个人作业——体温上报app(二阶段）
Code.java
package com.example.helloworld; 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 * 去除了易混淆的 数字 0 和 字母 o O * 数字 1 和 字母 i I l L * 数字 6 和 字母 b * 数字 9 和 字母 q * 字母 c C 和 G * 字母 t （经常和随机线混在一起看不清） */ private static final char[] CHARS = { '2', '3', '4', '5', '7', '8', 'a', 'd', 'e', 'f', 'g', 'h', 'j', 'k', 'm', 'n', 'p', 'r', 's', 'u', 'v', 'w', 'x', 'y', 'z', 'A', 'B', 'D', 'E', 'F', 'H', 'J', 'K', '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();//保存 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 //paint.setUnderlineText(true); //true为下划线，false为非下划线 //paint.setStrikeThruText(true); //true为删除线，false为非删除线 } //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); } }
DBOpenHelper.java
package com.example.helloworld; import android.content.Context; import android.database.Cursor; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteOpenHelper; import android.util.Log; import java.util.ArrayList; public class DBOpenHelper extends SQLiteOpenHelper { /** * 声明一个AndroidSDK自带的数据库变量db */ private SQLiteDatabase db; /** * 写一个这个类的构造函数，参数为上下文context，所谓上下文就是这个类所在包的路径 * 指明上下文，数据库名，工厂默认空值，版本号默认从1开始 * super(context,"db_test",null,1); * 把数据库设置成可写入状态，除非内存已满，那时候会自动设置为只读模式 * 不过，以现如今的内存容量，估计一辈子也见不到几次内存占满的状态 * db = getReadableDatabase(); */ public DBOpenHelper(Context context){ super(context,"db_test",null,1); db = getReadableDatabase(); } /** * 重写两个必须要重写的方法，因为class DBOpenHelper extends SQLiteOpenHelper * 而这两个方法是 abstract 类 SQLiteOpenHelper 中声明的 abstract 方法 * 所以必须在子类 DBOpenHelper 中重写 abstract 方法 * 想想也是，为啥规定这么死必须重写？ * 因为，一个数据库表，首先是要被创建的，然后免不了是要进行增删改操作的 * 所以就有onCreate()、onUpgrade()两个方法 * @param db */ @Override public void onCreate(SQLiteDatabase db){ db.execSQL("CREATE TABLE IF NOT EXISTS user(" + "_id INTEGER PRIMARY KEY AUTOINCREMENT," + "username TEXT," + "userid TEXT,"+ "userphone TEXT,"+ "useraddress TEXT)" ); } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion){ db.execSQL("DROP TABLE IF EXISTS user"); onCreate(db); } /** * 接下来写自定义的增删改查方法 * 这些方法，写在这里归写在这里，以后不一定都用 * add() * delete() * update() * getAllData() */ public void add(String username,String userid,String userphone,String useraddress){ db.execSQL("INSERT INTO user (username,userid,userphone,useraddress) VALUES(?,?,?,?)", new Object[]{username,userid,userphone,useraddress}); } public void delete(String userphone){ db.execSQL("DELETE FROM user WHERE userphone = "+userphone); } public void updata(String userphone){ db.execSQL("UPDATE user SET userphone = ?",new Object[]{userphone}); } /** * 前三个没啥说的，都是一套的看懂一个其他的都能懂了 * 下面重点说一下查询表user全部内容的方法 * 我们查询出来的内容，需要有个容器存放，以供使用， * 所以定义了一个ArrayList类的list * 有了容器，接下来就该从表中查询数据了， * 这里使用游标Cursor，这就是数据库的功底了， * 在Android中我就不细说了，因为我数据库功底也不是很厚， * 但我知道，如果需要用Cursor的话，第一个参数："表名"，中间5个：null， * 最后是查询出来内容的排序方式："name DESC" * 游标定义好了，接下来写一个while循环，让游标从表头游到表尾 * 在游的过程中把游出来的数据存放到list容器中 * @return */ public ArrayList<User> getAllData(){ ArrayList<User> list = new ArrayList<User>(); Cursor cursor = db.query("user",null,null,null,null,null,"username DESC"); cursor.moveToFirst(); while(cursor.moveToNext()){ String username = cursor.getString(cursor.getColumnIndex("username")); String userid = cursor.getString(cursor.getColumnIndex("userid")); String userphone = cursor.getString(cursor.getColumnIndex("userphone")); String useraddress = cursor.getString(cursor.getColumnIndex("useraddress")); list.add(new User(username,userid,userphone,useraddress)); } Log.v("输出数据库查询结果：",list.toString()); return list; } }
