Android中五種常用對話框的使用

場景

Android中常用的五種對話框為

常規對話框、帶列表的對話框、自定義的對話框、帶進度條的對話框、帶日期選擇器的對話框。

注：

博客：
https://blog.csdn.net/badao_liumang_qizhi
關注公眾號
霸道的程序猿
獲取編程相關電子書、教程推送與免費下載。

實現

常規對話框

新建一個空項目，調整activity_main.xml的布局為LinearLayout,並添加一個Button,設置其點擊事件

    <Button
        android:id="@+id/button_normal_dialog"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="startNormalDialog"
        android:text="啟動常規對話框" />

然后在activity中實現其點擊方法

    /***
     * 啟動常規對話框
     * @param view
     */
    public void startNormalDialog(View view){
        new AlertDialog.Builder(this)
                .setIcon(R.drawable.ic_launcher_background)
                .setTitle("公眾號：霸道的程序猿")
                .setCancelable(false)
                .setMessage("是否刪除該條記錄")
                .setPositiveButton("是", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(MainActivity.this,"刪除記錄成功",Toast.LENGTH_LONG).show();
                    }
                })
                .setNegativeButton("否", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(MainActivity.this,"取消刪除記錄",Toast.LENGTH_LONG).show();
                    }
                })
                .show();
    }

運行項目查看效果

 

 

帶列表的對話框

在布局文件中添加一個按鈕

    <Button
        android:id="@+id/button2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="startListDialog"
        android:text="啟動帶列表的對話框" />

 

在activity中實現其點擊方法

 

    /**
     * 啟動帶列表的對話框
     * @param view
     */
    public void startListDialog(View view){
                final String[] items = {"關注","公眾號","霸道的程序猿","獲取","編程教程與資源"};
                new AlertDialog.Builder(this)
                        .setTitle("公眾號：霸道的程序猿")
                        .setCancelable(false)
                        .setSingleChoiceItems(items, 0, new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                Toast.makeText(MainActivity.this,items[which],Toast.LENGTH_LONG).show();
                            }
                        })
                        .setPositiveButton("OK",null)
                        .show(); 

}

 

運行之后查看效果

 

 

自定義視圖的對話框

在layout下新建layout資源文件dialog_view.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.appcompat.widget.LinearLayoutCompat
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation= "vertical">

    <EditText
        android:id="@+id/text_username"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:ems="10"
        android:hint="用戶名"
        android:inputType="textPersonName" />

    <EditText
        android:id="@+id/text_pwd"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:ems="10"
        android:hint="密碼"
        android:inputType="textPersonName" />
</androidx.appcompat.widget.LinearLayoutCompat>

 

然后在主布局文件中添加一個按鈕

    <Button
        android:id="@+id/button3"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="startCustomDialog"
        android:text="啟動自定義的對話框" />

 

在activity中實現其點擊方法

    /**
     * 啟動自定義的對話框
     * @param view
     */
    public void startCustomDialog(View view){
                View v = View.inflate(this,R.layout.dialog_view,null);
                final EditText user = v.findViewById(R.id.text_username);
                final EditText pwd = v.findViewById(R.id.text_pwd);

                new AlertDialog.Builder(this)
                        .setTitle("公眾號：霸道的程序猿")
                        .setCancelable(false)
                        .setView(v)
                        .setPositiveButton("登錄", new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                String username = user.getText().toString().trim();
                                String password = pwd.getText().toString().trim();
                                Toast.makeText(MainActivity.this,"用戶名:"+username+"密碼："+password,Toast.LENGTH_LONG).show();
                            }
                        })
                        .show();
    }

 

運行之后查看效果

 

 

帶進度條的對話框

在布局文件中添加按鈕

    <Button
        android:id="@+id/button4"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="startProgressDialog"
        android:text="啟動帶進度條的對話框" />

 

在activity中實現其點擊方法

    /**
     * 啟動帶進度條的對話框
     * @param view
     */
    public void startProgressDialog(View view){
        final ProgressDialog progressDialog = new ProgressDialog(this);
        progressDialog.setTitle("公眾號：霸道的程序猿");
        progressDialog.setCancelable(false);
        progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
        progressDialog.show();

        new Thread(new Runnable() {
            @Override
            public void run() {
               for(inti=1;i<=20;i++){
                    try {
                        Thread.sleep(200);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                    progressDialog.setProgress(progressDialog.getProgress()+5);
                }
                progressDialog.dismiss();
            }
        }).start();
    }

 

運行之后查看效果

 

 

帶日期選擇器的對話框

在布局文件中添加按鈕

    <Button
        android:id="@+id/button5"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="startDatePickDialog"
        android:text="啟動帶日期選擇器的對話框" />

 

在activity中實現其點擊方法

 

