Question

我正在尝试覆盖不同的背景图像以在我的应用程序上运行。我用过这个问题的代码; set background images for Iphone 3g, Iphone 4s and Iphone 5

谢天谢地，代码很简单。我还在.m文件中设置这些以防万一。

.h

@property (retain strong) UIImage* Image 

@property (retain, strong) UIImageView.

的.m

@interface ViewController ()

@end

@implementation ViewController

//SYNTHESIZE JUST IN CASE

@synthesize backgroundImageView=backgroundImageView;
@synthesize Image=Image;

- (void)viewDidLoad

{

//SETS A UIIMAGEVIEW TO BE SET TO A CUSTOM UIIMAGE (JPG)

UIImageView *backgroundImageView = [[UIImageView alloc] initWithImage:Image];
[backgroundImageView setFrame:[[self view] bounds]];
[[self view] addSubview:backgroundImageView];

//I EXCPECTED THIS NEXT LINE OF CODE TO WORK TO SET A SEPARATE BACKGROUND FOR IPAD...

UIImage *Image = [[UIImage alloc]init];
if ([[UIScreen mainScreen] bounds].size.height == 568) {
    Image = [UIImage imageNamed:@"11@2x.jpg"];
}
else

//THIS ELSE STATEMENT IS THE IMAGE THAT ACTUALLY RASTERIZES FOR BOTH IPAD AND IPOD TEST DEVICES

{
    Image = [UIImage imageNamed:@"7@2x.jpg"];
}

self.view.backgroundColor = [UIColor colorWithPatternImage:Image];


[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}

覆盖功能并不像预期的那样有效。无论我在if语句中设置什么图像，都只运行else语句。

我的问题; if语句中的尺寸（568）是否正确光栅化iPad设备的单独图像？如果没有，请告诉我，谢谢。

其他信息：部署目标：6.1 附加信息：我在运行时收到错误（即使它仍然运行）类似于我的笔尖文件和故事板之间的差异。我不是在使用笔尖。？

Answer 1

以下是正确的值：

if ([[UIScreen mainScreen] bounds].size.height == 480) {
    // iPhone, iPod Touch
}

if ([[UIScreen mainScreen] bounds].size.height == 568) {
    // iPhone 5
}

if ([[UIScreen mainScreen] bounds].size.height == 750) {
    // iPhone 6
}

if ([[UIScreen mainScreen] bounds].size.height == 1024) {
    // iPad
}

if ([[UIScreen mainScreen] bounds].size.height == 1242) {
    // iPhone 6 Plus
}

iPhone [UIScreen mainScreen] bounds] {{0, 0}, {320, 480}}
iPhone 5 [UIScreen mainScreen] bounds] {{0, 0}, {320, 568}}
iPhone 6 [UIScreen mainScreen] bounds] {{0, 0}, {750, 1334}}
iPad [UIScreen mainScreen] bounds] {{0, 0}, {768, 1024}}
iPhone 6 Plus [UIScreen mainScreen] bounds] {{0, 0}, {1242, 2208}}

修改：添加了iPhone 6和6 Plus按照Jules'评论维护此列表，但不建议使用此方法区分手机甚至选择正确的形象。

正确方法

使用资产目录。

设置iPod，iPhone和iPad的背景图像？

1 个答案: