Crazy memory consumption

[heremaps]

Crazy memory consumption

[VivekVithlani]

I have also this issue in here map ios SDK.

Please check my this screenshot (this is device memory usage, not a simulator),

[VivekVithlani]

Finally, I found the solution for Crazy memory consumption

I am using 3 maps (HereMap) screen in my application and this solution works for me and Release memory around 100MB.

You need to init your map in viewDidAppear and remove your map in viewDidDisappear.

I am using 3 maps in my application and init view in

https://stackoverflow.com/questions/47043275/memory-pressure-with-here-maps-ios

-(void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];
    dispatch_async(dispatch_get_main_queue(), ^{
        if (self->mapView == nil) {
            self->mapView = [[NMAMapView alloc] initWithFrame:self.view.frame];
            [self.view addSubview:self->mapView];
            [self.view sendSubviewToBack:self->mapView];
        }
        [self mapSetup];
    });
}


- (void)viewDidDisappear:(BOOL)animated {
    [super viewDidDisappear:animated];
    [self removeMemoryForMapView];
}


-(void)removeMemoryForMapView {

    mapView.positionIndicator.visible = false;
    mapView.landmarksVisible = false;
    mapView.delegate = nil;
    mapView.gestureDelegate = nil;
    mapView.safetySpotsVisible = false;
    [mapView setVisibility:false forPoiCategory:NMAMapPoiCategoryAll];
    [mapView removeFromSuperview];
    mapView = nil;
}

[AmbroseLi]

Each instance of the map will incur more memory usage. However, sharing a map instance across multiple views is possible and something you should consider if the map configuration isn't too different across the various views. If they differ a lot (or if you are displaying traffic which should really only be displayed on one map view at a time to have a reliable display), then making the multiple map instances is the way to go. It's a matter of balance between convenience and memory usage.

On an aside, please post questions at our Stack Overflow forum where the HERE SDK user community and our SDK developers can help you.

[sairasamdanii]

@AmbroseLi Hi Ambrose, I have already posted this on Stack Overflow. But I was not able to post it on this page or under this tag. I could only find a tag named here-api on Stack Overflow. Can you help me adding this question to your page.

Below is the link of my post on Stack Overflow.
[https://stackoverflow.com/questions/47043275/memory-pressure-with-here-maps-ios]

Nature of my app is like this that having one single instance of map might not be possible. App has a tabbar and 3 of my tabs show map simultaneously.

Another bigger issues is that each time frame of map is changed, it reloads and memory keeps on increasing like any thing. Even moving the map and zoom in/ zoom out will also increase memory exponentially.

50 MB of memory on one load. Isn't it crazy.

Any help will be highly appreciated.