BasePresenter.java

public abstract class BasePresenter<T extends MvpView> {
  HandlerThread thread;
  Looper looper;
  Handler handler;

  private T mView;

  public BasePresenter() {

  }

  public HandlerThread getThread() {
    return thread;
  }

  public Looper getLooper() {
    return looper;
  }

  public Handler getHandler() {
    return handler;
  }

  public void setHandler(Handler handler) {
    this.handler = handler;
  }

  public void attachView(T t) {
    thread = new HandlerThread(getClass().getName(), android.os.Process.THREAD_PRIORITY_BACKGROUND);
    thread.start();
    looper = thread.getLooper();
    mView = t;
  }

  public void detachView() {
    mView = null;
    if (handler != null) {
      handler.removeCallbacksAndMessages(null);
      handler = null;
    }
    if (thread != null) thread.quit();
  }

  public T getView() {
    return mView;
  }

  public boolean isViewAttached() {
    return mView != null;
  }
}