我需要登录Facebook并获取电子邮件,用户名,照片等字段。我使用Facebook SDK。当没有安装官方Facebook应用程序时,按下登录按钮,打开Web视图窗口,请求邮件和密码,然后,我可以获得令牌和数据。但是当在设备上安装官方Facebook应用程序时,我的应用程序无法正常工作,我按下登录按钮,但我没有看到对话框(Facebook活动没有启动)。我使用登录没有标准Facebook LogInButton。我怎么解决它?
private CallbackManager callbackManager;
@Override
protected void onCreate(Bundle savedInstanceState) {
FacebookSdk.sdkInitialize(this);
callbackManager = CallbackManager.Factory.create();
LoginManager.getInstance().registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
@Override
public void onSuccess(final LoginResult loginResult) {
GraphRequest request = GraphRequest.newMeRequest(loginResult.getAccessToken(), new GraphRequest.GraphJSONObjectCallback() {
@Override
public void onCompleted(JSONObject jsonObject, GraphResponse graphResponse) {
Bundle bFacebookData = getFacebookData(jsonObject);
new FacebookAuthorization(AuthenticationActivity.this, loginResult.getAccessToken().getToken(),
bFacebookData.getString("name"),
bFacebookData.getString("profile_pic"),
bFacebookData.getString("email")).execute();
}
});
Bundle parameters = new Bundle();
parameters.putString("fields", "id, first_name, last_name, email,gender, birthday, location");
request.setParameters(parameters);
request.executeAsync();
}
@Override
public void onCancel() {
}
@Override
public void onError(FacebookException e) {
}
});
}
public void facebookAuth(View v){
if (new InternetConnection(getApplicationContext()).isNetworkConnection()) {
LoginManager.getInstance().logInWithReadPermissions(this, Arrays.asList("public_profile", "user_friends"));
} else {
Toast.makeText(getApplicationContext(), getResources().getString(R.string.no_internet_connection), Toast.LENGTH_SHORT).show();
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if(callbackManager.onActivityResult(requestCode, resultCode, data)) {
return;
}
}
private Bundle getFacebookData(JSONObject object) {
try {
Bundle bundle = new Bundle();
String id = object.getString("id");
try {
URL profile_pic = new URL("https://graph.facebook.com/" + id + "/picture?width=200&height=150");
bundle.putString("profile_pic", profile_pic.toString());
} catch (MalformedURLException e) {
e.printStackTrace();
return null;
}
if (object.has("first_name") && object.has("last_name")){
bundle.putString("name", object.getString("first_name") + " " + object.getString("last_name"));
}
if (object.has("email")){
bundle.putString("email", object.getString("email"));
}
return bundle;
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}