   /**
     * 啟動帶日期選擇器的對話框
     * @param view
     */
    public void startDatePickDialog(View view){
        Calendar calendar = Calendar.getInstance();
        int year = calendar.get(Calendar.YEAR);
        int month = calendar.get(Calendar.MONTH);
        int day = calendar.get(Calendar.DAY_OF_MONTH);

        new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener() {
            @Override
            public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {
                Toast.makeText(MainActivity.this,"選中了"+year+"年"+month+"月"+dayOfMonth+"日",Toast.LENGTH_LONG).show();
            }
        },year,month,day).show();
    }

 

運行之后查看效果

activity_main.xml完整代碼

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:orientation="vertical"
    tools:context=".MainActivity">

    <Button
        android:id="@+id/button_normal_dialog"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="startNormalDialog"
        android:text="啟動常規對話框" />

    <Button
        android:id="@+id/button2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="startListDialog"
        android:text="啟動帶列表的對話框" />


    <Button
        android:id="@+id/button3"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="startCustomDialog"
        android:text="啟動自定義的對話框" />


    <Button
        android:id="@+id/button4"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="startProgressDialog"
        android:text="啟動帶進度條的對話框" />


    <Button
        android:id="@+id/button5"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="startDatePickDialog"
        android:text="啟動帶日期選擇器的對話框" />
</LinearLayout>

 

MainActivity完整代碼

package com.badao.androidstudy;

import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;

import android.app.DatePickerDialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.Toast;

import java.util.Calendar;

public class MainActivity extends AppCompatActivity {

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

    /***
     * 啟動常規對話框
     * @param view
     */
    public void startNormalDialog(View view){
        new AlertDialog.Builder(this)
                .setIcon(R.drawable.ic_launcher_background)
                .setTitle("公眾號：霸道的程序猿")
                .setCancelable(false)
                .setMessage("是否刪除該條記錄")
                .setPositiveButton("是", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(MainActivity.this,"刪除記錄成功",Toast.LENGTH_LONG).show();
                    }
                })
                .setNegativeButton("否", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(MainActivity.this,"取消刪除記錄",Toast.LENGTH_LONG).show();
                    }
                })
                .show();
    }

    /**
     * 啟動帶列表的對話框
     * @param view
     */
    public void startListDialog(View view){
                final String[] items = {"關注","公眾號","霸道的程序猿","獲取","編程教程與資源"};
                new AlertDialog.Builder(this)
                        .setTitle("公眾號：霸道的程序猿")
                        .setCancelable(false)
                        .setSingleChoiceItems(items, 0, new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                Toast.makeText(MainActivity.this,items[which],Toast.LENGTH_LONG).show();
                            }
                        })
                        .setPositiveButton("OK",null)
                        .show();
    }

    /**
     * 啟動自定義的對話框
     * @param view
     */
    public void startCustomDialog(View view){
                View v = View.inflate(this,R.layout.dialog_view,null);
                final EditText user = v.findViewById(R.id.text_username);
                final EditText pwd = v.findViewById(R.id.text_pwd);

                new AlertDialog.Builder(this)
                        .setTitle("公眾號：霸道的程序猿")
                        .setCancelable(false)
                        .setView(v)
                        .setPositiveButton("登錄", new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                String username = user.getText().toString().trim();
                                String password = pwd.getText().toString().trim();
                                Toast.makeText(MainActivity.this,"用戶名:"+username+"密碼："+password,Toast.LENGTH_LONG).show();
                            }
                        })
                        .show();
    }


    /**
     * 啟動帶進度條的對話框
     * @param view
     */
    public void startProgressDialog(View view){
        final ProgressDialog progressDialog = new ProgressDialog(this);
        progressDialog.setTitle("公眾號：霸道的程序猿");
        progressDialog.setCancelable(false);
        progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
        progressDialog.show();

        new Thread(new Runnable() {
            @Override
            public void run() {
                for(int i=1;i<=20;i++){
                    try {
                        Thread.sleep(200);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                    progressDialog.setProgress(progressDialog.getProgress()+5);
                }
                progressDialog.dismiss();
            }
        }).start();
    }


    /**
     * 啟動帶日期選擇器的對話框
     * @param view
     */
    public void startDatePickDialog(View view){
        Calendar calendar = Calendar.getInstance();
        int year = calendar.get(Calendar.YEAR);
        int month = calendar.get(Calendar.MONTH);
        int day = calendar.get(Calendar.DAY_OF_MONTH);

        new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener() {
            @Override
            public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {
                Toast.makeText(MainActivity.this,"選中了"+year+"年"+month+"月"+dayOfMonth+"日",Toast.LENGTH_LONG).show();
            }
        },year,month,day).show();
    }

 

}