我是 iOS 编程的新手。我为 iPhone 视网膜 4 英寸做了一个应用程序。现在我想自定义我的代码，以便它在 iPhone 视网膜 3.5 英寸和 iPhone 5 上运行。
我尝试为self.view.frame.size.widthand创建一个 if 查询self.view.frame.size.height，但出现“不可分配”错误。
谁能告诉我如何指定在所有设备中很好地设置工作区的条件？如果可能的话，请给我所有这些设备的确切屏幕尺寸。
问问题
213 次
6 回答
2
You look at the device's screen size (in points) and from that surmise if it's an iPad or iPhone etc., and then use hard-coded values for the screen sizes.
Here's some code to get the screen size:
CGRect screenRect = [[UIScreen mainScreen] bounds];
CGFloat screenWidth = screenRect.size.width;
CGFloat screenHeight = screenRect.size.height;
Be aware that width and height might be swapped, depending on device orientation.
于 2013-11-15T11:54:34.380 回答
2
你可以使用这个：
CGRect screenBound = [[UIScreen mainScreen] bounds];
CGSize screenSize = screenBound.size;
CGFloat screenWidth = screenSize.width;
CGFloat screenHeight = screenSize.height;
于 2013-11-15T10:58:45.470 回答
0
在支持文件夹中的 project-Prefix.pch 文件中使用此代码。
#define IS_IPHONE_SIMULATOR ([[[UIDevice currentDevice]model]
isEqualToString : @"iPhone Simulator"])
#define IS_IPHONE ([[[UIDevice currentDevice]model] isEqualToString : @"iPhone"])
#define IS_IPOD_TOUCH ([[[UIDevice currentDevice]model] isEqualToString : @"iPod Touch"])
#define IS_HEIGHT_GTE_568 [[UIScreen mainScreen ] bounds].size.height >= 568.0f
#define ITS_IPHONE5 ( IS_HEIGHT_GTE_568 )
复制并粘贴此代码，然后在您的 .m 文件中通过我给您的第一个代码...不需要在 viewdidload 上写大小只写在这些婴儿床中
if (IS_IPAD)
{
}
else if(IS_IPHONE)
{
if ([[UIScreen mainScreen] bounds].size.height == 568)
{
}
else
{
}
}
于 2013-11-15T11:44:19.880 回答
0
比较屏幕大小包括这个宏并在必要时使用它
#define isPhone5 ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone && [UIScreen mainScreen].bounds.size.height == 568)
如果您只想比较屏幕尺寸，则将上述宏减少到
#define isiPhone5 ([[UIScreen mainScreen] bounds].size.height == 568)?TRUE:FALSE
例如在您的.m文件
中
#import "ViewController.h"
#define isiPhone5 ([[UIScreen mainScreen] bounds].size.height == 568)?TRUE:FALSE //hear u put the macro and use it anywhere in this file
@interface ViewController ()<FootballPlayerDelegate>//confirms to this delegate
@end
@implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
if(isiPhone5)
{
NSLog(@"I am 4inch screen");
}
else
{
NSLog(@"I am 3.5inch screen");
}
// Do any additional setup after loading the view, typically from a nib.
}
于 2013-11-15T10:53:32.113 回答
0
试试这个在你的 .M 文件中：
-(void)viewWillAppear:(BOOL)animated
{
[self willAnimateRotationToInterfaceOrientation:[UIApplication sharedApplication].statusBarOrientation duration:1.0];
UIInterfaceOrientation orientation = [UIApplication sharedApplication].statusBarOrientation;
if(orientation == UIInterfaceOrientationLandscapeRight || orientation == UIInterfaceOrientationLandscapeLeft)
{
[self setFrameForLeftAndRightOrientation];
}
else if(orientation == UIInterfaceOrientationPortrait )
{
[self setFrameForPortraitAndUpsideDownOrientation];
}
}
- (void)willAnimateRotationToInterfaceOrientation:
(UIInterfaceOrientation)toInterfaceOrientation
duration:(NSTimeInterval)duration
{
if (toInterfaceOrientation == UIInterfaceOrientationLandscapeLeft || toInterfaceOrientation == UIInterfaceOrientationLandscapeRight)
{
[self setFrameForLeftAndRightOrientation];
}
else if (toInterfaceOrientation == UIInterfaceOrientationPortrait)
{
[self setFrameForPortraitAndUpsideDownOrientation];
}
}
-(void)setFrameForLeftAndRightOrientation
{
if(IS_IPAD)
{
//Write here code for iPad (Landscape mode)
}
else if(IS_IPHONE)
{
if ([[UIScreen mainScreen] bounds].size.height == 568)
{
//Write code here for iPhone 5 (Landscape mode)
}
else
{
//Write code here for iPhone(3.5 inch) (Landscape mode)
}
}
}
-(void)setFrameForPortraitAndUpsideDownOrientation
{
if(IS_IPAD)
{
}
else if(IS_IPHONE)
{
if ([[UIScreen mainScreen] bounds].size.height == 568)
{
}
else
{
}
}
}
于 2013-11-15T11:04:21.617 回答
0
#define IS_IPHONE_SIMULATOR ([[[UIDevice currentDevice]model] isEqualToString : @"iPhone Simulator"])
#define IS_IPHONE ([[[UIDevice currentDevice]model] isEqualToString : @"iPhone"])
#define IS_IPOD_TOUCH ([[[UIDevice currentDevice]model] isEqualToString : @"iPod Touch"])
#define IS_HEIGHT_GTE_568 [[UIScreen mainScreen ] bounds].size.height >= 568.0f
#define ITS_IPHONE5 ( IS_HEIGHT_GTE_568 )
if (ITS_IPHONE5)
{
}
else
{
}
于 2013-11-15T11:18:30.490 回答