[移动开发] Day18-基于Android的AlertDialog、ProgressDialog、DatePickerDialog实例

开发: C++知识库 Java知识库 JavaScript Python PHP知识库人工智能区块链大数据移动开发嵌入式开发工具数据结构与算法开发测试游戏开发网络协议系统运维
教程: HTML教程 CSS教程 JavaScript教程 Go语言教程 JQuery教程 VUE教程 VUE3教程 Bootstrap教程 SQL数据库教程 C语言教程 C++教程 Java教程 Python教程 Python3教程 C#教程
数码: 电脑笔记本显卡显示器固态硬盘硬盘耳机手机 iphone vivo oppo 小米华为单反装机图拉丁

-> 移动开发 -> Day18-基于Android的AlertDialog、ProgressDialog、DatePickerDialog实例 -> 正文阅读

[移动开发]Day18-基于Android的AlertDialog、ProgressDialog、DatePickerDialog实例

文章目录

题目

请创建一个模块，设计多个页面，分别用到AlertDialog、ProgressDialog、DatePickerDialog等对话框， 能够用到动态管理的碎片Fragment。

效果图

在这里插入图片描述

一、开发主页面MainActivity

1.编写主页布局activity_main.xml

<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:orientation="vertical"
    android:background="@drawable/img"
    tools:context=".MainActivity" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="120dip"
        android:gravity="center_vertical|center_horizontal"
        android:orientation="vertical">
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:text="综合应用案例"
            android:gravity="center"
            android:textColor="#00ff99"
            android:textSize="40sp" />
    </LinearLayout>

    <Button
        android:id="@+id/button1"
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:background="#00ff00"
        android:text="AlertDialog" />

    <Button
        android:id="@+id/button2"
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:text="DatePickerDialog" />


</LinearLayout>

2.编写主页MainActivity.java

package com.example.week6homework;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {

    private Button button1;
    private Button button2;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        button1 = this.findViewById(R.id.button1);
        button2 = this.findViewById(R.id.button2);

        button1.getBackground().setAlpha(100);
        button2.getBackground().setAlpha(100);

        //为button1绑定跳转时间
        button1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent = new Intent(MainActivity.this,AlertDialogand.class);
                startActivity(intent);
            }
        });
        button2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent = new Intent(MainActivity.this,DatePickerDialog.class);
                startActivity(intent);
            }
        });
    }
}

二、开发AlertDialog页面

1.编写activity_alert_dialog.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/img"
    tools:context=".AlertDialogand">

  <LinearLayout
      android:layout_width="match_parent"
      android:layout_height="120dip"
      android:gravity="center_vertical|center_horizontal"
      android:orientation="vertical"
      tools:ignore="MissingConstraints">
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:text="AlertDialog案例"
        android:gravity="center"
        android:textColor="#00ff99"
        android:textSize="40sp" />
  </LinearLayout>

  <Button
      android:id="@+id/button1"
      android:layout_width="match_parent"
      android:layout_height="100dp"
      android:background="#00ff00"
      android:text="AlertDialog"
      app:layout_constraintBottom_toTopOf="@+id/button2"
      app:layout_constraintEnd_toEndOf="parent"
      app:layout_constraintHorizontal_bias="0.0"
      app:layout_constraintStart_toStartOf="parent"
      tools:ignore="MissingConstraints" />

  <Button
      android:id="@+id/button2"
      android:layout_width="match_parent"
      android:layout_height="100dp"
      android:text="列表对话框"
      app:layout_constraintBottom_toTopOf="@+id/button3"
      app:layout_constraintEnd_toEndOf="parent"
      app:layout_constraintHorizontal_bias="0.0"
      app:layout_constraintStart_toStartOf="parent"
      tools:ignore="MissingConstraints" />

  <Button
      android:id="@+id/button3"
      android:layout_width="match_parent"
      android:layout_height="100dp"
      android:layout_marginBottom="144dp"
      android:text="进度条对话框"
      app:layout_constraintBottom_toBottomOf="parent"
      app:layout_constraintEnd_toEndOf="parent"
      app:layout_constraintHorizontal_bias="0.0"
      app:layout_constraintStart_toStartOf="parent"
      tools:ignore="MissingConstraints" />

