Question

我在Stack Overflow上寻找解决方案，但我找不到。我的代码是：

CGRect  rect = _postContentView.bounds;
_postContentUIWV = [[UIWebView alloc] initWithFrame:rect];
[_postContentUIWV loadHTMLString:selectedPostCD.content baseURL:nil];

int fontSize = 30;
NSString *jsString = [[NSString alloc] initWithFormat:
    @"document.getElementsByTagName('span')[0].style.webkitTextSizeAdjust='%d%%'",
    fontSize];
[_postContentUIWV stringByEvaluatingJavaScriptFromString:jsString];

[_postContentView addSubview:_postContentUIWV];

HTML UIWebView中的部分内容：

<p style="text-align: justify;">
    <span style="line-height: 1.5em;">blablablablablabla</span>
</p>

我的代码不会增加UIWebView内的字体大小。我该如何解决？

Answer 1

在_postContentUIWV方法中保留与viewDidLoad的创建和初始化相关的代码：

- (void)viewDidLoad
{
    [super viewDidLoad];

    CGRect  rect = _postContentView.bounds;
    _postContentUIWV = [[UIWebView alloc] initWithFrame:rect];
    _postContentUIWV.delegate = self;
    [_postContentUIWV loadHTMLString:selectedPostCD.content baseURL:nil];
    [_postContentView addSubview:_postContentUIWV];
}

将与jsString评估相关的代码移至webViewDidFinishLoad方法：

- (void)webViewDidFinishLoad:(UIWebView *)webView
{
    int fontSize = 30;
    NSString *jsString = [[NSString alloc] initWithFormat:
        @"document.getElementsByTagName('span')[0].style.webkitTextSizeAdjust='%d%%'",
        fontSize];
    [_postContentUIWV stringByEvaluatingJavaScriptFromString:jsString];
}

Answer 2

此外，您可以将字符串连接到UIWebView：

中的现有HTML

NSString * htmlString = @"<style>p {font-size:28px}</style>";
makeBiggerCssString = [makeBiggerCssString stringByAppendingString:
                       selectedPostCD.content];
[_postContentUIWV loadHTMLString: htmlString baseURL:nil];

Answer 3

试试这个方法：

NSString *htmlString =[NSString stringWithFormat:@"<font face='Font_name' size='30'>%@", Yourstring];
[webview loadHTMLString:htmlString baseURL:nil];

iOS增加UIWebView字体大小

3 个答案: