【Andriod-AlertDialog控件】 弹出对话框AlertDialog用法

Result:

Code:

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends Activity implements OnClickListener
{
    Button buttonSure, buttonRadio, buttonCheck, buttonList, buttonCustom;

    private String[] sexList =
    { "男", "女" };// 单选列表
    private String[] likeList =
    { "篮球", "足球", "打游戏", "听音乐", "看电影" };// 多选列表
    private String[] itemList =
    { "项目经理", "策划", "测试", "美工", "程序员" };// 列表

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        buttonSure = (Button) findViewById(R.id.buttonSure);
        buttonRadio = (Button) findViewById(R.id.buttonRadio);
        buttonCheck = (Button) findViewById(R.id.buttonCheck);
        buttonList = (Button) findViewById(R.id.buttonList);
        buttonCustom = (Button) findViewById(R.id.buttonCustom);

        buttonSure.setOnClickListener(this);
        buttonRadio.setOnClickListener(this);
        buttonCheck.setOnClickListener(this);
        buttonList.setOnClickListener(this);
        buttonCustom.setOnClickListener(this);
    }

    @Override
    public void onClick(View v)
    {
        switch (v.getId())
        {
        case R.id.button:

            break;
        case R.id.buttonSure:
            sureDialog();
            break;
        case R.id.buttonRadio:
            radioDialog();
            break;
        case R.id.buttonCheck:
            checkDailog();
            break;
        case R.id.buttonList:
            listDialog();
            break;
        case R.id.buttonCustom:
            customDialog();
            break;
        default:
            break;
        }
    }

    /**
     * 确认对话框
     */
    private void sureDialog()
    {
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("确认对话框");// 设置标题
        builder.setIcon(R.drawable.ic_launcher);// 设置图标
        builder.setMessage("确认对话框内容");// 设置内容
        /* 添加对话框中确定按钮和点击事件 */
        builder.setPositiveButton("确定", new DialogInterface.OnClickListener()
        {
            @Override
            public void onClick(DialogInterface arg0, int arg1)
            {
                Toast.makeText(MainActivity.this, "点击了确定按钮", Toast.LENGTH_SHORT).show();
            }
        });
        /* 添加对话框中取消按钮和点击事件 */
        builder.setNegativeButton("取消", new DialogInterface.OnClickListener()
        {
            @Override
            public void onClick(DialogInterface arg0, int arg1)
            {
                Toast.makeText(MainActivity.this, "你点击了取消按钮", Toast.LENGTH_SHORT).show();
            }
        });
        AlertDialog dialog = builder.create();// 获取dialog
        dialog.show();// 显示对话框
    }

    /**
     * 单选确认对话框
     */
    private void radioDialog()
    {
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("性别");// 设置标题
        builder.setIcon(R.drawable.ic_launcher);// 设置图标
        /* 参数一位单选列表文字，参数二为默认第几个选中（-1默认不选中），参数三是创建监听器 */
        builder.setSingleChoiceItems(sexList, -1, new DialogInterface.OnClickListener()
        {
            @Override
            public void onClick(DialogInterface dialog, int which)
            {
                String sex = sexList[which];
                Toast.makeText(MainActivity.this, "这个人性别为" + sex, Toast.LENGTH_SHORT).show();
            }
        });

        /* 添加对话框中取消按钮和点击事件 */
        builder.setNegativeButton("取消", new DialogInterface.OnClickListener()
        {
            @Override
            public void onClick(DialogInterface dialog, int which)
            {
                dialog.dismiss();// 关闭对话框
            }
        });
        AlertDialog dialog = builder.create();// 获取dialog
        dialog.show();// 显示对话框
    }

    /**
     * 多选对话框
     */
    private void checkDailog()
    {
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("爱好");// 设置标题
        builder.setIcon(R.drawable.ic_launcher);// 设置图标
        /* 参数同单选对话框一样，另外第二个参数默认不选中为null，而不是-1 */
        builder.setMultiChoiceItems(likeList, null, new DialogInterface.OnMultiChoiceClickListener()
        {
            @Override
            public void onClick(DialogInterface dialog, int which, boolean isChecked)
            {
                if (isChecked)
                {
                    Toast.makeText(MainActivity.this, "我喜欢" + likeList[which], Toast.LENGTH_SHORT).show();
                } else
                {
                    Toast.makeText(MainActivity.this, "我不喜欢" + likeList[which], Toast.LENGTH_SHORT).show();
                }
            }
        });
        /* 添加对话框中取消按钮点击事件 */
        builder.setNegativeButton("取消", new DialogInterface.OnClickListener()
        {
            @Override
            public void onClick(DialogInterface dialog, int which)
            {
                dialog.dismiss();// 关闭对话框
            }
        });
        AlertDialog dialog = builder.create();// 获取dialog
        dialog.show();// 显示对话框
    }

    /**
     * 列表对话框
     */
    private void listDialog()
    {
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("部门列表");// 设置标题
        builder.setIcon(R.drawable.ic_launcher);// 设置图标
        builder.setItems(itemList, new DialogInterface.OnClickListener()
        {
            @Override
            public void onClick(DialogInterface dialog, int which)
            {
                Toast.makeText(MainActivity.this, "我点击了" + itemList[which], Toast.LENGTH_SHORT).show();
            }
        });
        AlertDialog dialog = builder.create();// 获取dialog
        dialog.show();// 显示对话框
    }

    /**
     * 自定义对话框
     */
    private void customDialog()
    {
        LayoutInflater inflater = LayoutInflater.from(this);
        View view = inflater.inflate(R.layout.dialog, null);// 获取自定义布局
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("自定义对话框");// 设置标题
        builder.setIcon(R.drawable.ic_launcher);// 设置图标
        builder.setView(view);// 设置自定义样式布局到对话框
        AlertDialog dialog = builder.create();// 获取dialog
        dialog.show();// 显示对话框
    }

}