UI基础

[TOC]

UIView与UIWindow之间的关系

在IOS中使用window和view来展现应用程序的内容。windows是不可见的部分但是它提供了一个基本的容器用来放置程序的视图(view)。每一个app都至少包含一个window以及一个view来展现该app的内容

新建UIWindow

//在AppDelegate.m中
#import "ViewController.h"
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    ViewController *root = [[ViewController alloc] init];
    self.window.rootViewController = root;
    
    return YES;
}

创建UIView

//新建UIView
UIView *view1 = [[UIView alloc] initWithFrame:CGRectMake(100, 100, 120, 40)];
//设置背景色
view1.backgroundColor = [UIColor redColor];
//添加子视图
[self.view addSubview:view1];
UIView常见属性和方法

//1透明度(0-1)
view1.alpha = 0.5;
    
//2是否隐藏
view1.hidden = NO;
    
//3中心点
view1.center = self.view.center;
    
//4tag
view1.tag = 99;
//根据编号找view1
UIView *resultView = [self.view viewWithTag:99];
resultView.backgroundColor = [UIColor blackColor];
    
//将一个字视图移动到前面
[self.view bringSubviewToFront:resultView];
    
//将一个字视图移动到后面
[self.view sendSubviewToBack:resultView];
    
//子视图自杀
[view2 removeFromSuperview];

UIButton

- (void)viewDidLoad {
    [super viewDidLoad];
    /*typedef enum {
　　UIButtonTypeCustom = 0, 自定义风格
　　UIButtonTypeRoundedRect, 圆角矩形
　　UIButtonTypeDetailDisclosure, 蓝色小箭头按钮，主要做详细说明用
　　UIButtonTypeInfoLight, 亮色感叹号
　　UIButtonTypeInfoDark, 暗色感叹号
　　UIButtonTypeContactAdd, 十字加号按钮
　　} UIButtonType;*/
/*      
enum {
　　UIControlStateNormal = 0, 常规状态显现
　　UIControlStateHighlighted = 1 << 0, 高亮状态显现
　　UIControlStateDisabled = 1 << 1, 禁用的状态才会显现
　　UIControlStateSelected = 1 << 2, 选中状态
　　UIControlStateApplication = 0x00FF0000, 当应用程序标志时
　　UIControlStateReserved = 0xFF000000 为内部框架预留，可以不管
　　};*/
    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
    button.backgroundColor = [UIColor greenColor];
    [self.view addSubview:button];
    //位置大小
    button.frame = CGRectMake(10 , 100, 100, 30);
    //内容
    [button setTitle:@"按钮" forState:UIControlStateNormal];
    //字体颜色
    [button setTitleColor:[UIColor orangeColor] forState:UIControlStateNormal];
    button.titleLabel.font = [UIFont systemFontOfSize: 14.0];
    //文字位置
    button.contentHorizontalAlignment = UIControlContentHorizonAlignmentLeft;
    //文字自动适应button大小
    button.titleLabel.adjustsFontSizeToFitWidth = YES;
    //设置按钮按下会发光
    button.showsTouchWhenHighlighted=NO;
    //背景图片
    //创建一张图片
    UIImage *image = [UIImage imageNamed:@"haha"];
    [button setBackgroundImage:image forState:UIControlStateNormal];
    //前景图片
    [button setImage:[UIImage imageNamed:@"hh"] forState:UIControlStateNormal];
    //调整文字和图片位置
    [button setImageEdgeInsets:UIEdgeInsetsMake(0, 0, 0, 30)];
    [button setTitleEdgeInsets:UIEdgeInsetsMake(0, 30, 0, 0)];
    //添加点击事件
    [button addTarget:self action:@selector(youTouchMe) forControlEvents:UIControlEventTouchUpInside];
    
}
//实现按钮到点击方法
- (void)youTouchMe
{
    NSLog(@"你摸了我");
}

UILabel

- (void)viewDidLoad {
    [super viewDidLoad];
    
    //创建UILabel
    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(100, 100, 260, 260)];
    //设置背景色
    label.backgroundColor = [UIColor yellowColor];
    //把标签添加到页面上
    [self.view addSubview:label];
    
    //内容
    label.text = @"I'm LabelI'm LabelI'm LabelI'm LabelI'm LabelI'm LabelI'm LabelI'm Label";
    //文字居中
    label.textAlignment = NSTextAlignmentCenter;
    //文字颜色
    label.textColor = [UIColor redColor];
    //字体大小
    label.font = [UIFont systemFontOfSize:30];
    //粗体字体
    label.font = [UIFont boldSystemFontOfSize:30];
    //字体格式
//    label.font = [UIFont fontWithName:@"隶书" size:30];
    //文字阴影和偏移量
    label.shadowColor = [UIColor blackColor];
    label.shadowOffset = CGSizeMake(2, 2);
    //显示行数
    label.numberOfLines = 4;
    //设置圆角
    label.layer.cornerRadius = 20;
    label.layer.masksToBounds = YES;
    
}

UITextField

//条件1 签订协议
@interface ViewController ()<UITextFieldDelegate>

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    //输入框
    UITextField *field = [[UITextField alloc] initWithFrame:CGRectMake(20, 100, 260, 50)];
    field.backgroundColor = [UIColor yellowColor];
    [self.view addSubview:field];
    //提示
    field.placeholder = @"请输入密码";
    field.textColor = [UIColor redColor];
    field.font = [UIFont systemFontOfSize:25];
    //暗文输入
    field.secureTextEntry = YES;
    //右侧清空按钮
    field.clearButtonMode = UITextFieldViewModeAlways;
    //是否允许输入
    field.enabled = YES;
    //键盘类型
//    field.keyboardType = UIKeyboardTypeNumberPad;
    //边框
    field.borderStyle = UITextBorderStyleRoundedRect;
    //自定义边框
//    field.layer.borderColor = [UIColor redColor].CGColor;
//    field.layer.borderWidth = 2;
//    field.layer.cornerRadius = 5;
//    field.layer.masksToBounds = YES;
    
    //return键的样式
    field.returnKeyType = UIReturnKeyGo;
    
    //代理方法
    //条件2 指定代理人
    field.delegate = self;
    
}
//UITextField的一个代理方法
//条件3 使用协议的方法
- (BOOL)textFieldShouldReturn:(UITextField *)textField
{
    NSLog(@"你点了return键");
    //回收键盘,取消第一响应者
//    [textField resignFirstResponder];
    [textField endEditing:YES];
    
    NSString *str = textField.text;
    if([str isEqualToString:@"123"]){
        NSLog(@"ok");
    }
    return YES;
}
- (void)textFieldDidBeginEditing:(UITextField *)textField
{
    
    NSLog(@"开始编辑");
}
- (void)textFieldDidEndEditing:(UITextField *)textField
{
    NSLog(@"结束编辑");
}

ViewController

要创建一个viewcontroller类
- (void)viewDidLoad {
    [super viewDidLoad];
    //第一个红色页面
    NSLog(@"视图DidLoad");
    self.view.backgroundColor = [UIColor redColor];
    
    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
    button.frame = CGRectMake(10, 100, 100, 50);
    [self.view addSubview:button];
    button.backgroundColor = [UIColor yellowColor];
    [button addTarget:self action:@selector(jump) forControlEvents:UIControlEventTouchUpInside];
}
- (void) jump
{
    //跳转第二个页面
    SecondViewController *second = [[SecondViewController alloc] init];
    //跳转方式
    second.modalTransitionStyle =
        UIModalTransitionStyleFlipHorizontal;
    //跳！！！
    [self presentViewController:second animated:YES completion:^{
        NSLog(@"跳转完成");
    }];
}
- (void)loadView
{
    [super loadView];
    NSLog(@"视图loadView");
}
- (void) viewWillAppear:(BOOL)animated
{
    NSLog(@"视图viewWillAppear");
}
- (void) viewDidAppear:(BOOL)animated
{
    NSLog(@"视图DidAppear");
}
- (void) viewDidDisappear:(BOOL)animated
{
    NSLog(@"视图DidDisappear");
}
![image](http://note.youdao.com/favicon.ico)

UIImageView

- (void)viewDidLoad {
    [super viewDidLoad];
    
    //图片类
    UIImageView *imagev = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 375, 667)];
    imagev.backgroundColor = [UIColor yellowColor];
    [self.view addSubview:imagev];
    //创建一个图片
    UIImage *ima = [UIImage imageNamed:@"1.jpg"];
    //显示
    imagev.image = ima;
    
    //逐帧动画
    //设置播放资源（图片放到数组中）
    NSMutableArray *array = [NSMutableArray array];
    for (int i=0; i<=80; i++) {
        NSString *name = [NSString stringWithFormat:@"drink_%d.jpg", i];
        UIImage *image = [UIImage imageNamed:name];
        [array addObject:image];
    }
    imagev.animationImages = array;
    //设置时间
    imagev.animationDuration = 3;
    //设置重复次数
    imagev.animationRepeatCount = 2;
    //启动
    [imagev startAnimating];
//    [imagev stopAnimating];
}

自定义视图

1 首先新建一个UIView的子类命名为MyView

2 然后在MyView.m中重写initWithFrame:方法并延展私有属性完成MyView的封装

#import <UIKit/UIKit.h>

@interface MyView : UIView
//声明set方法
- (void)setLabelText:(NSString *) NSString;
- (void)setTextFieldPlaceholder:(NSString *)NSString;
@end

#import "MyView.h"

