目录 前言 概览 Bmob后端云介绍 Bmob后端云与Android Studio配置 一、Bmob后端云 二、Android Studio配置 工具类 一、User类 二、Suit类 三、Code类 实现类 一、登录代码 二、注册
目录
本项目尚在开发阶段，主要针对的是安卓用户，通过查阅开发文档以及借鉴其他博主，由于是个人开发，可能会在逻辑会有所缺漏，欢迎各位安卓使用者与开发者进行内测并提交反馈意见给我，进行探讨顺便带带我；
本项目开发主题尚未决定，故本期向各位征集意见，可以通过安装该app进行注册登录，并写下您的想法提交反馈给我，后续将对收集的idea进行整合并决定方向，进行下一步的开发。
ps:保证无病毒与无信息泄露！！！欢迎大家参与
源代码：
链接：https://pan.baidu.com/s/10ECb54ne_9bubuCLWLB-Kw?pwd=v2sh
提取码：v2sh
安卓手机软件安装包：
链接：Https://pan.baidu.com/s/1a2H5CKxKvtAjvnyOHvybUQ?pwd=np3w
提取码：np3w
本期主要用到两个工具，Android Studio和Bmob后端云（后续介绍），在安卓客户端注册登陆并提交想法，最终在Bmob后端云中实现数据可视化，主要实现效果如下图所示
Android Studio在此不做介绍了，以下是对Bmob后端云的介绍
本次采用Bmob后端云（Bmob后端云 (bmobapp.com)）主要是其集成了数据库与服务器，对于很多Android/iOS/wp个人移动开发者来说，开发一个具有网络功能的应用不是一件容易的事，不仅需要购买/租赁服务器，还必须掌握一门诸如Java/.net/PHP这类的服务器开发语言，每开发一款移动应用程序，就必须开发维护对应的服务器程序，鉴于此我目前水平有限，故先采用Bmob后端云进行开发，给应用软件快速添加一个安全灵活的后台管理系统，方便浏览终端保存的各种信息。
1、添加网络权限
在上图位置添加下方代码以添加网络权限
2、连接Bmob
在上图位置添加下方代码，并将蓝色方框中的代码替换成红色箭头所指的自己代码的包名
Bmob.initialize(this,"你的应用ID");
implementation 'io.GitHub.bmob:android-sdk:3.9.4'implementation 'io.Reactivex.rxjava2:rxjava:2.2.8'implementation 'io.reactivex.rxjava2:rxandroid:2.1.1'implementation 'com.squareup.okhttp3:okhttp:4.8.1'implementation 'com.squareup.okio:okio:2.2.2'implementation 'com.Google.code.gson:gson:2.8.5'至此，配置已全部完成，接下来是进行界面设计与逻辑代码编写环节
这个工具类的名称与前边在Bmob创建的表单名称相同，这个类继承于BmobObject，其属性相当于在表中的数据。
package com.example.application.tool;import java.io.Serializable;import cn.bmob.v3.BmobObject;public class User extends BmobObject implements Serializable { private String Acctount;//手机账户 private String PassWord;//密码 private String Context;//反馈内容 public String getAcctount() { return Acctount; } public void setAcctount(String acctount) { Acctount = acctount; } public String getPassword() { return Password; } public void setPassword(String password) { Password = password; } public String getContext() { return Context; } public void setContext(String context) { Context = context; }}这个类主要是号码检测（是否符合格式）与密码检测（至少包含3个字母）
package com.example.application.tool;import java.util.regex.Matcher;import java.util.regex.Pattern;public class Suit { //手机号码检测 public static boolean PhoneSuit(String phone){ String ChineseMainland = "^((13[0-9])|(14[5,7,9])|(15[0-3,5-9])|(166)|(17[3,5,6,7,8])" + "|(18[0-9])|(19[8,9]))\\d{8}$"; String HongKong = "^(5|6|8|9)\\d{7}$"; Matcher C = Pattern.compile(ChineseMainland).matcher(phone); Matcher H = Pattern.compile(HongKong).matcher(phone); return C.matches() || H.matches(); } //密码检测（最少3个字母） public static boolean PasswordSuit(String password){ char[] s = password.toCharArray(); int count = 0 ; //检测所有的密码中有多少个字母 for (int i = 0;i < s.length;i++){ if ((s[i] >= 'a' && s[i] <= 'z') || (s[i] >= 'A' && s[i] <= 'Z')){ count++; } } if (count >= 3){ return true; }else { return false; } }}这个类主要是生成验证码图片，由于目前短信验证在资源上有数量限制，故采用验证码图片进行验证，在实现类中通过创建类对象调用类方法实现对验证码图片的生成。
package com.example.application.tool;import android.graphics.Bitmap;import android.graphics.canvas;import android.graphics.Color;import android.graphics.Paint;import java.util.Random;public class Code { //随机数数组 private static final char[] CHARS = { '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'j', 'k', 'm', 'n', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z' }; private static Code bmpCode; public static Code getInstance() { if(bmpCode == null) bmpCode = new Code(); return bmpCode; } //default