IOS navigationItem 設定返回按鈕，title圖片和rightBarButtonItem

標籤：

1.自訂返回按鈕

    UIBarButtonItem *backItem = [[UIBarButtonItem alloc] initWithTitle:@"返回" style:UIBarButtonItemStyleBordered target:nil action:nil];

    [self.moreItem setBackgroundImage:[UIImage new] forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];

    [self.navigationItem setBackBarButtonItem:backItem];

    若想使返回按鈕不可用          self.navigationItem.leftBarButtonItem = nil;

2.設定標題圖片

 self.navigationItem.titleView = [[UIImageViewalloc]initWithImage: [[UIImageimageNamed:@"barLogo.png"]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];

3.設定rightBarButtonItem

self.navigationItem.rightBarButtonItem=[[UIBarButtonItemalloc]initWithImage:[UIImageimageNamed:@"MoreImage.png"]style:UIBarButtonItemStylePlaintarget:selfaction:@selector(rightItemPress)];

若想使rightBarButtonItem不可用          self.navigationItem.rightBarButtonItem = nil;

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IOS navigationItem 設定返回按鈕，title圖片和rightBarButtonItem