1、基本控件

0、创建HelloWorld工程，在ViewController.m文件

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    //设置背景色
    self.view.backgroundColor = [UIColor whiteColor];
   
}

文本控件UILabel

在
//设置背景色
self.view.backgroundColor = [UIColor whiteColor];
后添加以下代码块：

UILabel *label = [[UILabel alloc]init];//新建一个对象，相当于Java的new
label.text =@"你好，世界";//设置要显示的文本
[label setFrame:CGRectMake(0, 0, 200, 50)];//设置所在的位置
[self.view addSubview:label];//添加该View

多行文字自动换行

bottomLabel.lineBreakMode = NSLineBreakByWordWrapping;
    bottomLabel.numberOfLines = 0;
    bottomLabel.preferredMaxLayoutWidth = SCREEN_WIDTH;

按钮控件UIButton

UIButton *btn = [[UIButton alloc] init];
    [btn setBackgroundColor:[UIColor redColor]];
    [btn setTitle:@"坚持100天" forState:UIControlStateNormal];
    [btn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    [btn setFrame:CGRectMake(0, 0, 200, 50)];
    [self.view addSubview:btn];
//添加点击事件
[btn addTarget:self action:@selector(clickEvent) forControlEvents: UIControlEventTouchUpInside];


-(void) clickEvent{
    NSLog(@"你哈");
    //弹出对话框
    [self showDialog:@"我是点击响应事件！！！！！"];
}

弹出对话框

-(void) showDialog:(NSString *)dialogContent{
    UIAlertController* dialog = [UIAlertController alertControllerWithTitle:@"提示" message:dialogContent preferredStyle:UIAlertControllerStyleAlert];
    //t
    [dialog addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDefault handler:nil]];
    [dialog addAction:[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:nil]];
    //
    [self presentViewController:dialog animated:true completion:nil];
}

列表

#import "ViewController.h"
#import "Masonry.h"


#define SCREEN_WIDTH ([[UIScreen mainScreen] bounds].size.width)

#define SCREEN_HEIGHT ([[UIScreen mainScreen] bounds].size.height)

#define STATUS_HEIGHT ([[UIApplication sharedApplication] statusBarFrame].size.height)


@interface ViewController ()<UITableViewDataSource, UITableViewDelegate>
@property (nonatomic, strong) UITableView *tableView;
@property (nonatomic, strong) NSArray *data;
@end



@implementation ViewController
- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    //设置背景色
    self.view.backgroundColor = [UIColor whiteColor];
    //标题栏
    UIView *titleView =[[UIView alloc]init];
    titleView.backgroundColor=[UIColor whiteColor];
    [self.view addSubview:titleView];
    [titleView mas_makeConstraints:^(MASConstraintMaker *make){
        make.top.equalTo(self.view.mas_top).with.offset(STATUS_HEIGHT);
        make.size.mas_equalTo(CGSizeMake(SCREEN_WIDTH, 50));
    }];
    //
    UIButton *btn = [[UIButton alloc] init];
    [btn setBackgroundColor:[UIColor whiteColor]];
    [btn setTitle:@"更多" forState:UIControlStateNormal];
    [btn setTitleColor:[UIColor colorWithRed:0 green:0 blue:0 alpha:1] forState:UIControlStateNormal];
    NSLog(@"高度:%f",STATUS_HEIGHT);
    //[btn setFrame:CGRectMake(0, STATUS_HEIGHT, SCREEN_WIDTH, 50)];
    [self.view addSubview:btn];
    //
   [btn mas_makeConstraints:^(MASConstraintMaker *make){
       make.centerY.equalTo(titleView);
       make.size.mas_equalTo(CGSizeMake(80, 50));
       make.right.mas_equalTo(self.view.mas_right);
    }];
    [btn addTarget:self action:@selector(click) forControlEvents: UIControlEventTouchUpInside];
    //
    UILabel *label_title = [[UILabel alloc]init];
    label_title.text = @"坚持100天";
    label_title.textColor = [UIColor blackColor];
    [titleView addSubview:label_title];
    [label_title mas_makeConstraints:^(MASConstraintMaker *make){
        make.center.equalTo(titleView);
    }];
    
    
    //
    NSArray *pro = [[NSArray alloc] initWithObjects:@"玩臂力棒",@"背单词",@"跑步",@"编程",@"玩臂力棒2",@"背单词2",@"跑步2",@"编程2", nil];
    self.data = pro;
    //
    
    /**
     *  表格视图样式
     *  UITableViewStylePlain //无分区样式
     UITableViewStyleGrouped //分区样式
     */
    self.tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 64, [UIScreen mainScreen].bounds.size.width, [UIScreen mainScreen].bounds.size.height-64) style:UITableViewStylePlain];
    /**
     *  设置代理
     */
    self.tableView.delegate = self;
    self.tableView.dataSource = self;
    
    [self.view addSubview:self.tableView];
}


-(void)click{
    NSLog(@"你哈");
    //
    [self showDialog:@"我是陈贵坚！！！！！"];
    //[self presentViewController:MyView animated:true completion:nil];
    //self.window.RootViewController = MyView;
}


-(void) showDialog:(NSString *)dialogContent{
    UIAlertController* dialog = [UIAlertController alertControllerWithTitle:dialogContent message:@"" preferredStyle:UIAlertControllerStyleAlert];
    //t
    [dialog addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDefault handler:nil]];
    [dialog addAction:[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:nil]];
    //
    [self presentViewController:dialog animated:true completion:nil];
}





#pragma mark - UITableViewDataSource
/**
 * 有多少个分区
 *  UITableViewDataSource协议中的所有方法,用来对表格视图的样式进行设置(比如说显示的分区个数、每个分区中单元格个数、单元格中显示内容、分区头标题、分区未标题、分区的View)
 */
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return 1;
}

/**
 *  设置每个分区显示的行数
 */
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    if (section == 0) {
        return [self.data count];
    }
    return 0;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    ///<1.>设置标识符
    static NSString * str = @"cellStr";
    ///<2.>复用机制:如果一个页面显示7个cell，系统则会创建8个cell,当用户向下滑动到第8个cell时，第一个cell进入复用池等待复用。
    UITableViewCell * cell = [tableView dequeueReusableCellWithIdentifier:str];
    ///<3.>新建cell
    if (cell == nil) {
        //副标题样式
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:str];
    }
    ///<4.>设置单元格上显示的文字信息
    if (indexPath.section == 0) {
        cell.textLabel.text = [NSString stringWithFormat:@"%@",[self.data objectAtIndex:indexPath.row]];
    }
    
    return cell;
}

/**
 *  由于表格的样式设置成plain样式,但是不能说明当前的表格不显示分区
 */
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
   /*
    if (section == 0) {
        return @"分区一";
    }else {
        return @"分区二";
    }
    */
    return @"";

}

/**
 *  设置单元格的高度
 *  单元格默认高度44像素
 */
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
    return 60.0f;
}

/**
 *  UITableViewDelegate协议中所有方法，用来对单元格自身进行操作(比如单元格的删除、添加、移动...)
 */
#pragma UITableViewDelegate

/**
 *  点击单元格触发该方法
 */
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
    NSString *selectCellStr = cell.textLabel.text;
    //
    [self showDialog:selectCellStr];
}

@end