How to refer a local image file from UIWebView's HTML on iPhone?

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面向向阳花
面向向阳花 2021-01-21 16:16

I would like to use temp.jpg\" /> in my UIWebView\'s HTML.
How can I refer to a local file named

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  • 2021-01-21 17:06

    I was searching a lot for a solution and found the following which
    in my case working fine, I have a local HTML string and a local image I convert the image into base 64

    you may use this website to convert image to base64 encoding

    Converter

    and rewrite the HTML string to have the base64 image in the image tag like the following

        <img src="data:image/jpeg;base64,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" alt="Red dot" >
    

    for Testing the result tye the following Online HTML editor

    W3School

    hope it will help for others or maybe get a better solution, best of luck

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  • 2021-01-21 17:14

    This will create a URL object that contains the location of your file on disk. You can then use this to output a valid file:// URL string that can be used within img tags.

    NSURL* fileURL = [[NSBundle mainBundle] URLForResource:@"temp" withExtension:@"jpg"];
    
    NSLog(@"<img src=\"%@\" />", fileURL.absoluteString);
    
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  • 2021-01-21 17:16
    NSURL *url=[[NSBundle mainBundle] bundleURL];
    [webView loadHTMLString:string baseURL:url];
    

    This let's the root be the app's main bundle.

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  • 2021-01-21 17:22

    I have no idea where my root is...

    UIWebView looks up files relative to the HTML file you loaded in it. So perhaps it will be your app bundle.

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