我在活动中有一个自定义按钮,用于允许用户通过Facebook登录。我点击的代码如下所示:
CallbackManager callback = CallbackManager.Factory.create();
List<String> permissions = Arrays.asList("email","public_profile");
LoginManager.getInstance().logInWithReadPermissions(this,permissions);
LoginManager.getInstance().registerCallback(callback, new FacebookCallback<LoginResult>() {
@Override
public void onSuccess(LoginResult loginResult) {
setUserLoggedIn(PrefUtils.Values.LOG_IN_METHOD_FACEBOOK);
}
@Override
public void onCancel() {
// todo: something
}
@Override
public void onError(FacebookException error) {
Logger.d("TAG",error.getMessage());
}
});
但是,FB登录对话框不会显示。相反,我最终得到一个错误对话框,要求我登录。我假设这会启动显示用户名和密码编辑文本的对话框。
如何获得该登录对话框?
答案 0 :(得分:1)
单击“自定义fb”按钮打开fb_login对话框
fb_login_button.performClick();
答案 1 :(得分:1)
事实证明,文档没有提及的一小步。完成从调试密钥库计算哈希后,您必须单击&#34;添加平台&#34;在您的开发者个人资料中,然后选择&#34; Android&#34;并按照屏幕上的说明进行操作。
答案 2 :(得分:0)
点击按钮点击onClick()方法
Fblogin.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
LoginManager.getInstance().logInWithReadPermissions(context,
Arrays.asList("email", "user_photos", "public_profile"));
}
});
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
callback.onActivityResult(requestCode, resultCode, data);
}
答案 3 :(得分:0)
将回调设为全局变量,即将其初始化为
FacebookSdk.sdkInitialize(getApplicationContext());
还覆盖活动的OnActivityForResult方法,并按如下方式添加callback.onActivityResult(requestCode,resultCode,data)。
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
callback.onActivityResult(requestCode, resultCode, data);
}
希望这会有所帮助。如果它不让我知道。
答案 4 :(得分:0)
执行此步骤
在开始时声明此变量
public CallbackManager callbackManager;
调用波纹管功能
private void initializeFacebookSdk(){
FacebookSdk.sdkInitialize(getApplicationContext());
callbackManager = CallbackManager.Factory.create();
}
点击按钮
调用此功能protected void connectToFacebook(){
LoginManager.getInstance().logInWithReadPermissions(this, Arrays.asList("email", "user_photos", "user_friends", "public_profile", "user_birthday"));
LoginManager.getInstance().registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
@Override
public void onSuccess(final LoginResult loginResult) {
// App code
GraphRequest request = GraphRequest.newMeRequest(loginResult.getAccessToken(), new GraphRequest.GraphJSONObjectCallback() {
@Override
public void onCompleted(JSONObject json, GraphResponse response) {
Log.v("FaceBook Response :", response.toString());
}
});
Bundle parameters = new Bundle();
parameters.putString("fields", "id,name,first_name,last_name,gender, birthday,email,link,picture");
request.setParameters(parameters);
request.executeAsync();
}
@Override
public void onCancel() {
Log.v("LoginActivity", "cancel");
}
@Override
public void onError(FacebookException exception) {
Utils.showToast(mActivity, "" + exception);
}
});
}
答案 5 :(得分:0)
我在这里分享我的工作代码。希望它会对你有所帮助。
在应用程序类中创建 然后将facebook LoginButton放入您的布局中并将其可见性设置为已消失。
然后在自定义按钮的onclick上写下这段代码: 不要忘记在初始化LoginButton 在oncreate中初始化callbackmanager后调用此函数。 这是registerfb_callback()函数 从JSON对象获取解析数据 最后是onActivityResult 希望它会有所帮助:) FacebookSdk.sdkInitialize(getApplicationContext());
btnFBLogin.performClick(); //btnFBLogin is the Facebook LoginButton.
btnLoginFB.setReadPermissions(Arrays.asList("email", "user_birthday"));
callbackManager = CallbackManager.Factory.create();
registerfb_callback();
/*Registering fb callback*/
private void registerfb_callback(){
btnLoginFB.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
@Override
public void onSuccess(LoginResult loginResult) {
showProgressDialog(); //Show dialog as your wish
String accessToken = loginResult.getAccessToken().getToken();
Log.i("accessToken", accessToken);
GraphRequest request = GraphRequest.newMeRequest(loginResult.getAccessToken(), new GraphRequest.GraphJSONObjectCallback() {
@Override
public void onCompleted(JSONObject object, GraphResponse response) {
//Here I am logging out after completing the call.
LoginManager.getInstance().logOut();
progressDialog.hide();
try {
if(object != null) {
System.out.println("GraphResponse" + response.toString());
System.out.println("JSONObjectResponse" + object.toString());
Log.i("Activity", response.toString());
// Get facebook data from login
Bundle bFacebookData = getFacebookData(object);
}
}catch (Exception e){
e.printStackTrace();
}
}
});
Bundle parameters = new Bundle();
parameters.putString("fields", "id, first_name, last_name, email,gender, birthday, location"); // Parámetros que pedimos a facebook
request.setParameters(parameters);
request.executeAsync();
}
@Override
public void onCancel() {
System.out.println("onCancel");
}
@Override
public void onError(FacebookException exception) {
Toast.makeText(Registration.this,"Network Error! Please try again!",Toast.LENGTH_LONG).show();
System.out.println("onError"+exception.toString());
}
});
}
/*Parsing facebook data from JSON Object*/
private Bundle getFacebookData(JSONObject object) {
Bundle bundle = new Bundle();
try {
String id = object.getString("id");
try {
URL profile_pic = new URL("https://graph.facebook.com/" + id + "/picture?width=200&height=150");
Log.i("profile_pic", profile_pic + "");
bundle.putString("profile_pic", profile_pic.toString());
} catch (MalformedURLException e) {
e.printStackTrace();
return null;
}
bundle.putString("idFacebook", id);
if (object.has("first_name"))
bundle.putString("first_name", object.getString("first_name"));
if (object.has("last_name"))
bundle.putString("last_name", object.getString("last_name"));
if (object.has("email"))
bundle.putString("email", object.getString("email"));
if (object.has("gender"))
bundle.putString("gender", object.getString("gender"));
if (object.has("birthday"))
bundle.putString("birthday", object.getString("birthday"));
if (object.has("location"))
bundle.putString("location", object.getJSONObject("location").getString("name"));
return bundle;
}catch (JSONException e){
e.printStackTrace();
}
return bundle;
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
callbackManager.onActivityResult(requestCode, resultCode, data);
}