settings //验证码默认随机数的个数 private static final int DEFAULT_CODE_LENGTH = 4; //默认字体大小 private static final int DEFAULT_FONT_SIZE = 25; //默认线条的条数 private static final int DEFAULT_LINE_NUMBER = 5; //padding值 private static final int BASE_PADDING_LEFT = 10, RANGE_PADDING_LEFT = 15, BASE_PADDING_TOP = 15, RANGE_PADDING_TOP = 20; //验证码的默认宽高 private static final int DEFAULT_WIDTH = 100, DEFAULT_HEIGHT = 40; //settings decided by the layout xml //canvas width and height private int width = DEFAULT_WIDTH, height = DEFAULT_HEIGHT; //random word space and pading_top private int base_padding_left = BASE_PADDING_LEFT, range_padding_left = RANGE_PADDING_LEFT, base_padding_top = BASE_PADDING_TOP, range_padding_top = RANGE_PADDING_TOP; //number of chars, lines; font size private int codeLength = DEFAULT_CODE_LENGTH, line_number = DEFAULT_LINE_NUMBER, font_size = DEFAULT_FONT_SIZE; //variables private String code; private int padding_left, padding_top; private Random random = new Random(); //验证码图片 public Bitmap createBitmap() { padding_left = 0; Bitmap bp = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); Canvas c = new Canvas(bp); code = createCode(); c.drawColor(Color.WHITE); Paint paint = new Paint(); paint.setAntiAlias(true); paint.setTextSize(font_size); //画验证码 for (int i = 0; i < code.length(); i++) { randomTextStyle(paint); randomPadding(); c.drawText(code.charAt(i) + "", padding_left, padding_top, paint); } //画线条 for (int i = 0; i < line_number; i++) { drawLine(c, paint); } //c.save(Canvas.ALL_SAVE_FLAG);//保存 c.save(); c.restore(); return bp; } public String getCode() { return code; } //生成验证码 private String createCode() { StringBuilder buffer = new StringBuilder(); for (int i = 0; i < codeLength; i++) { buffer.append(CHARS[random.nextInt(CHARS.length)]); } return buffer.toString(); } //画干扰线 private void drawLine(Canvas canvas, Paint paint) { int color = randomColor(); int startX = random.nextInt(width); int startY = random.nextInt(height); int stopX = random.nextInt(width); int stopY = random.nextInt(height); paint.setStrokeWidth(1); paint.setColor(color); canvas.drawLine(startX, startY, stopX, stopY, paint); } //生成随机颜色 private int randomColor() { return randomColor(1); } private int randomColor(int rate) { int red = random.nextInt(256) / rate; int green = random.nextInt(256) / rate; int blue = random.nextInt(256) / rate; return Color.rgb(red, green, blue); } //随机生成文字样式，颜色，粗细，倾斜度 private void randomTextStyle(Paint paint) { int color = randomColor(); paint.setColor(color); paint.setFakeBoldText(random.nextBoolean()); //true为粗体，false为非粗体 float skewX = random.nextInt(11) / 10; skewX = random.nextBoolean() ? skewX : -skewX; paint.setTextSkewX(skewX); //float类型参数，负数表示右斜，整数左斜 } //随机生成padding值 private void randomPadding() { padding_left += base_padding_left + random.nextInt(range_padding_left); padding_top = base_padding_top + random.nextInt(range_padding_top); }}
