[英]Custom image for UINavigation Back Button in iOS 7
我有一個自定義UIBarButtonItem
,其圖像在iOS 6.1中運行良好。 但是iOS 7有一個tintColor
,它在我的圖像上覆蓋了這種顏色。 如果我將tintColor
設置為[UIColor clearColor]
該按鈕不會一起顯示。
如何在iOS 7中顯示我的后退按鈕,就像在iOS 6中一樣? 請幫忙?
您應該使用UINavigationBar上的外觀來全局設置自定義后退按鈕。
[UINavigationBar appearance].backIndicatorImage = customBackButton;
[UINavigationBar appearance].backIndicatorTransitionMaskImage = customBackButton;
嘗試在UIBarButtonItem
像這樣設置UIBarButtonItem: -
UIImage *temp = [[UIImage imageNamed:@"theImage"] imageWithRenderingMode: UIImageRenderingModeAlwaysOriginal];
UIBarButtonItem *barButtonItem = [[UIBarButtonItem alloc] initWithImage:temp style:UIBarButtonItemStyleBordered target:self action:@selector(action)];
這是Apple開發中心討論論壇的原創帖子
要同時支持iOS7以及更低system-version
,請檢查system-version
並設置如下代碼: -
UIImage *temp=nil;
if([[[UIDevice currentDevice] systemVersion] floatValue] < 7.0)
{
temp = [UIImage imageNamed:@"btn-back.png"];
}
else
{
temp = [[UIImage imageNamed:@"btn-back.png"] imageWithRenderingMode: UIImageRenderingModeAlwaysOriginal];
}
對於那些不想搞亂現有目標動作等的人來說,以下似乎更有意義。只需復制並粘貼即可。 這也迫使iOS使用您的圖像及其所有的風格 - 而不是簡單地使用圖像的模板/印象。
- (void)setCustomNavigationBackButton
{
UIImage *backBtn = [UIImage imageNamed:@"arrow"];
backBtn = [backBtn imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
self.navigationItem.backBarButtonItem.title=@"";
self.navigationController.navigationBar.backIndicatorImage = backBtn;
self.navigationController.navigationBar.backIndicatorTransitionMaskImage = backBtn;
}
arrow
是圖像的名稱。
swift版本:
var backBtn = UIImage(named: "return_menu")
backBtn = backBtn?.imageWithRenderingMode(UIImageRenderingMode.AlwaysOriginal)
self.navigationController!.navigationBar.backIndicatorImage = backBtn;
self.navigationController!.navigationBar.backIndicatorTransitionMaskImage = backBtn;
試試這種方式:
self.navigationItem.backBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"" style:UIBarButtonItemStyleBordered target:nil action:nil];
self.navigationController.navigationBar.backIndicatorImage = [UIImage imageNamed:@"yourImageName.png"];
self.navigationController.navigationBar.backIndicatorTransitionMaskImage = [UIImage imageNamed:@"yourImageName.png"];
這將在全局色調顏色中創建一個圖像蒙版,它將為您提供自己的自定義圖標。 不適用於彩色圖像。
//向BUTTON添加圖像
UIButton *refreshButton = [UIButton buttonWithType:UIButtonTypeCustom];
[refreshButton setFrame:CGRectMake(0,0,30,30)];
refreshButton.userInteractionEnabled = YES;
[refreshButton setImage:[UIImage imageNamed:@"yourimage.jpg"] forState:UIControlStateNormal];
// ASSIGNING THE BUTTON WITH IMAGE TO BACK BAR BUTTON
UIBarButtonItem *refreshBarButton = [[[UIBarButtonItem alloc] initWithCustomView:refreshButton] autorelease];
self.navigationItem.leftBarButtonItem = refreshBarButton;
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