iOS视图弹出、平移、旋转、翻转、剪切等变换效果实现

效果图：

1、定义属性

@property (nonatomic, strong) UIView        *transformView;//发生变换的试图

@property (nonatomic, strong) UIView        *backGroundView;//发生变换试图的父试图

@property (nonatomic, strong) UITableView   *titleTableView;

@property (nonatomic, strong) NSArray       *dataSourceAry;//数据源数组

　　

2、实现代码

-(void)poppingViewWithTransform:(NSString *)transformStr{

    [self.view addSubview:self.backGroundView];

    self.transformView.frame = CGRectMake(SCWidth/2-100, 200, 200, 200);

    if ([transformStr isEqualToString:@"缩放变换"]) {
         //很简单的变换效果，200，为Y轴从下往上平移，相反-200 是从上往下平移
        self.transformView.transform = CGAffineTransformMakeScale(0.0, 0.0);
        [UIView animateWithDuration:0.5 animations:^{
            self.transformView.transform = CGAffineTransformMakeScale(1.0, 1.0);

        }];

    }else if([transformStr isEqualToString:@"平移变换"]){
        //很简单的变换效果，200，为Y轴从下往上平移，相反-200 是从上往下平移，X轴变换同理
        self.transformView.transform = CGAffineTransformMakeTranslation(0, -200);
        [UIView animateWithDuration:0.5 animations:^{
            self.transformView.transform = CGAffineTransformMakeTranslation(0,0);
        }];
    }else if([transformStr isEqualToString:@"翻转变换"]){
        //下面注释的代码，最后Z轴改成一个数字，例12，可以实现旋转变换
        //self.transformView.layer.transform = CATransform3DMakeRotation(12, 1, 1, 0);
        self.transformView.layer.transform =  [self firstStep];

        [UIView animateWithDuration:0.5 animations:^{
            self.transformView.layer.transform = CATransform3DMakeRotation(0, 1, 0, 0);
        }];
    }else if([transformStr isEqualToString:@"旋转变换"]){
        //具体效果可以更改 M_PI_4 角度来实现
        self.transformView.transform = CGAffineTransformMake(( cos(M_PI_4) ), ( sin(M_PI_4) ), -( sin(M_PI_4) ), (cos(M_PI_4) ), 0, 0);
        [UIView animateWithDuration:0.5 animations:^{
            self.transformView.transform = CGAffineTransformMake(( cos(M_PI) ), ( sin(M_PI) ), -( sin(M_PI) ), (cos(M_PI) ), 0, 0);
        }];
    }else if([transformStr isEqualToString:@"剪切变换"]){
        //使用仿射基础方法CGAffineTransformMake,设置x和y都为0.5的斜切
        //可以试着把第一个1换成0.5，看看效果
        //可以试着把第二个1换成0.5，看看效果
        self.transformView.transform =  CGAffineTransformMake(1,0.5,0.5,1,0,0);
        [UIView animateWithDuration:0.5 animations:^{
            self.transformView.transform = CGAffineTransformMake(1,0,0,1,0,0);
        }];
    }

    self.transformView.layer.cornerRadius = 7;
    self.transformView.layer.masksToBounds = YES;
    [self.backGroundView addSubview:self.transformView];
」

　　

其中，翻转变化用到这个：

-(CATransform3D)firstStep{
    //让transform1为单位矩阵
    CATransform3D transform1 = CATransform3DIdentity;
    //z轴纵深的3D效果和CATransform3DRotate配合使用才能看出效果
    //m34很重要
    transform1.m34 = 1.0/-100;
    //x和y都缩小为原来的0.9，z不变
    transform1 = CATransform3DScale(transform1, 0.9, 0.9, 1);
    //绕x轴向内旋转15度
    transform1 = CATransform3DRotate(transform1,15.0f * M_PI/180.0f, 1, 0, 0);
    return transform1;
}