andorid 对话框

activity_ui2.xml

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

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

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:paddingBottom="@dimen/activity_vertical_margin"

    android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    tools:context="com.hanqi.application3.UIActivity2"

    android:orientation="vertical">

    <Button

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:text="长按触发上下文菜单"

        android:id="@+id/bt_changan"/>

    <ProgressBar

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:id="@+id/pb_1"/>

    <ProgressBar

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        style="?android:attr/progressBarStyleHorizontal"

        android:max="100"

        android:progress="50"

        android:secondaryProgress="70"

        android:id="@+id/pb_2"/>

    <!--progress  当前进度-->

    <!--

    <ProgressBar

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        style="@android:style/Widget.ProgressBar.Small"/>

    <ProgressBar

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        style="@android:style/Widget.ProgressBar.Large"/>

    <ProgressBar

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        style="@android:style/Widget.ProgressBar.Inverse"/>

    <ProgressBar

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        style="@android:style/Widget.ProgressBar.Large.Inverse"/>

-->

    <SeekBar

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:max="100"

        android:progress="20"

        android:secondaryProgress="40"

        android:id="@+id/sb_1"/>

    <!--<RatingBar

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:numStars="6"

        android:rating="3"

        android:isIndicator="true"/>

    numStars 设置几颗星

    isIndicator 是否不准修改-->

    <Button

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:text="点击触发弹出普通对话框"

        android:onClick="pt_onClick"

        />

    <Button

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:text="点击触发弹出单选对话框"

        android:onClick="dx_onClick"

        />

    <Button

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:text="点击触发弹出多选对话框"

        android:onClick="ddx_onClick"

        />

    <Button

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:text="点击触发弹出自定义对话框"

        android:onClick="zdy_onClick"

        />

    <Button

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:text="点击触发弹出进度条对话框"

        android:onClick="jdt_onClick"

        />

    <Button

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:text="点击触发弹出水平进度条对话框"

        android:onClick="jdt1_onClick"

        />

</LinearLayout>

activity_ui2.java

package com.hanqi.application3;

import android.app.Activity;

import android.app.AlertDialog;

import android.app.ProgressDialog;

import android.content.DialogInterface;

import android.os.Bundle;

import android.view.ContextMenu;

import android.view.Menu;

import android.view.MenuInflater;

import android.view.MenuItem;

import android.view.SubMenu;

import android.view.View;

import android.widget.Button;

import android.widget.EditText;

import android.widget.ProgressBar;

import android.widget.SeekBar;

import android.widget.Toast;

public class UIActivity2 extends Activity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_ui2);

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

        // 创建上下文菜单监听

        bt_changan.setOnCreateContextMenuListener(this);

        //bt_changan.setOnContextClickListener();创建监听

        //进度条

        //final

        final ProgressBar pb_1 = (ProgressBar)findViewById(R.id.pb_1);

        final ProgressBar pb_2 = (ProgressBar)findViewById(R.id.pb_2);

        SeekBar sb_1=(SeekBar)findViewById(R.id.sb_1);

        sb_1.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {

            @Override

            //进度被改变

            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {

                pb_2.setProgress(progress);

            }

            //开始拖动

            @Override

            public void onStartTrackingTouch(SeekBar seekBar) {

            }

            //结束拖动

            @Override

            public void onStopTrackingTouch(SeekBar seekBar) {

                pb_2.setProgress(seekBar.getProgress());

                if(seekBar.getProgress() == seekBar.getMax())

                {

                    //设置不可见INVISIBLE  占有空间，但是隐藏

                    //GONE 直接取消

                    pb_1.setVisibility(View.GONE);

                }

                else

                {

                    //可见VISIBLE

                    pb_1.setVisibility(View.VISIBLE);

                }

            }

        });

    }

    @Override

    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {

        menu.add(0, 1, 0, "添加");

        menu.add(0, 2, 1, "修改");

        menu.add(0, 3, 2, "删除");

        SubMenu m = menu.addSubMenu(0, 4, 3, "子菜单");

        m.add(0,41,0,"子菜单项1");

        m.add(0,42,0,"子菜单项2");

        m.add(0,43,0,"子菜单项3");

//        MenuInflater mi = getMenuInflater();

//        mi.inflate(R.menu.mymenu, menu);

        super.onCreateContextMenu(menu, v, menuInfo);

    }

    @Override

    public boolean onContextItemSelected(MenuItem item) {

        switch (item.getItemId())

        {

            case R.id.it2:

                Toast.makeText(UIActivity2.this, "触发了添加1功能", Toast.LENGTH_SHORT).show();

                break;

            case R.id.it1:

                Toast.makeText(UIActivity2.this, "触发了删除1功能", Toast.LENGTH_SHORT).show();

                break;

        }

        return super.onContextItemSelected(item);

    }

    @Override

    //重写  创建选项菜单的方法

    public boolean onCreateOptionsMenu(Menu menu) {

        //添加菜单项

        //纯编码模式

//        menu.add(0,1,0,"添加");

//        menu.add(0,2,2,"删除");

//        menu.add(0,3,1,"修改");

        //加载菜单文件模方式

        //1.获取一个菜单加载器

        MenuInflater mi = getMenuInflater();

        mi.inflate(R.menu.mymenu, menu);

        return super.onCreateOptionsMenu(menu);

