uiwebview缩放引起崩溃

来源：互联网发布：选数码产品软件编辑：程序博客网时间：2024/05/01 12:55

最近制作uiwebview显示网页，正常可以加载和显示。但是在查看uiwebview上的文章时，用手指放大缩小之后系统就崩溃。

在后台调试窗口看到内存一个一集警报。之后就显示数据格式有问题，程序被kill了。

于是将缩放的倍数进行一下设置，减小了缩放的等级。问题解决。

以下是示例代码

// 文字内容UIWebView *webView = [[UIWebView alloc] initWithFrame:CGRectMake(0, 0, self.frame.size.width, 50)];webView.delegate = self;//self.contentSize = CGSizeMake(self.contentSize.width, self.contentSize.height + 50);[webView setUserInteractionEnabled:NO];[webView setBackgroundColor:[UIColor clearColor]]; [webView setDelegate:self]; [webView setOpaque:NO];//使网页透明 NSString *htmlString1 = @"""<!DOCTYPE html PUBLIC '-//W3C//DTD HTML 4.01//EN' 'http://www.w3.org/TR/html4/strict.dtd'>""<html>""<head>""<mce:script type='text/javascript' charset='utf-8'></mce:script>""<mce:style type='text/css'></mce:style><style type='text/css' mce_bogus="1">";NSString *htmlString2 = @"p,h1,h2,h3{margin:0px;padding:0px} h3{font-weight:normal;font-size:14px;} p{line-height: 1.5;}""</style>""</head>""<body onload=/"document.location = 'myweb:touch:end';/">""<div id='content' style="-webkit-text-size-adjust:";NSString *htmlString3 = @"" mce_style="-webkit-text-size-adjust:";NSString *htmlString3 = @"" ongesturestart='sizeAdjustStart(event);' ongesturechange='sizeAdjust(event);'>""<p>";NSString *htmlString4 = @"""</p>""</div>""</body>""</html>";NSString *articlecontent;NSString *countstr=article.content;;NSString *countstrrep=[countstr stringByReplacingOccurrencesOfString:@"iponeauthor" withString:[[[NSString alloc] initWithFormat:@"%@",article.author] autorelease] ];NSString *countstrtitle=[countstrrep stringByReplacingOccurrencesOfString:@"iponetitle" withString:[[[NSString alloc] initWithFormat:@"%@",article.title] autorelease] ];articlecontent=[countstrtitle stringByReplacingOccurrencesOfString:@"iphonesourse" withString:[[[NSString alloc] initWithFormat:@"%@",article.source] autorelease] ];NSLog(@"articlecontent:%@",articlecontent);[webView loadHTMLString:[NSString stringWithFormat:@"%@%@%@%@%@%@%@", htmlString1, article.styleSheet, htmlString2, @"100%", htmlString3, articlecontent, htmlString4] baseURL:nil];//[self addSubview:webView];//创建UIActivityIndicatorView背底半透明View UIView *view1 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 480)]; [view1 setTag:103];[view1 setBackgroundColor:[UIColor blackColor]];[view1 setAlpha:0.8];[self addSubview:view1]; activityIndicator = [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 32.0f, 32.0f)];[activityIndicator setCenter:view1.center];[activityIndicator setActivityIndicatorViewStyle:UIActivityIndicatorViewStyleWhite]; [view1 addSubview:activityIndicator]; [self addSubview:webView]; [view1 release];[webView release]; self.contentSize = CGSizeMake(self.contentSize.width, webView.frame.size.height);