如何检测 SearchView 是否展开？

Question

我有如下菜单项：

<item
    android:id="@+id/action_search"
    android:title="search"
    app:actionViewClass="android.support.v7.widget.SearchView"
    app:showAsAction="always"/>

@Override
public boolean onCreateOptionsMenu( Menu menu ) {
  getMenuInflater().inflate( R.menu.passenger, menu );
  searchItem = menu.findItem( R.id.action_search );
  searchView = (SearchView)MenuItemCompat.getActionView( searchItem );
  searchView.setSubmitButtonEnabled( false );
  return super.onCreateOptionsMenu( menu );
}

我想检查 searchView 是否展开。

我尝试了 searchItem.isActionViewExpanded() 和 searchView.isHovered()，但其中 none 成功了。

我错过了什么？

TIA

Answer 1

尝试searchItem.isIconified()

Returns the current iconified state of the SearchView.

Returns

true if the SearchView is currently iconified, false if the search field is fully visible.

http://developer.android.com/reference/android/widget/SearchView.html#isIconified%28%29

Answer 2

searchView.setOnSearchClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //do what you want when search view expended
            }
        });
        searchView.setOnCloseListener(new SearchView.OnCloseListener() {
            @Override
            public boolean onClose() {
                //do what you want  searchview is not expanded
                return false;
            }
        });

Answer 3

试试这个，它会检测用户何时点击搜索图标：

在科特林中：

    searchView.setOnQueryTextFocusChangeListener { _ , hasFocus ->
        if (hasFocus) {
            // searchView expanded
        } else {
            // searchView not expanded
        }
    }

在Java中：

searchView.setOnQueryTextFocusChangeListener(new View.OnFocusChangeListener() {
    @Override
    public void onFocusChange(View v, boolean hasFocus) {
        if (hasFocus) {
            // searchView expanded
        } else {
            // searchView not expanded
        }
    }
});