java - 等待抽屉导航关闭，然后使用空的while循环初始化Fragments

根据DrawerLayout文档的说明，“避免在动画过程中执行昂贵的操作，例如布局，因为这会导致口吃”。

因此，我尝试在继续操作之前先等待抽屉关闭:

@Override public void onItemClick(AdapterView parent
                                , View view
                                , int position
                                , long id) {
    // Close the drawer
    mDrawerLayout.closeDrawer(mDrawerList);

    ExecutorService es = Executors.newSingleThreadExecutor();
    final int mPosition = position;
    Thread navThread = new Thread(new Runnable() {
        @Override public void run() {

            // Wait for the drawer to close
            while (mDrawerLayout.isDrawerOpen(mDrawerList));

            // Initialize the Fragments.
            runOnUiThread(new Runnable() {
                @Override public void run() {
                    selectNavigationItem(mPosition);
                }
            });
        }
    });
    es.submit(navThread);
    es.shutdown();
}

即使有效，Lint也会警告我有关空的while循环的信息。没有空的while循环，如何实现此效果？

最佳答案

在ListView.OnItemClickListener中:

@Override public void onItemClick(AdapterView parent
                            , View view
                            , int position
                            , long id) {
    mPosition = position;
    mNavigationItemClicked = true;
    mDrawerLayout.closeDrawer(mDrawerList);
}

在DrawerLayout中:

public void onDrawerClosed(View view) {
    getSupportActionBar().setTitle(mTitle);
    if (mNavigationItemClicked)
        selectNavigationItem();
    mNavigationItemClicked = false;
}

在selectNavigationItem()中:

switch (mPosition) {
    ...
}