package com.example.application.activity;import androidx.appcompat.app.AppCompatActivity;import android.content.Intent;import android.os.Bundle;import android.text.TextUtils;import android.view.View;import android.widget.EditText;import android.widget.TextView;import android.widget.Toast;import com.example.application.R;import com.example.application.tool.User;import java.util.List;import cn.bmob.v3.Bmob;import cn.bmob.v3.BmobQuery;import cn.bmob.v3.exception.BmobException;import cn.bmob.v3.listener.FindListener;public class MainActivity extends AppCompatActivity implements View.OnClickListener { private EditText login_phone;//输入收集号码 private EditText login_password;//输入密码 private TextView login;//登陆按钮 private TextView login_lose;//忘记密码 private TextView login_resGISter;//注册账号 private String phone; private String password; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Bmob.initialize(this,"ebb1d24c01600c55b1e8be7f2625d7a7"); initView(); } //初始化控件 private void initView() { login_phone = findViewById(R.id.Login_Phone); login_password = findViewById(R.id.Login_Password); login = findViewById(R.id.Login); login_lose = findViewById(R.id.Login_Lose); login_resgister = findViewById(R.id.Login_Resgister); //启动监听事件 login.setOnClickListener(this); login_lose.setOnClickListener(this); login_resgister.setOnClickListener(this); } //点击事件 @Override public void onClick(View view) { //添加意图，切换画面 Intent intent = new Intent(); //选择监听按钮触发机制 switch (view.getId()){ case R.id.Login: Getdata(); //没有输入号码、密码判断为空则弹窗提示 if (TextUtils.isEmpty(phone)){ Toast.makeText(this,"请输入手机号码",Toast.LENGTH_SHORT).show(); } else if (TextUtils.isEmpty(password)) { Toast.makeText(this,"请输入密码",Toast.LENGTH_SHORT).show(); } else { BmobQuery bmobQuery = new BmobQuery<>(); bmobQuery.findObjects(new FindListener() { @Override public void done(List object, BmobException e) {//如果没有异常的话进行查询列表账号if(e == null){ int count = 0;//计数 //遍历 for (User user : object) { //查询到与客户端输入的账号一致 if (user.getAcctount().equals(phone)){ //查询到与客户端输入的密码一致 if (user.getPassword().equals(password)){ intent.setClass(getApplicationContext(),First_interface.class); //传递对象，方便主界面获取到用户信息 intent.putExtra("User",user); startActivity(intent); Toast.makeText(getApplicationContext(),"登陆成功",Toast.LENGTH_SHORT).show(); break; }else { Toast.makeText(getApplicationContext(),"密码错误",Toast.LENGTH_SHORT).show(); } } count++; } //遍历没有查询到，此时count++到object的数量 if (count >= object.size()){ Toast.makeText(getApplicationContext(),"账号不存在",Toast.LENGTH_SHORT).show(); }} else { Toast.makeText(getApplicationContext(),"账号不存在",Toast.LENGTH_SHORT).show();} } }); } break; case R.id.Login_Lose: intent.setClass(getApplicationContext(),Findpassword.class); startActivity(intent); break; case R.id.Login_Resgister: intent.setClass(getApplicationContext(),Resgister.class); startActivity(intent); break; } } //获取输入的号码与密码 public void Getdata(){ phone = login_phone.getText().toString().trim(); password = login_password.getText().toString().trim(); }} 
package com.example.application.activity;import androidx.appcompat.app.AppCompatActivity;import android.os.Bundle;import android.text.TextUtils;import android.util.Log;import android.view.View;import android.widget.EditText;import android.widget.ImageView;import android.widget.TextView;import android.widget.Toast;import com.example.application.R;import com.example.application.tool.Code;import com.example.application.tool.Suit;import com.example.application.tool.User;import java.util.List;import cn.bmob.v3.Bmob;import cn.bmob.v3.BmobQuery;import cn.bmob.v3.exception.BmobException;import cn.bmob.v3.listener.FindListener;import cn.bmob.v3.listener.SaveListener;public class Resgister extends AppCompatActivity implements View.OnClickListener { private static final String TAG = null; private EditText register_phone;//获取注册的手机号码 private EditText register_password;//获取注册的密码 private EditText register_sms;//输入验证码 private TextView register;//注册 private TextView login_back;//返回登陆 private ImageView register_paint;//获取验证码 private String phone;//客户端输入的手机号码 private String passeword;//客户端输入的密码 private String sms;//客户端输入的验证码 private String realCode;//图形验证码 @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_resgister); Bmob.initialize(this,"ebb1d24c01600c55b1e8be7f2625d7a7"); initView(); } //初始化控件 private void initView() { //获取控件变量 register_phone = findViewById(R.id.Register_Phone); register_password = findViewById(R.id.Register_Password); register_sms = findViewById(R.id.Register_SMS); register = findViewById(R.id.Register); login_back = findViewById(R.id.Login_Back); register_paint = findViewById(R.id.Register_Paint); //启动监听机制 //将验证码用图片的形式显示出来 register_paint.setImageBitmap(Code.getInstance().createBitmap()); realCode = Code.getInstance().getCode().toLowerCase(); register_paint.setOnClickListener(this); register.setOnClickListener(this); login_back.setOnClickListener(this); } //获取数据 public void Getdata(){ phone = register_phone.getText().toString().trim(); passeword = register_password.getText().toString().trim(); sms = register_sms.getText().toString().toLowerCase(); } @Override public void onClick(View view) { switch (view.getId()){ case R.id.Register_Paint: register_paint.setImageBitmap(Code.getInstance().createBitmap()); realCode = Code.getInstance().getCode().toLowerCase(); Log.v(TAG,"realCode"+realCode); break; case R.id.Login_Back: finish(); break; case R.id.Register: Getdata(); //输入限制条件：不能为空、号码以及密码符合格式、密码数量限制条件：6到16 if (TextUtils.isEmpty(phone)){ Toast.makeText(getApplicationContext(),"请输入手机号码",Toast.LENGTH_SHORT).show(); } else if (TextUtils.isEmpty(passeword)) { Toast.makeText(getApplicationContext(),"请输入密码",Toast.LENGTH_SHORT).show(); } else if (TextUtils.isEmpty(sms)) { Toast.makeText(getApplicationContext(),"请输入验证码",Toast.LENGTH_SHORT).show(); } else if (Suit.PhoneSuit(phone.trim()) != true) { Toast.makeText(getApplicationContext(),"请输入正确的手机号码",Toast.LENGTH_SHORT).show(); } else if (Suit.PasswordSuit(passeword.trim()) != true) { Toast.makeText(getApplicationContext(),"密码最少包含3个字母",Toast.LENGTH_SHORT).show(); } else if (passeword.length() < 6) { Toast.makeText(getApplicationContext(),"密码不得少于6位数",Toast.LENGTH_SHORT).show(); } else if (passeword.length() > 16) { Toast.makeText(getApplicationContext(),"密码不得多于16位数",Toast.LENGTH_SHORT).show(); }else { BmobQuery bmobQuery = new BmobQuery<>(); bmobQuery.findObjects(new FindListener() { @Override public void done(List object, BmobException e) {if (e == null){ int count = 0;//判断是否查询到尾--遍历 //查询判断用户是否已经存在 for (User user : object){ if (user.getAcctount().equals(phone)){ register_phone.setText(""); Toast.makeText(getApplicationContext(),"该用户已经注册过",Toast.LENGTH_SHORT).show(); finish(); break; } count++; } //查询到尾没有 if (count == object.size()){ //判断验证码是否正确 if (sms.equals(realCode)) { Toast.makeText(getApplicationContext(), "验证码正确", Toast.LENGTH_SHORT).show(); //将用户信息存入bmob云端 final User user = new User(); user.setAcctount(phone); user.setPassword(passeword); user.save(new SaveListener() { @Override public void done(String s, BmobException e) { if (e == null){ Toast.makeText(getApplicationContext(),"注册成功",Toast.LENGTH_SHORT).show(); finish(); }else { Toast.makeText(getApplicationContext(),"注册失败",Toast.LENGTH_SHORT).show(); } } }); } else { register_sms.setText(""); Toast.makeText(getApplicationContext(), "验证码错误", Toast.LENGTH_SHORT).show(); } }}else { Toast.makeText(Resgister.this, "该用户不存在", Toast.LENGTH_SHORT).show();} } }); } break; } }} 
