[英]Facebook Android SDK login error
I am trying to implement facebook login in my app which I have already used before in my other apps. 我正在尝试在我的应用程序中实现我以前在其他应用程序中已经使用过的facebook登录。 So in this app, when I try to login, the callback for login is always giving an error and I don't know what is causing it. 因此,在此应用中,当我尝试登录时,登录回调始终会显示错误,并且我不知道是什么原因引起的。 Please correct me if my code is wrong anywhere. 如果我的代码在任何地方都不对,请纠正我。
public class LoginActivity extends AppCompatActivity {
Button login;
LoginButton loginButton;
CallbackManager callbackManager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
FacebookSdk.sdkInitialize(getApplicationContext());
AppEventsLogger.activateApp(this);
setContentView(R.layout.activity_login);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
login = (Button) findViewById(R.id.login);
login.setVisibility(View.GONE);
loginButton = new LoginButton(this);
loginButton.setReadPermissions("public_profile");
AccessToken accessToken = AccessToken.getCurrentAccessToken();
if (accessToken != null) {
startActivity(new Intent(LoginActivity.this, MainActivity.class));
finish();
}
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
login.setVisibility(View.VISIBLE);
}
}, 2000);
login.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
loginButton.performClick();
}
});
callbackManager = CallbackManager.Factory.create();
LoginManager.getInstance().registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
@Override
public void onSuccess(LoginResult loginResult) {
// App code
startActivity(new Intent(LoginActivity.this, MainActivity.class));
finish();
}
@Override
public void onCancel() {
// App code
Log.d("LoginActivity", "Cancelled");
Toast.makeText(getApplicationContext(), "Cancelled", Toast.LENGTH_SHORT).show();
}
@Override
public void onError(FacebookException exception) {
// App code
Log.d("LoginActivity", "Error Occurred");
Toast.makeText(getApplicationContext(), "Error Occurred", Toast.LENGTH_SHORT).show();
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
callbackManager.onActivityResult(requestCode, resultCode, data);
}
}
And I have also added the necessary things in my Manifest such as AppID and 而且我还在清单中添加了必要的内容,例如AppID和
<activity
android:name="com.facebook.CustomTabActivity"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:scheme="@string/fb_login_protocol_scheme" />
</intent-filter>
</activity>
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