//延展私有属性
@interface MyView()

@property(nonatomic,strong)UILabel *label;
@property(nonatomic,strong)UITextField *tf;

@end

@implementation MyView
//实现set方法
- (void)setLabelText:(NSString *)NSString
{
    _label.text = NSString;
}
- (void)setTextFieldPlaceholder:(NSString *)NSString
{
    _tf.placeholder = NSString;
}
//重写初始化方法 完成布局
- (id)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
        
        _label = [[UILabel alloc] initWithFrame:CGRectMake(5, 5, 80, 40)];
        _tf = [[UITextField alloc] initWithFrame:CGRectMake(90, 5, 240, 40)];
        
        _label.backgroundColor = [UIColor yellowColor];
        _tf.backgroundColor = [UIColor redColor];
        
        _label.layer.cornerRadius = 10;
        _label.layer.masksToBounds = YES;
        _tf.layer.cornerRadius = 10;
        _tf.layer.masksToBounds = YES;
        
        self.backgroundColor = [UIColor blueColor];
        
        [self addSubview:_label];
        [self addSubview:_tf];
    }
    return self;
}

3 在View中使用自定义视图

#import "ViewController.h"
#import "MyView.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    //第一步新建一个类继承自UIView
    //第二步分析新视图由那一些旧识图构成 并且声明为属性
    //第三步重写初始化方法 在方法里完成它的布局
    //使用自定义的视图
    MyView *view = [[MyView alloc] initWithFrame:CGRectMake(10, 100, 360, 50)];
    view.layer.cornerRadius = 10;
    view.layer.masksToBounds = YES;
    [self.view addSubview:view];
    //延展里写的私有属性 不允许在外界直接修改
//    view.label.text = @"用户名";
//    view.tf.placeholder = @"请输入用户名...";
    [view setLabelText:@"用户名"];
    [view setTextFieldPlaceholder:@"请输入用户名..."];
    
}

效果图如下

UIAlertController

#import "ViewController.h"

@interface ViewController ()<UIAlertViewDelegate,UIActionSheetDelegate>

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
//    UIAlertView *alt = [[UIAlertView alloc] initWithTitle:@"友情提示" message:@"是否18" delegate:self cancelButtonTitle:@"不满足" otherButtonTitles:@"满足", nil];
//    //展示
//    [alt show];
//    
//    UIActionSheet *sheet = [[UIActionSheet alloc] initWithTitle:@"请选择城市" delegate:self cancelButtonTitle:@"青海"destructiveButtonTitle:@"西安" otherButtonTitles:@"上海", @"深圳"
//                            , nil];
//    [sheet showInView:self.view];
    self.view.backgroundColor = [UIColor whiteColor];
    
    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
    button.frame = CGRectMake(10, 100, 120, 60);
    button.backgroundColor = [UIColor redColor];
    [self.view addSubview:button];
    [button addTarget:self action:@selector(touchMe) forControlEvents:UIControlEventTouchUpInside];
}
//UIAlertViewDelegate代理方法区分选项
//- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
//{
//    NSLog(@"%ld", buttonIndex);
//    if (buttonIndex == 1) {
//        NSLog(@"ok");
//    }
//}
////UIActionSheetDelegate代理方法区分选项
//- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
//{
//    NSLog(@"%ld", buttonIndex);
//    if (buttonIndex == 1) {
//        NSLog(@"打印鸡排");
//    }
//}
- (void)touchMe
{
    //new提示框
    UIAlertController *control = [UIAlertController alertControllerWithTitle:@"友情提示" message:@"是否购买wawa" preferredStyle:UIAlertControllerStyleAlert];
    //添加选项
    UIAlertAction *act1 = [UIAlertAction actionWithTitle:@"是否购买" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
        NSLog(@"买了");
    }];
    UIAlertAction *act2 = [UIAlertAction actionWithTitle:@"不买" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
        NSLog(@"不买");
    }];
    //红色
    UIAlertAction *act3 = [UIAlertAction actionWithTitle:@"重点" style:UIAlertActionStyleDestructive handler:^(UIAlertAction * _Nonnull action) {
        NSLog(@"it`s me");
    }];
    
    [control addAction:act1];
    [control addAction:act2];
    [control addAction:act3];
    
    
    [self presentViewController:control animated:YES completion:^{
        NSLog(@"ok");
    }];
    
    //定时器
//    [NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(timeOut) userInfo:nil repeats:NO];
}
- (void)timeOut
{
    NSLog(@"时间到");
    [self dismissViewControllerAnimated:YES completion:^{
        
