使用系統(tǒng)自帶的方法實(shí)現(xiàn),非第三方庫,前提iOS8以后才能使用
實(shí)現(xiàn)步驟:
1.創(chuàng)建導(dǎo)航條的右邊按鈕
- (void)viewDidLoad {
[super viewDidLoad];
// 右邊
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(rightBarAction)];
}
#pragma mark -- 菜單
// 菜單 點(diǎn)擊按鈕調(diào)用的方法
- (void)rightBarAction {
self.itemPopVC = [[WMPopoverController alloc] init];
self.itemPopVC.modalPresentationStyle = UIModalPresentationPopover;
self.itemPopVC.popoverPresentationController.barButtonItem = self.navigationItem.rightBarButtonItem;
//箭頭方向
self.itemPopVC.popoverPresentationController.permittedArrowDirections = UIPopoverArrowDirectionUp;
//代理
self.itemPopVC.popoverPresentationController.delegate = self;
[self presentViewController:self.itemPopVC animated:YES completion:nil];
}
- (UIModalPresentationStyle)adaptivePresentationStyleForPresentationController:(UIPresentationController *)controller {
NSLog(@"%@",controller);
return UIModalPresentationNone;
}
- 2.創(chuàng)建類==就是菜單視圖
- .h文件
#import <UIKit/UIKit.h>
@interface WMPopoverController : UITableViewController
@end
- .m文件
#import "WMPopoverController.h"
@interface WMPopoverController ()
@property (nonatomic, strong) NSMutableArray *addArray;
@end
@implementation WMPopoverController
- (void)viewDidLoad {
[super viewDidLoad];
self.tableView.scrollEnabled = NO;
self.addArray = [[NSMutableArray alloc] initWithObjects:@"掃一掃",@"搜一搜", @"創(chuàng)建討論組",@"發(fā)送到電腦", @"面對面快傳",@"收錢", nil];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
return self.addArray.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *identifer = @"cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifer];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:identifer];
}
cell.textLabel.text = [NSString stringWithFormat:@"%@", self.addArray[indexPath.row]];
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
NSInteger number = indexPath.row;
switch (number) {
case 0:
NSLog(@"掃一掃");
break;
case 1:
NSLog(@"搜一搜");
break;
default:
break;
}
}
//重寫preferredContentSize，返回popover的大小
- (CGSize)preferredContentSize {
if (self.presentingViewController && self.tableView != nil) {
CGSize tempSize = self.presentingViewController.view.bounds.size;
tempSize.width = 150;
CGSize size = [self.tableView sizeThatFits:tempSize]; //sizeThatFits返回的是最合適的尺寸，但不會改變控件的大小
return size;
}else {
return [super preferredContentSize];
}
}
@end
效果圖