package com.example.application.activity;import androidx.appcompat.app.AppCompatActivity;import android.content.Intent;import android.os.Bundle;import android.text.TextUtils;import android.util.Log;import android.view.View;import android.widget.EditText;import android.widget.ImageView;import android.widget.TextView;import android.widget.Toast;import com.example.application.R;import com.example.application.tool.Code;import com.example.application.tool.Suit;import com.example.application.tool.User;import java.util.List;import cn.bmob.v3.Bmob;import cn.bmob.v3.BmobQuery;import cn.bmob.v3.exception.BmobException;import cn.bmob.v3.listener.FindListener;import cn.bmob.v3.listener.UpdateListener;public class Findpassword extends AppCompatActivity implements View.OnClickListener { private static final String TAG = null; private EditText find_phone;//手机号码 private EditText find_sms;//验证码 private EditText find_password;//重设密码 private ImageView find_image;//验证码图片 private TextView findword;//完成 private TextView login_go;//去登陆 private String realCode; private String phone; private String sms; private String password; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_findpassword); Bmob.initialize(this,"ebb1d24c01600c55b1e8be7f2625d7a7"); initView(); } //初始化控件 private void initView() { //控件变量 find_phone = findViewById(R.id.Find_Phone); find_sms = findViewById(R.id.Find_SMS); find_password = findViewById(R.id.Find_Password); find_image = findViewById(R.id.Find_Image); findword = findViewById(R.id.Findword); login_go = findViewById(R.id.Login_Go); //监听机制 find_image.setImageBitmap(Code.getInstance().createBitmap()); realCode = Code.getInstance().getCode().toLowerCase(); find_image.setOnClickListener(this); findword.setOnClickListener(this); login_go.setOnClickListener(this); } @Override public void onClick(View view) { Intent intent = new Intent(); switch (view.getId()){ case R.id.Find_Image: find_image.setImageBitmap(Code.getInstance().createBitmap()); realCode = Code.getInstance().getCode().toLowerCase(); Log.v(TAG,"realCode"+realCode); break; case R.id.Findword: Getdata(); //判断不能为空 if (TextUtils.isEmpty(phone)){ Toast.makeText(getApplicationContext(),"请输入手机号码",Toast.LENGTH_SHORT).show(); } else if (TextUtils.isEmpty(password)) { Toast.makeText(getApplicationContext(),"请输入密码",Toast.LENGTH_SHORT).show(); } else if (TextUtils.isEmpty(sms)) { Toast.makeText(getApplicationContext(),"请输入验证码",Toast.LENGTH_SHORT).show(); } else if (Suit.PhoneSuit(phone.trim()) != true) { Toast.makeText(getApplicationContext(),"请输入正确的手机号码",Toast.LENGTH_SHORT).show(); } else if (Suit.PasswordSuit(password.trim()) != true) { Toast.makeText(getApplicationContext(),"密码最少包含3个字母",Toast.LENGTH_SHORT).show(); } else if (password.length() < 6) { Toast.makeText(getApplicationContext(),"密码不得少于6位数",Toast.LENGTH_SHORT).show(); } else if (password.length() > 16) { Toast.makeText(getApplicationContext(), "密码不得多于16位数", Toast.LENGTH_SHORT).show(); }else { BmobQuery bmobQuery = new