    }];
}

事件

在ViewController.h中添加UITextFiled并添加子视图MyView完成点击空白区域收起键盘功能

#import "ViewController.h"
#import "MyView.h"
//将tf设置为全局变量
@interface ViewController ()
{
    UITextField *tf;
}
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    tf= [[UITextField alloc] initWithFrame:CGRectMake(10, 100, 300, 60)];
    tf.backgroundColor = [UIColor redColor];
    [self.view addSubview:tf];
    
    MyView *view = [[MyView alloc] initWithFrame:CGRectMake(20, 300, 270, 200)];
    view.backgroundColor = [UIColor grayColor];
    
    //关闭用户交互
//    view.userInteractionEnabled = NO;
    
    [self.view addSubview:view];
}
//触摸屏幕的 触摸方法
- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
    NSLog(@"触摸开始");
    //关闭第一响应者
    [tf resignFirstResponder];
}

- (void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
    NSLog(@"触摸结束");
}

- (void)touchesMoved:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
    NSLog(@"移动");
}

- (void)touchesCancelled:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
    NSLog(@"取消触摸");
}
//摇晃手机触发方法
- (void)motionBegan:(UIEventSubtype)motion withEvent:(UIEvent *)event
{
    NSLog(@"摇晃开始");
}
- (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event
{
    NSLog(@"摇晃结束");
}
- (void)motionCancelled:(UIEventSubtype)motion withEvent:(UIEvent *)event
{
    NSLog(@"摇晃取消");
}

在MyView中实现触摸方法

//触摸屏幕的 触摸方法
- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
    NSLog(@"触摸view开始");
}

- (void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
    NSLog(@"触摸view结束");
}

- (void)touchesMoved:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
    NSLog(@"view移动");
}

- (void)touchesCancelled:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
    NSLog(@"view取消触摸");
}

效果图如下

当点击空白区域键盘收起

屏幕快照 2017-07-17 下午3.44.07.png

点击灰色区域输出

屏幕快照 2017-07-17 下午3.43.50.png

点击白色区域

屏幕快照 2017-07-17 下午3.43.37.png

UISegmentedControl

- (void)viewDidLoad {
    [super viewDidLoad];
    //创建分段控件
    NSArray *array = [NSArray arrayWithObjects:@"亚洲",@"欧美",@"日韩",nil];
    UISegmentedControl *seg = [[UISegmentedControl alloc] initWithItems:array];
    seg.frame = CGRectMake(30, 100, 300, 50);
    [self.view addSubview:seg];
    
    //修改颜色
    seg.tintColor = [UIColor redColor];
    
    //默认选中某个
    seg.selectedSegmentIndex = 1;
    //修改标题
    [seg setTitle:@"动漫" forSegmentAtIndex:2];
//    //设置选项图片
//    UIImage *image = [UIImage imageNamed:@"111"];
//    //防止图片被控件渲染
//    [image imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
//    [seg setImage:image forSegmentAtIndex:0];
    
    //修改字体颜色
    
    //添加事件
    [seg addTarget:self action:@selector(selectWhich:) forControlEvents:UIControlEventValueChanged];
    
}
- (void)selectWhich:(UISegmentedControl *)se
{
    NSLog(@"%ld", (long)se.selectedSegmentIndex);
}

UISwith,UISlider

#import "ViewController.h"

@interface ViewController ()
{
    UITextField *tf;
}
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    //开关UISwitch
    UISwitch *sw = [[UISwitch alloc] initWithFrame:CGRectMake(100, 100, 0, 0)];
    [self.view addSubview:sw];
    //设置开关颜色
//    sw.onTintColor = [UIColor yellowColor];
    //设置小球颜色
//    sw.thumbTintColor = [UIColor orangeColor];
    //默认开关视打开的
    sw.on = YES;
    //给开关添加事件
    [sw addTarget:self action:@selector(touchSwitch:) forControlEvents:UIControlEventValueChanged];
    tf = [[UITextField alloc] initWithFrame:CGRectMake(100, 200, 260, 40)];
    tf.backgroundColor = [UIColor blueColor];
    [self.view addSubview:tf];
    
    //滑动条UISlider
    UISlider *sl = [[UISlider alloc] initWithFrame:CGRectMake(100, 400, 260, 20)];
//    sl.backgroundColor = [UIColor purpleColor];
    //小球的颜色
    sl.thumbTintColor = [UIColor grayColor];
    //未滑过区域颜色
    sl.maximumTrackTintColor = [UIColor redColor];
    //滑过区域颜色
    sl.minimumTrackTintColor = [UIColor greenColor];
    //设置最大最小值
    sl.maximumValue = 100.0;
    sl.minimumValue = 0.0;
    //添加事件
    [sl addTarget:self action:@selector(sliderMe:) forControlEvents:UIControlEventValueChanged];
    [self.view addSubview:sl];
}
- (void)sliderMe:(UISlider *)s
{
    NSLog(@"%f", s.value);
}
- (void)touchSwitch:(UISwitch *)s
{
    tf.enabled = s.on;
}

