UINavigationBar美化

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#import "ViewController.h"@interface ViewController ()@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];        self.title=@"第一个界面";    //统一设置背景    [self.navigationController.navigationBar setBackgroundImage:[UIImage imageNamed:@"bg.png"] forBarMetrics:UIBarMetricsDefault];        //设置由该界面启动的新界面的导航返回提示信息    self.navigationItem.backBarButtonItem=[[UIBarButtonItem alloc]initWithTitle:@"返回到第一个" style:UIBarButtonItemStylePlain target:nil action:nil];    }

@implementation ViewController2- (void)viewDidLoad {    [super viewDidLoad];        self.title=@"第2个";        //添加右面按钮，    self.navigationItem.rightBarButtonItem=[[UIBarButtonItem alloc]initWithTitle:@"完成" style:UIBarButtonItemStylePlain target:self action:@selector(right:)];            //添加多个右面按钮//    self.navigationItem.rightBarButtonItems=@[];       UIBarButtonItem* tool= [[UIBarButtonItem alloc]initWithTitle:@"botttom" style:UIBarButtonItemStylePlain target:nil action:nil];            //设置底部toolbar显示    self.navigationController.toolbarHidden=NO;            //添加多个    self.toolbarItems=@[tool];}-(IBAction)right:(id)sender{    NSLog(@"right....");}

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