[Android]_ch5.6_AlertDialog複選方塊元件

[Android]_ch5.6_AlertDialog複選方塊元件

package com.example.ch5_dialog;



import org.w3c.dom.Text;



import android.app.Activity;

import android.app.AlertDialog;

import android.app.Dialog;

import android.content.DialogInterface;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.TextView;

import android.widget.Toast;





public class MainActivity extends Activity {

Button btn1,btn2;

TextView tv1;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        btn1=(Button)findViewById(R.id.button1);

        btn2=(Button)findViewById(R.id.button2);

        tv1=(TextView)findViewById(R.id.textView1);

        btn1.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

showDialog(1);

}

});

        btn2.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

showDialog(2);

}

});

    }

@Override

@Deprecated

protected Dialog onCreateDialog(int id, Bundle args) {

switch(id){

case 1:

final String items[]={"Android","Java","CCNA","Linux"};

final boolean checkedItems[]=new boolean[items.length];

return new AlertDialog.Builder(MainActivity.this)

.setTitle("購買課程")

.setCancelable(false)

.setMultiChoiceItems(items, checkedItems, new DialogInterface.OnMultiChoiceClickListener() {



@Override

public void onClick(DialogInterface dialog, int which, boolean isChecked) {

Toast.makeText(MainActivity.this, items[which]+(isChecked?"勾選":"取消"), Toast.LENGTH_SHORT).show();

}

})

.setNegativeButton("取消",new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

dialog.cancel();

}

})

.setPositiveButton("確定",new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

StringBuilder sb=new StringBuilder("購買課程如下:\n");

for(int i=0;i<items.length;i++){

if(checkedItems[i])

sb.append(items[i]+"\n");

}

tv1.setText(sb);

}

})

.show();

case 2:

return new AlertDialog.Builder(MainActivity.this)

.setTitle("結束程式嗎?")

.setCancelable(false)

.setMessage("您存檔了嗎?確定結束程式?")

.setNegativeButton("取消",new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

dialog.cancel();

}

})

.setPositiveButton("確定",new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

finish();

}

})

.show();





}





return super.onCreateDialog(id, args);

}

   



}