package com.sxt.day05_09;

import android.app.Activity;

import android.app.AlertDialog;

import android.content.DialogInterface;

import android.os.Bundle;

import android.util.Log;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.EditText;

import android.widget.Toast;

public class MainActivity extends Activity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        setListener();

    }

    private void setListener() {

        setStandardDialogClickListener();

        setItemsDialogClickListener();

        setCustomDialogClickListener();

    }

    //自定义对话框

    private void setCustomDialogClickListener() {

        findViewById(R.id.btnCustomDialog).setOnClickListener(new OnClickListener() {

            @Override

            public void onClick(View v) {

                //将custom_dialog.xml解析为一个View类型的java对象

                View layout = View.inflate(MainActivity.this, R.layout.custom_dialog, null);

                final EditText etAddrss=(EditText) layout.findViewById(R.id.etAddress);

                AlertDialog.Builder builder=new AlertDialog.Builder(MainActivity.this);//Builder是内部类

                builder.setTitle("输入地址的对话框")//setTitle()返回builder对象(builder对象的地址)，所以可以继续用点调用其他方法，

                    .setView(layout)//添加自定义布局，替换掉setMessage()

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

                        @Override

                        public void onClick(DialogInterface dialog, int which) {

                            String address=etAddrss.getText().toString();//内部类调用外部的方法的变量要是final类型

                            Log.i("main",address);

                        }

                    });

                AlertDialog dialog = builder.create();//create最终创建对话框

                dialog.show();//显示出来

            }

        });

    }

    //列表类型的对话框

    private void setItemsDialogClickListener() {

        findViewById(R.id.btnItemsDialog).setOnClickListener(new OnClickListener() {

            @Override

            public void onClick(View v) {

                //真正创建对话框不是AlertDialog，而是这个类的内部类Builder，

                AlertDialog.Builder builder=new AlertDialog.Builder(MainActivity.this);

                builder.setItems(new String[]{"增加数据","删除数据","修改数据"}, new DialogInterface.OnClickListener() {

                    @Override

                    public void onClick(DialogInterface dialog, int which) {//dialog是当前操作的AlertDialog对象，

                        switch (which) {

                        case 0:

                            Toast.makeText(MainActivity.this, "执行增加数据的操作", 3000).show();

                            break;

                        case 1:

                            Toast.makeText(MainActivity.this, "执行删除数据的操作", 3000).show();

                            break;

                        case 2:

                            Toast.makeText(MainActivity.this, "执行修改数据的操作", 3000).show();

                            break;

                        }

                    }

                });

                AlertDialog dialog = builder.create();

                dialog.show();

            }

        });

    }

    //标准对话框

    private void setStandardDialogClickListener() {

        findViewById(R.id.btnStandardDialog).setOnClickListener(new OnClickListener() {

            @Override

            public void onClick(View v) {

                //创建对话框的Builder对象，Builder是AlertDialog的内部类

                AlertDialog.Builder builder=new AlertDialog.Builder(MainActivity.this);

                builder.setTitle("退出考试窗口")

                    .setMessage("退出考试吗？")

                    .setPositiveButton("确定", new DialogInterface.OnClickListener() {//setPositiveButton创建肯定的按钮，按钮文本是"确定"，点击按钮的监听器是DialogInterface.OnClickListener

                        //OnClickListener是DialogInterface的内部接口，

                        @Override

                        public void onClick(DialogInterface dialog, int which) {

                            Log.i("main","退出考试");

                        }

                    }).setNegativeButton("放弃", new DialogInterface.OnClickListener() {////setNegativeButton创建否定的按钮，按钮的文本和监听器

                        //如果不添加监听器，则仅仅关闭对话框没有动作。

                        @Override

                        public void onClick(DialogInterface dialog, int which) {

                            Log.i("main","继续考试");

                        }

                    });

                AlertDialog dialog = builder.create();//create最终创建对话框

                dialog.show();//显示出来

            }

        });

    }

}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical">

    <Button

        android:id="@+id/btnStandardDialog"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:text="标准对话框" />

    <Button

        android:id="@+id/btnItemsDialog"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:text="列表对话框" />

    <Button

        android:id="@+id/btnCustomDialog"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:text="自定义对话框" />

</LinearLayout>

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

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="horizontal" >

    <TextView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="输入地址"/>

    <EditText

        android:id="@+id/etAddress"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"/>

</LinearLayout>