iOS常用的幾個動畫代碼

使用前


    需引入QuartzCore.framework, 并在相關文件中加入 #import "QuartzCore/QuartzCore.h"


定義

     shakeFeedbackOverlay為UIImageView


設置

     self.shakeFeedbackOverlay.alpha = 0.0;

     self.shakeFeedbackOverlay.layer.cornerRadius = 10.0; //設置圓角半徑


1、圖像左右抖動

CABasicAnimation* shake = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];

shake.fromValue = [NSNumber numberWithFloat:-M_PI/32];

shake.toValue = [NSNumber numberWithFloat:+M_PI/32];

shake.duration = 0.1;

shake.autoreverses = YES; //是否重復

shake.repeatCount = 4;

[self.shakeFeedbackOverlay.layer addAnimation:shake forKey:@"shakeAnimation"];

self.shakeFeedbackOverlay.alpha = 1.0;

[UIView animateWithDuration:2.0 delay:0.0 options:UIViewAnimationOptionCurveEaseIn | UIViewAnimationOptionAllowUserInteraction animations:^{ self.shakeFeedbackOverlay.alpha = 0.0; //透明度變0則消失 } completion:nil];


2、圖像順時針旋轉

CABasicAnimation* shake = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];

shake.fromValue = [NSNumber numberWithFloat:0];

shake.toValue = [NSNumber numberWithFloat:2*M_PI];

shake.duration = 0.8; shake.autoreverses = NO;

shake.repeatCount = 1;

[self.shakeFeedbackOverlay.layer addAnimation:shake forKey:@"shakeAnimation"];

self.shakeFeedbackOverlay.alpha = 1.0;

[UIView animateWithDuration:10.0 delay:0.0 options:UIViewAnimationOptionCurveEaseIn | UIViewAnimationOptionAllowUserInteraction animations:^{ self.shakeFeedbackOverlay.alpha = 0.0; } completion:nil];


3、圖像關鍵幀動畫

CAKeyframeAnimation *animation = [CAKeyframeAnimation animation];

CGMutablePathRef aPath = CGPathCreateMutable();

CGPathMoveToPoint(aPath, nil, 20, 20);

CGPathAddCurveToPoint(aPath, nil, 160, 30, 220, 220, 240, 420);

animation.path = aPath;

animation.autoreverses = YES;

animation.duration = 2;

animation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut];

animation.rotationMode = @"auto";

[ballView.layer addAnimation:animation forKey:@"position"];


4、組合動畫 CAAnimationGroup

CABasicAnimation *flip = [CABasicAnimation animationWithKeyPath:@"transform.rotation.y"];

flip.toValue = [NSNumbernumberWithDouble:-M_PI];

CABasicAnimation *scale= [CABasicAnimation animationWithKeyPath:@"transform.scale"];

scale.toValue = [NSNumbernumberWithDouble:12];

scale.duration = 1.5;

scale.autoreverses = YES;

CAAnimationGroup *group = [CAAnimationGroup animation];

group.animations = [NSArray arrayWithObjects:flip, scale, nil];

group.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];

group.duration = 3;

group.fillMode = kCAFillModeForwards;

group.removedOnCompletion = NO;

[ballView.layer addAnimation:group forKey:@"position"];


5、指定時間內旋轉圖片
//啟動定時器旋轉光圈

(void)startRotate

{

self.rotateTimer = [NSTimer scheduledTimerWithTimeInterval:0.02

                                              target:self

                                            selector:@selector(rotateGraduation)

                                            userInfo:nil

                                             repeats:YES];


}
//關閉定時器

(void)stopTimer

{

if ([self.rotateTimerisValid])


{

    [self.rotateTimerinvalidate];

    self.rotateTimer = nil;

}


}
//旋轉動畫

(void)rotateGraduation

{

self.timeCount--;

if (self.timeCount == 0)

{

    [self stopTimer];

    // doSomeThing //旋轉完畢 可以干點別的

    self.timeCount = 25;

}

else

{

    //計算角度 旋轉

    static CGFloat radian = 150 * (M_2_PI / 360);

    CGAffineTransform transformTmp = self.lightImageView.transform;

    transformTmp = CGAffineTransformRotate(transformTmp, radian);

    self.lightImageView.transform = transformTmp;

};


}
調用方法
self.timeCount = 25; //動畫執行25次
[self startRotate];</pre>