xcode loadHTMLString baseURL:nil 在 iOS5 中不起作用
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loadHTMLString baseURL:nil not working in iOS5
提问by moon
I got a problem with UIWebView. I want to render my own html code in UIWebView.
我遇到了 UIWebView 的问题。我想在 UIWebView 中呈现我自己的 html 代码。
if I use the below code, it's working fine.
如果我使用下面的代码，它工作正常。
NSBundle *thisBundle = [NSBundle mainBundle];
NSString *path = [thisBundle pathForResource:@"foo" ofType:@"html"];
NSURL *baseURL = [NSURL fileURLWithPath:path];
[self.webView loadHTMLString:@"foo.html" baseURL:baseURL];
I want to render the html with below code. But it's not working. foo.html contains exactly the same content with the NSString* one. Any hints? Thanks in advance. =)
我想用下面的代码呈现 html。但它不起作用。foo.html 包含与 NSString* 完全相同的内容。任何提示？提前致谢。=)
NSString* one = @"<html><head><title></title></head><body><img src=\"image.jpg\"/></body></html>";
[self.webView loadHTMLString:one baseURL:nil] ;
回答by Oliver
I use this code that works perfectly :
我使用这个完美的代码：
NSString* htmlContent = @"<html><head><title></title></head><body><img src='image.jpg' /></body></html>";
[self.webView loadHTMLString:htmlContent baseURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] bundlePath]]];
Bu sure that image.jpg is included into your project.
请确保 image.jpg 包含在您的项目中。
回答by Yuyutsu
create JS file demo.jsand add code
创建 JS 文件demo.js并添加代码
var hello = function(str){
???? ?return str;
};
var hello = function(str){
???? ?return str;
};
add UIWebView => To embed JavaScript in a dummy html file and load that into the UIWebView
添加 UIWebView => 将 JavaScript 嵌入到一个虚拟的 html 文件中并将其加载到 UIWebView
[self.webView loadHTMLString:@"<script src=\"demo.js\"></script>"
??????????????baseURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] resourcePath]]];
[self.webView loadHTMLString:@"<script src=\"demo.js\"></script>"
??????????????baseURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] resourcePath]]];
Here is the code to make JS call
这是进行JS调用的代码
NString *str=@"hi JavaScript";
NSString *function = [[NSString alloc] initWithFormat: @"hello(%@)", str];
NSString *result = [webView stringByEvaluatingJavaScriptFromString:function];
Now, there is one important safety tip to make this actually work: The UIWebView must actually be loaded a view. It doesn't have to be visible, but in order for the WebKit engine to execute the JS, it must be on a view.
现在，有一个重要的安全提示可以使它真正起作用：UIWebView 必须实际加载一个视图。它不一定是可见的，但为了让 WebKit 引擎执行 JS，它必须在视图上。
