How to login facebook using sdk 4.1.0 in android? -


[i"m writing codes login page application.i have made login successful given email , password i"m facing problem while writing codes login facebook.i have checked https://developers.facebook.com/docs/facebook-login/android/v2.3

but still i"m getting errors while running code per instructions.i"m new android developing...so proper praiseworthy.thankx in advance.]1

here i"m providing working solution facebook login sdk4.

first of add dependency on build.gradle(module app) under dependencies {......

compile 'com.facebook.android:facebook-android-sdk:4.1.0' } sync gradle.... thereafter,in android manifest following changes:-

<uses-permission android:name="android.permission.internet"/> <uses-permission android:name="android.permission.access_network_state"/> <uses-permission android:name="android.permission.get_accounts" /> <uses-permission android:name="android.permission.use_credentials" />  <meta-data         android:name="com.facebook.sdk.applicationid"         android:value="@string/app_id"/> //write app_id u have generated in res/values/strings.xml folder. <provider android:authorities="com.facebook.app.facebookcontentprovider456579934439214"               android:name="com.facebook.facebookcontentprovider"               android:exported="true" />   <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" />

after write following codes in ur mainactivity class:

    public class mainactivity extends actionbaractivity { loginbutton loginbutton; callbackmanager callbackmanager; @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);      facebooksdk.sdkinitialize(this.getapplicationcontext());     callbackmanager = callbackmanager.factory.create();      setcontentview(r.layout.activity_main);      loginbutton = (loginbutton) findviewbyid(r.id.login_button);     loginbutton.setreadpermissions("email", "user_likes", "user_friends");      loginbutton.setonclicklistener(new view.onclicklistener() {         @override         public void onclick(view v) {              //callback registration              loginmanager.getinstance().registercallback(callbackmanager,                     new facebookcallback<loginresult>() {                         @override                         public void onsuccess(loginresult loginresult) {                             // app code                              loginmanager.getinstance().loginwithreadpermissions(mainactivity.this, arrays.aslist("public_profile", "user_friends"));                             log.e("-->", arrays.aslist("public_profile", "user_friends").tostring());                             toast.maketext(getapplication(), "success", toast.length_short).show();                           }                          @override                         public void oncancel() {                             // app code                             toast.maketext(getapplication(),"fail",toast.length_short).show();                         }                          @override                         public void onerror(facebookexception exception) {                             // app code                             toast.maketext(getapplication(),"error",toast.length_short).show();                         }                     });         }     });  }    @override protected void onactivityresult(final int requestcode, final int resultcode, final intent data) {     super.onactivityresult(requestcode, resultcode, data);     callbackmanager.onactivityresult(requestcode, resultcode, data); }

}

my activity_main.xml file follows:-

<relativelayout xmlns:android="http://schemas.android.com/apk/res/android"             xmlns:tools="http://schemas.android.com/tools"             android:layout_width="match_parent"             android:layout_height="match_parent"             android:paddingleft="@dimen/activity_horizontal_margin"             android:paddingright="@dimen/activity_horizontal_margin"             android:paddingtop="@dimen/activity_vertical_margin"             android:paddingbottom="@dimen/activity_vertical_margin"             tools:context=".mainactivity">  <com.facebook.login.widget.loginbutton     android:id="@+id/login_button"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_gravity="center_horizontal"     android:layout_margintop="30dp"     android:layout_marginbottom="30dp" />

u can customize button per requirement


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