TableView上的HeaderView放WebView
滑动起来没有一丝卡顿现象亲测
{
UIView *view;
UIImageView *image;
CGFloat webViewHeight;
}
- (void)viewDidLoad {
[super viewDidLoad];
self.table=[[UITableView alloc]initWithFrame:CGRectMake(0,CGRectGetMaxY(self.webView.frame),kScreenWidth,kScreenHeight-self.tabBarController.tabBar.frame.size.height)];
self.table.delegate=self;
self.table.dataSource=self;
self.table.separatorStyle=UITableViewCellSelectionStyleNone;
[self.view addSubview:self.table];
view= [[UIView alloc]initWithFrame:CGRectMake(0,0,kScreenWidth,kScreenHeight)];
self.table.tableHeaderView=view;
_webView= [[UIWebView alloc]initWithFrame:CGRectMake(0,0,kScreenWidth,kScreenHeight)];
[_webView setScalesPageToFit:YES];//大小自适应
_webView.scrollView.scrollEnabled=NO;
[self.webViewloadRequest:[[NSURLRequest alloc]initWithURL:[NSURLURLWithString:@"你的URL"]]];
[view addSubview:_webView];
_webView.delegate=self;
_webView.scrollView.delegate=self;
[_webView.scrollViewaddObserver:self forKeyPath:@"contentSize"options:NSKeyValueObservingOptionNew context:nil];
}
- (void)observeValueForKeyPath:(NSString*)keyPath ofObject:(id)object change:(NSDictionary*)change context:(void*)context
{
if([keyPath isEqualToString:@"contentSize"]) {
webViewHeight= [[_webView stringByEvaluatingJavaScriptFromString:@"document.body.scrollHeight"] floatValue];
CGRect newFrame=_webView.frame;
newFrame.size.height=webViewHeight;
_webView.frame= newFrame;
[_webView sizeToFit];
CGRectFrame =view.frame;
Frame.size.height= Frame.size.height+_webView.frame.size.height;
view.frame= newFrame;
[self.table setTableHeaderView:view];//这句话才是重点
}
}
- (void)webViewDidFinishLoad:(UIWebView*)webView
{
CGFloat sizeHeight = [[webView stringByEvaluatingJavaScriptFromString:@"document.body.scrollHeight"]floatValue];
self.webView.frame=CGRectMake(0,0,kScreenWidth, sizeHeight);
stro.contentSize=CGSizeMake(kScreenWidth, sizeHeight+1);
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
}
#pragma mark返回每组行数
-(NSInteger)tableView:(UITableView*)tableView numberOfRowsInSection:(NSInteger)section{
return5;
}
#pragma mark返回每行的单元格
-(UITableViewCell*)tableView:(UITableView*)tableView cellForRowAtIndexPath:(NSIndexPath*)indexPath{
staticNSString*CellIdentifier =@"Cell";
UITableViewCell*cell = [UITableViewCell dequeueReusableCellWithIdentifier:CellIdentifier];
if(!cell) {
cell = [[commentsTableViewCellalloc]initWithStyle:UITableViewCellStyleDefaultreuseIdentifier:CellIdentifierIndexPa:indexPath];
}
returncell;
}
#pragma mark返回每行高度
- (CGFloat)tableView:(UITableView*)tableView heightForRowAtIndexPath:(NSIndexPath*)indexPath
{
return150;
}
