搜索查看结果列表宽度 [英] SearchView results list width

问题描述

有没有一种方法，使搜索查看的结果列表占据整个屏幕宽度？我已经使用自定义布局搜索查看试过，但是这并不会改变搜索结果列表的宽度。 见截图：

Is there a way to make SearchView's results list occupy whole screen width? I've tried using custom layout for SearchView, but this doesn't change the search results list's width. See screenshot:

推荐答案

是的，这是可能的。要做到这一点，我们应该设置宽度为整个 DropDownView ，不仅为项目。我们可以通过调用 setDropDownWidth AutoCompleteTextView 的设置。但有一个问题。 DropDownView 的宽度和横向偏移其边界改变时计算里面搜索查看。为了得到一个解决办法，我们可以添加到搜索查看我们自己 OnLayoutChangeListener 在这里我们计算并设定<$ C $的高度C> DropDownView 。下面code完全正与 AppCompat ：

Yes, it is possible. To achieve this we should set width of whole DropDownView, not only for items. We can set it by calling setDropDownWidth of AutoCompleteTextView. But there is one problem. DropDownView's width and horizontal offset are calculated inside SearchView each time its bounds is changed. To get a workaround we can add to SearchView our own OnLayoutChangeListener where we calculate and set the height of DropDownView. The following code is fully working with AppCompat:

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // inflate our menu
    getMenuInflater().inflate(R.menu.search_menu, menu);

    // find MenuItem and get SearchView from it
    MenuItem searchMenuItem = menu.findItem(R.id.search);
    SearchView searchView = (SearchView) searchMenuItem.getActionView();

    // id of AutoCompleteTextView
    int searchEditTextId = R.id.search_src_text; // for AppCompat

    // get AutoCompleteTextView from SearchView
    final AutoCompleteTextView searchEditText = (AutoCompleteTextView) searchView.findViewById(searchEditTextId);
    final View dropDownAnchor = searchView.findViewById(searchEditText.getDropDownAnchor());
    if (dropDownAnchor != null) {
        dropDownAnchor.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
            @Override
            public void onLayoutChange(View v, int left, int top, int right, int bottom,
                                       int oldLeft, int oldTop, int oldRight, int oldBottom) {

                // calculate width of DropdownView


                int point[] = new int[2];
                dropDownAnchor.getLocationOnScreen(point);
                // x coordinate of DropDownView
                int dropDownPadding = point[0] + searchEditText.getDropDownHorizontalOffset();

                Rect screenSize = new Rect();
                getWindowManager().getDefaultDisplay().getRectSize(screenSize);
                // screen width
                int screenWidth = screenSize.width();

                // set DropDownView width
                searchEditText.setDropDownWidth(screenWidth - dropDownPadding * 2);
            }
        });
    }

    return super.onCreateOptionsMenu(menu);
}

如果您使用全息只是改变了行 INT searchEditTextId = R.id.search_src_text; 到下面的一个：

If you use Holo just change the line int searchEditTextId = R.id.search_src_text; to the below one:

int searchEditTextId = getResources().getIdentifier("android:id/search_src_text", null, null);

这篇关于搜索查看结果列表宽度的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！