import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import android.os.Bundle;
import android.provider.UserDictionary.Words;
import android.app.Activity;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.Intent;
import android.database.Cursor;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class DictResolver extends Activity {
ContentResolver contentResolver;
Button insert;
Button search;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_dict_resolver);
//获取系统的ContentResolver对象
contentResolver = getContentResolver();
insert = (Button) findViewById(R.id.insert);
search = (Button) findViewById(R.id.search);
//为insert按钮的单击事件绑定事件监听器
insert.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// 获取用户输入
String word = ((EditText)findViewById(R.id.word)).getText().toString();
String detail = ((EditText)findViewById(R.id.detail)).getText().toString();
//插入生词记录
ContentValues values = new ContentValues();
values.put(mediaprovidertest.Words.Word.WORD, word);
values.put(mediaprovidertest.Words.Word.DETAIL, detail);
contentResolver.insert(mediaprovidertest.Words.Word.DICT_CONTENT_URI, values);
//显示提示信息
Toast.makeText(DictResolver.this, “添加单词成功!”, 8000).show();
}
});
//为search按钮的单击事件绑定事件监听器
search.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// 获取用户输入
String key = ((EditText)findViewById(R.id.key)).getText().toString();
//执行查询
Cursor cursor = contentResolver.query(
mediaprovidertest.Words.Word.DICT_CONTENT_URI,
null, “word like ? or detail like ?”,
new String[]{“%”+key+”%”,”%”+key+”%”}, null);
//创建一个Bundle
Bundle data = new Bundle();
data.putSerializable(“data”, converCursorToList(cursor));
//创建一个Intent
Intent intent = new Intent(DictResolver.this, ResultActivity.class);
intent.putExtras(data);
//启动Activity
startActivity(intent);
}
});
}
private ArrayList<Map<String, String>> converCursorToList(Cursor cursor){
ArrayList<Map<String, String>> result = new ArrayList<Map<String,String>>();
//遍历Cursor结果集
while(cursor.moveToNext()){
//将结果集中的数据存入ArrayList中
Map<String, String> map = new HashMap<String, String>();
//取出查询记录中第2列、第3列的值
map.put(mediaprovidertest.Words.Word.WORD, cursor.getString(1));
map.put(mediaprovidertest.Words.Word.DETAIL, cursor.getString(2));
result.add(map);
}
return result;
}
}