2081067337ab001d102b83d329af5a0a

Android平台对应的高欢堂所编写的书籍的对应源代码 可以不用敲键盘了

package com.misoo.pkbb;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;

public class ac01 extends Activity implements OnItemClickListener {
	public static final int RELOAD_ID = Menu.FIRST;
	    public static final int EXIT_ID = Menu.FIRST + 1;
	    private ListView lv;
		private ArrayAdapter<String> adapter;
		private DataModel dm1, dm2;
		
	    @Override
	    public void onCreate(Bundle icicle) {
	        super.onCreate(icicle);
	        dm1 = new DataModel();
	        //---------------------------------
	        String[] dx = {"xx", "WW", "BB"};
	        dm2 = new DataModel(dx);
	        //---------------------------------
	        lv = new ListView(this);
	        adapter = new ArrayAdapter<String>
	               (this, android.R.layout.simple_list_item_1, dm1.loadData());
	        lv.setAdapter(adapter);
	        lv.setOnItemClickListener(this);
	        setContentView(lv);
	    }
	   	public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
			    setTitle("choice: " + String.valueOf(dm.getPrice(arg2)));
	  		} 
	    @Override
		 public boolean onCreateOptionsMenu(Menu menu) {
		        super.onCreateOptionsMenu(menu);
		        menu.add(0, RELOAD_ID, 0, "Reload");
		        MenuItem im = menu.findItem(RELOAD_ID);
		        im.setIcon(R.drawable.reload_im);
		        menu.add(0, EXIT_ID, 1, "Exit");
		        im = menu.findItem(EXIT_ID);
		        im.setIcon(R.drawable.exit_im);
		        return true;
		 }
		 @Override
		    public boolean onOptionsItemSelected(MenuItem item) {
		        switch (item.getItemId()) {
		        case RELOAD_ID:
		           adapter = new ArrayAdapter<String>
		               (this, android.R.layout.simple_list_item_1, dm2.loadData());
		           lv.setAdapter(adapter);
		           break;
		        case EXIT_ID:
		            finish();
		            break;
		        }
		        return super.onOptionsItemSelected(item);
		    }
	}