import com.hannesdorfmann.mosby.mvp.MvpFragment; //导入依赖的package包/类
/**
 * It processes given {@link MvpFragment} to start with a given presenter. <p>
 *
 * Given {@link Fragment} has to be passive (from package {@link com.mateuszkoslacz.moviper.base.view.fragment.autoinject.passive}),
 * and has to return value from {@link #getPresenterForView(ViperView)} method in {@link
 * MvpFragment#createPresenter()}.
 * <p>
 * The alternative way to achieve this is to set the fragment presenter like this:
 * <p><blockquote><pre>
 *   SomeViperFragment fragment = new SomeViperFragment();
 *   fragment.setPresenter(somePresenter);
 * </pre></blockquote><p>
 * and return the current presenter if it's not null inside fragment, in {@link
 * MvpFragment#createPresenter()}
 * <p><blockquote><pre>
 * public SomePresenter createPresenter() {
 *    if (presenter != null) return presenter;
 *    else return new SomePresenter();
 * }
 * </pre></blockquote><p>
 */
public MvpFragment startFragment(MvpFragment fragment, ViperPresenter presenter) {
    int viewId = new Random().nextInt();
    Bundle arguments = fragment.getArguments();
    arguments.putInt(EXTRA_VIEW_ID, viewId);
    mPresenters.put(viewId, presenter);
    fragment.setArguments(arguments);
    return fragment;
}