SearchView初始化后闪退

package com.example.joo;

import android.app.Activity;
import android.os.Bundle;
import android.support.v7.widget.SearchView;

public class Search_zhaopinhui extends Activity {

private SearchView sv;

@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.test);
    sv = (SearchView) findViewById(R.id.test_search);//加入这句就闪退
}

}
求大神指教

---

你这里要使用android.widget.SearchView，android.support.v7.widget.SearchView是用在Actionbar(Toolbar)的组建，要在onCreateOptionsMenu初始化,

用法如下：

• 定义一个main.xml

xml<item
    android:id="@+id/action_search"
    android:icon="@android:drawable/ic_menu_search"
    app:showAsAction="always"
    app:actionViewClass="android.support.v7.widget.SearchView"
    android:title="Search"/>

• 在Activity中

java    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater menuInflater = getMenuInflater();
        menuInflater.inflate(R.menu.main, menu);
        MenuItem searchItem = menu.findItem(R.id.action_search);          
        return true;
     }