第二个问题的处理方案是，在导航切换的时候隐藏键盘并发送关闭键盘的事件
-(void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated
{
viewController.contentSizeForViewInPopover = navigationController.topViewController.view.frame.size;
[self HiddenStatusBarForIOS7];
// update by zhangyi
[[[UIApplication sharedApplication] keyWindow] endEditing:YES];
}
// update by zhangyi
-(void)navigationController:(UINavigationController *)navigationController didShowViewController:(UIViewController *)viewController animated:(BOOL)animated
{
[[[UIApplication sharedApplication] keyWindow] endEditing:YES];
[[UIApplication sharedApplication] sendAction:@selector(resignFirstResponder) to:nil from:nil forEvent:nil];
}
因为接触ios也不算特别多，暂时就使用了上述的方法来处理了。
参考：
How to make a transparent UIWebView
Add an activity indicator on a uiwebview
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原文地址：http://www.cnblogs.com/meteoric_cry/p/4486161.html
