我正在尝试从Facebook图表api获取用户照片列表,但我一直收到错误:
listObjects
我搜索了所有其他可用的答案,并尝试了所有建议,但我无法找到导致错误的原因。
这是我用来拍照的功能:
JSONException No value for photos
我创建了一个测试用户并确保他们拥有正确的权限。它正在登录,我可以获得用户公开信息。
我认为这可能是一个权限问题所以我运行了这个:
public void getUserPhotos(){
GraphRequest request = GraphRequest.newMeRequest(
AccessToken.getCurrentAccessToken(),
new GraphRequest.GraphJSONObjectCallback() {
@Override
public void onCompleted(
JSONObject object,
GraphResponse response) {
try {
//This contains all the photos with array data>>link
JSONObject photosobject = object.getJSONObject("photos");
} catch (Exception e) {
e.printStackTrace();
}
}
});
Bundle parameters = new Bundle();
parameters.putString("fields", "photos{link}");
request.setParameters(parameters);
request.executeAsync();
}
记录的响应是:
String permissions = AccessToken.getCurrentAccessToken().getPermissions().toString();
System.out.println(permissions);
所以这不是许可问题。
我登录了用户并添加了照片,因此不应该成为问题。
我看到一些示例使用[public_profile, user_friends, user_photos]
作为字段,其他人使用"photos{link}"
。
"images"
给了我这个错误:
"photos{link}"
12-28 22:34:23.991 9199-9199/com.amazon.mysampleapp W/System.err: org.json.JSONException: No value for photos
12-28 22:34:23.991 9199-9199/com.amazon.mysampleapp W/System.err: at org.json.JSONObject.get(JSONObject.java:389)
12-28 22:34:23.991 9199-9199/com.amazon.mysampleapp W/System.err: at org.json.JSONObject.getJSONObject(JSONObject.java:609)
12-28 22:34:23.991 9199-9199/com.amazon.mysampleapp W/System.err: at com.mysampleapp.Fragments.ProfileFragment$1.onCompleted(ProfileFragment.java:294)
12-28 22:34:23.991 9199-9199/com.amazon.mysampleapp W/System.err: at com.facebook.GraphRequest$1.onCompleted(GraphRequest.java:304)
12-28 22:34:23.991 9199-9199/com.amazon.mysampleapp W/System.err: at com.facebook.GraphRequest$5.run(GraphRequest.java:1368)
12-28 22:34:23.991 9199-9199/com.amazon.mysampleapp W/System.err: at android.os.Handler.handleCallback(Handler.java:751)
12-28 22:34:23.992 9199-9199/com.amazon.mysampleapp W/System.err: at android.os.Handler.dispatchMessage(Handler.java:95)
12-28 22:34:23.992 9199-9199/com.amazon.mysampleapp W/System.err: at android.os.Looper.loop(Looper.java:154)
12-28 22:34:23.992 9199-9199/com.amazon.mysampleapp W/System.err: at android.app.ActivityThread.main(ActivityThread.java:6077)
12-28 22:34:23.992 9199-9199/com.amazon.mysampleapp W/System.err: at java.lang.reflect.Method.invoke(Native Method)
12-28 22:34:23.992 9199-9199/com.amazon.mysampleapp W/System.err: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
12-28 22:34:23.992 9199-9199/com.amazon.mysampleapp W/System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
字段只返回空指针异常。
我查看了grapi api文档,发现了这个:
/ me节点是一个转换为user_id的特殊端点 访问令牌所在的人(或Facebook页面的page_id) 目前正用于进行API调用。如果您有用户访问权限 令牌,你可以使用:
检索所有用户的照片获取graph.facebook.com / me / photos
这似乎是正确的,我正在运行我的请求,所以我不确定我做错了什么。
提前感谢您的帮助。
答案 0 :(得分:1)
mainActivity.java
btnLogin.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
@Override
public void onSuccess(LoginResult loginResult) {
GraphRequest request = GraphRequest.newMeRequest(
loginResult.getAccessToken(),
new GraphRequest.GraphJSONObjectCallback() {
@Override
public void onCompleted(JSONObject object, GraphResponse response) {
Log.v("Main", response.toString());
setProfileToView(object);
}
});
Bundle parameters = new Bundle();
parameters.putString("fields", "id,name,email,gender, birthday");
request.setParameters(parameters);
request.executeAsync();
}
public void showCustomDialog(JSONObject jsonObject)
{
final Dialog dialog = new Dialog(MainActivity.this);
dialog.setContentView(R.layout.facebookdetails);
dialog.setTitle("Facebook Details");
email = (TextView)dialog.findViewById(R.id.email);
facebookName = (TextView) dialog.findViewById(R.id.name);
gender = (TextView) dialog.findViewById(R.id.gender);
infoLayout = (LinearLayout) dialog.findViewById(R.id.layout_info);
profilePictureView = (ProfilePictureView)dialog. findViewById(R.id.imageprofile);
DateofBirth= (TextView)dialog. findViewById(R.id.dob);
showProgressDialog();
try {
disconnectFromFacebook();
if(jsonObject.has("birthday"))
{
DateofBirth.setText(jsonObject.getString("birthday"));
}
if(jsonObject.has("email")){
email.setText(jsonObject.getString("email"));
}
if(jsonObject.has("gender")||jsonObject.has("name")) {
gender.setText(jsonObject.getString("gender"));
facebookName.setText(jsonObject.getString("name"));
}
profilePictureView.setPresetSize(ProfilePictureView.NORMAL);
profilePictureView.setProfileId(jsonObject.getString("id"));
infoLayout.setVisibility(View.VISIBLE);
mProgressDialog.dismiss();
} catch (JSONException e) {
e.printStackTrace();
}
dialog.show();
Button dialogButton = (Button) dialog.findViewById(R.id.dialogButtonOK);
// if button is clicked, close the custom dialog
dialogButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
dialog.dismiss();
}
});
}