【android】AlertDialog 匿名内部类的使用

import android.app.Activity;

import android.app.AlertDialog;

import android.app.Dialog;

import android.content.DialogInterface;

import android.os.Bundle;

import android.util.Log;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.ListView;

public class Main extends Activity implements OnClickListener

{

private final int DIALOG_DELETE_FILE = 1;

private final int DIALOG_SIMPLE_LIST = 2;

private final int DIALOG_SINGLE_CHOICE_LIST = 3;

private final int DIALOG_MULTI_CHOICE_LIST = 4;

private ListView lv = null;

private String[] provinces = new String[]

{ "辽宁省", "山东省", "河北省", "福建省", "广东省", "黑龙江省" };

private ButtonOnClick buttonOnClick = new ButtonOnClick(1);

@Override

public void onClick(View view)

{

switch (view.getId())

{

case R.id.btnDeleteFile:

showDialog(DIALOG_DELETE_FILE);

break;

case R.id.btnSimpleList:

showDialog(DIALOG_SIMPLE_LIST);

break;

case R.id.btnSingleChoiceList:

showDialog(DIALOG_SINGLE_CHOICE_LIST);

break;

case R.id.btnMultiChoiceList:

showDialog(DIALOG_MULTI_CHOICE_LIST);

break;

case R.id.btnRemoveDialog:

removeDialog(DIALOG_DELETE_FILE);

removeDialog(DIALOG_SIMPLE_LIST);

removeDialog(DIALOG_SINGLE_CHOICE_LIST);

removeDialog(DIALOG_MULTI_CHOICE_LIST);

break;

}

}

@Override

protected Dialog onCreateDialog(int id)

{

Log.d("dialog", String.valueOf(id));

switch (id)

{

case DIALOG_DELETE_FILE:

return new AlertDialog.Builder(this).setIcon(

R.drawable.question).setTitle("是否删除文件")

.setPositiveButton("确定",

new DialogInterface.OnClickListener()

{

public void onClick(DialogInterface dialog,

int whichButton)

{

new AlertDialog.Builder(Main.this)

.setMessage("文件已经被删除.")

.create().show();

}

}).setNegativeButton("取消",

new DialogInterface.OnClickListener()

{

public void onClick(DialogInterface dialog,

int whichButton)

{

new AlertDialog.Builder(Main.this)

.setMessage(

"您已经选择了取消按钮，该文件未被删除.")

.create().show();

}

}).create();

case DIALOG_SIMPLE_LIST:

return new AlertDialog.Builder(this).setTitle("选择省份").setItems(

provinces, new DialogInterface.OnClickListener()

{

public void onClick(DialogInterface dialog,

int which)

{

final AlertDialog ad = new AlertDialog.Builder(

Main.this).setMessage(

"您已经选择了: " + which + ":"

+ provinces[which]).show();

android.os.Handler hander = new android.os.Handler();

hander.postDelayed(new Runnable()

{

@Override

public void run()

{

ad.dismiss();

}

}, 5 * 1000);

}

}).create();

case DIALOG_SINGLE_CHOICE_LIST:

return new AlertDialog.Builder(this).setTitle("选择省份")

.setSingleChoiceItems(provinces, 1, buttonOnClick)

.setPositiveButton("确定", buttonOnClick)

.setNegativeButton("取消", buttonOnClick).create();

case DIALOG_MULTI_CHOICE_LIST:

AlertDialog ad = new AlertDialog.Builder(this).setIcon(

R.drawable.image).setTitle("选择省份").setMultiChoiceItems(

provinces, new boolean[]

{ false, true, false, true, false, false },

new DialogInterface.OnMultiChoiceClickListener()

{

public void onClick(DialogInterface dialog,

int whichButton, boolean isChecked)

{

}

}).setPositiveButton("确定",

new DialogInterface.OnClickListener()

{

public void onClick(DialogInterface dialog,

int whichButton)

{

int count = lv.getCount();

String s = "您选择了:";

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

{

if (lv.getCheckedItemPositions().get(i))

s += i + ":"

+ lv.getAdapter().getItem(i)

+ " ";

}

if (lv.getCheckedItemPositions().size() > 0)

{

new AlertDialog.Builder(Main.this)

.setMessage(s).show();

}

else

{

new AlertDialog.Builder(Main.this)

.setMessage("您未选择任何省份").show();

}

}

}).setNegativeButton("取消", null).create();

lv = ad.getListView();

return ad;

}

return null;

}

private class ButtonOnClick implements DialogInterface.OnClickListener

{

private int index;

public ButtonOnClick(int index)

{

this.index = index;

}

@Override

public void onClick(DialogInterface dialog, int whichButton)

{

if (whichButton >= 0)

{

index = whichButton;

}

else

{

if (whichButton == DialogInterface.BUTTON_POSITIVE)

{

new AlertDialog.Builder(Main.this).setMessage(

"您已经选择了： " + index + ":" + provinces[index]).show();

}

else if (whichButton == DialogInterface.BUTTON_NEGATIVE)

{

new AlertDialog.Builder(Main.this).setMessage("您什么都未选择.")

.show();

}

}

}

}

@Override

protected void onPrepareDialog(int id, Dialog dialog)

{

super.onPrepareDialog(id, dialog);

}

@Override

public void onCreate(Bundle savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

Button btnDeleteFile = (Button) findViewById(R.id.btnDeleteFile);

Button btnSimpleList = (Button) findViewById(R.id.btnSimpleList);

Button btnSingleChoiceList = (Button) findViewById(R.id.btnSingleChoiceList);

Button btnMultiChoiceList = (Button) findViewById(R.id.btnMultiChoiceList);

Button btnRemoveDialog = (Button)findViewById(R.id.btnRemoveDialog);

btnDeleteFile.setOnClickListener(this);

btnSimpleList.setOnClickListener(this);

btnSingleChoiceList.setOnClickListener(this);

btnMultiChoiceList.setOnClickListener(this);

btnRemoveDialog.setOnClickListener(this);

}

}