UIView

   //1.UIView创建和使用

    //  重要性:

    //  (1) 常见控件父类或间接父类都是UIView

    //UILabel->UIView

    //UIImageView->UIView

    //UIButton->UIControl->UIView

    //  (2)自定义控件

    //  继承与UIView, view加上其他控件

    //  (3)使用UIView作为界面布局, UIView作为其他控件的容器

    //理解:显示一块矩形区域

    UIView *view1 = [[UIViewalloc] init];

    view1.frame =CGRectMake(100, 100, 100, 100);

    view1.backgroundColor = [UIColorredColor];

    [self.viewaddSubview:view1];

    

    //2.常用属性

    //位置

    //view1.frame

    //只改大小,不改位置

    view1.bounds =CGRectMake(0, 0, 50, 50);

    view1.backgroundColor = [UIColoryellowColor];

    

    //使用tag区分不同控件

    //view1.tag = 100;

    

    //设置中心点位置

    view1.center =CGPointMake(50, 50);

    

    //是否打开用户交互

    //UILabel和UIImageView控件这个值是NO

    //  按钮加入到UIImageView没有反应

    view1.userInteractionEnabled =YES;

    

    //view设置圆角

    view1.layer.cornerRadius = 10;

    view1.clipsToBounds =YES;

    

    //是否隐藏

    view1.hidden =YES;

    view1.hidden =NO;

    

    //透明度

    view1.alpha = 0.7;

    

    //3.常用方法

    //view1 addSubview:<#(UIView *)#>

    //界面上移除控件

    //[view1 removeFromSuperview];

    

    //视图层级关系方法

    view1.frame =CGRectMake(100, 100, 100, 100);

    

    UIView *view2 = [[UIViewalloc] initWithFrame:CGRectMake(150, 150, 100, 100)];

    view2.backgroundColor = [UIColorblueColor];

    [self.viewaddSubview:view2];

    

    //放到最前面

    [self.viewbringSubviewToFront:view1];

    

    //最后面

    [self.viewsendSubviewToBack:view1];

    

    //插入视图

    UIView *view3 = [[UIViewalloc] initWithFrame:CGRectMake(125, 125, 100, 100)];

    view3.backgroundColor = [UIColorgreenColor];

    //[self.view addSubview:view3];

    [self.viewinsertSubview:view3 belowSubview:view2];

    

    //属性

    //所有子视图

    //self.view.subviews

    

    //父视图

    //self.view.superview

    

    //4.使用UIView进行控件自定义和界面布局

    //  view+2个label+一个图片

    //原理:只是原理展示, 控件定制需要继承

    UIView *photoView = [[UIViewalloc] initWithFrame:CGRectMake(0, 300, 320, 100)];

    photoView.backgroundColor = [UIColorlightGrayColor];

    [self.viewaddSubview:photoView];

    

    //头像

    UIImageView *headImageView = [[UIImageViewalloc] initWithFrame:CGRectMake(20, 20, 60, 60)];

    headImageView.image = [UIImageimageNamed:@"defaultHead.png"];

    [photoView addSubview:headImageView];

    

    UILabel *label = [[UILabelalloc] initWithFrame:CGRectMake(100, 20, 100, 30)];

    label.text =@"风景";

    [photoView addSubview:label];

    

    

    UILabel *timeLabel = [[UILabelalloc] initWithFrame:CGRectMake(100, 60, 100, 30)];

    timeLabel.text =@"2014-08-26";

    [photoView addSubview:timeLabel];

    

    UITapGestureRecognizer *tap = [[UITapGestureRecognizeralloc] initWithTarget:selfaction:@selector(dealTap)];

    [photoView addGestureRecognizer:tap];

    

    //5.UIView的动画(扩展:仿射变换)

    UIImageView *bullet = [[UIImageViewalloc] initWithFrame:CGRectMake(10, 450, 20, 20)];

    bullet.image = [UIImageimageNamed:@"bullet.png"];

    [self.viewaddSubview:bullet];

//    [UIView animateWithDuration:2 animations:^{

//        bullet.frame = CGRectMake(300, 450, 50, 50);

//        bullet.alpha = 0;

//    }];

    

    //

    [UIViewanimateWithDuration:4 delay:0options:UIViewAnimationOptionAutoreverseanimations:^{

        bullet.frame =CGRectMake(300, 450, 50, 50);

        //bullet.alpha = 0;

    } completion:^(BOOL finished) {

        [bullet removeFromSuperview];

    }];

    

}

-(void)dealTap

{

    NSLog(@"点击相册");

}