UIPopoverController的简单使用_popover = uipopovercontroller(contentviewcontrolle-优快云博客

本文介绍如何使用UIPopoverController在iOS应用中实现弹出菜单功能。通过创建内容控制器和导航控制器，设置弹出窗口的尺寸，并从UIBarButtonItem指定位置展示。

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//
//  ViewController.m
//  UIPopoverController的简单使用


#import "ViewController.h"

@interface ViewController ()
- (IBAction)menuClick:(UIBarButtonItem *)sender;
- (IBAction)titleClick:(UIButton *)sender;

//强引用，防止被销毁
@property(nonatomic,strong)UIPopoverController *menuPopover;
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}


- (IBAction)menuClick:(UIBarButtonItem *)sender {
    //1.创建内容控制器
    UIViewController *vc = [[UIViewController alloc] init];
    vc.view.backgroundColor = [UIColor redColor];
    UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:vc];
    
    //2.创建popover
   self.menuPopover = [[UIPopoverController alloc]initWithContentViewController:nav];
    
    //亦可
//    self.menuPopover.contentViewController = [];
    //或者
//    [self.menuPopover setContentViewController:<#(UIViewController *)#> animated:<#(BOOL)#>];
    
    //3.设置尺寸
    self.menuPopover.popoverContentSize = CGSizeMake(200, 300);
    
    //4.显示到哪个位置
    [self.menuPopover presentPopoverFromBarButtonItem:sender permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
    
}

- (IBAction)titleClick:(UIButton *)sender {
}
@end