列表Dialog和“确认”、“取消”Dialog

1.String数组资源文件cities.xml：

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <string-array name="cities">
        <item>丰台区</item>

　　                <item>石景山区</item>

　　                <item>海淀区</item>

　　                <item>漳州市</item>

　　                <item>朝阳区</item>
    </string-array>

</resources>

2.Activity类：

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button button1 = (Button) findViewById(R.id.button1);
        button1.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                AlertDialog.Builder alertBuilder = new AlertDialog.Builder(MainActivity.this);
                AlertDialog dialog = null;
                alertBuilder.setTitle("这是标题").setMessage("这是消息")
                        .setPositiveButton("确定", new DialogInterface.OnClickListener() {

                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                Toast.makeText(MainActivity.this, "您单击了确定", Toast.LENGTH_LONG).show();
                            }
                        }).setNegativeButton("取消", new DialogInterface.OnClickListener() {

                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                Toast.makeText(MainActivity.this, "您单击了取消", Toast.LENGTH_LONG).show();
                            }
                        });
                //使用AlertDialog.Builder创建AlertDialog
                dialog = alertBuilder.create();
                dialog.show();

            }
        });
        Button button2 = (Button) findViewById(R.id.button2);
        button2.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                AlertDialog.Builder alertBuilder = new AlertDialog.Builder(MainActivity.this);
                AlertDialog dialog = null;
                //获取数组信息
                final String cities[] = getResources().getStringArray(R.array.cities);
                alertBuilder.setTitle("请选择城市").setSingleChoiceItems(R.array.cities, 0,
                        new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                Toast.makeText(MainActivity.this, "您选择的是:=" + cities[which],
                                        Toast.LENGTH_LONG).show();
                                // 消除对话框
                                dialog.dismiss();
                            }
                        });
                dialog = alertBuilder.create();
                dialog.show();
            }
        });
    }

}