With respond() methods, the foundation model works well enough. With streamResponse() methods, the responses are very repetitive, verbose, and messy. My app with foundation model uses more than 500 MB memory on an iPad Pro when running from Xcode. Devices supporting Apple Intelligence have at least 8GB memory. Should Apple use a bigger model (using 3 ~ 4 GB memory) for better stream responses?

I get the following dyld error on an iPad Pro with Xcode 26 beta 4: Symbol not found: _$s16FoundationModels20LanguageModelSessionC7prewarm12promptPrefixyAA6PromptVSg_tF Any advice?

How to block a sender in iMessage in iOS 15?

When testing an auto-renewable subscription with StoreKit 2 in Xcode 13 beta 3, the purchase transaction revocationDate is 2001-01-01, which prevents the app to verify the subscription. It should be nil, since there is no simulation of refunding or revocation in the test. Is it a bug in StoreKit 2?

I'm trying to measure light quality with the camera, not to capture good looking photos. How do I get raw camera sensor data, without processing such as white balance? If I lock white balance mode when setting up capture session as following, will white balance be turned off during the session? if device.isWhiteBalanceModeSupported(.locked) { device.whiteBalanceMode = .locked }

How to get current time in a widget (like the builtin clock widget), to update the widget based on the current time, since a widget is supposed to provide timely info?

It seems an overlay is limited to the size of the base view. How to remove the limit? baseView.overlay {overlayView}

How to create a chart where each data mark has a color based on its value? Like this chart: https://observablehq.com/@d3/gradient-encoding With the following code, the whole curve has one color only. My function Color.forTemperature() returns different colors for different temperatures. Chart(temperatures) { temperature in LineMark(     x: .value("Day", temperature.date, unit: .day),         y: .value("Temperature", temperature.value)     ) .foregroundStyle(Color.forTemperature(temperature.value)) }

Is there a programming example for CameraView?

My app supports English and another language. The English string catalog is empty. Running the app in English in Xcode 15 beta 3, all strings are displayed in capital letters. It seems the behavior when translations are missing. Do we need to translate each English key into the same English translation, or is it a bug?

With the following in an iOS and watch app import Observation @Observable final class DataModel { var common = 0 #if os(iOS) var iProp = 0 #endif } Xcode 15 beta 5 reports error: Cannot find type '_iProp' in scope Is platform specific property forbidden in Observable objects?

I keep getting crashes with the following error in Xcode 15 beta 7: CoreData: debug: PostSaveMaintenance: fileSize 15009192 greater than prune threshold CoreData: annotation: PostSaveMaintenance: wal_checkpoint(TRUNCATE) Is 15M bytes too much data?

For a watch app with a companion iOS app, if the user purchases a subscription in the iOS app, does the subscriptionStatusTask view modifier in the watch app get the subscription info? Is the user considered subscribed in the watch app?

How to save some data in SwiftData to CloudKit, and others on local device only?