Question

我不明白为什么我没有在我的标记上获得更新图像？

String atvar_url =“uscalumni.gameday-data.com/upload/22081449748313.jpg”;

            MarkerOptions options = new MarkerOptions();
            options.title("");
            options.position(latLng);
            options.icon(BitmapDescriptorFactory.fromBitmap(createDrawableFromView(atvar_url, true)));
            options.anchor(0.5f, 1);
            Marker m = googleMap.addMarker(options);
            markerPicMap.put(atvar_url,m);

私有Bitmap createDrawableFromView（final String atvar_url，boolean isCallback） {

    DisplayMetrics displayMetrics = new DisplayMetrics();
    getActivity().getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);

    View marker = ((LayoutInflater) getActivity().getSystemService(Activity.LAYOUT_INFLATER_SERVICE)).inflate(R.layout.custom_marker_layout, null);
    final ImageView img = (ImageView) marker.findViewById(R.id.img_profile);


    Callback callback = null;
    if (isCallback) {
        callback = new Callback() {
            @Override
            public void onSuccess()
            {
                try {
                    if (markerPicMap != null && markerPicMap.containsKey(atvar_url)) {
                        Marker m = markerPicMap.get(atvar_url);
                        if (m != null) {
                            Bitmap bmp = createDrawableFromView(atvar_url, false);
                            Log.e("Sundeep", "Success" +  bmp);
                            m.setIcon(BitmapDescriptorFactory.fromBitmap(createDrawableFromView(atvar_url, false)));
                        }
                    }
                }catch (Exception e) {e.printStackTrace();}
            }

            @Override
            public void onError() {
                Log.e("Sundeep", "there is error");
            }
        };
    }
    Picasso.with(getActivity()).load(atvar_url).placeholder(R.drawable.default_user).into(img, callback);
    marker.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT));
    marker.measure(displayMetrics.widthPixels, displayMetrics.heightPixels);
    marker.layout(0, 0, displayMetrics.widthPixels, displayMetrics.heightPixels);
    marker.buildDrawingCache();
    Bitmap bitmap = Bitmap.createBitmap(marker.getMeasuredWidth(), marker.getMeasuredHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    marker.draw(canvas);
    return bitmap;
}

请帮帮我。谢谢。

Answer 1

您的代码是正确的，但我注意到用于加载图片的图片网址不正确，请在浏览器中打开该图片网址，它说网页不可用，所以舞会不在您的代码中，我认为问题出在Image url中，只需检查或更改它以进行测试。

Answer 2

我没有看到任何通过http获取图像的代码。您需要添加用于建立http连接的代码，然后通过Internet使用InputStream检索图像。可能你错过了这件作品。

URL url = new URL(user_image_url);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();   
conn.setDoInput(true);   
conn.connect();     
InputStream is = conn.getInputStream();
bmImg = BitmapFactory.decodeStream(is);

如需进一步参考，请查看此SO答案。

How to create a custom-shaped bitmap marker with Android map API v2

Google Marker未更新图片

2 个答案: