的UIImageView動畫顯示不

Question

進出口使用以下代碼來

UIImage* img1 = [UIImage imageNamed:@"1.gif"]; 
UIImage* img2 = [UIImage imageNamed:@"2.gif"]; 
UIImage* img3 = [UIImage imageNamed:@"3.gif"]; 
UIImage* img4 = [UIImage imageNamed:@"4.gif"]; 



UIView *loadingView = [[UIView alloc] initWithFrame:CGRectMake(self.view.frame.size.width/4, self.view.frame.size.height/4, 170, 170)]; 
UIImageView *imgView = [[UIImageView alloc] initWithFrame:CGRectMake(65, 40, loadingView.bounds.size.width, loadingView.bounds.size.height)]; 
loadingView.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0.5]; 
loadingView.clipsToBounds = YES; 
loadingView.layer.cornerRadius = 10.0; 
loadingView.center = self.view.center; 
imgView.backgroundColor = [UIColor clearColor]; 
imgView.center = loadingView.center; 
imgView.animationImages = @[img1, img2, img3, img4]; 
imgView.animationDuration = 1.0*1.0; 
[loadingView addSubview: imgView]; 
[self.view addSubview:loadingView]; 
[imgView startAnimating]; 

1. 我已經定義了四個uiimages最初
2. 的視圖中居中的圖像I所定義的loadingview，我已經它爲中心，以屏幕
3. 我已經定義了一個imageview，我已經將它集中到加載視圖。
4. 我已添加的ImageView是loadingView的子視圖和我已經加入裝載視圖到view.Then IM動畫化的ImageView

的問題是沒有被示出的imaeview當我運行這碼。我怎樣才能解決這個問題？

Answer 1

你好這裏是代碼

UIImage* img1 = [UIImage imageNamed:@"1.gif"]; 
UIImage* img2 = [UIImage imageNamed:@"2.gif"]; 

UIView *loadingView = [[UIView alloc] initWithFrame:CGRectMake(self.view.frame.size.width/4, self.view.frame.size.height/4, 170, 170)]; 
UIImageView *imgView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 170, 170)]; 
loadingView.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0.5]; 
loadingView.clipsToBounds = YES; 
loadingView.layer.cornerRadius = 10.0; 
loadingView.center = self.view.center; 
imgView.backgroundColor = [UIColor clearColor]; 
imgView.animationImages = @[img1, img2]; 
imgView.animationDuration = 1.0*1.0; 
[loadingView addSubview: imgView]; 
[imgView startAnimating]; 
[self.view addSubview:loadingView];