在应用开发中总要用到加载数据时候的loading动画效果 以下为一个loading效果实例,可以直接拿去用的:
在你的xxxController 头文件中声明: UIView *colorView;
UIActivityIndicatorView *aciv;
初始化中定义: aciv = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray]; colorView=[[UIView alloc]initWithFrame:CGRectMake(0, 0, screenWidth, screenHeight)];
[colorView setBackgroundColor:[UIColor colorWithRed:0.2 green:0.2 blue:0.2 alpha:0.4]];
加入以下方法:
- (void)addLoading{
aciv.activityIndicatorViewStyle=UIActivityIndicatorViewStyleWhite;
aciv.center=CGPointMake(screenWidth/2,screenHeight/2-10);
[self.view addSubview:colorView];
[aciv startAnimating];
[self.view addSubview:aciv];
}
- (void)removeLoading{
[colorView removeFromSuperview];
[aciv stopAnimating];
[aciv removeFromSuperview];
}
注释掉 //[self.view addSubview:colorView];
//[colorView removeFromSuperview];
则动画没有灰色背景 界面切换则可以有很多效果,如淡入淡出,放大,雾化,翻转等。 淡入淡出:
- (void)animateEaseInEaseOut:(CALayer*)laye delegate:(id)del{
CATransition *animationA = [CATransition animation];
[animationA setType:kCATransitionFade];
[animationA setDuration:1];
[animationA setDelegate:del];
[animationA setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]]; [laye addAnimation:animationA forKey:@"EaseInEaseOut"];
}
翻转:
- (void)animateFlipView{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:1];
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft forView:self.view cache:YES];
[UIView commitAnimations];
}