Android Google Maps API V2 OutOfMemory 异常

Question

我有数据的列表视图，每个项目都会打开一个视图，其中嵌入了一个地图。此地图的目的是显示单个标记。代码运行良好，但如果我有很多列表项（50 多个），来回循环会导致应用程序抛出 OutOfMemory 异常。

谁能帮我理解我在这里做错了什么。我猜我的地图初始化逻辑中有问题导致了这个问题。我正在努力解决这个问题。

public class DetailView extends Fragment implements OnInfoWindowClickListener {

    private MapView mMapView;
    private GoogleMap googleMap;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
            Bundle savedInstanceState) {

            mMapView = (MapView) v.findViewById(R.id.mapBusinessLocation);
            mMapView.onCreate(savedInstanceState);
            mMapView.onResume();//needed to get the map to display immediately

            MapsInitializer.initialize(this.getActivity() );
            //MapController myMapController = mMapView.getController();
            googleMap = mMapView.getMap();
            googleMap.setMyLocationEnabled(true);
            CameraUpdate center=
                    CameraUpdateFactory.newLatLng(new LatLng(-20.269927,57.672729)); 
             CameraUpdate zoom=CameraUpdateFactory.zoomTo(15);

            googleMap.moveCamera(center);
            googleMap.animateCamera(zoom); 
    }

       @Override
        public void onActivityCreated(Bundle savedInstanceState) {
            super.onActivityCreated(savedInstanceState);

        placeMarker("test");

        }

        private Marker placeMarker(String title) {
            //Get the hue
            String pinColor = "#f29217";    
            int c = Color.parseColor(pinColor);
            float[] pixelHSV = new float[3];
            Color.colorToHSV(c, pixelHSV);
            return googleMap.addMarker(new MarkerOptions()
             .position(new LatLng(-20.269927,57.672729 ))
             .title(title)
             .snippet("")
             .icon(BitmapDescriptorFactory.defaultMarker(pixelHSV[0])));
        }
           @Override
        public void onResume() {
            super.onResume();

                if(mMapView != null) {
                mMapView.onResume();
                }
        }

        @Override
        public void onPause() {
            super.onPause();

                if(mMapView != null) {
                mMapView.onPause();
                }
        }

        @Override
        public void onDestroy() {
            super.onDestroy();

                if(mMapView != null) {
                mMapView.onDestroy();
                }

        }

        @Override
        public void onLowMemory() {
            super.onLowMemory();

                if(mMapView != null) {
                mMapView.onLowMemory();
                }
        }

}

应用崩溃时的堆栈跟踪如下..

    PP_VERSION_CODE=53
    ANDROID_VERSION=4.3
    PHONE_MODEL=GT-I9505
    CUSTOM_DATA=
    STACK_TRACE=java.lang.OutOfMemoryError
    at android.graphics.Bitmap.nativeCreate(Native Method)
    at android.graphics.Bitmap.createBitmap(Bitmap.java:726)
    at android.graphics.Bitmap.createBitmap(Bitmap.java:703)
    at android.graphics.Bitmap.createBitmap(Bitmap.java:670)
    at maps.al.k.a(Unknown Source)
    at maps.as.b.a(Unknown Source)
    at maps.as.b.a(Unknown Source)
    at maps.as.b.b(Unknown Source)
    at maps.au.al.a(Unknown Source)
    at maps.au.at.a(Unknown Source)
    at maps.ay.ap.a(Unknown Source)
    at maps.ap.f.a(Unknown Source)
    at maps.ap.f.b(Unknown Source)
    at maps.aj.y.l(Unknown Source)
    at maps.aj.y.run(Unknown Source)

    LOGCAT=03-03 16:26:47.204 E/dalvikvm-heap(15112): Out of memory on a 4194320-byte allocation.
    03-03 16:26:47.204 I/dalvikvm(15112): "GLThread 911" prio=5 tid=29 RUNNABLE
    03-03 16:26:47.204 I/dalvikvm(15112):   | group="main" sCount=0 dsCount=0 obj=0x478125e0 self=0x79d89680
    03-03 16:26:47.204 I/dalvikvm(15112):   | sysTid=15717 nice=1 sched=0/0 cgrp=apps handle=1982454736
    03-03 16:26:47.204 I/dalvikvm(15112):   | state=R schedstat=( 0 0 0 ) utm=47 stm=8 core=1
    03-03 16:26:47.204 I/dalvikvm(15112):   at android.graphics.Bitmap.nativeCreate(Native Method)
    03-03 16:26:47.204 I/dalvikvm(15112):   at android.graphics.Bitmap.createBitmap(Bitmap.java:726)
    03-03 16:26:47.204 I/dalvikvm(15112):   at android.graphics.Bitmap.createBitmap(Bitmap.java:703)
    03-03 16:26:47.204 I/dalvikvm(15112):   at android.graphics.Bitmap.createBitmap(Bitmap.java:670)
    03-03 16:26:47.204 I/dalvikvm(15112):   at maps.al.k.a((null):-1)
    03-03 16:26:47.204 I/dalvikvm(15112):   at maps.as.b.a((null):-1)
    03-03 16:26:47.204 I/dalvikvm(15112):   at maps.as.b.a((null):-1)
    03-03 16:26:47.204 I/dalvikvm(15112):   at maps.as.b.b((null):-1)
    03-03 16:26:47.204 I/dalvikvm(15112):   at maps.au.al.a((null):-1)
    03-03 16:26:47.204 I/dalvikvm(15112):   at maps.au.at.a((null):-1)
    03-03 16:26:47.204 I/dalvikvm(15112):   at maps.ay.ap.a((null):-1)
    03-03 16:26:47.204 I/dalvikvm(15112):   at maps.ap.f.a((null):-1)
    03-03 16:26:47.204 I/dalvikvm(15112):   at maps.ap.f.b((null):-1)
    03-03 16:26:47.204 I/dalvikvm(15112):   at maps.aj.y.l((null):-1)

03-03 16:26:47.204 I/dalvikvm(15112):   at maps.aj.y.run((null):-1)

Answer 1

您正在使用哪个 Android 版本？因为在早期（2.3-）Android 版本中，垃圾收集器不会自动清理位图。另请查看此答案：Bitmap, Bitmap.recycle(), WeakReferences, and Garbage Collection