我在同一屏幕中有一个 UIWebView 和一个滑动手势。当我滑动时，我会重新加载 webview，因为如果不这样做，就不会调用 js。
重新加载只能进行一次，我无法再次滑动。
当我删除[self.webview reload]时，滑动效果很好，但 UIWebView 一直闪烁。每次都会跳起来!
每次滑动都需要调用js。
我尝试过这些:
方法一:
when loading webview:
self.webview.alpha = 0;
- (void)webViewDidFinishLoad:(UIWebView *)webView {
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.30];
self.webview.alpha = 1;
[UIView commitAnimations];
}
方法2:
- (void)webViewDidFinishLoad:(UIWebView *)webView {
[self.webview setOpaque:NO];
self.webview.backgroundColor = [UIColor clearColor];
}
方法3:
- (void)viewDidLoad {
[super viewDidLoad];
[self.webview loadHTMLString:@"<html><body style=\"background-color:black;\"></body></html>" baseURL:nil];
[self performSelector:@selector(loadWebview) withObject:nil afterDelay:0.1];
}
-(void)loadWebview {
self.webview.delegate = self;
self.webview.scrollView.delegate = self;
self.webview.scrollView.bounces = NO;
self.webview.scrollView.scrollsToTop = NO;
[self.view addSubview:self.webview];
pathToHtml = [[NSBundle mainBundle] pathForResource:@"mypath" ofType:@"html"];
NSString* appHtml = [NSString stringWithContentsOfFile:pathToHtml encoding:NSUTF8StringEncoding error:nil];
NSURL *baseURL = [NSURL fileURLWithPath:pathToHtml];
[self.webview loadHTMLString:appHtml baseURL:baseURL];
}
需要帮助!
最佳答案
我发现我的webViewDidFinishLoad中有这个:
//Make the page fit to view. THIS IS BAD
CGRect webviewBound = self. webview.bounds;
webviewBound.size.height = self. webview.scrollView.contentSize.height;
self. webview.bounds = webviewBound;
所以我删除了它并添加了:
[self.webview.scrollView setContentSize: CGSizeMake(self.webview.frame.size.width, self.webview.scrollView.contentSize.height)];
self.webview.scrollView.delegate = self;
我在 viewDidLoad 中添加了这个，因为我有灰色背景:
//Removes the shadow from the webview i.e., "grey background"
if ([[self.webview subviews] count] > 0)
{
for (UIView* shadowView in [[[self.webview subviews] objectAtIndex:0] subviews])
{
[shadowView setHidden:YES];
}
// unhide the last view so it is visible again because it has the content
[[[[[self.webview subviews] objectAtIndex:0] subviews] lastObject] setHidden:NO];
}
关于javascript - iOS UIWebView 闪烁问题，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/39657649/