Android Why is the Facebook SDK logout button not showing?

Question

I developed an application with a login to facebook, there are no problems in the login process. But I do not see the button when I want to log out.

Screenshot Broken App

Working application Screenshot

Broken applications gradle files;

apply plugin: 'com.android.application'

android {
    compileSdkVersion 24
    buildToolsVersion "24.0.1"
    defaultConfig {
        applicationId "com.ex.ex"
        minSdkVersion 15
        targetSdkVersion 24
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {

    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })

    // Glide image library
    compile 'com.android.support:appcompat-v7:24.2.1'
    compile 'com.android.support:design:24.2.1'
    compile 'com.android.support:support-v4:24.2.1'
    compile 'com.github.bumptech.glide:glide:3.7.0'
    compile 'com.google.android.gms:play-services-auth:9.2.1'
    compile 'com.facebook.android:facebook-android-sdk:4.1.0'

    testCompile 'junit:junit:4.12'
}

apply plugin: 'com.google.gms.google-services'

What is the source of the problem? How can i fix this?

Thank.

Answer 1

Try following Facebook for Android documentation

and use the latest version compile 'com.android.support:appcompat-v7:25.2.0'

Follow this guide

compile 'com.google.android.gms:play-services:10.2.0'

Answer 2

, LoginButton Android android sdk.

LoginButton, :

    protected void performLogout(Context context) {
        final LoginManager loginManager = getLoginManager();
        if (confirmLogout) {
            // Create a confirmation dialog
            String logout = getResources().getString(
                    R.string.com_facebook_loginview_log_out_action);
            String cancel = getResources().getString(
                    R.string.com_facebook_loginview_cancel_action);
            String message;
            Profile profile = Profile.getCurrentProfile();
            if (profile != null && profile.getName() != null) {
                message = String.format(
                        getResources().getString(
                                R.string.com_facebook_loginview_logged_in_as),
                        profile.getName());
            } else {
                message = getResources().getString(
                        R.string.com_facebook_loginview_logged_in_using_facebook);
            }
            AlertDialog.Builder builder = new AlertDialog.Builder(context);
            builder.setMessage(message)
                    .setCancelable(true)
                    .setPositiveButton(logout, new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int which) {
                            loginManager.logOut();
                        }
                    })
                    .setNegativeButton(cancel, null);
            builder.create().show();
        } else {
            loginManager.logOut();
        }

}

confirmLogout true, xml false:

confirmLogout = a.getBoolean(R.styleable.com_facebook_login_view_com_facebook_confirm_logout, true);

, , XML , confirm_logout false. .

, jave xml-, .