A minimalistic guide to Facebook loginsignup implementation

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  1. You have to setup the prerequisites.
  2. Add the Facebook activity to the AndroidManifest.xml file:
<activity 
    android:name="com.facebook.FacebookActivity"
    android:configChanges= "keyboard|keyboardHidden|screenLayout|screenSize|orientation"
    android:theme="@android:style/Theme.Translucent.NoTitleBar"
    android:label="@string/app_name" />
  1. Add the login button to your layout XML file:
<com.facebook.login.widget.LoginButton
    android:id="@+id/login_button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" />
  1. Now you have the Facebook button. If the user clicks on it, the Facebook login dialog will come up on top of the app’s screen. Here the user can fill in their credentials and press the Log In button. If the credentials are correct, the dialog grants the corresponding permissions and a callback is sent to your original activity containing the button. The following code shows how you can receive that callback:
loginButton.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
    @Override
    public void onSuccess(LoginResult loginResult) {
        // Completed without error. You might want to use the retrieved data here.
    }

    @Override
    public void onCancel() {
        // The user either cancelled the Facebook login process or didn't authorize the app.
    }

    @Override
    public void onError(FacebookException exception) {
        // The dialog was closed with an error. The exception will help you recognize what exactly went wrong.
    }
});

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Facebook SDK:
* A minimalistic guide to Facebook loginsignup implementation

Table Of Contents
2 Gradle
5 Intent
17 Service
19 WebView
31 SQLite
35 Glide
37 Dialog
38 ACRA
44 Handler
53 Toast
63 Menu
65 Picasso
70 Volley
71 Widgets
78 Realm
90 Spinner
95 OkHttp
102 Facebook SDK
108 TextView
109 ListView
111 Loader
118 Xposed
119 Security
121 ImageView
123 Doze Mode
130 Drawables
131 Colors
134 Fresco
139 AdMob
145 Keyboard
146 Button
150 EditText
155 Vk SDK
163 ExoPlayer
169 XMPP
175 OpenCV
177 Threads
184 ORMLite
186 TabLayout
190 LruCache
192 Zip files
194 Fastlane
199 FileIO
202 Moshi
210 VideoView
216 Paint
218 ProGuard
226 CleverTap
228 ADB shell
229 Ping ICMP
230 AIDL
234 Context
240 JCodec
242 Okio
249 FuseView
254 Looper
261 Fastjson
263 Jackson
267 Smartcard