如何检测用户是否具有标准或缩放模式的iPhone 6 Plus？

Question

如何检测用户是否具有标准或缩放模式的iPhone 6 Plus？这可能吗？

在两种情况下,我都尝试过[UIScreen mainScreen].scale它3.0.

Answer 1

工作解决方案：

//Display Zoom mode
var isZoomed: Bool {
    return UIScreen.main.scale < UIScreen.main.nativeScale
}

旧解决方案（在某些边缘情况下不可靠）：

var isZoomed: Bool { return UIScreen.main.scale != UIScreen.main.nativeScale }

PS：请不要混淆 iPhone 设置中的这些功能：

1. Settings -> Display & Brightness -> Display Zoom

和：

2. Settings -> Accessibility -> Zoom。

这里我们检查第一种类型。

Answer 2

有一个新成员

[[UIScreen mainScreen] nativeScale]

哪个应该做你想要的.它仅适用于iOS 8,因此您需要保护它

Answer 3

下面的代码可以被用来获取bounds,coordinateSpace,nativeScale和scale,即在iPhone 6加上nativeScale是2.608,并且当在缩放模式下运行该设备是2.88(注意,这是不同的模拟器):

UIScreen *mainScreen = [UIScreen mainScreen];
NSLog(@"Screen bounds: %@, Screen resolution: %@, scale: %f, nativeScale: %f",
          NSStringFromCGRect(mainScreen.bounds), mainScreen.coordinateSpace, mainScreen.scale, mainScreen.nativeScale);

检测iPhone 6 Plus的代码:

-(BOOL)iPhone6PlusDevice{
    // Scale is 3 currently only for iPhone 6 Plus
    if ([UIScreen mainScreen].scale > 2.9) return YES;
    return NO;
}

要么

 -(BOOL)iPhone6PlusUnZoomed{
        if ([self iPhone6PlusDevice]){
            if ([UIScreen mainScreen].bounds.size.height > 720.0) return YES;  // Height is 736, but 667 when zoomed.
        }
        return NO;
    }

注意:如果您要检查iPhone 6 Plus,要调整用户界面,请不要依赖.nativeScale,因为模拟器和实际设备会给出不同的结果.

Answer 4

[UIScreen mainScreen].currentMode 报告:

<UIScreenMode: 0x17802f240; size = 1242.000000 x 2208.000000> // STANDARD
<UIScreenMode: 0x178226be0; size = 1125.000000 x 2001.000000> // ZOOMED

Answer 5

更新了PaulaChavarría 对iOS 8 的答案([UIScreen mainScreen].bounds.size取决于方向)的宏:

#define IS_OS_8_OR_LATER ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
#define IS_IPAD (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
#define IS_IPHONE (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)
#define IS_IPHONE_5 (IS_IPHONE && (MAX([[UIScreen mainScreen] bounds].size.height, [[UIScreen mainScreen] bounds].size.width) == 568.0) && ((IS_OS_8_OR_LATER && [UIScreen mainScreen].nativeScale == [UIScreen mainScreen].scale) || !IS_OS_8_OR_LATER))
#define IS_STANDARD_IPHONE_6 (IS_IPHONE && MAX([[UIScreen mainScreen] bounds].size.height, [[UIScreen mainScreen] bounds].size.width) == 667.0  && IS_OS_8_OR_LATER && [UIScreen mainScreen].nativeScale == [UIScreen mainScreen].scale)
#define IS_ZOOMED_IPHONE_6 (IS_IPHONE && MAX([[UIScreen mainScreen] bounds].size.height, [[UIScreen mainScreen] bounds].size.width) == 568.0 && IS_OS_8_OR_LATER && [UIScreen mainScreen].nativeScale > [UIScreen mainScreen].scale)
#define IS_STANDARD_IPHONE_6_PLUS (IS_IPHONE && MAX([[UIScreen mainScreen] bounds].size.height, [[UIScreen mainScreen] bounds].size.width) == 736.0)
#define IS_ZOOMED_IPHONE_6_PLUS (IS_IPHONE && MAX([[UIScreen mainScreen] bounds].size.height, [[UIScreen mainScreen] bounds].size.width) == 667.0 && IS_OS_8_OR_LATER && [UIScreen mainScreen].nativeScale < [UIScreen mainScreen].scale)
#define IS_IPHONE_6 (IS_STANDARD_IPHONE_6 || IS_ZOOMED_IPHONE_6)
#define IS_IPHONE_6_PLUS (IS_STANDARD_IPHONE_6_PLUS || IS_ZOOMED_IPHONE_6_PLUS)

Answer 6

这些选项用于检测iPhone设备.

#define IS_IPAD (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
#define IS_IPHONE (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)
#define IS_IPHONE_5 (IS_IPHONE && [[UIScreen mainScreen] bounds].size.height == 568.0)
#define IS_IPHONE_6 (IS_IPHONE && [[UIScreen mainScreen] bounds].size.height == 667.0)
#define IS_IPHONE_6PLUS (IS_IPHONE && [[UIScreen mainScreen] nativeScale] == 3.0f)
#define IS_IPHONE_6_PLUS (IS_IPHONE && [[UIScreen mainScreen] bounds].size.height == 736.0)
#define IS_RETINA ([[UIScreen mainScreen] scale] == 2.0)