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：