android ActionBar 兼容低版本之搜索功能

1.让当前Activity 继承ActionBarActivity

public class MainActivity extends AppCompatActivity implements SearchView.OnQueryTextListener{}

2.menu 布局文件

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="@+id/action_search"
app:actionViewClass="android.support.v7.widget.SearchView"
android:icon="@mipmap/search"
android:title="搜索"
app:showAsAction="always"/>

</menu>

3.在MainActivity 中重写onCreateOptionsMenu()和onOptionsItemSelected()注意:SearchView导的是android.support.v7.widget.SearchView这个包

@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_search, menu);
MenuItem item = menu.findItem(R.id.action_search);
SearchView searchView = (SearchView) item.getActionView();
searchView.setOnQueryTextListener(this);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
return super.onOptionsItemSelected(item);
}

//SearchView 监听事件

@Overridepublic boolean onQueryTextSubmit(String s) {Toast.makeText(MainActivity.this, s, Toast.LENGTH_SHORT).show();return false;}@Overridepublic boolean onQueryTextChange(String s) {Toast.makeText(MainActivity.this, s, Toast.LENGTH_SHORT).show();return false;}