BmobQuery<>(); bmobQuery.findObjects(new FindListener() { @Override public void done(List object, BmobException e) {if (e == null){ int count = 0;//判断是否查询到尾--遍历 //查询判断用户是否已经存在 for (User user : object){ if (user.getAcctount().equals(phone)){ Toast.makeText(getApplicationContext(),"该用户存在",Toast.LENGTH_SHORT).show(); //判断验证码是否正确 if (sms.equals(realCode)) { //云端数据更新 User user1 = new User(); user1.setPassword(password); user1.update(user.getObjectId(), new UpdateListener() { @Override public void done(BmobException e) { if (e == null) {Toast.makeText(getApplicationContext(),"密码修改成功",Toast.LENGTH_SHORT).show(); }else {Toast.makeText(getApplicationContext(),"修改失败"+"\n"+"错误代码："+e.getErrorCode(),Toast.LENGTH_LONG).show(); } } }); finish(); break; }else { find_sms.setText(""); Toast.makeText(getApplicationContext(), "验证码错误", Toast.LENGTH_SHORT).show(); } } count++; } //查询到尾没有 if (count >= object.size()){ Toast.makeText(getApplicationContext(),"该用户不存在",Toast.LENGTH_SHORT).show(); }}else { Toast.makeText(getApplicationContext(),"该用户不存在",Toast.LENGTH_SHORT).show();} } }); } break; case R.id.Login_Go: finish(); break; } } //获取输入的数据 private void Getdata() { phone = find_phone.getText().toString().trim(); sms = find_sms.getText().toString().toLowerCase(); password = find_password.getText().toString().trim(); }} 
package com.example.application.activity;import androidx.appcompat.app.AppCompatActivity;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;import com.example.application.R;import com.example.application.tool.User;import java.util.List;import cn.bmob.v3.Bmob;import cn.bmob.v3.BmobQuery;import cn.bmob.v3.exception.BmobException;import cn.bmob.v3.listener.FindListener;import cn.bmob.v3.listener.SaveListener;import cn.bmob.v3.listener.UpdateListener;public class First_interface extends AppCompatActivity implements View.OnClickListener { private EditText idea;//编辑框 private Button submit;//提交按钮 private String context;//编辑框内容 @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_first_interface); Bmob.initialize(this,"ebb1d24c01600c55b1e8be7f2625d7a7"); initView(); } //初始化控件 private void initView() { //定义控件 idea = findViewById(R.id.Idea); submit = findViewById(R.id.submit); //监听 submit.setOnClickListener(this); } public void Getdata(){ context = idea.getText().toString().trim(); } @Override public void onClick(View view) { switch (view.getId()){ case R.id.submit: Getdata(); //传递对象 Intent intent = getIntent(); User user = (User) intent.getSerializableExtra("User"); BmobQuery bmobQuery = new BmobQuery<>(); bmobQuery.findObjects(new FindListener() { @Override public void done(List list, BmobException e) { if(e == null){System.out.println("1");for (User user1 : list) { //查询到一样 if(user.getAcctount().equals(user1.getAcctount())){ //向云端提交数据 user1.setContext(context); user1.update(user1.getObjectId(), new UpdateListener() { @Override public void done(BmobException e) { if (e == null){ Toast.makeText(First_interface.this, "提交成功", Toast.LENGTH_SHORT).show(); }else { Toast.makeText(First_interface.this, "提交失败", Toast.LENGTH_SHORT).show(); } } }); break; }} } } }); break; } }} 至此，本期项目已经全部实现，尚有不足之处，后续将继续完善补充，欢迎各位下载试玩！
来源地址：https://blog.csdn.net/weixin_53046242/article/details/133521071
--结束END--
本文标题: 【安卓app开发一】Android Studio + Bmob后端云实现注册&登录账号、密码找回、意见反馈及数据可视化
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