</androidx.constraintlayout.widget.ConstraintLayout>

2.编写AlertDialog.java

package com.example.week6homework;


import java.util.Timer;
import java.util.TimerTask;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;

public class AlertDialogand extends AppCompatActivity {
    Button alert,list,progress;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_alert_dialog);
        alert = (Button)findViewById(R.id.button1);
        list = (Button)findViewById(R.id.button2);
        progress = (Button)findViewById(R.id.button3);

        alert.getBackground().setAlpha(100);
        list.getBackground().setAlpha(100);
        progress.getBackground().setAlpha(100);
        //绑定事件
        alert.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                createAlertDialog().show();
            }

        });
        list.setOnClickListener(new View.OnClickListener(){

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
//                createListDialog().show();
                createListDialog().show();
            }

        });
        progress.setOnClickListener(new View.OnClickListener(){

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                createProgressDialog().show();
            }

        });

    }

    /**
     * 生成信息交互对话框！
     * @return
     */
    private AlertDialog createAlertDialog(){
        AlertDialog dialog = new AlertDialog.Builder(this)
                .setIcon(R.drawable.img)//设置标题的图片
                .setTitle("提示")//设置对话框的标题
                .setMessage("点击确定返回主页")//设置对话框的内容
                //设置对话框的按钮
                .setNegativeButton("取消", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();
                    }
                })
                .setPositiveButton("确定", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();
                        AlertDialogand.this.finish();
                    }
                }).create();
        return dialog;
    }

    private AlertDialog createListDialog(){
        final String items[] = {"吃饭", "睡觉", "打豆豆", "摆烂"};
        AlertDialog dialog = new AlertDialog.Builder(this)
                .setIcon(R.drawable.img)//设置标题的图片
                .setTitle("选择您的兴趣爱好：")//设置对话框的标题
                .setSingleChoiceItems(items,-1, new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(AlertDialogand.this, "您的选择："+items[which], Toast.LENGTH_SHORT).show();
                        dialog.dismiss();
                    }
                })
                .setPositiveButton("确定", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();
                    }
                }).create();
        return dialog;

    }

    private ProgressDialog createProgressDialog(){
        final ProgressDialog dialog = new ProgressDialog(this);
        dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
        dialog.setMessage("正在加载中");
        dialog.setMax(100);
        final Timer timer = new Timer();
        timer.schedule(new TimerTask() {
            int currentProgress = 0;

            @Override
            public void run() {
                currentProgress+=10;
                dialog.setProgress(currentProgress);
                if (currentProgress>=100) {
                    timer.cancel();
                    dialog.dismiss();
                }
            }
        }, 0, 1000);
        return dialog;
    }
}

三、开发DatePickerDialog页面

1.编写activity_date_picker_dialog.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/img"
    tools:context=".DatePickerDialog">

    <LinearLayout
        android:id="@+id/linearLayout2"
        android:layout_width="match_parent"
        android:layout_height="120dip"
        android:gravity="center_vertical|center_horizontal"
        android:orientation="vertical"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        tools:layout_editor_absoluteY="0dp">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:gravity="center_horizontal"
            android:text="DatePicker应用案例"
            android:textColor="#00ff99"
            android:textSize="40dp" />

    </LinearLayout>

    <TextView
        android:id="@+id/c57DataTimeTV"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="5dp"
        android:text=""
        android:textSize="18sp" />

    <ScrollView
        android:id="@+id/c57scrollView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical" >

        </LinearLayout>
    </ScrollView>

    <DatePicker
        android:id="@+id/c57datePicker1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#ffff"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/linearLayout2"
        tools:layout_editor_absoluteX="0dp" />
</androidx.constraintlayout.widget.ConstraintLayout>

2. 编写DatePickerDialog.java

package com.example.week6homework;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;

public class DatePickerDialog extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);
    }
}