点击某个按钮时候，晃动控件

在开发中，会遇到当输入框为空，但是用户提交信息的时候，这时候我们要给用户一个抖动提示用户。以下为方法：

if([self.searchTf.textisEqualToString:@""] ) {

[MBProgressHUDshowMessage:@"请输入搜索内容!"];

[selfloadShakeAnimationForView:self.searchTf];

}

//抖动方法

-(void)loadShakeAnimationForView:(UIView*)view

{

CALayer*lbl = [viewlayer];

CGPointposLbl = [lblposition];

CGPointy =CGPointMake(posLbl.x-10, posLbl.y);

CGPointx =CGPointMake(posLbl.x+10, posLbl.y);

CABasicAnimation* animation = [CABasicAnimationanimationWithKeyPath:@"position"];

[animationsetTimingFunction:[CAMediaTimingFunction

functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];

[animationsetFromValue:[NSValuevalueWithCGPoint:x]];

[animationsetToValue:[NSValuevalueWithCGPoint:y]];

[animationsetAutoreverses:YES];

[animationsetDuration:0.08];

[animationsetRepeatCount:3];

[lbladdAnimation:animationforKey:nil];

}

参考

http://blog.csdn.net/ios_dashen/article/details/50515464