Android-TQC103點餐系統

學習重點:
(1)點選button呼叫AlertDialog
(2)將陣列的值放值AlertDialog中並將勾選的，顯示出來。

---

package COM.TQC.GDD01;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.DialogInterface.OnMultiChoiceClickListener;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

public class GDD01 extends Activity {
  private Button button1;
  private TextView text1;
  private String[] s1={"美味蟹堡","義式香腸堡","蔬菜水果堡","香蕉潛艇堡","香烤雞肉堡"};
  private boolean[] chsBool={false,false,false,false,false,false}; //先將checkbox值設為false
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    
    findview();   //宣告物件
    setlistner();    
  }
  
private void findview(){
  // TODO Auto-generated method stub
  button1 = (Button) findViewById(R.id.button1);
     text1 = (TextView) findViewById(R.id.text1);
 }
  
private void setlistner() {
 // TODO Auto-generated method stub
 button1.setOnClickListener(new Button.OnClickListener()
    {
      @Override
      public void onClick(View v)
      {
       setdialog();
      }
     });
 }
 
 private void setdialog()
 {
  AlertDialog dialog=new AlertDialog.Builder(GDD01.this)
  //.setIcon(null)//設定無圖示
  .setTitle(getResources().getString(R.string.str2))
  .setMultiChoiceItems(s1, chsBool, new OnMultiChoiceClickListener()
  {
   public void onClick(DialogInterface dialog, int which, boolean isChecked)
   {
    
   }
  })
  .setPositiveButton("確認", new DialogInterface.OnClickListener() {
   public void onClick(DialogInterface dialog, int whichButton) {
    String selectedStr = "";
    
    
    for(int _i=0;_i< chsBool.length;_i++)
    {
     if(chsBool[_i] == true)
     {
      
     selectedStr=selectedStr+"\n"+s1[_i].toString();  //換行動作
            
     }
    }
    text1.setText("您點的餐有:"+selectedStr+"\n");
   }
  })
  .setNegativeButton("離開",  new DialogInterface.OnClickListener() {
   public void onClick(DialogInterface dialog, int whichButton) {
    
   }
  })
  .create();
  
  dialog.show();
      
 }
     
    }