[新聞] 第三方App動畫在iPhone 13 Pro只能到60Hz

最下方有翻譯總結 1.原文連結： https://bit.ly/3CKhzuF 2.原文標題： 第三方App動畫在iPhone 13 Pro上最高只能用60Hz更新率 Third-party apps limited to 60Hz animations on iPhone 13 Pro 3.原文來源(媒體/作者)： 9to5mac/Benjamin Mayo 4.原文內容： Update: Apple has officially responded that some of the behaviours described bel ow are the result of an OS bug. Full support for 120Hz in third-party apps is co ming soon. Original story below. One of the biggest new features exclusive to the iPhone 13 Pro and iPhone 13 Pro Max this year is the inclusion of high-refresh rate displays, or what Apple cal ls “ProMotion.” That means the iPhone 13 Pro models feature new OLED displays that can refresh t heir screen content at up to 120 times per second, or 120Hz. However, developers receiving their phones today have discovered that, in many circumstances, their animations can only run at 60Hz — the same as the cheaper iPhone 13 and iPhone 13 mini, as well as prior iPhone generations. As it stands with iOS 15.0, ProMotion takes effect in third-party apps when scro lling or doing full-screen transitions. That means that you will still get a ver y fluid and responsive experience when scrolling your Twitter timeline, for inst ance. However, almost all other animations are capped at 60Hz in third-party apps. Thi s includes special effects and animations for custom components. It can be parti cularly jarring for the same third-party app to feature smooth scrolling but the n less-smooth interaction experience elsewhere. Developer of the Apollo Reddit c lient Christian Selig has already reported complaints about this from his custom ers. A workaround hidden plist-key has been discovered that lifts the limit for Scene Kit and SpriteKit based applications, and Dice by PCalc developer James Thomson is currently seeing if it will pass App Review. However, most animations in iOS apps are driven by the Core Animation framework and remain limited to 60Hz, even in the presence of this special undocumented plist entry. Interestingly, these limits do not apply to third-party apps running on the iPad Pro, which has featured a 120Hz display since 2017. Apple appears to have specially carved out these restrictions for the new iPhone models. One source suggested that this had been implemented for battery life re asons. However, we don’t know for sure if that is the case. Perhaps more conspiratorially, examination of iOS 15 code indicates that only th ird-party apps are being constrained. Code in the OS exempts first-party Apple a pps and allows them to run at full 120Hz animation speed all the time. Apple touts ProMotion on the iPhone as an adaptive system that ramps up and ramp s down depending on what the user is doing. For instance, if the screen is dorma nt, the phone can lower itself to a 10Hz refresh rate to save power. However, cu stomers and developers reasonably expected that app animations would be able to take advantage of the 120Hz hardware for super fluid animations, just like they can get with scrolling. Apple’s apps certainly seem allowed to do just that, as all apps can on the iPad Pro, but not third-party apps on the iPhone 13. It’s still possible this is all just a bug in the 15.0 implementation, but it s adly seems unlikely in the presence of the code evidence. We’ve contacted Apple about this situation for clarification and will update if we hear back. 5.心得/評論： 簡短翻譯如下 部份App開發人員發現第三方軟體上的特效與動畫只能上到60Hz，而非120Hz，這種情況可能 令人覺得打開App會有卡頓感。與此同時，iPad Pro上卻沒有此限制 蘋果表示，所有第三方App皆可以充分利用120Hz ProMotion刷新率，但開發者需要新增新的 Info.plist key來聲明他們的App需要使用更高的幀率。相關說明文件蘋果官方會儘快釋出 然後由Core Animation framework驅動的動畫會經由後續更新使其上至120Hz更新率 -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 42.73.199.120 (臺灣) ※ 文章網址: https://www.ptt.cc/bbs/MobileComm/M.1632558445.A.810.html