在開發(fā)中，會(huì)遇到當(dāng)輸入框?yàn)榭?，但是用戶提交信息的時(shí)候，這時(shí)候我們要給用戶一個(gè)抖動(dòng)提示用戶。以下為方法：

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

[MBProgressHUDshowMessage:@"請(qǐng)輸入搜索內(nèi)容!"];

[selfloadShakeAnimationForView:self.searchTf];

}

//抖動(dòng)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];

}

參考

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