我已经实现了机器人SearchView
在ActionBar
.当SearchView
获得焦点,关闭按钮[X]在合适的显示出来.我看了一下其他Android原生应用,比如联系人和Gmail.SearchView
增益聚焦时不显示关闭按钮.
如何设置我的SearchView
表现?
您也可以使用它来隐藏关闭按钮
ImageView closeBtn = (ImageView) searchView.findViewById(R.id.search_close_btn); closeBtn.setEnabled(false); closeBtn.setImageDrawable(null);
我遇到了同样的问题android.support.v7.widget.SearchView
并找到了解决方案.首先,onCreateOptionsMenu
您可以获取对SearchView及其关闭按钮的引用:
@Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { super.onCreateOptionsMenu(menu, inflater); inflater.inflate(R.menu.search, menu); MenuItem searchItem = menu.findItem(R.id.action_search); mSearchView = (SearchView) MenuItemCompat.getActionView(searchItem); try { Field searchField = SearchView.class.getDeclaredField("mCloseButton"); searchField.setAccessible(true); mSearchCloseButton = (ImageView) searchField.get(mSearchView); } catch (Exception e) { Log.e(TAG, "Error finding close button", e); } }
现在您可以尝试修改按钮.首先,我尝试使用setVisibility(View.GONE)
隐藏关闭按钮,但这不起作用,因为当用户与SearchView交互时,SearchView会重置其关闭按钮的可见性.所以我的解决方案是使用透明drawable并禁用单击关闭按钮:
if (mSearchCloseButton != null) { mSearchCloseButton.setEnabled(false); mSearchCloseButton.setImageDrawable(getResources().getDrawable(R.drawable.transparent)); }
这篇文章也帮助了我:http:
//novoda.com/blog/styling-actionbar-searchview
但是,说实话,这非常黑客.这将是清洁剂抓住从搜索查看源https://android.googlesource.com/platform/frameworks/support.git/+/master/v7/appcompat/src/android/support/v7/widget/SearchView.java和创建自己的SearchView版本,用于隐藏/显示关闭按钮.
更新:
Google刚刚发布了AppCompat v21,它对SearchView小部件进行了样式改进:http:
//android-developers.blogspot.com/2014/10/appcompat-v21-material-design-for-pre.html
设置searchView.setIconifiedByDefault(false)
将禁用折叠搜索视图,并删除关闭按钮.
您可以从SearchView对象(AppCompat v23.2.1)获取该按钮的链接:
searchView = (SearchView) MenuItemCompat.getActionView(menu.findItem(R.id.action_search)); ImageView mCloseButton = (ImageView) searchView.findViewById(android.support.v7.appcompat.R.id.search_close_btn);
然后,您可以为SearchView文本更改分配侦听器(SearchView也会更改按钮的可见性,但侦听器将在之后执行并将覆盖这些更改):
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() { @Override public boolean onQueryTextSubmit(String query) { return false; } @Override public boolean onQueryTextChange(String newText) { mCloseButton.setVisibility(newText.isEmpty() ? View.GONE : View.VISIBLE); return false; } });
最后,当SearchView从图标化状态展开时,监听器隐藏图标:
searchView.setOnSearchClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // hide "x" button if there is no text String query = searchView.getQuery().toString(); mCloseButton.setVisibility(query.isEmpty() ? View.GONE : View.VISIBLE); } });