视图缩放、移动、旋转--ios

  
    UIView *view=[[UIView alloc] initWithFrame:CGRectMake(50, 50, 100, 100)];
    view.backgroundColor=[UIColor redColor];
    view.tag=10;
    [self.window addSubview:view];
    
    UIButton *button=[UIButton buttonWithType:UIButtonTypeRoundedRect];
    button.frame=CGRectMake(200, 200, 50, 50);
    [button setTitle:@"改变" forState:UIControlStateNormal];
    [button addTarget:self action:@selector(changeViewScale) forControlEvents:UIControlEventTouchUpInside];
    [self.window addSubview:button];
    
    UIButton *translateButton=[UIButton buttonWithType:UIButtonTypeSystem];
    translateButton.frame=CGRectMake(50,200, 50, 50);
    [translateButton setTitle:@"移动" forState:UIControlStateNormal];
    [translateButton addTarget:self action:@selector(changeViewTransalte) forControlEvents:UIControlEventTouchUpInside];
    [self.window addSubview:translateButton];
    
    UIButton *rotateButton=[UIButton buttonWithType:UIButtonTypeRoundedRect];
    rotateButton.frame=CGRectMake(100, 200, 50, 50);
    [rotateButton setTitle:@"旋转" forState:UIControlStateNormal];
    [rotateButton addTarget:self action:@selector(changeViewRotate) forControlEvents:UIControlEventTouchUpInside];
    [self.window addSubview:rotateButton];
    
     [self.window makeKeyAndVisible];

-(void) changeViewScale{
    UIView *view =[self.window viewWithTag:10];
    view.transform=CGAffineTransformScale(view.transform, 0.8, 0.8);
}
-(void) changeViewTransalte{
    UIView *view=[self.window viewWithTag:10];
    view.transform=CGAffineTransformTranslate(view.transform, 10,0);
}
-(void) changeViewRotate{
    UIView   *view=[self.window viewWithTag:10];
    view.transform=CGAffineTransformRotate(view.transform, 0.33);
}