UIWebview keyboard return key pressed ios 7

i am trying to find out a solution when the return key of UIWebview is clicked ! i tried the following links but it's not working !

UIWebView, customize "return" key

How to detect keyboard enter key?

i want to do some offset work when user is typing on the UIWebview and return key is pressed !

Here is the code i am using !

- (void)viewDidLoad
{
    [super viewDidLoad];
    NSString* plainContent = @"Edit here.....";
    NSString* htmlContentString = [NSString stringWithFormat:
                                   @"<html>"
                                   "<body>"

                                   "<div id=\"content\" contenteditable=\"true\" style=\"font-family: Arial\">"
                                   "%@"
                                   "</div>"

                                   "</body></html>", plainContent];

    [_webview loadHTMLString:htmlContentString baseURL:nil];
}
- (BOOL)webView:(UIWebView*)aWebView shouldStartLoadWithRequest:(NSURLRequest*)request navigationType:(UIWebViewNavigationType)navigationType{
    NSString *requestString = [[request URL] absoluteString];
    NSArray *components = [requestString componentsSeparatedByString:@":"];
    NSString *theTask = (NSString *)[components objectAtIndex:0];

    if([[[request URL] absoluteString] rangeOfString:@"enterClicked"].location!=NSNotFound)    // When "enterClicked" found
    {
        NSLog(@"enterClicked !");
        //Do your desired work
        return NO;
    }
    if([theTask isEqualToString:@"returnkeypressed"]){
        NSLog(@"theTask");
        [aWebView endEditing:YES];
        return NO;
    }
    return YES;
}

dcorbatta

Why the answer of UIWebView, customize "return" key didn't work?

I try that and work for me, I only change the method shouldStartLoadWithRequest: to:

- (BOOL)webView:(UIWebView*)aWebView shouldStartLoadWithRequest:(NSURLRequest*)request navigationType:(UIWebViewNavigationType)navigationType{
    NSString *requestString = [[request URL] absoluteString];
    NSArray *components = [requestString componentsSeparatedByString:@":"];
    NSString *theTask = (NSString *)[components objectAtIndex:0];

    if([theTask isEqualToString:@"returnkeypressed"]){
        [aWebView endEditing:YES];
        return NO;
    }
    return YES;
}

Another way is using a buffer text view, like my answer for change the keyboard.

Edit: you need add the script to detect the return key:

NSString* plainContent = @"Edit here.....";

NSString* htmlContentString = [NSString stringWithFormat:
                               @"<html>"
                                "<head>"
                                    "<script>"
                                        "function returnKeyPressed(event){"
                                            "if(window.event.keyCode == 13)"
                                                "document.location = \"returnkeypressed:\";"
                                            "return true;"
                                        "}"
                                    "</script>"
                                "</head>"
                                "<body onKeyPress=\"return returnKeyPressed(event)\">"
                                    "<div id=\"content\" contenteditable=\"true\" style=\"font-family: Arial\">%@"
                                    "</div>"
                                "</body>"
                               "</html>",
                               plainContent];

insert this code in textView: shouldChangeTextInRange:

if ([text isEqualToString:@"\n"]) {
    [textView resignFirstResponder];
    return NO;
}

来源：https://stackoverflow.com/questions/20321110/uiwebview-keyboard-return-key-pressed-ios-7

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ios

iphone

objective-c

uiwebview

ios7