自定义Facebook登录按钮-Android
我正在关注这一点,但到目前为止,我无法让它工作,虽然这是一年前左右的事 我正在使用AndroidStudio 1.2.2和FacebookSDK 4 我想使用自定义按钮简单登录facebook,如下图所示: 现在,在教程中的示例中,我遇到了自定义Facebook登录按钮-Android,android,facebook,facebook-sdk-4.0,Android,Facebook,Facebook Sdk 4.0,我正在关注这一点,但到目前为止,我无法让它工作,虽然这是一年前左右的事 我正在使用AndroidStudio 1.2.2和FacebookSDK 4 我想使用自定义按钮简单登录facebook,如下图所示: 现在,在教程中的示例中,我遇到了Session变量的问题,它说它无法解决它,而且getActivity() naybody在FacebookSDK4.0上试过这个吗 这是一种正确的方法,还是有更先进的方法 提前谢谢 第1步: 首先添加FrameLayout并使facebook按钮可见性=“
Session
变量的问题,它说它无法解决它,而且getActivity()
naybody在FacebookSDK4.0上试过这个吗
这是一种正确的方法,还是有更先进的方法
提前谢谢 第1步:
首先添加FrameLayout并使facebook按钮可见性=“消失”,然后添加自定义按钮。
别忘了放xmlns:facebook=”http://schemas.android.com/apk/res-auto“
在主布局中
<FrameLayout
android:id="@+id/FrameLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<com.facebook.login.widget.LoginButton
android:id="@+id/login_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="gone" />
<Button
android:id="@+id/fb"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#416BC1"
android:onClick="onClick"
android:text="FaceBook"
android:textColor="#ffffff"
android:textStyle="bold" />
</FrameLayout>
第4步:
不要忘记添加以下代码
@Override
protected void onActivityResult(int requestCode, int responseCode,
Intent data) {
super.onActivityResult(requestCode, responseCode, data);
callbackManager.onActivityResult(requestCode, responseCode, data);
}
第五步:
将自定义按钮单击设置为FacebookLogin按钮单击
public void onClick(View v) {
if (v == fb) {
loginButton.performClick();
}
}
第6步:
要以编程方式注销,请使用此选项
LoginManager.getInstance().logOut()
步骤7:您可以通过配置文件找到已登录或未登录的用户
profile = Profile.getCurrentProfile().getCurrentProfile();
if (profile != null) {
// user has logged in
} else {
// user has not logged in
}
IMO所选答案中有一部分是解决方法不正确的。 因此,需要进行以下更改以使其正确:
<com.facebook.login.widget.LoginButton
android:id="@+id/login_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="gone" />
@Override
protected void onCreate(Bundle savedInstanceState) {
// Some code
callbackManager = CallbackManager.Factory.create();
LoginManager.getInstance().registerCallback(
callbackManager,
new FacebookCallback < LoginResult > () {
@Override
public void onSuccess(LoginResult loginResult) {
// Handle success
}
@Override
public void onCancel() {
}
@Override
public void onError(FacebookException exception) {
}
}
);
}
public void onClick(View v) {
if (v == fb) {
LoginManager.getInstance().logInWithReadPermissions(
this,
Arrays.asList("user_photos", "email", "user_birthday", "public_profile")
);
}
}
// this part was missing thanks to wesely
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
callbackManager.onActivityResult(requestCode, resultCode, data);
}
@覆盖
创建时受保护的void(Bundle savedInstanceState){
//一些代码
callbackManager=callbackManager.Factory.create();
LoginManager.getInstance().registerCallback(
回拨经理,
新建FacebookCallback(){
@凌驾
成功时公共无效(LoginResult LoginResult){
//成功
}
@凌驾
公开作废{
}
@凌驾
public void onError(facebook异常){
}
}
);
}
公共void onClick(视图v){
如果(v==fb){
LoginManager.getInstance().logInWithReadPermissions(
这
Arrays.asList(“用户照片”、“电子邮件”、“用户生日”、“公共档案”)
);
}
}
//多亏了wesely,这一部分不见了
@凌驾
受保护的void onActivityResult(int请求代码、int结果代码、意图数据){
super.onActivityResult(请求代码、结果代码、数据);
callbackManager.onActivityResult(请求代码、结果代码、数据);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
callbackManager.onActivityResult(requestCode, resultCode, data);
}
然后就可以了。这很简单。
在布局文件中添加一个按钮,如
<Button
android:layout_width="200dp"
android:layout_height="wrap_content"
android:text="Login with facebook"
android:textColor="#ffff"
android:layout_gravity="center"
android:textStyle="bold"
android:onClick="fbLogin"
android:background="@color/colorPrimary"/>
并在onClick中放置LoginManager的registercallback()方法
因为这个方法会自动执行
比如:
public void fbLogin(视图)
{
//编辑前:
//LoginManager.getInstance().logInWithReadPermissions(这是数组.asList(“用户照片”、“电子邮件”、“公共配置文件”、“用户帖子”、“AccessToken”));
LoginManager.getInstance().logInWithReadPermissions(这个,Arrays.asList(“用户照片”、“电子邮件”、“公共配置文件”、“用户帖子”);
LoginManager.getInstance().logInWithPublishPermissions(这是Arrays.asList(“发布操作”);
LoginManager.getInstance().registerCallback(callbackManager,
新建FacebookCallback()
{
@凌驾
成功时公共无效(LoginResult LoginResult)
{
//应用程序代码
}
@凌驾
公开作废
{
//应用程序代码
}
@凌驾
public void onError(facebook异常)
{
//应用程序代码
}
});
}
玩得开心简单的答案是添加facebookButton.performClick()
insidecutomBtn.setOnClickListener
私人登录按钮fb_connect;
专用线路布局mfb_connect;
//facebook sdk中的按钮
fb_connect=(登录按钮)findViewById(R.id.fb_connect);
//处理“从我的自定义按钮单击”以执行操作“单击facebook sdk”按钮
mfb_connect=(LinearLayout)findViewById(R.id.mfb_connect);
mfb_connect.setOnClickListener(新视图.OnClickListener(){
@凌驾
公共void onClick(视图){
fb_connect.performClick();
}
});
这将实现以下目标:
作为对Harvi和Shehabix回答的补充,我建议添加此方法,因为它在Firebase Auth中注册身份验证 应在
LoginManager
的“成功时”内调用此方法
private void handleFacebookAccessToken(AccessToken token) {
AuthCredential credential = FacebookAuthProvider.getCredential(token.getToken());
mAuth.signInWithCredential(credential)
.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
if (task.isSuccessful()) {
//Toast.makeText(MainActivity.this, "Autenticando",Toast.LENGTH_SHORT).show();
} else {
// If sign in fails, display a message to the user.