UIScrollView,UIPageControl

@interface ViewController ()<UIScrollViewDelegate>
{
    UIPageControl *PControl;
    UIScrollView *sv;
}

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    sv = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 414, 736)];
    sv.backgroundColor = [UIColor yellowColor];
    [self.view addSubview:sv];
    //设置大小
//    NSLog(@"%@",self.view);
    sv.contentSize = CGSizeMake(414*4, 736);
    //把图片放进去
    for (int i = 1; i<=4; i++) {
        NSString *name = [NSString stringWithFormat:@"%d.jpg",i];
        UIImage *image = [UIImage imageNamed:name];
        UIImageView *imageV = [[UIImageView alloc] initWithFrame:CGRectMake(414*(i-1), 0, 414, 736)];
        imageV.image = image;
        [sv addSubview:imageV];
    }
    //分页显示
    sv.pagingEnabled = YES;
    //是否允许反弹
//    sv.bounces = NO;
    //修改滚动条
    sv.indicatorStyle = UIScrollViewIndicatorStyleWhite;
    //隐藏滚动条
//    sv.showsHorizontalScrollIndicator = YES;
//    sv.showsVerticalScrollIndicator = NO;
    //滑动到指定位置（偏移量）
    sv.contentOffset = CGPointMake(414*3, 0);
    
    sv.delegate = self;
    
    //创建下面点四个小点
    PControl = [[UIPageControl alloc] initWithFrame:CGRectMake(0, 700, 414, 50)];
//    PControl.backgroundColor = [UIColor redColor];
    [self.view addSubview:PControl];
    //几个点
    PControl.numberOfPages = 4;
    //未选中点的颜色
//    PControl.pageIndicatorTintColor = [UIColor yellowColor];
    //选中点的颜色
//    PControl.currentPageIndicatorTintColor = [UIColor blueColor];
    //添加事件
    [PControl addTarget:self action:@selector(pageCon:) forControlEvents:UIControlEventValueChanged];
    
}
- (void)pageCon:(UIPageControl *)p
{
    NSLog(@"--->>%ld",p.currentPage);
//    sv.contentOffset = CGPointMake(414*p.currentPage, 0);
    [sv setContentOffset:CGPointMake(414*p.currentPage, 0) animated:YES];
}
//UIScrollView的代理方法
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
//    NSLog(@"动了");
   
//    NSLog(@"%d", number + 1);
}
- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
{
    NSLog(@"开始拖拽");
}
- (void)scrollViewWillEndDragging:(UIScrollView *)scrollView withVelocity:(CGPoint)velocity targetContentOffset:(inout CGPoint *)targetContentOffset
{
    NSLog(@"结束拖拽");
}
- (void)scrollViewWillBeginDecelerating:(UIScrollView *)scrollView
{
    NSLog(@"开始减速");
    NSInteger number = (NSInteger)scrollView.contentOffset.x/414;
    //设置底部的小点到相应的位置
    PControl.currentPage = number;
}
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView
{
    NSLog(@"结束减速");
}

UINavigationController

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
    self.window.backgroundColor = [UIColor whiteColor];
    ViewController *root = [[ViewController alloc] init];
    //创建导航控制器
    UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:root];
    //把导航控制器作为window的根视图
    self.window.rootViewController = nav;
    //导航栏的颜色
    nav.navigationBar.barTintColor = [UIColor blueColor];
    //半透明
    nav.navigationBar.translucent = NO;
    
    return YES;
}

#import "ViewController.h"
#import "SeViewController.h"

@interface ViewController ()<chuanZhiDelegate>
{
    UITextField *tf;
}

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    //把控制导航栏内容的代码写到对应的页面来
    self.navigationItem.title = @"首页";
//    self.navigationItem.titleView =
    //左右侧的按钮
    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"右侧" style:UIBarButtonItemStylePlain target:self action:@selector(touchRight)];
    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"more"] style:UIBarButtonItemStylePlain target:self action:@selector(touchRight)];
    
    //第二个页面
    tf = [[UITextField alloc] initWithFrame:CGRectMake(20, 200, 280, 40)];
    tf.backgroundColor = [UIColor grayColor];
    [self.view addSubview:tf];
}
- (void)touchRight
{
    NSLog(@"点了右面");
    SeViewController *se = [[SeViewController alloc] init];
    //传值
    se.inputStr = tf.text;
    //指定代理人
    se.delegate = self;
    //跳转
    [self.navigationController pushViewController:se animated:YES];
}
- (void)chuanZhi:(NSString *)str
{
    NSLog(@"验证有没有传递成功%@",str);
}

#import <UIKit/UIKit.h>
//第一步 协议的名称 声明协议
@protocol chuanZhiDelegate <NSObject>
//第三步 写方法
- (void)chuanZhi:(NSString *)str;

