Android: 如果我知道图片的名称，如何在 public Facebook 页面上获取图片 link

Question

如果我在 public 自动生成的 Facebook 页面上知道图片的名称 (safe_image.php.jpg)，我如何才能直接 link 访问该图片？ enter link description here 当然是使用代码

谢谢:)

编辑 1：

我在这个Graph API Reference /{user-id}/picture的帮助下实现了它但是在jason中返回的图片url总是50x50 px，这是我的请求代码：如何将返回的大小更改为更大？

        params.putString("height", "200");
        params.putString("type", "normal");
        params.putString("width", "200");
        params.putString("fields", "picture");
        new Request(session, "103139833059656", params, HttpMethod.GET, new Request.Callback()

Answer 1

是 - 假设您有页面 ID 是可能的。考虑这个 Facebook 页面： https://www.facebook.com/BCBlood

您有 ID - 是：

148255255232181

现在您需要做的就是调用以下行并解析响应。调用此 http get:

http://graph.facebook.com/148255255232181/picture?redirect=false&width=300&height=300

响应将是：

{
   "data": {
      "height": 243,
      "is_silhouette": false,
      "url": "https://fbcdn-profile-a.akamaihd.net/hprofile-ak-prn2/v/t1.0-1/10311943_731106673613700_2433559617326858334_n.jpg?oh=6f0532b666e476539b5f41b803896495&oe=5523F5C7&__gda__=1428226241_013b5598c756728eaf04d630f96256a8",
      "width": 243
   }
}

如您所见，响应包含个人资料图片 link。

编辑，更多详情：

Bundle params = new Bundle();
    params.putString("height", "200");
    params.putString("type", "normal");
    params.putString("width", "200");
    params.putString("redirect", "false");


Request.Callback callback = new Request.Callback() {

    @Override
    public void onCompleted(Response response) {
        dialog.dismiss();
        FacebookRequestError error = response.getError();
        if(error != null) {
            Log.d("FB", "Facebook error - " + error.getErrorMessage());
            Log.d("FB", "Error code - " + error.getErrorCode());
            Log.d("FB", "JSON Response - " + error.getRequestResult());
            Log.d("FB", "Error Category - " + error.getCategory());

        } else {
            GraphObject graphObject = response.getGraphObject();
                        JSONObject dataObject = 
                        new JSONObject((String)graphObject.getProperty("data"));

                        String pictureURL = 
                            dataObject.getString("url");
        // do something with pictureURL
        // ......

        }
    }
};

Request request= new Request(session, "103139833059656/picture", params, HttpMethod.GET, new Request.Callback()


RequestAsyncTask asyncTask = new RequestAsyncTask(request);
asyncTask.execute();

Android: 如果我知道图片的名称，如何在 public Facebook 页面上获取图片 link

Android: How can I get an image link on public Facebook page if I have its name

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