Toast.makeText(MainActivity.this, "Authentication failed.",
Toast.LENGTH_SHORT).show();
//updateUI(null);
}
}
});
}
私有无效handleFacebookAccessToken(AccessToken令牌){
AuthCredential credential=FacebookAuthProvider.getCredential(token.getToken());
mAuth.SIGNWITH凭证(凭证)
.addOnCompleteListener(这是新的OnCompleteListener(){
@凌驾
未完成的公共void(@NonNull任务){
if(task.issusccessful()){
//Toast.makeText(MainActivity.this,“Autenticando”,Toast.LENGTH_SHORT.show();
}否则{
//如果登录失败,则向用户显示消息。
Toast.makeText(MainActivity.this,“身份验证失败”,
吐司,长度(短)
public void fbLogin(View view)
{
// Before Edit:
// LoginManager.getInstance().logInWithReadPermissions(this, Arrays.asList("user_photos", "email", "public_profile", "user_posts" , "AccessToken"));
LoginManager.getInstance().logInWithReadPermissions(this, Arrays.asList("user_photos", "email", "public_profile", "user_posts"));
LoginManager.getInstance().logInWithPublishPermissions(this, Arrays.asList("publish_actions"));
LoginManager.getInstance().registerCallback(callbackManager,
new FacebookCallback<LoginResult>()
{
@Override
public void onSuccess(LoginResult loginResult)
{
// App code
}
@Override
public void onCancel()
{
// App code
}
@Override
public void onError(FacebookException exception)
{
// App code
}
});
}
private void handleFacebookAccessToken(AccessToken token) {
AuthCredential credential = FacebookAuthProvider.getCredential(token.getToken());
mAuth.signInWithCredential(credential)
.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
if (task.isSuccessful()) {
//Toast.makeText(MainActivity.this, "Autenticando",Toast.LENGTH_SHORT).show();
} else {
// If sign in fails, display a message to the user.
Toast.makeText(MainActivity.this, "Authentication failed.",
Toast.LENGTH_SHORT).show();
//updateUI(null);
}
}
});
}
try this
// Facebook Button
LoginButton loginButton = findViewById(R.id.loginbtn);
// Your Custom Button
binding.fbBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
loginButton.callOnClick();
}
});
public class SignInFragment extends Fragment implements
> FragmentChangeListener{
> private Button facebook;
private FirebaseAuth firebaseAuth;
private CallbackManager mCallBackManager;
private LoginButton loginButton;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_sign_in, container, false);
facebook = view.findViewById(R.id.facebookButton);
loginButton = view.findViewById(R.id.facebookBtn);
firebaseAuth = FirebaseAuth.getInstance();
facebook.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
loginButton.callOnClick();
}
});
loginButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mCallBackManager = CallbackManager.Factory.create();
loginButton.setFragment(SignInFragment.this);
loginButton.setPermissions("email","public_profile");
loginButton.registerCallback(mCallBackManager, new FacebookCallback<LoginResult>() {
@Override
public void onSuccess(LoginResult loginResult) {
handleFacebookAccessToken(loginResult.getAccessToken());
}
@Override
public void onCancel() {
Toast.makeText(getContext(),"Is Cancelled",Toast.LENGTH_LONG).show();
}
@Override
public void onError(FacebookException error) {
Toast.makeText(getContext(),error.getMessage(),Toast.LENGTH_LONG).show();
}
});
}
});
return view;
}
@Override
public void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
mCallBackManager.onActivityResult(requestCode, resultCode, data);
}
private void handleFacebookAccessToken(AccessToken token) {
AuthCredential credential = FacebookAuthProvider.getCredential(token.getToken());
firebaseAuth.signInWithCredential(credential)
.addOnCompleteListener(getActivity(), new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
if (task.isSuccessful()) {
// Sign in success, update UI with the signed-in user's information
FirebaseUser user = firebaseAuth.getCurrentUser();
startActivity(new Intent(getContext(),MainActivity.class));
} else {
// If sign in fails, display a message to the user.
Toast.makeText(getContext(), task.getException().getMessage(),
Toast.LENGTH_SHORT).show();
}
}
});
}