このコードを試してください:グラフAPIを使用してフレンドリストを取得する。 Gradleで
public class MainActivity extends AppCompatActivity {
CallbackManager callbackManager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
facebookSDKInitialize();
setContentView(R.layout.activity_main);
LoginButton loginButton = (LoginButton) findViewById(R.id.login_button);
loginButton.setReadPermissions("user_friends");
getLoginDetails(loginButton);
}
/*
* Register a callback function with LoginButton to respond to the login result.
*/
protected void getLoginDetails(LoginButton login_button){
// Callback registration
login_button.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
@Override
public void onSuccess(LoginResult login_result) {
GraphRequestAsyncTask graphRequestAsyncTask = new GraphRequest(
login_result.getAccessToken(),
//AccessToken.getCurrentAccessToken(),
"/me/friends",
null,
HttpMethod.GET,
new GraphRequest.Callback() {
public void onCompleted(GraphResponse response) {
Intent intent = new Intent(MainActivity.this,FriendsList.class);
try {
JSONArray rawName = response.getJSONObject().getJSONArray("data");
intent.putExtra("jsondata", rawName.toString());
startActivity(intent);
} catch (JSONException e) {
e.printStackTrace();
}
}
}
).executeAsync();
}
@Override
public void onCancel() {
// code for cancellation
}
@Override
public void onError(FacebookException exception) {
// code to handle error
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
callbackManager.onActivityResult(requestCode, resultCode, data);
}
protected void facebookSDKInitialize() {
FacebookSdk.sdkInitialize(getApplicationContext());
callbackManager = CallbackManager.Factory.create();
}
@Override
protected void onResume() {
super.onResume();
// Logs 'install' and 'app activate' App Events.
AppEventsLogger.activateApp(this);
}
@Override
protected void onPause() {
super.onPause();
// Logs 'app deactivate' App Event.
AppEventsLogger.deactivateApp(this);
}
:ここ
compile 'com.facebook.android:facebook-android-sdk:4.6.0'
は `facebookLoginButton.setReadPermissions( "user_friends")を追加完全Example
あります。 'をLoginButtonに渡すと、問題が解決されます。 –