在入门Android的FB图形API空响应 [英] Getting null response in android fb graph api

查看:158
本文介绍了在入门Android的FB图形API空响应的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我一直在尝试使用 FB图形API 效应初探我得到的 当我尝试在我的Andr​​oid应用程序抓取网页的帖子。

我试图让页面从一个ID我用一页纸。
我期望得到含饲料的图形响应。
但我得到了一个空响应

 公共类FB扩展活动{按钮fbbt1;
CallbackManager callbackManager;AccessTokenTracker accessTokenTracker;@覆盖
保护无效的onCreate(捆绑savedInstanceState){
    super.onCreate(savedInstanceState);
    的setContentView(R.layout.activity_fb);    尝试{        FacebookSdk.sdkInitialize(getApplicationContext());        fbbt1 =(按钮)findViewById(R.id.fbbutton);
        callbackManager = CallbackManager.Factory.create();        LoginManager.getInstance()。registerCallback(callbackManager,
                新FacebookCallback< LoginResult>(){
                    @覆盖
                    公共无效的onSuccess(LoginResult loginResult){
                        //应用code
                    }                    @覆盖
                    公共无效onCancel(){
                        //应用code
                        // savedInstanceState
                    }                    @覆盖
                    公共无效onerror的(FacebookException除外){
                        //应用code
                        Toast.makeText(fb.this,exception.toString(),Toast.LENGTH_LONG).show();
                    }
                });
        LoginManager.getInstance()logInWithReadPermissions(此,Arrays.asList(public_profile,user_groups))。        accessTokenTracker =新AccessTokenTracker(){
            @覆盖
            保护无效onCurrentAccessTokenChanged(
                    的accessToken oldAccessToken,
                    的accessToken currentAccessToken){            }
        };        fbbt1.setOnClickListener(新View.OnClickListener(){
            @覆盖
            公共无效的onClick(视图v){
                尝试{
                    getUserData(AccessToken.getCurrentAccessToken());
                    Toast.makeText(fb.this,访问令牌。+ AccessToken.getCurrentAccessToken()为gettoken()的toString(),Toast.LENGTH_LONG).show();
                }
                赶上(例外五){
                    Toast.makeText(fb.this,错误是:+ e.toString(),Toast.LENGTH_LONG).show();
                }            }
        });
    }
    赶上(例外五){
        Toast.makeText(fb.this,e.toString(),Toast.LENGTH_LONG).show();
    }
    }
    公共无效getUserData(的accessToken的accessToken){     GraphRequest.newGraphPathRequest(
            的accessToken,/ 415004402015833 /帖,
            新GraphRequest.Callback(){
                @覆盖
                公共无效onCompleted(GraphResponse graphResponse){
                    尝试{
                        Toast.makeText(fb.this对象长度是:+ graphResponse.getJSONObject()长(),Toast.LENGTH_LONG。).show();
                        Toast.makeText(fb.this,要求是:+ graphResponse.getRequest(),Toast.LENGTH_LONG).show();
                        字符串RESP = graphResponse.getRawResponse();
                        Toast.makeText(fb.this的回应是:+ RESP,Toast.LENGTH_LONG).show();
                    }赶上(例外五){
                        Toast.makeText(fb.this,错误是:+ e.toString(),Toast.LENGTH_LONG).show();
                    }
                }
        })executeAsync()。
    }    @覆盖
    保护无效的onActivityResult(INT申请code,INT结果code,意图数据){
    super.onActivityResult(要求code,结果code,数据);
    callbackManager.onActivityResult(要求code,结果code,数据);
    }    @覆盖
    保护无效的onDestroy(){
    super.onDestroy();
    尝试{
    accessTokenTracker.stopTracking();}
    赶上(例外五){
        Toast.makeText(fb.this,错误是:+ e.toString(),Toast.LENGTH_LONG).show();
        }
    }
}


一组解决方案

我曾误用的ID,而不是一个页面。但现在,我把它改成415004402015833(页面的ID)。现在,职位来了。
感谢您的帮助......

I have been trying to use fb graph api but the reponse i am getting is null when i try to fetch the posts of a page in my android application.

I am trying to get the page feeds from a page whose ID i have used. I expect to get a graph response containing the feeds. But i got a null response.

public class fb extends Activity {

Button fbbt1;
CallbackManager callbackManager;

AccessTokenTracker accessTokenTracker;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_fb);

    try {

        FacebookSdk.sdkInitialize(getApplicationContext());

        fbbt1 = (Button) findViewById(R.id.fbbutton);


        callbackManager = CallbackManager.Factory.create();

        LoginManager.getInstance().registerCallback(callbackManager,
                new FacebookCallback<LoginResult>() {
                    @Override
                    public void onSuccess(LoginResult loginResult) {
                        // App code
                    }

                    @Override
                    public void onCancel() {
                        // App code
                        // savedInstanceState
                    }

                    @Override
                    public void onError(FacebookException exception) {
                        // App code
                        Toast.makeText(fb.this, exception.toString(),  Toast.LENGTH_LONG).show();
                    }
                });
        LoginManager.getInstance().logInWithReadPermissions(this, Arrays.asList("public_profile, user_groups"));

        accessTokenTracker = new AccessTokenTracker() {
            @Override
            protected void onCurrentAccessTokenChanged(
                    AccessToken oldAccessToken,
                    AccessToken currentAccessToken) {

            }
        };

        fbbt1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                try {
                    getUserData(AccessToken.getCurrentAccessToken());
                    Toast.makeText(fb.this, "Access Token: "+ AccessToken.getCurrentAccessToken().getToken().toString(), Toast.LENGTH_LONG).show();
                }
                catch (Exception e){
                    Toast.makeText(fb.this, "error is: "+e.toString(), Toast.LENGTH_LONG).show();
                }

            }
        });
    }
    catch (Exception e){
        Toast.makeText(fb.this, e.toString(),  Toast.LENGTH_LONG).show();
    }


    }


    public void getUserData(AccessToken accessToken){

     GraphRequest.newGraphPathRequest(
            accessToken, "/ 415004402015833/posts",
            new GraphRequest.Callback() {
                @Override
                public void onCompleted(GraphResponse graphResponse) {


                    try {
                        Toast.makeText(fb.this, "Object Length is : " + graphResponse.getJSONObject().length(), Toast.LENGTH_LONG).show();
                        Toast.makeText(fb.this, "request was: " + graphResponse.getRequest(), Toast.LENGTH_LONG).show();
                        String resp = graphResponse.getRawResponse();
                        Toast.makeText(fb.this, "response is: " + resp, Toast.LENGTH_LONG).show();
                    } catch (Exception e) {
                        Toast.makeText(fb.this, "error is: " + e.toString(), Toast.LENGTH_LONG).show();
                    }
                }
        }).executeAsync();
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    callbackManager.onActivityResult(requestCode, resultCode, data);
    }

    @Override
    protected void onDestroy() {
    super.onDestroy();
    try{
    accessTokenTracker.stopTracking();}
    catch (Exception e){
        Toast.makeText(fb.this, "error is: "+e.toString(), Toast.LENGTH_LONG).show();
        }
    }
} 

解决方案

I had wrongly used id of a group rather than a page. But now, i have changed it to 415004402015833 (id of a page). Now, the posts are coming. Thanks for help....

这篇关于在入门Android的FB图形API空响应的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

查看全文
登录 关闭
扫码关注1秒登录
发送“验证码”获取 | 15天全站免登陆