UIWebView

how to add activityIndicator during webview loading?

- (void)viewDidLoad
{
    [super viewDidLoad];
    NSString * urlString = @"......";
    [_postWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:urlString]]];
    _postWebView.delegate = self;
}

- (void)webViewDidStartLoad:(UIWebView *)webView{
    [self.postProgress setHidden:NO];
    [self.postProgress startAnimating];

}

- (void)webViewDidFinishLoad:(UIWebView *)webView{
    [self.postProgress stopAnimating];
    [self.postProgress setHidden:YES];
}

get URL source code:

NSURL *mobileurl = [NSURL URLWithString:@"http://campusbus.ntu.edu.sg/ntubus/index.php/m/main"];
    NSError* error = nil;
    NSString* text = [NSString stringWithContentsOfURL:mobileurl encoding:NSASCIIStringEncoding error:&error];
    if( text )
    {
        NSLog(@"Text=%@", text);
    }
    else
    {
        NSLog(@"Error = %@", error);
    }

how to disable uiwebview(content editable html) cursor auto move (very slightly)?

this is because "automatic bring-field-into-view scrolling when you navigate around a web form"
For my case, I added listener to keyboard show and hide, during keyboard will show/hide set uiwebview.scrollview bounds to webview.bounds

- (void)scrollViewDidScroll:(UIScrollView *)scrollView {
    if (self.duringWillKeyboard)
        scrollView.bounds = self.webView.bounds;

reference

in uiwebview.scrollview scroll, some of html body style(such as height:100%) not refreshed, how to dynamically change body height?

after some debugging I found webview.frame and webview.scrollview.frame wont change, the only thing change is webview.scrollview.contentoffset.y

so execute javascript code after scrolling:

- (void)stoppedScrolling
{
    float newHeight = _htmlBodyHeight + self.webView.scrollView.contentOffset.y;
    NSLog(@"old height is %f, new height is %f", _htmlBodyHeight, newHeight);
    NSString *jsCode = [NSString stringWithFormat:@"document.body.style.height = '%fpx'",newHeight];// @"document.body.style.height = '1000px'";
    [self.webView stringByEvaluatingJavaScriptFromString:jsCode];
}

REF

how to remove extra view in keyboard when using UIWebview has input field?

ref1 ref2

how to load local html

NSURL *url = [[NSBundle mainBundle] URLForResource:@"index" withExtension:@"html"];
    NSURLRequest* request = [NSURLRequest requestWithURL:url];
    [webView loadRequest:request];

how to auto scroll uiwebview when typing ?

ref ref2

How to debug UIWebView with browser(say safari)

• Add [NSClassFromString(@"WebView") performSelector:@selector(_enableRemoteInspector)]; to appDelegate didFinishLaunchingWithOptions
• In safari preference->advanced to show develop in menu
• safari -> develop select the device/simulator and click on the webpage loaded to debug