UIWebView - UTF8 encoding??

mavrick3 · 06-26-2010, 08:31 AM

Hej,

Simple Question:

I have a UIWebView and I want that it shows a .txt file. All works fine but in germany we have some special characters like ä,ö,ü and those won't be show... I need so encode this txt-file with UTF8 but I don't know how..?

Does anyone know a solution for this problem?

Code:

[webview loadRequest:[NSURLRequest requestWithURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:path ofType:@"txt"]isDirectory:NO]]];

raphaelharboun · 06-26-2010, 11:30 AM

Quote:

Originally Posted by mavrick3

Hej,

Simple Question:

I have a UIWebView and I want that it shows a .txt file. All works fine but in germany we have some special characters like ä,ö,ü and those won't be show... I need so encode this txt-file with UTF8 but I don't know how..?

Does anyone know a solution for this problem?

Code:

[webview loadRequest:[NSURLRequest requestWithURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:path ofType:@"txt"]isDirectory:NO]]];

i suggest either you add a doctype to your text as an html page, and you specifies the UTF-8 format, or you could load the content of your file in a NSData object, then load the content with
[webView loadHtmlString...withBaseURL]
and in this method, when you make the NSString with the NSData, you specifie the UTF-8 encoding.

mavrick3 · 06-27-2010, 04:33 AM

Quote:

Originally Posted by raphaelharboun

i suggest either you add a doctype to your text as an html page, and you specifies the UTF-8 format, or you could load the content of your file in a NSData object, then load the content with
[webView loadHtmlString...withBaseURL]
and in this method, when you make the NSString with the NSData, you specifie the UTF-8 encoding.

Just tried it with NSData... Works fine! Thanks!

thebenjiman · 07-08-2010, 03:38 PM

Quote:

Originally Posted by raphaelharboun

i suggest either you add a doctype to your text as an html page, and you specifies the UTF-8 format, or you could load the content of your file in a NSData object, then load the content with
[webView loadHtmlString...withBaseURL]
and in this method, when you make the NSString with the NSData, you specifie the UTF-8 encoding.

I'm having the same problem with my code.. I'm getting the string from an XML then save it in a sqlite database using UTF-8 encoding. When I went to display the data I use this code:

Code:

	NSString* embedHTML = @"<html lang=\"fr\"><head><meta content=\"text/html; charset=UTF-8\" http-equiv=\"content-type\"/><meta name=\"viewport\" content=\"width=320; initial-scale=0.5; maximum-scale=1.0; user-scalable=1;\"/></head><body style=\"width:500;font-size:40px;\">%@</body></html>";  
	
	NSString *html = [NSString stringWithFormat:embedHTML,article.contentFile];
	
	CFShow(html);

        UIWebView *webView = (UIWebView *)[cell viewWithTag:7];
	[webView setAlpha:1.0];
			
	[webView loadData:[html dataUsingEncoding:NSUTF8StringEncoding]
					 MIMEType:@"text/html"
			 textEncodingName:@"UTF-8"
					  baseURL:nil];

Displaying the html string in console show a well formatted HTML code but the UIWebView doesn't interpret the HTML code nor the \xxxx codes.

The strange stuff is that it loads the pictures so it interprets the img...

thebenjiman · 07-08-2010, 05:23 PM

Quote:

Originally Posted by thebenjiman

I'm having the same problem with my code.. I'm getting the string from an XML then save it in a sqlite database using UTF-8 encoding. When I went to display the data I use this code:

Code:

	NSString* embedHTML = @"<html lang=\"fr\"><head><meta content=\"text/html; charset=UTF-8\" http-equiv=\"content-type\"/><meta name=\"viewport\" content=\"width=320; initial-scale=0.5; maximum-scale=1.0; user-scalable=1;\"/></head><body style=\"width:500;font-size:40px;\">%@</body></html>";  
	
	NSString *html = [NSString stringWithFormat:embedHTML,article.contentFile];
	
	CFShow(html);

        UIWebView *webView = (UIWebView *)[cell viewWithTag:7];
	[webView setAlpha:1.0];
			
	[webView loadData:[html dataUsingEncoding:NSUTF8StringEncoding]
					 MIMEType:@"text/html"
			 textEncodingName:@"UTF-8"
					  baseURL:nil];

Displaying the html string in console show a well formatted HTML code but the UIWebView doesn't interpret the HTML code nor the \xxxx codes.

The strange stuff is that it loads the pictures so it interprets the img...

I found where was my mistake! I used another encoding when saving the string from the xml; I had to use the same encoding from the beginning to the end of the process.