iphone-RightBarButtonItem的問題

RightBarButtonItem的問題

在NavigationBar 中有一個編輯按鈕Edit Button，點擊跳轉“done”。把Edit和Done變為大寫字母，有人知道怎麼實現嗎？謝謝

self.navigationItem.rightBarButtonItem = self.editButtonItem;

最佳回答：

.h文件中創建UIBarButtonItem的btnEdit對象：

UIBarButtonItem *btnEdit;

.m中：

-(void)viewWillAppear:(BOOL)animated{
    btnEdit = [[UIBarButtonItem alloc]init];
    btnEdit.target = self;
    btnEdit.action = @selector(btnEdit_Click:);
    btnEdit.title = @"EDIT";
    self.navigationController.topViewController.navigationItem.rightBarButtonItem = btnEdit;
    btnEdit.enabled=TRUE;
 }

-(IBAction)btnEdit_Click:(id)sender
{
    if ([btnEdit.title isEqualToString:@"EDIT"]) 
    {
        [btnEdit setTitle:@"DONE"]; 
    }
    else 
    {
        [btnEdit setTitle:@"EDIT"];   
    }
}