Question

当我尝试将MapRoute对象添加到地图时，我似乎在某些旧设备上出现内存不足错误。通常发生在大约城市规模以外的路线上，特别是在美国各地的非常长的路线上。我尝试过仿真器设备（Nexus 4.4.4）和物理设备（Samsung Galaxy Prevail 4.4.4）。这是我计算路线的代码：

        PlaceServices placeServices = new PlaceServices(getActivity());
                placeServices.calculateRoute(pickupMarker.getCoordinate(), dropoffMarker.getCoordinate(),
                        new PlaceServices.RouteListener() {
                            @Override
                            public void gotRoute(MapRoute mapRoute) {
                                if(mapRoute != null) {

                                    map.addMapObject(mapRoute);
                                    GeoBoundingBox gbb = mapRoute.getRoute().getBoundingBox();
// Here is where I get an OOM
                                    map.zoomTo(gbb, Map.Animation.NONE, Map.MOVE_PRESERVE_ORIENTATION);
                                }
                            }
                        });

这是我片段中回调的结果：

Error in converting images
    java.lang.OutOfMemoryError
        at android.graphics.BitmapFactory.nativeDecodeStream(Native Method)
        at android.graphics.BitmapFactory.decodeStreamInternal(BitmapFactory.java:620)
        at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:596)
        at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:634)
        at com.here.android.mpa.internal.x.a(DiskCache.java:447)
        at com.here.android.mpa.internal.x$b.a(DiskCache.java:399)
        at com.here.android.mpa.internal.x$b.doInBackground(DiskCache.java:381)
        at android.os.AsyncTask$2.call(AsyncTask.java:288)
        at java.util.concurrent.FutureTask.run(FutureTask.java:237)
        at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
        at java.lang.Thread.run(Thread.java:841)

有人遇到过这个问题吗？它没有影响更新的设备，我已经在Nexus 6上测试过没有问题。

堆栈跟踪：

const http = require('http');
const express = require('express');
const socketIO = require('socket.io');

var app = express();
var server = http.createServer(app);
var io = socketIO(server);

app.use(express.static(__dirname + '/public'));
const port = process.env.PORT || 3000;

// add your socketio code here

server.listen(port, () => {
    console.log(`Server is up on port ${port}!`);
});

更新：由于问题是零星的，我花了一分钟来缩小范围，但错误发生在zoomTo，而不是向地图添加对象。我已经更新了标题和评论。

Answer 1

在我计算修复问题的路线之前，我最终调用了zoomTo（）方法，猜测尝试添加路径对象并同时缩放是不好的：

// Zoom to markers before the route is calculated to avoid OOM on some devices.
        if(pickupCoordinate != null && dropoffCoordinate != null) {
            GeoBoundingBox geoBoundingBox;
            geoBoundingBox = Util.calculateBoundingBox(pickupCoordinate, dropoffCoordinate);
            map.zoomTo(geoBoundingBox, Map.Animation.LINEAR, Map.MOVE_PRESERVE_ORIENTATION);
        }

        PlaceServices placeServices = new PlaceServices(getActivity());
        placeServices.calculateRoute(pickupMarker.getCoordinate(), dropoffMarker.getCoordinate(),
                new PlaceServices.RouteListener() {
                    @Override
                    public void gotRoute(MapRoute mapRoute) {
                        if(mapRoute != null) {
                            map.addMapObject(mapRoute);    
                        }
                    }
                });

这里映射api Android：MapRoute zoomTo上的内存不足错误（）

1 个答案: