使用IOS查詢頁面時間太長的時候，設計師們為了改善用戶體驗，最常用的方法之一是在查詢等待時添加動態等待效果，那么實現IOS等待時動畫效果的操作分解步驟大家都了解嗎？下面就讓武林技術頻道小編帶你一起來了解一下吧！
效果圖如下：
源代碼可以網上找開源項目Coding.net，上面的效果原理為兩張圖片組合，外面那個則為動畫轉動，里面的圖標則是透明度的變化；主要代碼如下：
1：把它封裝在EaseLoadingView里面
@interface EaseLoadingView : UIView@property (strong, nonatomic) UIImageView *loopView, *monkeyView;@property (assign, nonatomic, readonly) BOOL isLoading;- (void)startAnimating;- (void)stopAnimating;@end@interface EaseLoadingView ()@property (nonatomic, assign) CGFloat loopAngle, monkeyAlpha, angleStep, alphaStep;@end@implementation EaseLoadingView- (instancetype)initWithFrame:(CGRect)frame{ self = [super initWithFrame:frame]; if (self) { self.backgroundColor = [UIColor clearColor]; _loopView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"loading_loop"]]; _monkeyView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"loading_monkey"]]; [_loopView setCenter:self.center]; [_monkeyView setCenter:self.center]; [self addSubview:_loopView]; [self addSubview:_monkeyView]; [_loopView mas_makeConstraints:^(MASConstraintMaker *make) { make.center.equalTo(self); }]; [_monkeyView mas_makeConstraints:^(MASConstraintMaker *make) { make.center.equalTo(self); }]; _loopAngle = 0.0; _monkeyAlpha = 1.0; _angleStep = 360/3; _alphaStep = 1.0/3.0; } return self;}- (void)startAnimating{ self.hidden = NO; if (_isLoading) { return; } _isLoading = YES; [self loadingAnimation];}- (void)stopAnimating{ self.hidden = YES; _isLoading = NO;}- (void)loadingAnimation{ static CGFloat duration = 0.25f; _loopAngle += _angleStep; if (_monkeyAlpha >= 1.0 || _monkeyAlpha 注意loadingAnimation這里面有動作的處理及透明度的處理，當停止加載后把它自個從當前的視圖去除；
2：UIView (Common)在UIView擴展類里
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#pragma mark LoadingView@property (strong, nonatomic) EaseLoadingView *loadingView;- (void)beginLoading;- (void)endLoading;@end- (void)setLoadingView:(EaseLoadingView *)loadingView{ [self willChangeValueForKey:@"LoadingViewKey"]; objc_setAssociatedObject(self, &LoadingViewKey, loadingView, OBJC_ASSOCIATION_RETAIN_NONATOMIC); [self didChangeValueForKey:@"LoadingViewKey"];}- (EaseLoadingView *)loadingView{ return objc_getAssociatedObject(self, &LoadingViewKey);}- (void)beginLoading{ for (UIView *aView in [self.blankPageContainer subviews]) { if ([aView isKindOfClass:[EaseBlankPageView class]] && !aView.hidden) { return; } } if (!self.loadingView) { //初始化LoadingView self.loadingView = [[EaseLoadingView alloc] initWithFrame:self.bounds]; } [self addSubview:self.loadingView]; [self.loadingView mas_makeConstraints:^(MASConstraintMaker *make) { make.self.edges.equalTo(self); }]; [self.loadingView startAnimating];}- (void)endLoading{ if (self.loadingView) { [self.loadingView stopAnimating]; }}注意：cocoa的KVO模型中，有兩種通知觀察者的方式，自動通知和手動通知。顧名思義，自動通知由cocoa在屬性值變化時自動通知觀察者，而手動通知需要在值變化時調用 willChangeValueForKey:和didChangeValueForKey: 方法通知調用者。
3：使用頁面調用
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- (void)sendRequest{ [self.view beginLoading]; __weak typeof(self) weakSelf = self; [[Coding_NetAPIManager sharedManager] request_CodeFile:_myCodeFile withPro:_myProject andBlock:^(id data, NSError *error) { [weakSelf.view endLoading]; if (data) { weakSelf.myCodeFile = data; [weakSelf refreshCodeViewData]; } [weakSelf.view configBlankPage:EaseBlankPageTypeView hasData:(data != nil) hasError:(error != nil) reloadButtonBlock:^(id sender) { [weakSelf sendRequest]; }]; }];}其中[self.view beginLoading]跟[weakSelf.view endLoading]就可以調用動畫效果；
補充：另一種是有很多不同的圖片組成的動畫效果，可以用每一張圖片然后FOR遍歷組成出動作效果；
//設置普通狀態的動畫圖片 NSMutableArray *idleImages = [NSMutableArray array]; for (NSUInteger i = 1; i
上文是關于實現IOS等待時動畫效果的操作分解步驟的介紹，相信大家都有了一定的了解，想要了解更多的相關介紹，請繼續關注武林技術頻道網吧！
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