@end


@interface SeViewController : UIViewController
//声明一个属性来接收传来的值
@property(nonatomic,strong)NSString *inputStr;
//第二步 声明属性（代理人）
@property(nonatomic,assign)id<chuanZhiDelegate>delegate;
@end

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    self.view.backgroundColor = [UIColor yellowColor];
    //第二个页面左上角的返回按钮
    self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"back"] style:UIBarButtonItemStylePlain target:self action:@selector(goBack)];
    
    //
    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(20, 200, 280, 40)];
    label.backgroundColor = [UIColor grayColor];
    label.text = self.inputStr;
    [self.view addSubview:label];
}
- (void)goBack
{
    //返回时触发代理方法 将值传递回去
    [self.delegate chuanZhi:@"这是个返回的值"];
    [self.navigationController popViewControllerAnimated:YES];
}

Block和单例传值

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
    self.window.backgroundColor = [UIColor whiteColor];
    [self.window makeKeyAndVisible];
    
    ViewController *root = [[ViewController alloc] init];
    UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:root];
    self.window.rootViewController = nav;
    nav.navigationBar.barTintColor = [UIColor greenColor];
    nav.navigationBar.translucent = NO;
    return YES;
}

ViewController.m

#import "ViewController.h"
#import "SecondViewController.h"
#import "MyData.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    self.view.backgroundColor = [UIColor yellowColor];
    
    self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"跳转" style:UIBarButtonItemStylePlain target:self action:@selector(jumpToNext)];
    //创建一个单例类对象并赋值
    MyData *data = [MyData instance];
    data.name = @"赵日天";
    
    //通知
    //注册通知  （打开收音机 并调到对应的频率）
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(receiveMessage:) name:@"99.7" object:nil];
    
    
}
- (void)receiveMessage:(NSNotification *)not
{
    NSLog(@"%@", not.object);
}
- (void)viewDidDisappear:(BOOL)animated
{
    //移除通知
    [[NSNotificationCenter defaultCenter] removeObserver:self name:@"99.7" object:nil];
}
- (void)jumpToNext
{
    SecondViewController *second = [[SecondViewController alloc] init];
    __block ViewController *tempSelf = self;
    
    second.chuanzhiBlock = ^(NSString *str){
        NSLog(@"%@",str);
        tempSelf.navigationItem.title = @"111";
    };
    [self.navigationController pushViewController:second animated:YES];
}

SecondViewController.h

#import <UIKit/UIKit.h>

@interface SecondViewController : UIViewController
@property(nonatomic,copy)void(^chuanzhiBlock)(NSString *str);
@end

SecondViewController.m

- (void)viewDidLoad {
    [super viewDidLoad];
    self.view.backgroundColor = [UIColor orangeColor];
    
    self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"返回" style:UIBarButtonItemStylePlain target:self action:@selector(jumpBack)];
    MyData *data = [MyData instance];
    NSLog(@"%@",data.name);
}
- (void)jumpBack
{
    self.chuanzhiBlock(@"block将值传回");
    
    //发送广播（通知）
    [[NSNotificationCenter defaultCenter] postNotificationName:@"99.7" object:@"通知传值" userInfo:nil];
    
    [self.navigationController popViewControllerAnimated:YES];
}

MyData.h

#import <Foundation/Foundation.h>

@interface MyData : NSObject

@property(nonatomic,strong)NSString *name;

+ (MyData *)instance;

@end

MyData.m

#import "MyData.h"

@implementation MyData

static MyData *mydata = nil;
+ (MyData *)instance
{
    if (mydata == nil) {
        mydata = [[MyData alloc] init];
    }
    return mydata;
}
@end

UITaBarController

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
    self.window.backgroundColor = [UIColor whiteColor];
    [self.window makeKeyAndVisible];
    
    //淘宝页面
    TaoBaoViewController *taobao = [[TaoBaoViewController alloc] init];
    UINavigationController *taoNav = [[UINavigationController alloc] initWithRootViewController:taobao];
//    UITabBarController *tabbar = [[UITabBarController alloc] init];
    //设置标题
    taoNav.tabBarItem.title = @"淘宝";
    //设置未选中图片
    taoNav.tabBarItem.image = [UIImage imageNamed:@"淘宝"];
    //设置选中图片
//    taoNav.tabBarItem.selectedImage = [UIImage imageNamed:@""];
    
    //天猫页面
    TmallViewController *tmall = [[TmallViewController alloc] init];
    UINavigationController *tmallNav = [[UINavigationController alloc] initWithRootViewController:tmall];
    UITabBarController *tabbarC = [[UITabBarController alloc] init];
    tmallNav.tabBarItem.title = @"天猫";
    tmallNav.tabBarItem.image = [UIImage imageNamed:@"天猫"];
    
