在UIWebview中添加一個gif視頻文件

Question

enter image description here在這裏輸入圖片描述，enter image description here。我在Objective-C的UIWbeview中添加了一個GIF圖像，問題是圖像尺寸不適合屏幕，並且沒有顯示gif視頻上方的內容。如何調整圖像大小並顯示上方的按鈕。

我的代碼是：

- (void)viewDidLoad { 
    [super viewDidLoad]; 

    NSString *filePath = [[NSBundle mainBundle] pathForResource:@"back" ofType:@"gif"]; 
    NSData *gif = [NSData dataWithContentsOfFile:filePath]; 

    UIWebView *webViewBG = [[UIWebView alloc] initWithFrame:self.view.frame]; 
    [webViewBG loadData:gif MIMEType:@"gif" textEncodingName:NULL baseURL:NULL]; 
    webViewBG.userInteractionEnabled = NO; 
    webViewBG.scalesPageToFit=YES; 
    [self.view addSubview:webViewBG]; 

    // Do any additional setup after loading the view. 
} 

Answer 1

您可以將代碼移到viewDidAppear

- (void)viewDidAppear:(BOOL)animated { 

    [super viewDidAppear:animated]; 

    NSString *filePath = [[NSBundle mainBundle] pathForResource:@"back" ofType:@"gif"]; 
    NSData *gif = [NSData dataWithContentsOfFile:filePath]; 

    UIWebView *webViewBG = [[UIWebView alloc] initWithFrame:self.view.frame]; 
    [webViewBG loadData:gif MIMEType:@"image/gif" textEncodingName:@"UTF-8" baseURL:NULL]; 
    webViewBG.userInteractionEnabled = NO; 
    webViewBG.scalesPageToFit=YES; 
    [self.view addSubview:webViewBG]; 
}