ios 导航栏 点击barbutton的按钮 下拉列表

环境：xocde5.0.2+ios7.0.1

1、导航栏 ----点击科目--------下拉列表

代码：NGRightTableViewViewController.h

#import <UIKit/UIKit.h>
@protocol PulldownMenuDelegate
-(void)menuItemSelected:(NSIndexPath *)indexPath;
-(void)pullDownAnimated:(BOOL)open;
@end

@interface NGRightTableViewViewController : UITableViewController<UITableViewDataSource,UITableViewDelegate>{
 id<PulldownMenuDelegate> pulldelegate;

}

@property (nonatomic, retain) id<PulldownMenuDelegate> pulldelegate;
@property (nonatomic,strong) NSMutableArray *tableViewArray;
@property (nonatomic,strong) NSString *cellString;

-(NSString *) cellString;
@end

NGViewController.h的代码：

#import <UIKit/UIKit.h>
#import "NGRightTableViewViewController.h"
@interface NGViewController : UIViewController<PulldownMenuDelegate>
//- (IBAction)jumpBut:(id)sender;

@property (nonatomic, retain) NGRightTableViewViewController *rtvv;
@end

.m部分代码：

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
//    UINavigationController *nav=[[UINavigationController alloc]initWithRootViewController:viewController];
    
    mArray=[[NSMutableArray alloc] initWithObjects:@"uuuuuu",@"qqqu",@"qqqq",@"rrrr",@"yyyyy", nil];
    
    UIButton *secondBut=[[UIButton alloc] initWithFrame:CGRectMake(120, 340, 40, 40)];
    [secondBut setTintColor:[UIColor blueColor]];
    [secondBut setTitle:@"第二" forState:UIControlStateNormal];
    [secondBut setTitleColor:[UIColor redColor] forState:UIControlStateNormal];
    secondBut.titleLabel.font = [UIFont fontWithName:@"System-Bold" size:25.0f];
    [secondBut addTarget:self action:@selector(jumpBut:) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:secondBut];
    
    
    UIBarButtonItem *leftBarBtn = [[UIBarButtonItem alloc] initWithTitle:@"触摸" style:UIBarButtonItemStyleBordered target:self action:@selector(leftBarBtnClicked:)];
    self.navigationItem.leftBarButtonItem = leftBarBtn;
    
    UIBarButtonItem *rightBarBtn = [[UIBarButtonItem alloc] initWithTitle:@"科目" style:UIBarButtonItemStyleBordered target:self action:@selector(rightBarBtnClicked:)];
    self.navigationItem.rightBarButtonItem = rightBarBtn;
    if (rtvv==nil) {
        rtvv=[[NGRightTableViewViewController alloc] init];

    }
    rtvv.tableViewArray=mArray;
//    rtvv.view.frame=CGRectMake(0, 0, 320, 300);
    rtvv.view.frame=CGRectMake(150, 64, 165, 120);
    [self addChildViewController:rtvv];
    [self.view addSubview:rtvv.view];
    rtvv.pulldelegate=self;
    [rtvv.view setHidden:YES];
//    [self.view presentedViewController:rtvv.view];
    
//    [self.. reloadData];
   
}

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另外有：textField相应keywoard的高度自己主动适应： http://download.csdn.net/detail/shuang60/7927929