Question

我在地图中添加了多个叠加层。当我尝试放大/缩小时，我遇到了这个问题：

线程＃6：tid = 0x6fdb，0x000000010b5757a5 MapKit`MKPolylineCreatePathWithPoints + 44，queue ='com.apple.root.default-qos'，stop reason = EXC_BAD_ACCESS（code = 1，address = 0x0）
- frame＃0：0x000000010b5757a5 MapKit MKPolylineCreatePathWithPoints + 44 frame #1: 0x000000010b56e839 MapKit - [MKPolylineRenderer drawMapRect：zoomScale：inContext：] + 147 帧＃2：0x000000010b56a5a2 MapKit __47-[MKOverlayRenderer overlay:drawKey:inContext:]_block_invoke + 670 frame #3: 0x000000010b56a661 MapKit _ worldsForBounds28687 + 58 帧＃4：0x000000010b56a2e9 MapKit -[MKOverlayRenderer overlay:drawKey:inContext:] + 307 frame #5: 0x0000000116542bf9 VectorKit __ 40- [VKRasterOverlayTileSource _queueDraw：] _ block_invoke + 441 帧＃6：0x000000010e463e5d libdispatch.dylib _dispatch_call_block_and_release + 12 frame #7: 0x000000010e48449b libdispatch.dylib _ dispatch_client_callout + 8 帧＃8：0x000000010e46cbef libdispatch.dylib _dispatch_root_queue_drain + 1829 frame #9: 0x000000010e46c4c5 libdispatch.dylib _ dispatch_worker_thread3 + 111 第10帧：0x000000010e7bc68f libsystem_pthread.dylib _pthread_wqthread + 1129 frame #11: 0x000000010e7ba365 libsystem_pthread.dylib start_wqthread + 13

可能是什么问题？我的代码如下。

代码：

 public func mapView(mapView: MKMapView, rendererForOverlay overlay: MKOverlay) -> MKOverlayRenderer {

    var overlaysArch : Dictionary<MKPolygon, MKCircleRenderer> = Dictionary<MKPolygon, MKCircleRenderer>();
    let az = arrayAz?.first
    let azSize = arrayAz?.count

    _ = names?.first

    _ = 0

    if (azSize != 0 && names?.count != 0) {

        if (overlay.isKindOfClass(MKPolygon)) {

            let path = mapDrawPolygon.drawArch(az!);

            let polygon = MKCircleRenderer(overlay: overlay)
            polygon.path = path
            polygon.overlay.title

            let over : CustomOverlay = overlay as! CustomOverlay;

            overlaysArch[over] = polygon;

            return polygon
        }
    }
    return MKPolylineRenderer()
}

MapKit iOS Swift缩放问题

0 个答案: