加载场景内存不足（display scene receive memory issue）

Question

I am developing a 3D APP with ArcGIS Runtime SDK for iOS 100.5. I have tried the following 2 ways, but I always receive a "terminated due to memory issue" error.

1. Display my scene through scene server.

2. Display my scene through mobile scene package(.mspk).

Is there an effective way to display a scene in iOS APP?

DanWang2 · Answer

Thank you for your reply! I have done according to the official Demo in Github. Here is my code:

//mspk

- (void)addMspk:(FSDMspk *)mspk {

NSString *path = [FSDUtility docPathForFile:mspk.fileName];

NSURL *url = [NSURL fileURLWithPath:path];

[AGSMobileScenePackage checkDirectReadSupportForMobileScenePackageAtFileURL:url

completion:^(BOOL isDirectReadSupported, NSError * _Nullable error)

{

if (error) {

DLog(@验证mspk失败, error = %@", error.localizedDescription);

} else if (isDirectReadSupported) {

[self addMspkSceneWithFileUrl:url];

} else {

NSString *unpackPath = [FSDUtility cachePathForFile:mspk.fileName];

NSURL *unpackUrl = [NSURL fileURLWithPath:unpackPath];

if ([FSD_FILE_MANAGER fileExistsAtPath:unpackPath]) {

[FSD_FILE_MANAGER removeItemAtPath:unpackPath error:nil];

}

[AGSMobileScenePackage unpackMobileScenePackageAtFileURL:url

outputDirectory:unpackUrl

completion:^(NSError * _Nullable error)

{

if (error) {

DLog(@解包mspk失败！);

} else {

[self addMspkSceneWithFileUrl:unpackUrl];

}

}];

}

}];

}

- (void)addMspkSceneWithFileUrl:(NSURL *)url {

AGSMobileScenePackage *mspkLayer = [AGSMobileScenePackage mobileScenePackageWithFileURL:url];

[mspkLayer loadWithCompletion:^(NSError * _Nullable error) {

if (error) {

DLog(@加载mspk失败, error = %@", error.localizedDescription);

} else {

self.sceneView.scene = mspkLayer.scenes.firstObject;

[self configMspkLayerInfo];

dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{

[self configInitialCamera];

});

}

}];

}

//SceneServer

- (void)addOnlineLayer:(FSDLayer *)layer {

if (FSD_STRING_EMPTY(layer.tileUrl)) return;

NSString *urlStr = [NSString stringWithFormat:@%@/layers/0", layer.tileUrl];

DLog(@SceneServer url = %@", urlStr);

AGSArcGISSceneLayer *sceneLayer = [AGSArcGISSceneLayer ArcGISSceneLayerWithURL:[NSURL URLWithString:urlStr]];

sceneLayer.name = layer.name;

sceneLayer.layerID = [NSString stringWithFormat:@%@_%@", layer.name, kLayerSuffixTile];

sceneLayer.visible = layer.visible;

[self.sceneView.scene.operationalLayers addObject:sceneLayer];

AGSCamera *camera = [AGSCamera cameraWithLatitude:30.275955 longitude:120.0 altitude:500 heading:0 pitch:60 roll:0];

[self.sceneView setViewpointCamera:camera];

[sceneLayer loadWithCompletion:^(NSError * _Nullable error) {

if (error) {

DLog(@%@加载失败, error = %@", layer.name, error.localizedDescription);

} else {

DLog(@%@加载成功", layer.name);

dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{

if (!self.initialCamera) {

[self configInitialCamera];

}

});

}

}];

}

NimeshJarecha · Answer

Hi Dan,

There are lot of samples available for 3D (Scene). Did you try them? Are you able to make them work on your device?

Samples Available on GitHub:

arcgis-runtime-samples-ios/arcgis-ios-sdk-samples/Scenes at master · Esri/arcgis-runtime-samples-ios · GitHub

To investigate the issue you are seeing, can you post your code and stack trace here so we can look into it?

Regards,

Nimesh