ios - 定义大于 iPhone 6 屏幕尺寸？

Question

我正在使用根据设备显示特定 xib 文件的代码，目前有 3 个 xib，一个用于 iPhone4，一个用于 iPhone5，一个用于 iPad。

自 iOS8/iPhone 6 以来，由于 xib 不知道要加载什么，该应用程序无法在高于 5s 的任何设备上运行；

- (IBAction)btnTapForStart:(id)sender {

    fromOtherClass=YES;

    if([[UIScreen mainScreen]bounds].size.height == 568)
    {
        PlayMusicViewController *pmvc = [[PlayMusicViewController alloc]initWithNibName:@"XibForIPhone5" bundle:[NSBundle mainBundle]];

        [self.navigationController pushViewController:pmvc animated:YES];

    }
    else
    {
        PlayMusicViewController *pmvc = [[PlayMusicViewController alloc]init];

        [self.navigationController pushViewController:pmvc animated:YES];
    }

    [appObject.audioPlayer stop];
}

如果我将 568 的值更改为更高的值，它会起作用，但是有没有办法组合它，例如，高度是 568 或 iPhone6 尺寸或 iPhone 6 加大尺寸等？

Answer 1

您可能应该像 Maddy 所说的那样使用自动布局，但是如果您希望拥有适用于特定设备的代码，那么您可能希望实现此实用程序方法。然后，您可以根据需要创建任意数量的 xib，并将它们定位到特定设备。例如

if ([[Utilities deviceType] isEqualToString:@"iPhone Retina4"] || [[Utilities deviceType] isEqualToString:@"iPhone Retina35"] ) {
   -- do something specific for these phones
}

我把这个方法放在 Utilities 类中。

+ (NSString *)deviceType {
    NSString *device = nil;
    CGSize screenSize = [[UIScreen mainScreen] bounds].size;
    CGFloat deviceScale = [UIScreen mainScreen].scale;

    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) {
        device = @"iPhone Classic"; // 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 = @"iPhone Classic";
        // Retina has a resolution of 960 × 640
        } else if( (screenSize.height == 480 || screenSize.width == 480) && deviceScale == 2.0f ) {
            device = @"iPhone Retina35";
        // Retina 4" has a resolution of 1136 x 640
        } else if (screenSize.height == 568 || screenSize.width == 568 ) {
            device = @"iPhone Retina4";
        // iPhone 6 has a resolution of 1334 by 750
        } else if (screenSize.height == 667 || screenSize.width == 667 ) {
            device = @"iPhone 6";
        // 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 = @"iPhone 6 Plus";
        }

    } else if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
        device = @"iPad Classic"; // Just in case it doesn't make it through the conditionals
        if(deviceScale == 1.0f) {
            device = @"iPad Classic";
        } else if (deviceScale == 2.0f) {
            device = @"iPad Retina";
        }
    }
    //NSLog(@"The device is %@ scale is %f and the height is %f and width is %f", device, deviceScale, screenSize.height, screenSize.width);

    return device;
}