Introduction to SearchView
SearchView is an Android native search box control that provides a user interface for user search queries.
SearchView displays a search icon by default. Click the icon to expand the search box. If you want the search box to expand by default, you can use setIconifiedByDefault(false); to achieve.
SearchView property
SearchView uses
Define SearchView in xml:
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="15dp"
android:orientation="vertical"
tools:context="com.airsaid.searchviewdemo.MainActivity">
android:id="@+id/searchView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:iconifiedByDefault="false"
android:queryHint="Please enter the search content" />
android:id="@+id/listView"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1" />
Main code:
public class MainActivity extends AppCompatActivity {
private String[] mStrs = {"aaa", "bbb", "ccc", "airsaid"};
private SearchView mSearchView;
private ListView mListView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mSearchView = (SearchView) findViewById(R.id.searchView);
mListView = (ListView) findViewById(R.id.listView);
mListView.setAdapter(new ArrayAdapter(this, android.R.layout.simple_list_item_1, mStrs));
mListView.setTextFilterEnabled(true);
// 设置搜索文本监听
mSearchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
// 当点击搜索按钮时触发该方法
@Override
public boolean onQueryTextSubmit(String query) {
return false;
}
// 当搜索内容改变时触发该方法
@Override
public boolean onQueryTextChange(String newText) {
if (!TextUtils.isEmpty(newText)){
mListView.setFilterText(newText);
}else{
mListView.clearTextFilter();
}
return false;
}
});
}
}
Screenshot of the effect:
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