android - 检测点击操作栏后退按钮 -(点击操作栏后退按钮时 OnOptionsItemSelected 不调用)

Question

我有一个包含 searchview 的操作栏。当用户单击搜索按钮并折叠搜索 View 时，操作栏会在左侧显示一个后退按钮。

我们如何检测用户何时点击了这个后退按钮？

编辑

根据答案，我检查了我的 OnOptionsItemSelected 但它也没有调用。这是我的 OnOptionsItemSelected 的代码:

@Override
public boolean onOptionsItemSelected(MenuItem item) {

    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();

    if (item != null && id == android.R.id.home) {
        if (mNavigationDrawerFragment.isDrawerOpen(Gravity.RIGHT)) {
            mNavigationDrawerFragment.closeDrawer(Gravity.RIGHT);
        } else {
            mNavigationDrawerFragment.openDrawer(Gravity.RIGHT);

        }
        return true;
    }
    if (id == R.id.action_search) {
        return true;
    }
    return super.onOptionsItemSelected(item);
}

Answer 1

把它放在 onCreateOptionsMenu 方法上:

MenuItemCompat.setOnActionExpandListener(menu.findItem(R.id.action_search), new MenuItemCompat.OnActionExpandListener() {
    @Override
    public boolean onMenuItemActionExpand(MenuItem item) {

        return true;
    }

    @Override
    public boolean onMenuItemActionCollapse(MenuItem item) {

        //DO SOMETHING WHEN THE SEARCHVIEW IS CLOSING

        return true;
    }
});