UIProgressView
, UILabel
, UIButton
및 UIActivityIndicator
과 같은 UI 요소를 추가하려고합니다. 코드가 정확하다고 생각 하긴하지만 배경을 제외하고는 아무 것도 보이지 않습니다. 내가 도대체 뭘 잘못하고있는 겁니까?사용자 정의 UIView에 UI 요소 추가하기
@interface LoadingView : UIView
@property (weak, nonatomic) IBOutlet UIActivityIndicatorView *activityIndicator;
@property (weak, nonatomic) IBOutlet UIProgressView *progressView;
@property (weak, nonatomic) IBOutlet UILabel *statusLabel;
@property (weak, nonatomic) IBOutlet UIButton *cancelButton;
- (void)removeLoadingView;
@end
@implementation LoadingView
@synthesize activityIndicator = _activityIndicator;
@synthesize progressView = _progressView;
@synthesize statusLabel = _statusLabel;
@synthesize cancelButton = _cancelButton;
- (UIView *)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
self.progressView = [[UIProgressView alloc] initWithFrame:CGRectMake(34, 225, 248, 9)];
self.statusLabel = [[UILabel alloc] initWithFrame:CGRectMake(36, 257, 248, 31)];
self.cancelButton = [[UIButton alloc] initWithFrame:CGRectMake(121, 317, 74, 37)];
// Create a new image view, from the image made by our gradient method
UIImageView *background = [[UIImageView alloc] initWithImage:[self addBackground]];
background.alpha = 0.8;
[self addSubview:background];
self.activityIndicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
// Set the resizing mask so it's not stretched
self.activityIndicator.autoresizingMask =
UIViewAutoresizingFlexibleTopMargin |
UIViewAutoresizingFlexibleRightMargin |
UIViewAutoresizingFlexibleBottomMargin |
UIViewAutoresizingFlexibleLeftMargin;
CGRect indicatorFrame = CGRectMake(142, 163, 37, 37);
[self.activityIndicator setFrame:indicatorFrame];
self.statusLabel.text = @"test 123";
self.statusLabel.hidden = NO;
self.statusLabel.enabled = YES;
self.statusLabel.textColor = [UIColor whiteColor];
[self addSubview:self.activityIndicator];
[self addSubview:self.progressView];
[self addSubview:self.cancelButton];
[self addSubview:self.statusLabel];
[self.activityIndicator startAnimating];
/* // Create a new animation
CATransition *animation = [CATransition animation];
// Set the type to a nice wee fade
[animation setType:kCATransitionFade];
// Add it to the superView
[[super layer] addAnimation:animation forKey:@"layerAnimation"];*/
}
return self;
}
- (UIImage *)addBackground{
// Create an image context (think of this as a canvas for our masterpiece) the same size as the view
UIGraphicsBeginImageContextWithOptions(self.bounds.size, YES, 1);
// Our gradient only has two locations - start and finish. More complex gradients might have more colours
size_t num_locations = 2;
// The location of the colors is at the start and end
CGFloat locations[2] = { 0.0, 1.0 };
// These are the colors! That's two RBGA values
CGFloat components[8] = {
0.4,0.4,0.4, 0.8,
0.1,0.1,0.1, 0.5 };
// Create a color space
CGColorSpaceRef myColorspace = CGColorSpaceCreateDeviceRGB();
// Create a gradient with the values we've set up
CGGradientRef myGradient = CGGradientCreateWithColorComponents (myColorspace, components, locations, num_locations);
// Set the radius to a nice size, 80% of the width. You can adjust this
float myRadius = (self.bounds.size.width*.8)/2;
// Now we draw the gradient into the context. Think painting onto the canvas
CGContextDrawRadialGradient (UIGraphicsGetCurrentContext(), myGradient, self.center, 0, self.center, myRadius, kCGGradientDrawsAfterEndLocation);
// Rip the 'canvas' into a UIImage object
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
// And release memory
CGColorSpaceRelease(myColorspace);
CGGradientRelease(myGradient);
UIGraphicsEndImageContext();
// … obvious.
return image;
}
편집 : 그래서 난 그냥 viewDidload
에 코드를 넣어 아무것도조차 배경, 지금은 표시되지 않습니다. 나는 또한 코드를 위의 코드와 동일한 결과로 layoutSubviews
에 시도했지만 백그라운드를 제외한 모든 것은 숨겨져 있습니다.
보기 컨트롤러에서이보기를 인스턴스화하는 데 사용하는 코드는 다음과 같습니다.
@property (nonatomic, strong) LoadingView *loadingView;
@synthesize loadingView = _loadingView;
- (LoadingView *)loadingView
{
if (!_loadingView) _loadingView = [[LoadingView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
return _loadingView;
}
- (void)viewDidLoad
{
[super viewDidLoad];
[self.view addSubview:self.loadingView];
}
d 코드를 보여줄 수 있습니까?이 mthd를 호출하고 서브 뷰에 추가하는 이유는 무엇입니까? – vishy
@vishy 코드를 게시했습니다. – Wasim
나는보기에 성공적으로 추가 된 동일한 코드를 시도했다 ..이 뷰 컨트롤러에 억세스/프리젠 테이션으로 접근하는 방법 ...왜냐하면 컨트롤러의 viewDidLoad가 호출되기 때문에 & push/present 다른 뷰 사이클 mthds가 호출 될 것이기 때문입니다. – vishy