LoginWithFacebook

This Demo app will show how to login with facebook and fetch the data like image ,birthday,email and total friends.

For more details

https://developers.facebook.com/docs/facebook-login/android

Add Dependency at App level Gradle file:

1. Glide is Used to set the Images https://github.com/bumptech/glide

2. ButterKnife is to instantiate the widget http://jakewharton.github.io/butterknife/

3. Facebook sdk

you will get app_id and fb_login_protocol_scheme by creating the project on Developer.facebook.com

Add Metadata and permissions in Manifest File:

Permission:

Add Internet Permission

Metadata and Activity:

<meta-data android:name="com.facebook.sdk.ApplicationId"
    android:value="@string/facebook_app_id"/>

<activity android:name="com.facebook.FacebookActivity"
    android:configChanges=
        "keyboard|keyboardHidden|screenLayout|screenSize|orientation"
    android:label="@string/app_name" />

<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>

For Getting the KeyHash Value:

Last and most important past You have to generate keyhash value:

1. You need to install openssl in your computer
2. Goto C:\Program Files\Java\jre1.8.0_161\bin using command prompt
3. Goto openssl >>then bin >> copy that path path openssl: E:\Software\openssl\bin\openssl.exe
4. enter this command>> keytool -exportcert -alias androiddebugkey -keystore "C:\Users"Username_Of_Your_Computer_Or_Laptop".android\debug.keystore" | "Paste_OpenSSl_Path" sha1 -binary |"Paste_OpenSSl_Path " base64

5.after this command prompt asked Enter KeyStore Password: