Latest Contributions by ShengchuanZhou

‎12-04-2017

Hi Suganya, Thanks for your reply! It solved my problem perfectly! Best, Shengchuan

‎12-03-2017

Dear All, I am working on a ios app recently and I checked the arcgis-ios-sdk-samples for some help. In the Feature layer selection demo, I got a question about feature layer attributes. When the query results returned, the following print output print("\(result.featureEnumerator().allObjects.count) feature(s) selected") print(result.featureEnumerator().nextObject()?.attributes) shows only 2 attributes fields (objectid, typedamage) and values, but in the feature definition, the feature contains 4 attribute fields (objectid, typedamage, numoccup, descdamage). Since i do not find outfields property or other ways to get other attributes. Are there any way to get the entire attributes list? Many thanks!

‎11-30-2017

Problem solved! Thank you!

‎11-30-2017

Hi guys, I am working on a map App using runtime 100.1 for iOS recently, and I am looking for a way to disable map rotation for two finger twist gesture. Because the map views always be rotated a little bit when i use pinch-in and pinch-out gestures for map zooming, and it's really disturbing. As the api guide indicated, If you want to allow the two finger twist gesture to rotate the map the enable the allowInteractiveRotation property on AGSMapView. So it seems there is a property can do it, but i can not find that property in AGSMapView class. Are there any suggestions? I really appreciate your help. Thanks!

‎10-10-2017

Hello Ryan, I tested another program which is more complicated, and the crash issue occurs in the same line. The stack information is here: (lldb) bt * thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=2, address=0x197f5b2a8) frame #0: 0x00000001845e5ba0 libsystem_platform.dylib`_platform_memmove + 208 frame #1: 0x0000000197f5b2ec SceneKit`SCNGetPerformanceStatistics + 68 frame #2: 0x000000010242e064 libglInterpose.dylib`__clang_call_terminate + 24572 frame #3: 0x000000010242ade8 libglInterpose.dylib`__clang_call_terminate + 11648 frame #4: 0x000000010260f3ec libglInterpose.dylib`__clang_call_terminate + 1995652 frame #5: 0x000000010260cf08 libglInterpose.dylib`__clang_call_terminate + 1986208 frame #6: 0x0000000100960c50 QingDaoOverviewSystem`-[AGSMapRenderer drawRequested] + 592 frame #7: 0x0000000100960644 QingDaoOverviewSystem`-[AGSMapRenderer pulse:] + 308 frame #8: 0x00000001036c83f8 GPUToolsCore`__clang_call_terminate + 35748 frame #9: 0x000000018888efd4 QuartzCore`CA::Display::DisplayLink::dispatch_items(unsigned long long, unsigned long long, unsigned long long) + 672 frame #10: 0x0000000184c2e30c IOKit`IODispatchCalloutFromCFMessage + 392 frame #11: 0x0000000184952080 CoreFoundation`__CFMachPortPerform + 188 frame #12: 0x000000018496c9dc CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 56 frame #13: 0x000000018496c0e0 CoreFoundation`__CFRunLoopDoSource1 + 440 frame #14: 0x0000000184969bb4 CoreFoundation`__CFRunLoopRun + 2196 frame #15: 0x000000018488a2d8 CoreFoundation`CFRunLoopRunSpecific + 436 frame #16: 0x000000018671bf84 GraphicsServices`GSEventRunModal + 100 frame #17: 0x000000018de36880 UIKit`UIApplicationMain + 208 * frame #18: 0x00000001008f6a54 QingDaoOverviewSystem`main at AppDelegate.swift:12 frame #19: 0x00000001843ae56c libdyld.dylib`start + 4 (lldb) It would be great if you can test the APIs. The application runs normally in simulator and release mode on the device. And there's no problem when i use ios10. Thanks.