    //把页面放到tabbarcontroller中
    tabbarC.viewControllers = [NSArray arrayWithObjects:taoNav,tmallNav, nil];
    //把tabbarcontroller作为window的根视图
    self.window.rootViewController = tabbarC;
    
    //统一设置导航栏样式
    [[UINavigationBar appearance] setBarTintColor:[UIColor greenColor]];
    [[UINavigationBar appearance] setTranslucent:NO];
    
    return YES;
}

UITableView

AppDelegate.m

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
    self.window.backgroundColor = [UIColor whiteColor];
    [self.window makeKeyAndVisible];
    
    ViewController *root = [[ViewController alloc] init];
    UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:root];
    nav.navigationBar.barTintColor = [UIColor greenColor];
    nav.navigationBar.translucent = NO;
    
    self.window.rootViewController = nav;
    
    return YES;
}

Movie.h

#import <Foundation/Foundation.h>

@interface Movie : NSObject
@property(nonatomic,strong)NSString *movieName;
@property(nonatomic,strong)NSString *movieActor;
@end

ViewController.m

#import "ViewController.h"
#import "Movie.h"

@interface ViewController ()<UITableViewDataSource,UITableViewDelegate>
{
    NSMutableArray *array;
    
}
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    UITableView *tab = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, 414, 736) style:UITableViewStylePlain];
    [self.view addSubview:tab];
    tab.delegate = self;
    tab.dataSource = self;
    
    //添加表头
    UIImageView *imageV = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 414, 80)];
    imageV.image = [UIImage imageNamed:@"4.jpg"];
    tab.tableHeaderView = imageV;
    
    
    //数组源数据
//    array = [NSArray arrayWithObjects:@"亚瑟",@"剑神",@"盲僧",@"老牛",@"小灰", nil];
    
    array = [NSMutableArray array];//初始化
    
    Movie *m1 = [[Movie alloc] init];
    m1.movieName = @"金瓶梅";
    m1.movieActor = @"张大大";
    
    Movie *m2 = [[Movie alloc] init];
    m2.movieName = @"终结者";
    m2.movieActor = @"李大大";
    
    //将电影添加到数组中
    [array addObject:m1];
    [array addObject:m2];
    
}
//代理方法
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    //1 创建标识符
    static NSString *identifier = @"cell";
    //2 根据标识符从重用池取cell
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier];
    //3 如果没有就创建一个新的
    if (cell == nil) {
        NSLog(@"经来了");
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:identifier];
    }
    //对cell进行赋值
    //这么写娄
//    cell.textLabel.text = [array objectAtIndex:indexPath.row];
//    cell.detailTextLabel.text = @"666666";
    //这样写好
    Movie *tempMovie = [array objectAtIndex:indexPath.row];
    cell.textLabel.text = tempMovie.movieName;
    cell.detailTextLabel.text = tempMovie.movieActor;
    cell.imageView.image = [UIImage imageNamed:@"淘宝"];
    cell.accessoryType = UITableViewCellAccessoryDetailButton;
    
//    cell.accessoryView = 
    
    return cell;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return array.count ;
}
//cell的高度
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    return 60;
}
//控制分区代理方法（亚洲，欧美，日韩）
//分区的个数
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 3;
}
//分区的高度
- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
{
    return 40;
}
//标题
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
    return @"分区";
}
//自定义分区
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
    UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 414, 40)];
    view.backgroundColor = [UIColor redColor];
    return view;
}

UITableView的编辑

AppDelegate.m

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
    ViewController *root = [[ViewController alloc] init];
    
    self.window.backgroundColor = [UIColor whiteColor];
    [self.window makeKeyAndVisible];
    
    UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:root];
    self.window.rootViewController = nav;
    nav.navigationBar.barTintColor = [UIColor grayColor];
    nav.navigationBar.translucent = NO;
    return YES;
}

ViewController.m

#import "ViewController.h"

@interface ViewController ()<UITableViewDataSource,UITableViewDelegate>
{
    NSMutableArray *dataArray;
    UITableView *tab;
}
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    tab = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, 414, 736-64) style:UITableViewStylePlain];
    [self.view addSubview:tab];
    tab.delegate = self;
    tab.dataSource = self;
    
    dataArray = [NSMutableArray array];
    [dataArray addObject:@"宋江"];
    [dataArray addObject:@"武松"];
    [dataArray addObject:@"王英"];
    [dataArray addObject:@"老虎"];
    
    //系统编辑按钮
    self.navigationItem.rightBarButtonItem = self.editButtonItem;
}
//点击编辑按钮执行的方法
- (void)setEditing:(BOOL)editing animated:(BOOL)animated
{
    [super setEditing:editing animated:animated];
    //开启tab编辑
    [tab setEditing:editing animated:animated];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return dataArray.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *identifier = @"cell";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier];
    if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:identifier];
    }
    cell.textLabel.text = [dataArray objectAtIndex:indexPath.row];
    return cell;
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    return 80;
}

