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#import "ViewController.h"
@interface ViewController ()
@property (weak, nonatomic) IBOutletUIImageView *imageV;
@end
@implementation ViewController
- (void)viewDidLoad {
[superviewDidLoad];
}
- (IBAction)moveUp:(id)sender {
//平移
[UIView animateWithDuration:0.5animations:^{
//使用Make,它是相对于最原始的位置做的形变.
//self.imageV.transform = CGAffineTransformMakeTranslation(0, -100);
//相对于上一次做形变.
self.imageV.transform = CGAffineTransformTranslate(self.imageV.transform,0, -100);
}];
}
- (IBAction)moveDown:(id)sender {
//平移
[UIView animateWithDuration:0.5animations:^{
//使用Make,它是相对于最原始的位置做的形变.
//self.imageV.transform = CGAffineTransformMakeTranslation(0, -100);
//相对于上一次做形变.
self.imageV.transform = CGAffineTransformTranslate(self.imageV.transform,0,100);
}];
}
- (IBAction)rotation:(id)sender {
[UIViewanimateWithDuration:0.5animations:^{
//旋转(旋转的度数, 是一个弧度)
//self.imageV.transform = CGAffineTransformMakeRotation(M_PI_4);
self.imageV.transform = CGAffineTransformRotate(self.imageV.transform,M_PI_4);
}];
}
- (IBAction)scale:(id)sender {
[UIView animateWithDuration:0.5animations:^{
//缩放
//self.imageV.transform = CGAffineTransformMakeScale(0.5, 0.5);
self.imageV.transform = CGAffineTransformScale(self.imageV.transform,0.8,0.8);
}];
}
@end
#import "RedView.h"
@implementation RedView
//当开始触摸屏幕的时候调用
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
NSLog(@"%s",__func__);
}
//触摸时开始移动时调用(移动时会持续调用)
//NSSet:无序
//NSArray:有序
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{
//NSLog(@"%s",__func__);
//做UIView拖拽
UITouch *touch = [touches anyObject];
//求偏移量 = 手指当前点的X - 手指上一个点的X
CGPoint curP = [touch locationInView:self];
CGPoint preP = [touchpreviousLocationInView:self];
NSLog(@"curP====%@",NSStringFromCGPoint(curP));
NSLog(@"preP====%@",NSStringFromCGPoint(preP));
CGFloat offsetX = curP.x - preP.x;
CGFloat offsetY = curP.y - preP.y;
//平移
self.transform =CGAffineTransformTranslate(self.transform, offsetX, offsetY);
}
//当手指离开屏幕时调用
-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{
NSLog(@"%s",__func__);
}
//当发生系统事件时就会调用该方法(电话打入,自动关机)
-(void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event{
NSLog(@"%s",__func__);
}
@end
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