‎10-10-2017

Hi Ryan, Thanks for your reply. I use xcode 9 and swift 4.0, and here are the stack trace information of my app: (lldb) bt * thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=2, address=0x197f5b2a8) frame #0: 0x00000001845e5ba0 libsystem_platform.dylib`_platform_memmove + 208 frame #1: 0x0000000197f5b2ec SceneKit`SCNGetPerformanceStatistics + 68 frame #2: 0x0000000102522064 libglInterpose.dylib`__clang_call_terminate + 24572 frame #3: 0x000000010251ede8 libglInterpose.dylib`__clang_call_terminate + 11648 frame #4: 0x00000001027033ec libglInterpose.dylib`__clang_call_terminate + 1995652 frame #5: 0x0000000102700f08 libglInterpose.dylib`__clang_call_terminate + 1986208 frame #6: 0x0000000100ba9ab0 TestArcGIS`-[AGSMapRenderer drawRequested] + 592 frame #7: 0x0000000100ba94a4 TestArcGIS`-[AGSMapRenderer pulse:] + 308 frame #8: 0x00000001035b83f8 GPUToolsCore`__clang_call_terminate + 35748 frame #9: 0x000000018888efd4 QuartzCore`CA::Display::DisplayLink::dispatch_items(unsigned long long, unsigned long long, unsigned long long) + 672 frame #10: 0x0000000184c2e30c IOKit`IODispatchCalloutFromCFMessage + 392 frame #11: 0x0000000184952080 CoreFoundation`__CFMachPortPerform + 188 frame #12: 0x000000018496c9dc CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 56 frame #13: 0x000000018496c0e0 CoreFoundation`__CFRunLoopDoSource1 + 440 frame #14: 0x0000000184969bb4 CoreFoundation`__CFRunLoopRun + 2196 frame #15: 0x000000018488a2d8 CoreFoundation`CFRunLoopRunSpecific + 436 frame #16: 0x000000018671bf84 GraphicsServices`GSEventRunModal + 100 frame #17: 0x000000018de36880 UIKit`UIApplicationMain + 208 * frame #18: 0x0000000100ba0cec TestArcGIS`main at AppDelegate.swift:12 frame #19: 0x00000001843ae56c libdyld.dylib`start + 4 (lldb) The tested code is quite simple, the application crashed when i connect an 12-inch iPad pro then build and run the application in debug mode. The code of the viewcontroller are listed as follow: import UIKit import ArcGIS class ViewController: UIViewController { @IBOutlet weak var mapView: AGSMapView! override func viewDidLoad() { super.viewDidLoad() let url = NSURL(string: "http://services.arcgisonline.com/ArcGIS/rest/services/Canvas/World_Light_Gray_Base/MapServer") let tiledLayer = AGSTiledMapServiceLayer(url: url! as URL) self.mapView.addMapLayer(tiledLayer, withName: "Basemap Tiled Layer") } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() // Dispose of any resources that can be recreated. } }

‎10-09-2017

Hi, I updated my device and toolchains to ios11 and xcode 9 recently, and I found a crash issue in device debug mode which means the app can successfully run in simulator and release mode on the device, but will crash when i use debug mode on device. The app will crash after invoke addMapLayer() method of a AGSMapView class, and there's no valuable information in the debug stack except one line : Thread 1: EXC_BAD_ACCESS (code=2, address=0x197f5b2a8) I believe it could be a threading problem in runtime 10.2.5. I tried to make a sample demo that only contains a few lines of code that only load a web map or a local tiled layer in a single-view app, and the crash issue is still there. It would be good if someone can help me check the problem to make sure if it is a bug in runtime 10.2.5, and I also would like to know if ESRI will release a update to the runtime 10.2.5 to fix it. Thanks.

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Date Last Visited	‎11-11-2020 02:24 AM

My Ideas

Latest Contributions by ShengchuanZhou

Re: Attributes results dosen't match fields count in feature layer query

Attributes results dosen't match fields count in feature layer query

Re: How to disable map rotation on runtime 100.1

How to disable map rotation on runtime 100.1

Re: Runtime 10.2.5 apps crashed in ios11 under device debug mode

Re: Runtime 10.2.5 apps crashed in ios11 under device debug mode

Runtime 10.2.5 apps crashed in ios11 under device debug mode

Re: How to disable map rotation on runtime 100.1