@interface smashEffect : UIView; /**
- 还原方法 */
- (void)restore; /**
- 打碎方法 */
- (void)smash; /**
- @param frame frame
- @param image 需要打碎的图片 */ -(instancetype)initWithFrame:(CGRect)frame Image:(UIImage *)image; @end
#import "smashEffect.h" @interface smashEffect ()
@end @implementation smashEffect -(instancetype)initWithFrame:(CGRect)frame Image:(UIImage )image { if (self = [super init]) { self.frame = frame; CGFloat ratio = 0.1; for (int i = 0; i < 100; i++) { UIImageView imageView = [[UIImageView alloc] init]; imageView.backgroundColor = [UIColor redColor]; imageView.image = image; NSInteger column = i % 10; // 列 NSInteger row = i / 10; // 行 //层内容的可视区域 imageView.layer.contentsRect = CGRectMake(ratiocolumn, rowratio, ratio, ratio); imageView.frame = CGRectMake(self.frame.size.widthratiocolumn, row*(self.frame.size.heightratio), self.frame.size.widthratio, self.frame.size.height*ratio); [self addSubview:imageView]; } } return self; } // 打碎
- (void)smash { [UIView animateWithDuration:1 animations:^{ [self.subviews enumerateObjectsUsingBlock:^(__kindof UIView * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) { UIImageView *imageView = obj; imageView.layer.transform = [self configTransform3DWithRotateAngle:[self getRandomNumber:0 to:360] andPositionX:[self getRandomNumber:0 to:100] andPositionY:[self getRandomNumber:0 to:100]]; }]; }];
} //还原
- (void)restore { [UIView animateWithDuration:1 animations:^{ [self.subviews enumerateObjectsUsingBlock:^(__kindof UIView * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) { UIImageView imageView = obj; imageView.layer.transform = CATransform3DIdentity; }]; }]; } /*
- 传进一个角度，x坐标，y坐标
- @param angle 角度
- @param x x坐标
- @param y y坐标
- @return transform属性 */
- (CATransform3D)configTransform3DWithRotateAngle:(double)angle andPositionX:(double)x andPositionY:(double)y { CATransform3D transform = CATransform3DIdentity; // iOS的三维透视投影 实现view（layer）的透视效果（就是近大远小），是通过设置m34的参考：http://blog.csdn.net/dreamjuvenile/article/details/51898444 // transform.m34 = 1/0; /* 旋转 CATransform3DRotate (CATransform3D t, CGFloat angle,CGFloat x, CGFloat y, CGFloat z) angle旋转弧度：角度 * M_PI / 180， x值范围-1 --- 1之间 正数表示左侧看向外旋转，负数表示向里CATransform3DRotate(transform, M_PIangle/180, 1, 0, 0） y值范围-1 --- 1之间 正数左侧看表示向外旋转，负数表示向里CATransform3DRotate(transform, M_PIangle/180, 0, 1, 0） 同时设置x，y表示沿着对角线翻转 CATransform3DRotate(transform, M_PIangle/180, 1, 1, 0） z值范围-1 --- 1之间 正数逆时针旋转，负数表示顺CATransform3DRotate(transform, M_PIangle/180, 0, 0, -1） 同时设置x,y,z按照设定的数值进行旋转 CATransform3D rotateTransform = CATransform3DRotate(transform, M_PI*angle/180, 1, 1, 1); / CATransform3D rotateTransform = CATransform3DRotate(transform, M_PIangle/180, 1, 1, 1); // 移动 CATransform3D moveanim = CATransform3DMakeTranslation(x, y, 0); // 合并 CATransform3D concatTransform = CATransform3DConcat(rotateTransform, moveanim); return concatTransform; } /**
- 获取范围随机数
- @param from 最小
- @param to 最大
- @return 返回一个from到to之间的一个随机值 */ -(CGFloat)getRandomNumber:(int)from to:(int)to { return (from+ 1 + (arc4random() % (to - from + 1))); } @end