我做了一些关于枚举的研究,他们很好。它们使代码更具可读性,但大多数情况下它们允许编译器帮助您键入并捕获错误。 Xcode会自动完成你的设备类型,并会给你错误:如果你尝试使用未定义的值,则使用未声明的标识符。这里的代码被重写为一个枚举。我用LF前缀了这些值,但是您应该使用适合您项目的内容。
这是我的头文件
// Devices as of Fall 2014
typedef NS_ENUM(NSInteger, LFdeviceType) {
LFDeviceTypePhoneClassic,
LFDeviceTypePhoneRetina3_5,
LFDeviceTypePhoneRetina4,
LFDeviceTypePhone6,
LFDeviceTypePhone6Plus,
LFDeviceTypePadClassic,
LFDeviceTypePadRetina,
};
而且这是在我的.m文件。
m+ (NSInteger)deviceType {
CGSize screenSize = [[UIScreen mainScreen] bounds].size;
CGFloat deviceScale = [UIScreen mainScreen].scale;
LFdeviceType device = LFDeviceTypePhoneClassic;
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) {
device = LFDeviceTypePhoneClassic; // Just in case it doesn't make it through the conditionals
// Classic has a resolution of 480 × 320
if((screenSize.height == 480 || screenSize.width == 480) && deviceScale == 1.0f) {
device = LFDeviceTypePhoneClassic;
// Retina has a resolution of 960 × 640
} else if((screenSize.height == 480 || screenSize.width == 480) && deviceScale == 2.0f) {
device = LFDeviceTypePhoneRetina3_5;
// Retina 4" has a resolution of 1136 x 640
} else if (screenSize.height == 568 || screenSize.width == 568) {
device = LFDeviceTypePhoneRetina4;
// iPhone 6 has a resolution of 1334 by 750
} else if (screenSize.height == 667 || screenSize.width == 667) {
device = LFDeviceTypePhone6;
// iPhone 6 Plus has an actual size of 2208 × 1242 and resolution of 1920 by 1080
// Reported size is 736 x 414
} else if (screenSize.height == 736 || screenSize.width == 736) {
device = LFDeviceTypePhone6Plus;
}
} else if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
device = LFDeviceTypePadClassic; // Just in case it doesn't make it through the conditionals
if(deviceScale == 1.0f) {
device = LFDeviceTypePadClassic;
} else if (deviceScale == 2.0f) {
device = LFDeviceTypePadRetina;
}
}
//NSLog(@"The device is %@ scale is %f and the height is %f and width is %f", device, deviceScale, screenSize.height, screenSize.width);
return device;
}
这样称呼它:
if (( [Utilities deviceType] == LFDeviceTypePhoneClassic
|| [Utilities deviceType] == LFDeviceTypePhoneRetina3_5) &&
numberOfFoilsOnScreen > 7) {
numberOfFoilsOnScreen = 7;
}
为什么你有多个xibs?只需使用一个用于所有设备(可能是iPad的第二个)。使用自动布局和约束来正确地确定所有尺寸和位置。 – rmaddy 2014-10-16 15:45:52
我最初并没有编写代码,只是希望解决它,所以它适用于那些有应用程序并使用iPhone 6/6 Plus的人,我可以担心之后改进代码,但这是一个更紧急的解决方法。 .. 感谢谁标记了这个答案也... – user3355723 2014-10-16 15:52:17
那么你的问题是什么?你想为iPhone 6使用iPhone 5 xib吗?还是你有另一个特定于iPhone 6的xib? – rmaddy 2014-10-16 15:53:58