Android-EBADF(错误的文件号)OnClickInfoMarker

Question

我搜索了相关问题，但找不到。我创建了一个InfoWindowMarker，其中显示图片、名称和地址。然后我创建了OnInfoWindowClickListener，它将显示所选标记的纬度和经度。但当我点击信息窗口时，我收到了这个错误消息。

Logcat:

com.xxxxxxxx.xxxxxxxxxx E/Zygote﹕Zygote：关闭描述符时出错libcore.io.ErrnoException：关闭失败：EBADF（错误的文件号）位于libcore.io.Posix.close（本机方法）位于libcore.io.BlockGuardOs.close（BlockGuardOs.java:75）网址：com.android.internal.os.ZygoteInit.closeServerSocket（ZygoteNit.java:221）网址：com.android.internal.os.ZygoteConnection.handleChildProc（ZygoteConnection.java:879）网址：com.android.internal.os.ZygoteConnection.runOnce（ZygoteConnection.java:242）网址：com.android.internal.os.ZygoteInit.runSelectLoop（ZygoteNit.java:713）网址：com.android.internal.os.ZygoteInit.main（ZygoteNit.java:649）在dalvik.system.NativeStart.main（本地方法）

InfoWindowAdapter:

public GoogleMap.InfoWindowAdapter CustomMarkerInfo = new GoogleMap.InfoWindowAdapter() {
    @Override
    public View getInfoWindow(Marker marker) {
        ViewGroup viewGroup = (ViewGroup)getLayoutInflater().inflate(R.layout.custom_info_window, null);
        ImageView ivRow = (ImageView)viewGroup.findViewById(R.id.ivRowImage);
        TextView locationName = (TextView)viewGroup.findViewById(R.id.tvRowTitle);
        TextView locationAddress = (TextView)viewGroup.findViewById(R.id.tvRowTitle2);
        Bitmap locationImage;
        locationName.setText(marker.getTitle());
        locationAddress.setText(marker.getSnippet());
        URL imageURL;
        try {
            imageURL = new URL(markerInfo.get(marker.getId()));
            locationImage = BitmapFactory.decodeStream(imageURL.openConnection().getInputStream());
            ivRow.setImageBitmap(locationImage);
        }catch (Exception e){
            e.printStackTrace();
        }
        return viewGroup;
    }
    @Override
    public View getInfoContents(Marker marker) {return null;}
};

OnInfoWindowClickListener:

 private GoogleMap.OnInfoWindowClickListener onInfoWindowClickListener = new GoogleMap.OnInfoWindowClickListener() {
    @Override
    public void onInfoWindowClick(Marker marker) {
        LatLng myLatLng = myLatLng();
        Toast.makeText(getApplicationContext(),myLatLng.toString(),Toast.LENGTH_LONG).show();
    }
};
private final LocationListener locationListener = new LocationListener() {
    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {}
    @Override
    public void onProviderEnabled(String provider) {}
    @Override
    public void onProviderDisabled(String provider) {}
    @Override
    public void onLocationChanged(Location newLocation) {
    }
};
private LatLng myLatLng(){
    LocationManager locationManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
    String provider;
    Location location;
    LatLng myLatLng = null;
    if(locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)){
        provider = LocationManager.GPS_PROVIDER;
        Toast.makeText(getApplicationContext(),"GPS tidak aktif.",Toast.LENGTH_LONG).show();
    }else if(locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER)){
        provider = LocationManager.NETWORK_PROVIDER;
    }else{
        provider = LocationManager.PASSIVE_PROVIDER;
    }

    if(locationManager.getLastKnownLocation(provider) == null){
        locationManager.requestLocationUpdates(provider,2000,10,locationListener);
        location = locationManager.getLastKnownLocation(provider);
        if(location == null){
            Toast.makeText(getApplicationContext(),"Tidak dapat menemukan lokasi saat ini, coba lagi.",Toast.LENGTH_LONG).show();
        }else{
            location = locationManager.getLastKnownLocation(provider);
            myLatLng = new LatLng(location.getLatitude(),location.getLongitude());
        }
    }else{
        location = locationManager.getLastKnownLocation(provider);
        myLatLng = new LatLng(location.getLatitude(),location.getLongitude());
    }
    return myLatLng == null ? myLatLng() : myLatLng;
}

感谢提供任何解决方案。

更新：从加载的JSON创建标记。如果是，可能会导致此问题。

Answer 1

这可能是线程问题。在从URL加载图像之前，会返回viewGroup。解决该问题的一个简单方法是使用第三方图像加载库Picasso。

样本代码：

 ImageView imageView = (ImageView)myContentsView.findViewById(R.id.ivRowImage);
 if (not_first_time_showing_info_window) {
     Picasso.with(getApplicationContext()).load("YOUR_IMG_URL").into(imageView);
 } else { // if it's the first time, load the image with the callback set
     not_first_time_showing_info_window=true;
     Picasso.with(getApplicationContext()).load("YOUR_IMG_URL").into(imageView,new InfoWindowRefresher(marker));
 }

然后你可以有一个私人助手方法来确保异步显示在第一次点击：

 private class InfoWindowRefresher implements Callback {
        private Marker markerToRefresh;
        private InfoWindowRefresher(Marker markerToRefresh) {
            this.markerToRefresh = markerToRefresh;
        }
        @Override
        public void onSuccess() {
            markerToRefresh.showInfoWindow();
        }
        @Override
        public void onError() {}
    }

您可以参考这个GitHub页面来获得完整的实现：https://github.com/jbj88817/GoogleMap-InfoWindow-android/blob/master/app/src/main/java/com/bjiang/map_ex/MainActivity.java

如果你真的想用ImageLoader做这件事，你可以看看这篇文章：http://androidfreakers.blogspot.com/2013/08/display-custom-info-window-with.html（但与使用Picasso从URL加载相比，它更复杂）