IOS學習筆記（三）UIView animation

iphone中動畫的實現主要分為兩種，UIView動畫 和Core Animation動畫

UIView動畫主要可以實現的效果包括：

1.frame,bounds,center//改變View的frame屬性

-(void)doChangeFrame
{
//{
//    [UIView beginAnimations:nil context:nil];
//    [UIView setAnimationDuration:2];
//    [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
//    [UIView setAnimationDelegate:self];
//    [UIView setAnimationDidStopSelector:@selector(stopDelegate)];
//    smallImage.frame = CGRectMake(150, 80, 30, 30);
//    
//    //smallImage.alpha = 0;
//    [UIView commitAnimations];
    
    [UIView animateWithDuration:2.0 animations:^(void){smallImage.frame = CGRectMake(150, 80, 30, 30);} completion:^(BOOL finished) {
        smallImage.alpha = 0;
    }];
//塊語句定義及使用方法
   /*int (^myBlock )(int num) = ^(int num)
    {
        return num*2;
    };
    NSLog(@"%d",myBlock(7));*/
}

 

2.alpha //改變透明度

3.backgroundColor //改變背景顏色

4.contentStretch //拉伸變化

5.transform //仿射變換，其中又包括Rotate，Invert，Translate，Scale（旋轉，反轉，位移，縮放）

-(void)doRotate//旋轉
{
    CGAffineTransform transform=         CGAffineTransformMakeRotation(M_PI/4);
    
    [UIView beginAnimations:nil context:nil];
    bigImage.transform = transform;
    [UIView commitAnimations];
}

-(void)doInvert//反轉
{
    BOOL isSingle = seg.selectedSegmentIndex;
    //如果單次 直接翻轉到原始狀態 如果連續 在以前基礎上再次進行反轉
    
    CGAffineTransform transform = isSingle?CGAffineTransformInvert(bigImage.transform):CGAffineTransformIdentity;
    
    [UIView beginAnimations:nil context:nil];
    bigImage.transform = transform;
    [UIView commitAnimations];
}

-(void)doTranslate//位移
{
    BOOL isSingle = seg.selectedSegmentIndex;
    //如果單次 只改變一次 如果連續 在以前基礎上再次進行移位
    CGAffineTransform transform = isSingle?CGAffineTransformMakeTranslation(10, 10):CGAffineTransformTranslate(bigImage.transform, 10, 10);
    
//    [UIView beginAnimations:nil context:nil];
//    bigImage.transform = transform;
//    [UIView commitAnimations];
    [UIView animateWithDuration:1 animations:^{
      bigImage.transform = transform;
    }];
}

-(void)doScale//縮放
{
    BOOL isSingle = seg.selectedSegmentIndex;
    //如果單次 只改變一次 如果連續 在以前基礎上再次進行縮放
    CGAffineTransform transform = isSingle?CGAffineTransformMakeScale(1.0, 1.1):CGAffineTransformScale(bigImage.transform, 1.0, 1.1);
    
    [UIView beginAnimations:nil context:nil];
    bigImage.transform = transform;
    [UIView commitAnimations];

}