Displaying image in web view_问答_开发者_运维开发者技术经验分享

开发者 https://www.devze.com 2023-03-17 02:39 出处：网络

i try to display image in my web view background, but i got little blue rectangle and an interrogation mark inside. My code is this:

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i try to display image in my web view background, but i got little blue rectangle and an interrogation mark inside. My code is this:

NSString *myDescriptionHTML = [NSString stringWithFormat:@"<html> \n"
                                   "<head> \n"
                                   "<style type=\"text/css\"> \n"
                                   "body {font-family:helvetica; font-size:12;}\n"
                                   "h2 {font-family:Times new roman;color: #105870}"
                                   "</style> \n"
                                   "</head> \n"
                                   "<body><img src=\"background.png\" /><h2>Nom station</h2>%@<h2>Adresse</h2>%@<h2>Tél</h2>%@<h2>Sens de circulation</h2>%@<h2>Voie</h2>%@<h2>Station de lavage</h2>%@<h2>Commerce</h2>%@<h2>Distance</h2>%@<h2>Types de carburants</h2>%@</body>\n"
                                   "</html>",leNomDeLaStation,adresseDeLaStation,telDeLaStation,circulationDeLaStation,voieDeLaStation,lavageDeLaStation,commerceDeLaStation,distanceDeLaStation,typesDeCarburantsDeLaStation];
    [webView loadHTMLString:myDescriptionHTML baseURL:nil];

All my text is shown correctly except the background.png. Thanx for help :)

EDIT : i have tried this :

NSString* 开发者_运维技巧basePath = [[NSBundle mainBundle] bundlePath];
    NSURL *url = [NSURL URLWithString:basePath];
    NSString *myDescriptionHTML = [NSString stringWithFormat:@"<html> \n"
                                   "<head> \n"
                                   "<style type=\"text/css\"> \n"
                                   "body {font-family:helvetica; font-size:12;}\n"
                                   "h2 {font-family:Times new roman;color: #105870}"
                                   "</style> \n"
                                   "</head> \n"
                                   "<body><img src=\"background.png\" /><h2>Nom station</h2>%@<h2>Adresse</h2>%@<h2>Tél</h2>%@<h2>Sens de circulation</h2>%@<h2>Voie</h2>%@<h2>Station de lavage</h2>%@<h2>Commerce</h2>%@<h2>Distance</h2>%@<h2>Types de carburants</h2>%@</body>\n"
                                   "</html>",leNomDeLaStation,adresseDeLaStation,telDeLaStation,circulationDeLaStation,voieDeLaStation,lavageDeLaStation,commerceDeLaStation,distanceDeLaStation,typesDeCarburantsDeLaStation];
    [webView loadHTMLString:myDescriptionHTML baseURL:url];

Always i got the interrogation mark there :(

You need specifying the correct baseURL in:

[webView loadHTMLString:myDescriptionHTML baseURL:nil];

otherwise the web view will not know where to look for you "relative" uris (the ones that do not start with http://)

Try this:

NSString* basePath = [[NSBundle mainBundle] bundlePath];
[webView loadHTMLString:myDescriptionHTML baseURL:[NSURL fileURLWithPath:basePath]];

EDIT: double check that you included background.png in the resources of your project and that the file name is correct.

i solved my issue, i have forgot the : fileURLWithPath:path method my code is this for any one who have problem with that :

NSString *path = [[NSBundle mainBundle] bundlePath];
    NSURL *baseURL = [NSURL fileURLWithPath:path];
    NSString *myDescriptionHTML = [NSString stringWithFormat:@"<html> \n"
                                   "<head> \n"
                                   "<style type=\"text/css\"> \n"
                                   "body {font-family:helvetica; font-size:12;}\n"
                                   "h2 {font-family:Times new roman;color: #105870}"
                                   "</style> \n"
                                   "</head> \n"
                                   "<body><img src=\"background.png\" /><h2>Nom station</h2>%@<h2>Adresse</h2>%@<h2>Tél</h2>%@<h2>Sens de circulation</h2>%@<h2>Voie</h2>%@<h2>Station de lavage</h2>%@<h2>Commerce</h2>%@<h2>Distance</h2>%@<h2>Types de carburants</h2>%@</body>\n"
                                   "</html>",leNomDeLaStation,adresseDeLaStation,telDeLaStation,circulationDeLaStation,voieDeLaStation,lavageDeLaStation,commerceDeLaStation,distanceDeLaStation,typesDeCarburantsDeLaStation];
    [webView loadHTMLString:myDescriptionHTML baseURL:baseURL];