ios 自定义加载动画效果
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2022-04-21 15:49:32
在开发过程中,可能会遇到各种不同的场景需要等待加载成功后才能显示数据。以下是自定义的一个动画加载view效果。 在UIViewController的中加载等到效果,如下 BIDActivityNote.m 代码实现效果: ......
在开发过程中,可能会遇到各种不同的场景需要等待加载成功后才能显示数据。以下是自定义的一个动画加载view效果。
在UIViewController的中加载等到效果,如下
- (void)viewDidLoad { [super viewDidLoad]; //将view背景颜色变更为黄色 self.view.backgroundColor = [UIColor yellowColor]; //在self.view上加载提示框 [[BIDActivityNote sharedInstance] AddActivityView:self.view]; //延时3分钟后移除提示框 dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(3 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{ [[BIDActivityNote sharedInstance] RemoveActivityView]; }); }
BIDActivityNote.h 实现代码
// // BIDActivityNote.h // MobileShop // // Created by eJiupi on 15-7-23. // Copyright (c) 2014年 xujinzhong. All rights reserved. // #import <Foundation/Foundation.h> @interface BIDActivityNote : NSObject + (BIDActivityNote*)sharedInstance; - (void)AddActivityView:(UIView*)subView; - (void)RemoveActivityView; @end
BIDActivityNote.m 代码实现效果:
// // BIDActivityNote.m // MobileShop // // Created by eJiupi on 15-7-23. // Copyright (c) 2014年 xujinzhong. All rights reserved. // #import "BIDActivityNote.h" @interface BIDActivityNote () @property (strong, nonatomic) UIView *subView; @property (strong, nonatomic) UIActivityIndicatorView *act; @end @implementation BIDActivityNote + (BIDActivityNote*)sharedInstance { static BIDActivityNote* instance = nil; if (instance == nil) { instance = [[BIDActivityNote alloc] init]; } return instance; } - (id)init { self = [super init]; if (self) { NSInteger w = [UIScreen mainScreen].bounds.size.width; NSInteger h = [UIScreen mainScreen].bounds.size.height; self.subView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, w, h)]; self.subView.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0.5]; self.act = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge]; //只能设置中心,不能设置大小 self.act.center = CGPointMake(w/2.f, h/2.f); //设置活动指示器的颜色 self.act.color=[UIColor whiteColor]; [self.act startAnimating]; // 开始旋转 [self.act stopAnimating]; // 结束旋转 //[self.act setHidesWhenStopped:YES]; //当旋转结束时隐藏 [self.subView addSubview:self.act]; } return self; } - (void)AddActivityView:(UIView*)subView { //启动 [self.act startAnimating]; [subView addSubview:self.subView]; //实现动画效果 self.subView.transform = CGAffineTransformScale(self.subView.transform, 0, 0); [UIView animateWithDuration:2 animations:^{ self.subView.transform = CGAffineTransformIdentity; }]; } - (void)RemoveActivityView { [UIView animateWithDuration:0.7 animations:^{ self.subView.transform = CGAffineTransformScale(self.subView.transform, 0, 0); } completion:^(BOOL bfinished){ if (bfinished) { //停止 [self.act stopAnimating]; [self.subView removeFromSuperview]; } }]; } @end
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