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  • QQ空间HD(1)-UIPopoverController基本使用

    UIPopoverController 是iPad的专属API

    ViewController.m

    #import "ViewController.h"
    #import "DJMenuViewController.h"
    
    @interface ViewController ()
    
    - (IBAction)leftItemDidClick:(id)sender;
    
    @end
    
    @implementation ViewController
    
    - (void)viewDidLoad {
        [super viewDidLoad];
        
    }
    
    - (void)didReceiveMemoryWarning {
        [super didReceiveMemoryWarning];
        // Dispose of any resources that can be recreated.
    }
    
    - (IBAction)leftItemDidClick:(id)sender {
    
        DJMenuViewController *menuVC = [[DJMenuViewController alloc] init];
        UINavigationController *menuNavVC = [[UINavigationController alloc] initWithRootViewController:menuVC];
        
        // 创建一个popoverController,注意!只能使用initWithContentViewController创建!
        // 在iOS7以下的系统中,需要将popoverVC当做一个成员变量,使用一个强指针进行引用,否则在这段代码执行完毕后,popoverVC将被销毁
        UIPopoverController *popoverVC = [[UIPopoverController alloc] initWithContentViewController:menuNavVC];
        // 设置popoverController的内部尺寸
        popoverVC.popoverContentSize = CGSizeMake(320, 44*6);
        // 显示popoverController,有点类似于android里面的popview的showAsDropDown方法
        [popoverVC presentPopoverFromBarButtonItem:sender permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
        
    }
    @end

    DJMenuViewController.m

    #import "DJMenuViewController.h"
    #import "DJTestViewController.h"
    
    
    @interface DJMenuViewController()
    
    @property (nonatomic,strong) NSArray *titles;
    
    @end
    
    
    @implementation DJMenuViewController
    
    
    - (void)viewDidLoad {
    
        [super viewDidLoad];
        self.titles = @[@"发起群聊",@"添加朋友",@"扫一扫",@"收付款"];
        
    }
    
    
    - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
        
        return self.titles.count;
    }
    
    - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
        
        static NSString *ID = @"title";
        UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:ID];
        if (!cell) {
            cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:ID];
        }
        
        cell.textLabel.text = self.titles[indexPath.row];
        return cell;
    }
    
    
    - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
        
        DJTestViewController *testVC = [[DJTestViewController alloc] init];
        [self.navigationController pushViewController:testVC animated:YES];
    
    }
    
    @end

    DJTestViewController.m

    #import "DJTestViewController.h"
    
    @implementation DJTestViewController
    
    - (void)viewDidLoad {
    
        [super viewDidLoad];
    
        self.view.backgroundColor = [UIColor redColor];
    }
    
    @end

    Main.stroyboard

    最终运行效果:

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  • 原文地址:https://www.cnblogs.com/yongdaimi/p/6209307.html
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