Iphone 在UINavigationBar中更改背景图像
我想在下面的代码中更改导航栏中的背景图像Iphone 在UINavigationBar中更改背景图像,iphone,uinavigationcontroller,uiimage,uinavigationbar,frame,Iphone,Uinavigationcontroller,Uiimage,Uinavigationbar,Frame,我想在下面的代码中更改导航栏中的背景图像 UINavigationBar *navBar = self.navigationController.navigationBar; UIImageView *image1=[[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 320, 50)]; image1.image = [UIImage imageNamed:@"image2_ram.jpg"]; [navBar setBackgroundIm
UINavigationBar *navBar = self.navigationController.navigationBar;
UIImageView *image1=[[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 320, 50)];
image1.image = [UIImage imageNamed:@"image2_ram.jpg"];
[navBar setBackgroundImage:image1.image forBarMetrics:UIBarMetricsDefault];
图像已更改,但图像的高度未更改。为什么?如果您也在考虑iOS 4.0,则不应这样设置 用这个
@implementation UINavigationBar (CustomImage)
- (void)drawRect:(CGRect)rect {
UIImage *image = [UIImage imageNamed:@"bgTopBar.png"];
[image drawInRect:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height)];
}
@end
还是iOS 5
使用此选项,无需为其指定框架,并且您不能更改超过44的高度,导航栏的默认高度为44
UINavigationBar *navBar = self.navigationController.navigationBar;
UIImage *image = [UIImage imageNamed:@"bgTopBar.png"];
[navBar setBackgroundImage:image forBarMetrics:UIBarMetricsDefault];
你们所说的图像高度是什么意思?