UIAlert 动画

If u want to present the view like the UIAlertView use this-

CAKeyframeAnimation *animation = [CAKeyframeAnimation animationWithKeyPath:@"transform"]; CATransform3D scale1 = CATransform3DMakeScale(0.5, 0.5, 1); CATransform3D scale2 = CATransform3DMakeScale(1.2, 1.2, 1); CATransform3D scale3 = CATransform3DMakeScale(0.9, 0.9, 1); CATransform3D scale4 = CATransform3DMakeScale(1.0, 1.0, 1); NSArray *frameValues = [NSArray arrayWithObjects: [NSValue valueWithCATransform3D:scale1], [NSValue valueWithCATransform3D:scale2], [NSValue valueWithCATransform3D:scale3], [NSValue valueWithCATransform3D:scale4], nil]; [animation setValues:frameValues];//Courtesy zoul.fleuron.cz NSArray *frameTimes = [NSArray arrayWithObjects: [NSNumber numberWithFloat:0.0], [NSNumber numberWithFloat:0.5], [NSNumber numberWithFloat:0.9], [NSNumber numberWithFloat:1.0], nil]; [animation setKeyTimes:frameTimes]; animation.fillMode = kCAFillModeForwards; animation.removedOnCompletion = NO; animation.duration = .2; [self.backColor SETCOLOUR HERE]; [self.layer addAnimation:animation forKey:@"uialertViewPopUP"];

U can over ride the willMoveToSuperView method with the code given above.