How to use:
Include headers:
Android: #include "android/FacebookQMLAndroid.h"
iOS: #include "ios/FacebookQMLiOS.h"
Register QML-mematype: qmlRegisterType("me.mnafees", 1, 0, "Facebook");
AndroidManifest.xml: set minimum and target SDK version
gradle.properties: set Android NDK path in systemProp.ndk_dir property
Create Facebook QML object;
Implement callbacks: onLoginSuccess, onLoginError, onLoginCancel, onShareSuccess, onShareError, onShareCancel
login() method shows native login popup