package com.itheima.studentsystem;



import java.util.List;



import com.itheima.studentsystem.domain.Student;



import android.app.Activity;

import android.os.Bundle;

import android.text.TextUtils;

import android.view.View;

import android.view.ViewGroup;

import android.widget.BaseAdapter;

import android.widget.EditText;

import android.widget.ImageView;

import android.widget.LinearLayout;

import android.widget.ListAdapter;

import android.widget.ListView;

import android.widget.RadioGroup;

import android.widget.TextView;

import android.widget.Toast;



public class MainActivity extends Activity {



	private EditText ed_name;

	private RadioGroup rgb;

	private ListView lv;

	

	private StudentDao sdao;

	

	@Override

	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		setContentView(R.layout.activity_main);

		

		//初始化

		ed_name = (EditText) findViewById(R.id.ed_name);

		rgb= (RadioGroup) findViewById(R.id.rgb);

		lv = (ListView) findViewById(R.id.lv);

		sdao = new StudentDao(this);

		

		//refreshView();

		lv.setAdapter(new MyAdapter());

		

	}

	

	public void save(View v){

		

		String name = ed_name.getText().toString().trim();

		

		if(TextUtils.isEmpty(name)){

			Toast.makeText(this, "学生信息不能为空", 0).show();

			return;

		}

		

		String sex ="male";

		

		int id = rgb.getCheckedRadioButtonId();

		if(id==R.id.male){

			sex ="male";

		}else{

			sex ="female";

		}

		

		//将数据 保存到数据库 中去 

		

		// 拿到 dao 

		

		Student st = new Student("xjlkj",name,sex);

		sdao.add(st);

		Toast.makeText(this, "保存  "+ name+"成功", 0).show();

		//将 所有的 数据 同步的显示 到 屏幕上去 

		

		//查询 现有的数据

		lv.setAdapter(new MyAdapter());

	}



	

	class MyAdapter extends BaseAdapter{

		

		public List<Student> students = sdao.getAll();

		@Override

		public int getCount() {

			// TODO Auto-generated method stub

			int len = students.size();

			//System.out.println("len = "+len);

			

			return len;

		}

		

		/*

		 

		  View v;

        if (convertView == null) {

            v = newView(mContext, mCursor, parent);

        } else {

            v = convertView;

        }

		 

		 */

		

		@Override

		public View getView(int position, View convertView, ViewGroup parent) {

			

			  View view;

		      if (convertView == null) {

		        view = View.inflate(MainActivity.this, R.layout.item, null);

		      } else {

		        view = convertView;

		       }



			//View view = View.inflate(MainActivity.this, R.layout.item, null);

			ImageView iv = (ImageView)view.findViewById(R.id.item_iv);

			TextView tv = (TextView)view.findViewById(R.id.item_tv);

			Student student = students.get(position);

			String sex = student.getSex();

			if("male".equals(sex))

			{

				iv.setImageResource(R.drawable.nan);

			}else{

				iv.setImageResource(R.drawable.nv);

			}

			

			tv.setText(student.getName()+",位置:"+position);

			//System.out.println(view.toString());

			return view;

		}



		@Override

		public Object getItem(int position) {

			// TODO Auto-generated method stub

			return null;

		}



		@Override

		public long getItemId(int position) {

			// TODO Auto-generated method stub

			return 0;

		}



		

		

		

	}

	

//	private void refreshView() {

//		

//		// 将现有的 全部给清空一下 

//		//ll.removeAllViews();

//		lv.removeAllViews();

//		

//		

//	}

}