//控制编辑的代理方法
//是否允许编辑
//- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
//{
//    if (indexPath.row == 3) {
//        return NO;
//    }
//    return YES;
//}
//允许移动
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
{
    return YES;
}
//插入还是删除
- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath
{
    return UITableViewCellEditingStyleDelete;
}
//删除按钮的文字
- (NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath
{
    return @"删除";
}
//控制删除和插入操作的
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
    //判断你要干嘛
    if (editingStyle == UITableViewCellEditingStyleDelete) {
        //这里写删除的代码
        //1 先删除数组中的数据
        [dataArray removeObjectAtIndex:indexPath.row];
        //2 删除cell
        [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationNone];
    }
}
//控制移动的代码
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)sourceIndexPath toIndexPath:(NSIndexPath *)destinationIndexPath
{
    //移动的代码写在这
    //1 获取要移动的数据
    NSString *str = [dataArray objectAtIndex:sourceIndexPath.row];
    //2 删除这一行
    [dataArray removeObjectAtIndex:sourceIndexPath.row];
    //3 插入到新的位置
    [dataArray insertObject:str atIndex:destinationIndexPath.row];
}
//点击cell执行的方法
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    NSLog(@"你点了第%ld行",indexPath.row+1);
    //刷新列表
    [tab reloadData];
}

自定义cell

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
    ViewController *root = [[ViewController alloc] init];
    
    self.window.backgroundColor = [UIColor whiteColor];
    [self.window makeKeyAndVisible];
    
    UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:root];
    self.window.rootViewController = nav;
    nav.navigationBar.barTintColor = [UIColor grayColor];
    nav.navigationBar.translucent = NO;
    return YES;
}

ViewController.m

@interface ViewController ()<UITableViewDataSource,UITableViewDelegate>
{
    NSMutableArray *dataArray;
}
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    UITableView *tab = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, 414, 736-64) style:UITableViewStylePlain];
    [self.view addSubview:tab];
    tab.delegate = self;
    tab.dataSource = self;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *identifier = @"cell";
    MyTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier];
    if (cell == nil) {
        cell = [[MyTableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:identifier];
    }
    //调用自己写的控件
    cell.movieIcon.image = [UIImage imageNamed:@""];
    cell.movieName.text = @"湄公河";
    cell.movieActor.text = @"网民";
    cell.movieTime.text = @"60";
    return cell;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return 5;
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    return 100;
}

MyTableViewCell.h

#import <UIKit/UIKit.h>

@interface MyTableViewCell : UITableViewCell
//1 定义需要的属性 （空件）
@property(nonatomic,strong)UIImageView *movieIcon;
@property(nonatomic,strong)UILabel *movieName;
@property(nonatomic,strong)UILabel *movieActor;
@property(nonatomic,strong)UILabel *movieTime;

@end

MyTableViewCell.m

#import "MyTableViewCell.h"

@implementation MyTableViewCell
//2 重写初始化方法
- (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
    if (self) {
        //在初始化方法中完成控件的初始化 并添加到cell上
        self.movieIcon = [[UIImageView alloc] init];
        [self.contentView addSubview:self.movieIcon];
        
        self.movieName = [[UILabel alloc] init];
        [self.contentView addSubview:self.movieName];
        
        self.movieActor = [[UILabel alloc] init];
        [self.contentView addSubview:self.movieActor];
        
        self.movieTime = [[UILabel alloc] init];
        [self.contentView addSubview:self.movieTime];
    }
    return self;
}
//3 设置控件的样式
- (void)layoutSubviews
{
    [super layoutSubviews];
    self.movieIcon.frame = CGRectMake(10, 10, 50, 50);
    self.movieName.frame = CGRectMake(70, 10, 260, 20);
    self.movieActor.frame = CGRectMake(70, 40, 260, 20);
    self.movieTime.frame = CGRectMake(70, 70, 260, 20);
    
    self.movieIcon.backgroundColor = [UIColor redColor];
    self.movieName.backgroundColor = [UIColor grayColor];
    self.movieActor.backgroundColor = [UIColor grayColor];
    self.movieTime.backgroundColor = [UIColor grayColor];
}

最后编辑于：2017.12.09 00:53:02

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UI基础

UIView与UIWindow之间的关系

新建UIWindow

创建UIView

UIButton

UILabel

UITextField

ViewController

UIImageView

自定义视图

UIAlertController

事件

UISegmentedControl

UISwith,UISlider

UIScrollView,UIPageControl

UINavigationController

Block和单例传值

UITaBarController

UITableView

UITableView的编辑

自定义cell

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