(在这里交叉发布我的答案:https://stackoverflow.com/a/25775147/798533)

对于任何想要上传图像分辨率的人(如果你想创建一些花哨的photoshop截图)，它们是:

iPhone 6: 750 × 1334 iPhone 6 Plus: 1242 × 2208

这里有很好的参考指南:http://www.paintcodeapp.com/news/iphone-6-screens-demystified(谈论iPhone 6+的分辨率和下采样)。

为了获得适当大小的屏幕截图，而无需手动创建它们——在最新版本的Xcode中运行你的应用，并选择你需要截图的iPhone，然后在查看模拟器时点击cmd-s。这将保存一个完整分辨率的截图到你的桌面，你需要提交。

正如下面@HoffZ所指出的，确保比例设置为100%。

在Xcode中选择模拟器:

在模拟器菜单中将比例设置为100%:

按cmd-s保存:

对于xcode 11.1，不包含iPad pro iPad Pro (2nd Gen) 12.9" Display在终端运行此命令

xrun simctl创建iPad Pro(12.9英寸)(第二代)“com.apple.CoreSimulator.SimDeviceType。iPad-Pro——12-9-inch 2 nd-generation - com.apple.CoreSimulator.SimRuntime.iOS-13-1”

看这里

iPhone需要6.5 inc(1242 x 2688) - 5.5 inc(1242 x 2208)

12.9 inc(2048 x 2732)的iPad

你可以得到所有的inc和piksel大小 从链接

iTunes connect可接受以下分辨率:

iPhone 3+4 (3.5 Inch) 640 x 960 iPhone 5, iPhone 5S, iPhone 5C (4 Inch) 640 x 1136 iPhone 6, iPhone 6S, iPhone 7, iPhone 8 (4.7 Inch) 750 x 1334 iPhone 6 Plus, iPhone 6S Plus, iPhone 7 Plus, iPhone 8 Plus (5.5 Inch) 1242 x 2208 You need the screenshot in this resolution, the phone scales them down to 1080 x 1920 iPhone X (5.8 Inch) 1125 x 2436 iPhone XR (6.1 Inch) 828 x 1792 iPhone XS (5.8 Inch) 1125 x 2436 iPhone XS Max (6.5 Inch) 1242 x 2688 iPad Mini 2, iPad Mini 3, iPad Mini 4 (7.9 Inch) 1536 x 2048 iPad 3, iPad 4, iPad Pro, iPad Air, iPad Air 2 (9.7 Inch) 1536 x 2048 iPad Pro (10.5 Inch) 1668 x 2224 iPad Pro (12.9 Inch) 2048 x 2732 Apple Watch Series 1, Apple Watch Series 2, Apple Watch Series 3 - 38mm (1.5 Inch) 272 x 340 Apple Watch Series 4 - 40mm (1.57 Inch) 394 x 324 Apple Watch Series 1, Apple Watch Series 2, Apple Watch Series 3 - 42mm (1.65 Inch) 312 x 390 Apple Watch Series 4 - 44mm (1.78 Inch) 448 x 368

甚至苹果关于此事的文件也不完整。

更新:苹果公司推出了一个新的媒体管理器，它只需要你为最大的iPhone和/或iPad设备创建艺术品。将为您创建较小的图像。请注意，如果您以前没有创建iPad Pro图像，那么现在必须创建(如果您支持iPad)。

更新:现在支持新设备的截图和应用程序预览。

截至2017年6月14日更新，来源如下: http://help.apple.com/itunes-connect/developer/#/devd274dd925

截图说明

5.5-Inch Retina Display 1242 x 2208 pixels for portrait 2208 x 1242 pixels for landscape 4.7-Inch Retina Display 750 x 1334 pixels for portrait 1334 x 750 pixels for landscape 4-Inch Retina Display 640 x 1096 pixels for portrait (without status bar) 640 x 1136 pixels for portrait (full screen) 1136 x 600 pixels for landscape (without status bar) 1136 x 640 pixels for landscape (full screen) 3.5-Inch Retina Display 640 x 920 pixels for portrait (without status bar) 640 x 960 pixels for portrait (full screen) 960 x 600 pixels for landscape (without status bar) 960 x 640 pixels for landscape (full screen) 12.9-Inch Retina Display 2048 x 2732 pixels for portrait 2732 x 2048 pixels for landscape 9.7-Inch Retina Display High Resolution: 2048 x 1496 pixels for landscape (without status bar) 2048 x 1536 pixels for landscape (full screen) 1536 x 2008 pixels for portrait (without status bar) 1536 x 2048 pixels for portrait (full screen) Standard resolution: 1024 x 748 pixels for landscape (without status bar) 1024 x 768 pixels for landscape (full screen) 768 x 1004 pixels for portrait (without status bar) 768 x 1024 pixels for portrait (full screen) macOS One of the following, with a 16:10 aspect ratio. 1280 x 800 pixels 1440 x 900 pixels 2560 x 1600 pixels 2880 x 1800 pixels tvOS 1920 x 1080 pixels watchOS 312 x 390 pixels