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There are resources for this when using UITextView. How do I register for the Done key button press event? The keyboard shows up when the user focuses a form inside the webview.
540
The main idea is to use Javascript injection to achieve what you want.
You can try catching the DOM event called onfocusout (Refer to http://www.w3schools.com/jsref/event_onfocusout.asp for more details).
Following is the example of how you could do it for UIWebView. WKWebView can be handled in a similar way.
Call this to inject some Javascript code after the first time your webview loaded
[webView stringByEvaluatingJavaScriptFromString:@"document.getElementById('youTextFieldID').addEventListener('onfocusout', function () {"
@"var frame = document.createElement('iframe');"
@"frame.src = 'doneEditing://';"
@"document.body.appendChild(frame);"
@"setTimeout(function () { document.body.removeChild(frame); }, 0);"
@"}, false);"];
Write your UIWebView delegate method like this
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {
if ([request.URL.scheme isEqualToString:@"doneEditing"]) {
// Call you event handler here
[self doneButtonTouchEventHandler]
return NO;
}
return YES;
}
Good luck
116
The key is to add event listeners when the web page loads. I assume that you want to know about the blur event of a text field.
Here is a basic working example:
<html>
<head>
<script>
function initPage() {
document.addEventListener('focusin', handleFocusIn);
document.addEventListener('focusout', handleFocusOut);
}
function handleFocusIn(e) {
alert('In');
}
function handleFocusOut(e) {
alert('Out');
}
</script>
</head>
<body onload="initPage()">
<form>
<input type="text" name="username">
</form>
</body>
</html>
I hope that helps, please let me know otherwise!
Good luck!
29
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