//command+R 运行
//command+. 停止
//command+B 预编译
//command+1、2、3 模拟器大小
//command+shift+h home键
//command+shift+两个h 后台
//所有控件的父类
//实例化方式,属性,相关方法
//实例化:alloc initWithFrame
//CGRect类型:赋值方式CGRectMake
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(100, 100, 100, 100)];
view.frame = CGRectMake(100, 50, 200, 100);
//位置及大小:frame
//坐标系的原点、正轴方向
//位置:前两个参数 原点:父视图最左上角的点 x轴正轴方向:向右 y轴正轴方向:向下
//开发过程中的单位:像素
//CGRectMake(CGFloat x (view在x轴的位置), CGFloat y (view在y轴的位置), CGFloat width (view本身自己的宽), CGFloat height (view本身自己的高))
//CGRect本身是个结构体->CGPoint结构体、CGSize结构体
//CGPoint->x、y 位置的结构体
//CGSize->width、height 大小的结构体
//设置背景颜色:backgroundColor
//赋值方式一:[UIColor someColor]
/*
+ (UIColor *)blackColor; // 0.0 white
+ (UIColor *)darkGrayColor; // 0.333 white
+ (UIColor *)lightGrayColor; // 0.667 white
+ (UIColor *)whiteColor; // 1.0 white
+ (UIColor *)grayColor; // 0.5 white
+ (UIColor *)redColor; // 1.0, 0.0, 0.0 RGB
+ (UIColor *)greenColor; // 0.0, 1.0, 0.0 RGB
+ (UIColor *)blueColor; // 0.0, 0.0, 1.0 RGB
+ (UIColor *)cyanColor; // 0.0, 1.0, 1.0 RGB
+ (UIColor *)yellowColor; // 1.0, 1.0, 0.0 RGB
+ (UIColor *)magentaColor; // 1.0, 0.0, 1.0 RGB
+ (UIColor *)orangeColor; // 1.0, 0.5, 0.0 RGB
+ (UIColor *)purpleColor; // 0.5, 0.0, 0.5 RGB
+ (UIColor *)brownColor; // 0.6, 0.4, 0.2 RGB
+ (UIColor *)clearColor; // 0.0 white, 0.0 alpha
*/
//赋值方式二:[UIColor colorWithRed:(CGFloat(0.0-1.0)) green:(CGFloat((0到255的数)/255.0)) blue:(CGFloat) alpha:(CGFloat)]
// view.backgroundColor = [UIColor redColor];
// view.backgroundColor = [UIColor colorWithRed:0.45 green:0.23 blue:0.67 alpha:1.0];
view.backgroundColor = [UIColor colorWithRed:123.0/255.0 green:213/255.0 blue:145/255.0 alpha:1.0];
//透明度:alpha 0.0-1.0 0.0:完全透明 1.0:完全不透明,默认状态
view.alpha = 0.6;
//隐藏属性:hidden BOOL NO:不隐藏,默认状态 YES:隐藏
view.hidden = NO;
//将view加载到window层上:addSubview
//父视图、子视图:不是继承关系、不是绝对的概念
//[父视图 addSubview:子视图]
[self.window addSubview:view];
//实例化
UIView *view1 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 50, 50)];
view1.backgroundColor = [UIColor redColor];
//添加到父视图上面
[view addSubview:view1];
UIView * view2 = [[UIView alloc]init];
view2.bounds = CGRectMake(0, 0, 30, 30);
view2.backgroundColor = [UIColor yellowColor];
[view1 addSubview:view2];
// ************************************************
//实例化
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(50, 100, 220, 220)];
//设置背景颜色
view.backgroundColor = [UIColor redColor];
//设置透明度
//透明度:父视图有透明度,它上面的子视图就会有相应的透明度;子视图的透明度对父视图没有影响。
view.alpha = 1.0;
//设置隐藏属性
//隐藏属性:父视图隐藏,子视图跟着隐藏;子视图的隐藏属性对父视图没有影响。
view.hidden = NO;
//tag
view.tag = 1000;
//添加到父视图上面
[self.window addSubview:view];
//创建一个view的子视图
UIView *view2 = [[UIView alloc] initWithFrame:CGRectMake(10, 10, 80, 80)];
view2.backgroundColor = [UIColor blueColor];
view2.alpha = 1.0;
view2.hidden = YES;
//添加到view上面
[view addSubview:view2];
//由tag找到相应的view
UIView *viewTag = (UIView *)[self.window viewWithTag:1000];
NSLog(@"view=%@",view);
NSLog(@"tag=%@",viewTag);
/*
view=<UIView: 0x78f544e0; frame = (50 100; 220 220); tag = 1000; layer = <CALayer: 0x78f53110>>
tag =<UIView: 0x78f544e0; frame = (50 100; 220 220); tag = 1000; layer = <CALayer: 0x78f53110>>
*/
