Question

我正在尝试从URL加载标记图标，但它没有向我显示地图上的图标。我做错了什么。当我使用Bitmap加载图标时，它正在工作。
毕加索图像加载对我不起作用。

我在日志中得到了项目名称：

＆GT;         ....
          D /成功：@ +为Duke Of Wellington设置位图PT尺寸：＃3
          D /成功：@ +为Dante Gabriel Rossetti设置位图PT尺寸：＃2
          D /成功：@ +设置Pierre Teilhard de Chardin的位图PT大小：＃1

这是我的完整代码：

private class CreateProductListTask extends AsyncTask<Void, Void, List<Product>> {

    private String serverUrl;

    public CreateProductListTask(String url) {
        super();
        this.serverUrl = url;
    }

    @Override
    protected List<Product> doInBackground(Void... params) {
             .....

            JSONObject response = new JSONObject(stringBuffer.toString());

            List<Product> products = new ArrayList<>();
            HashMap<String, Bitmap> iconsMap = new HashMap<>();
            try {
                JSONArray productsJSON = response.getJSONArray("all_products");
                for (int ixProduct = 0; ixProduct < productsJSON.length(); ixProduct++) {
                    JSONObject productJSON = productsJSON.getJSONObject(ixProduct);
                    String mapIconStr = productJSON.getString("map_icon");
                    URI uri = new URI(mapIconStr);
                    String[] segments = uri.getPath().split("/");
                    String iconName = segments[segments.length - 1];

                    // percetn-encode URL
                    String mapIconPath = mapIconStr.substring(0, mapIconStr.indexOf(iconName));
                    String iconUrlString = mapIconPath + URLEncoder.encode(iconName, "UTF-8");

                    // replace "http:" with "https:"
                    iconUrlString = iconUrlString.replace("http:", "https:");

                        try {
                            Product product = new Product();
                            product.id = productJSON.getString("ID");
                            product.name = productJSON.getString("post_title");
                            product.lat = productJSON.getDouble("latitude");
                            product.lon = productJSON.getDouble("longitude");
                            id = product.id;
                            System.out.println("my Id stored" + id);

                            product.icons= iconUrlString;
                            products.add(product);

                        } catch (Exception ignore) {
                        }

                }

            } catch (JSONException ex) {
                Log.e("App", "Failure", ex);
            }

            return products;
        } catch (Exception ex) {
            Log.e("App", "yourDataTask", ex);
            return null;
        } finally {
            if (bufferedReader != null) {
                try {
                    bufferedReader.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    @Override
    protected void onPostExecute(List<Product> products) {
        if (products != null) {
            PoiTarget pt;
            for (final Product product : products) {

                Marker marker = googlemap.addMarker(new MarkerOptions()
                        .position(new LatLng(product.lat, product.lon))
                        .title(product.name)
                       /* .icon(BitmapDescriptorFactory.fromBitmap(product.icon))*/);

                pt = new PoiTarget(marker);
                poiTargets.add(pt);
                Picasso.with(Frnt_mapActivity.this)
                        .load(product.icons)
                        .into(pt);
                markerIds.put(marker, product.id);


            }
        }
    }

}
//--------------------------------------------------------
// Inner class
//--------------------------------------------------------
class PoiTarget implements Target {
    private Marker m;

    public PoiTarget(Marker m) { this.m = m; }

    @Override public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
        m.setIcon(BitmapDescriptorFactory.fromBitmap(bitmap));
        poiTargets.remove(this);
       Log.d("success"," @+ Set bitmap for "+m.getTitle()+" PT size: #"+poiTargets.size());
    }

    @Override public void onBitmapFailed(Drawable errorDrawable) {
       Log.e("Load Image Failed"," @+ [ERROR] Don't set bitmap for "+m.getTitle());
        poiTargets.remove(this);
    }

    @Override public void onPrepareLoad(Drawable placeHolderDrawable) {

    }
}

Answer 1

为此目的使用Glide，它比毕加索更快地加载位图。有时毕加索在加载时会抛出错误，但在Glide中这种情况不会发生。

也不要忘记在加载图像后关闭并重新打开标记。请参阅下面的代码。

 if (marker.isInfoWindowShown()) {
    marker.hideInfoWindow();
    marker.showInfoWindow();
}

如果您仍然感到困惑，请告诉我。我将发布我的完整代码。

Answer 2

替换此代码

@Override public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
        m.setIcon(BitmapDescriptorFactory.fromBitmap(bitmap));
        poiTargets.remove(this);
       Log.d("success"," @+ Set bitmap for "+m.getTitle()+" PT size: #"+poiTargets.size());
    }

与

@Override public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
        poiTargets.remove(this);
        m.setIcon(BitmapDescriptorFactory.fromBitmap(bitmap));

       Log.d("success"," @+ Set bitmap for "+m.getTitle()+" PT size: #"+poiTargets.size());
    }

地图标记图标未使用毕加索加载

2 个答案: