Common Activity for all Activities (using DataBinding)

BaseActivity.java

public abstract class BaseActivity extends AppCompatActivity {

    /**
     * DataBinding Object
     */
    private ViewDataBinding mBindingObject;

    /**
     * Context common
     */
    public Context mContext;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        mBindingObject = DataBindingUtil.setContentView(this, getLayoutResId());

        mContext = this;

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            Window window = getWindow();
            window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
            window.setStatusBarColor(getResources().getColor(R.color.colorPrimary));
        }

        init();
    }

    /**
     * Get Layout Resource ID
     * @return Layout Id
     */
    public abstract int getLayoutResId();

    /**
     * Initialization for members
     */
    public abstract void init();

    /**
     * Getting Binding Object
     * @return Binding Object
     */
    public ViewDataBinding getBindingObj() {
        return mBindingObject;
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        try {
            Runtime.getRuntime().gc();
            System.gc();
        } catch (Exception ignored) {
        }
    }
}

SplashActivity.java

public class SplashActivity extends BaseActivity {

    ActivitySplashBinding mBinding;

    @Override
    public int getLayoutResId() {
        return R.layout.activity_splash;
    }

    @Override
    public void init() {
        mBinding = (ActivitySplashBinding) getBindingObj();
    }
}