    }

    @Override

    public boolean onOptionsItemSelected(MenuItem item) {

        //item.getTitle() 加载标题

        //Toast.makeText(UIActivity2.this, "选中的菜单项是"+item.getTitle(), Toast.LENGTH_SHORT).show();

        //根据菜单项的不同相应不同的功能

        //获取Item的id

        switch (item.getItemId())

        {

            case 1:

                Toast.makeText(UIActivity2.this, "触发了添加功能", Toast.LENGTH_SHORT).show();

                break;

            case 2:

                Toast.makeText(UIActivity2.this, "触发了删除功能", Toast.LENGTH_SHORT).show();

                break;

            case 3:

                Toast.makeText(UIActivity2.this, "触发了修改功能", Toast.LENGTH_SHORT).show();

                break;

            case R.id.it1:

                Toast.makeText(UIActivity2.this, "触发了添加1功能", Toast.LENGTH_SHORT).show();

                break;

            case R.id.it2:

                Toast.makeText(UIActivity2.this, "触发了删除1功能", Toast.LENGTH_SHORT).show();

                break;

        }

        return super.onOptionsItemSelected(item);

    }

    public void pt_onClick(View v)

    {

//        //构建一个普通对话框

//        //对话框的构建器

//        AlertDialog.Builder ab = new AlertDialog.Builder(this);

//        ab.setTitle("数据删除");

//        ab.setMessage("你确定要删除码？");

//        //负面按钮

//        ab.setNeutralButton("取消",null);

//        //正面按钮

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

//            @Override

//            public void onClick(DialogInterface dialog, int which) {

//                Toast.makeText(UIActivity2.this, "删除成功", Toast.LENGTH_SHORT).show();

//            }

//        });

//

//        ab.show();

        //方法连调用

        new AlertDialog.Builder(this)

                .setTitle("确认保存")

                .setMessage("你真的要保存吗？")

                .setNeutralButton("取消",null)

                .setPositiveButton("保存",null)

                .show();

    }

    public void dx_onClick(View v)

    {

        final String[] str_color={"红","绿","黄","蓝"};

        new AlertDialog.Builder(this)

                .setTitle("请选择颜色")

                .setSingleChoiceItems(str_color, 0, new DialogInterface.OnClickListener() {

                    @Override

                    public void onClick(DialogInterface dialog, int which) {

                        Toast.makeText(UIActivity2.this, "选中了"+str_color[which], Toast.LENGTH_SHORT).show();

                        //移除

                        //dialog.dismiss();

                    }

                })

                .setNeutralButton("确定",null)

                .show();

    }

    public void ddx_onClick(View v)

    {

        final String[] str_color={"红","绿","黄","蓝"};

        final boolean[] bl_xz = {true,false,false,true};

        new AlertDialog.Builder(this)

                .setTitle("请选择颜色")

                .setMultiChoiceItems(str_color, bl_xz, new DialogInterface.OnMultiChoiceClickListener() {

                    @Override

                    //是否选中isChecked

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

                        if (isChecked) {

                            Toast.makeText(UIActivity2.this, str_color + "被选中", Toast.LENGTH_SHORT).show();

                        } else {

                            Toast.makeText(UIActivity2.this, str_color + "取消选中", Toast.LENGTH_SHORT).show();

                        }

                    }

                })

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

                    @Override

                    public void onClick(DialogInterface dialog, int which) {

                        //遍历

                        for (boolean b : bl_xz) {

                            Toast.makeText(UIActivity2.this, "值= " + b, Toast.LENGTH_SHORT).show();

                        }

                    }

                })

                .show();

    }

    public void zdy_onClick(View v)

    {

        //1.获取加载器

       // LayoutInflater lif = getLayoutInflater();

        //2.用加载器加载文件

        //final View v_1 = lif.inflate(R.layout.loginlayout, null);

        new AlertDialog.Builder(this)

                .setView(R.layout.loginlayout)

                //.setView(v_1)

                .setNeutralButton("取消", null)

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

                    @Override

                    public void onClick(DialogInterface dialog, int which) {

                        AlertDialog al = (AlertDialog) dialog;

                        //处理数据

                        EditText et_username = (EditText) al.findViewById(R.id.et_username);

                        Toast.makeText(UIActivity2.this, "用户名=" + et_username.getText(), Toast.LENGTH_SHORT).show();

                    }

                })

                .show();

    }

    public void jdt_onClick(View v)

    {

        ProgressDialog pd = new  ProgressDialog(this);

            pd.setMessage("正在加载，请稍候...");

       //     pd.setTitle("进度对话框");

            pd.show();

        //创建Thread实例重写run(),start()启动多线程

        new Thread()

        {

            @Override

            public void run() {

                super.run();

                try {

            Thread.sleep(3000);

        }

        catch (Exception e)

        {

        }

            }

        }.start();

//        try {

//            Thread.sleep(2000);

//        }

//        catch (Exception e)

//        {

//

//        }

//

//

//        pd.dismiss();//关闭

        //多线程

    }

    public void jdt1_onClick(View v)

    {

        final ProgressDialog pd = new  ProgressDialog(this);

        pd.setMessage("正在加载...");

        pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);

        pd.show();

        //创建Thread实例重写run(),start()启动多线程

        new Thread()

        {

            @Override

            public void run() {

                super.run();

                for (int i = 0; i <= pd.getMax();i++)

                {

                try {

                    Thread.sleep(300);

                }

                catch (Exception e)

                {

                }

                    pd.setProgress(i);

                }

            }

        }.start();

    }

}