IOS隱藏鍵盤

標籤：

最近遇到二個鍵盤會自動彈出的問題：

1、UIWebView載入網頁後，點擊網頁內的連結在UIWebView內進行跳轉時，鍵盤自動彈起；

2、調用選擇照片時，iPod上選擇照片後也會自動彈出鍵盤，比如從圖庫進到具體某個檔案夾內，或者再返回圖庫，直接點中照片然後編輯的時候，都會自動彈出；

 

問題一是這樣處理的

- (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];
}

網頁開始載入或載入結束時關閉鍵盤並發送關閉鍵盤的事件，如果webViewDidFinishLoad()不被調用是因為uiwebview對象需要設定delegate為self。UIWebView的透明設定，只需要增加二個屬性

webView_.opaque = NO;
webView_.backgroundColor = [UIColor clearColor];

 

第二個問題的處理方案是，在導航切換的時候隱藏鍵盤並發送關閉鍵盤的事件

-(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];
}

 

因為接觸ios也不算特別多，暫時就使用了上述的方法來處理了。

 

 

參考：

How to make a transparent UIWebView

Add an activity indicator on a uiwebview

IOS隱藏鍵盤