/******UIView-中心点*****/ UIView *view = [[UIView alloc] init]; //位置及大小的设置方式一:frame // view.frame = CGRectMake(100, 100, 120, 120); //位置及大小的设置方式二:center(中心点,位置),bounds(大小) //center:view自己的中心点 view.center = CGPointMake(160, 70); //bounds:后两个参数是view自己本身的大小 //bounds:前两个参数影响的是view自己本身的坐标系:正数坐标系原点向左和向上移动;父数坐标系原点向右和向下移动 //bounds:前两个参数后期:就是(0,0) view.bounds = CGRectMake(10, 10, 120, 120); view.backgroundColor = [UIColor redColor]; [self.view addSubview:view]; UIView *view1 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 60, 60)]; view1.backgroundColor = [UIColor cyanColor]; [view addSubview:view1]; /*******UIView-变形属性**********/ UIView *viewTransform = [[UIView alloc] initWithFrame:CGRectMake(100, 170, 100, 100)]; viewTransform.backgroundColor = [UIColor orangeColor]; // 150 270 //变形属性是以中心点为基准的 //变形属性:transform //大小变形:CGAffineTransformMakeScale width*sx heigth*sy viewTransform.transform = CGAffineTransformMakeScale(2, 0.5); //角度变形:CGAffineTransformMakeRotation viewTransform.transform = CGAffineTransformMakeRotation(M_PI_4); //NSStringFromCGPoint 将CGPoint类型转成字符串类型 NSLog(@"%@",NSStringFromCGPoint(viewTransform.center)); [self.view addSubview:viewTransform]; /********UIView-圆角设置***********/ UIView *viewLayer = [[UIView alloc] initWithFrame:CGRectMake(110, 300, 100, 100)]; viewLayer.backgroundColor = [UIColor magentaColor]; //圆角设置:layer //圆角大小:cornerRadius 正方形边长的一半为圆 viewLayer.layer.cornerRadius = 20; //边框设置:borderWidth viewLayer.layer.borderWidth = 5; //设置边框颜色:borderColor 默认黑色 [UIColor greenColor].CGColor viewLayer.layer.borderColor = [UIColor greenColor].CGColor; viewLayer.layer.borderColor = [[UIColor greenColor] CGColor]; //是否切割子视图超出圆角的部分 : YES:切割掉 默认NO:不切割 //如果masksToBounds=YES 阴影效果出不来 viewLayer.layer.masksToBounds = NO; //阴影 //阴影的透明度:shadowOpacity 默认0.0 viewLayer.layer.shadowOpacity = 1.0; //阴影的偏移量:shadowOffset viewLayer.layer.shadowOffset = CGSizeMake(50, 50); //阴影的颜色:shadowColor viewLayer.layer.shadowColor = [UIColor blueColor].CGColor; //阴影角度:shadowRadius 带有虚化的效果 viewLayer.layer.shadowRadius = 30; [self.view addSubview:viewLayer];
/*************UIView-层次关系***************/ //添加视图:addSubview [self.view addSubview:view5]; //移除视图:removeFromSuperview // [view5 removeFromSuperview]; //将某个视图移动到最上面 bringSubviewToFront: [self.view bringSubviewToFront:view1]; //将某个视图移动到最下面 sendSubviewToBack: [self.view sendSubviewToBack:view1]; //将某一个视图移动到另一个视图的上面 [self.view insertSubview:view1 aboveSubview:view3]; //将某一个视图移动到另一个视图的下面 [self.view insertSubview:view1 belowSubview:view2]; //将某个视图放到指定的位置 // [self.view insertSubview:view1 atIndex:3]; //交换两个视图的位置 [self.view exchangeSubviewAtIndex:1 withSubviewAtIndex:4]; /***********UIView-响应关系***********/ UIView *view = [[UIView alloc] initWithFrame:CGRectMake(70, 280, 160, 40)]; view.backgroundColor = [UIColor blueColor]; [self.view addSubview:view]; UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem]; button.frame = CGRectMake(80, 5, 160, 30); button.backgroundColor = [UIColor purpleColor]; [button setTitle:@"button" forState:UIControlStateNormal]; [button addTarget:self action:@selector(buttonClick:) forControlEvents:UIControlEventTouchUpInside]; [view addSubview:button]; /* 超出父视图范围的部分不参与用户响应,只有在父视图之内的部分才会参与用户响应。 */ //UILabel UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(20, 340, 280, 60)]; label.backgroundColor = [UIColor redColor]; //label 添加的按钮想要展示的话需要将clipsToBounds=YES //UIView的属性:是否切割多余视图的属性 label.clipsToBounds = YES; //只有当clipsToBounds=YES时,label的圆角效果才能出来 label.layer.cornerRadius = 20; //userInteractionEnabled 打开用户响应开关的属性 当为YES时:可以参与用户响应 只有UILabel和UIImageView默认NO /* 只有父视图能够接受用户响应,它上面的子视图才能参与用户响应 */ label.userInteractionEnabled = YES; [self.view addSubview:label]; //UIButton UIButton *button1 = [UIButton buttonWithType:UIButtonTypeSystem]; button1.frame = CGRectMake(40, 10, 200, 40); button1.backgroundColor = [UIColor grayColor]; [button1 setTitle:@"button" forState:UIControlStateNormal]; [button1 addTarget:self action:@selector(buttonDown:) forControlEvents:UIControlEventTouchUpInside]; [label addSubview:button1]; }
//博客园竟然也有这种功能,以前竟没发现...