SignUpActivity.java 文件源码

private void getUserEmail(AccessToken accessToken) {
    GraphRequest request = GraphRequest.newMeRequest(accessToken, new GraphRequest.GraphJSONObjectCallback() {
        @Override
        public void onCompleted(JSONObject object, GraphResponse response) {
            try {
                updateUserData(object.getString("email"));
            } catch (JSONException e) {
                updateUserData("");
                e.printStackTrace();
            }
        }
    });
    Bundle parameters = new Bundle();
    parameters.putString("fields", "id,email");
    request.setParameters(parameters);
    request.executeAsync();
}