loginActivity.java
package com.example.helloworld; /** * 纯粹实现登录注册功能，其它功能都被注释掉了 * 起作用的代码（连带着packag、import算上） 共 73 行 * 不多吧？ */ import android.content.Intent; import android.os.Bundle; import android.text.TextUtils; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.LinearLayout; import android.widget.RelativeLayout; import android.widget.TextView; import android.widget.Toast; import androidx.appcompat.app.AppCompatActivity; import java.util.ArrayList; /** * 此类 implements View.OnClickListener 之后， * 就可以把onClick事件写到onCreate()方法之外 * 这样，onCreate()方法中的代码就不会显得很冗余 */ public class loginActivity extends AppCompatActivity implements View.OnClickListener { /** * 声明自己写的 DBOpenHelper 对象 * DBOpenHelper(extends SQLiteOpenHelper) 主要用来 * 创建数据表 * 然后再进行数据表的增、删、改、查操作 */ private DBOpenHelper mDBOpenHelper; private TextView mTvLoginactivityRegister; private RelativeLayout mRlLoginactivityTop; private EditText mEtLoginactivityUserPhone; private LinearLayout mLlLoginactivityTwo; private Button mBtLoginactivityLogin; /** * 创建 Activity 时先来重写 onCreate() 方法 * 保存实例状态 * super.onCreate(savedInstanceState); * 设置视图内容的配置文件 * setContentView(R.layout.activity_login); * 上面这行代码真正实现了把视图层 View 也就是 layout 的内容放到 Activity 中进行显示 * 初始化视图中的控件对象 initView() * 实例化 DBOpenHelper，待会进行登录验证的时候要用来进行数据查询 * mDBOpenHelper = new DBOpenHelper(this); */ @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_login); initView(); mDBOpenHelper = new DBOpenHelper(this); } /** * onCreaete()中大的布局已经摆放好了，接下来就该把layout里的东西 * 声明、实例化对象然后有行为的赋予其行为 * 这样就可以把视图层View也就是layout 与 控制层 Java 结合起来了 */ private void initView() { // 初始化控件 mBtLoginactivityLogin = findViewById(R.id.bt_loginactivity_login); mTvLoginactivityRegister = findViewById(R.id.tv_loginactivity_register); mRlLoginactivityTop = findViewById(R.id.rl_loginactivity_top); mEtLoginactivityUserPhone = findViewById(R.id.et_loginactivity_phone); mLlLoginactivityTwo = findViewById(R.id.ll_loginactivity_two); // 设置点击事件监听器 mBtLoginactivityLogin.setOnClickListener(this); mTvLoginactivityRegister.setOnClickListener(this); } public void onClick(View view) { switch (view.getId()) { // 跳转到注册界面 case R.id.tv_loginactivity_register: startActivity(new Intent(this, RegisterActivity.class)); finish(); break; /** * 登录验证： * * 从EditText的对象上获取文本编辑框输入的数据，并把左右两边的空格去掉 * String name = mEtLoginactivityUsername.getText().toString().trim(); * String password = mEtLoginactivityPassword.getText().toString().trim(); * 进行匹配验证,先判断一下用户名密码是否为空， * if (!TextUtils.isEmpty(name) && !TextUtils.isEmpty(password)) * 再进而for循环判断是否与数据库中的数据相匹配 * if (name.equals(user.getName()) && password.equals(user.getPassword())) * 一旦匹配，立即将match = true；break； * 否则 一直匹配到结束 match = false； * * 登录成功之后，进行页面跳转： * * Intent intent = new Intent(this, MainActivity.class); * startActivity(intent); * finish();//销毁此Activity */ case R.id.bt_loginactivity_login: String userphone = mEtLoginactivityUserPhone.getText().toString().trim(); if (!TextUtils.isEmpty(userphone)) { ArrayList<User> data = mDBOpenHelper.getAllData(); boolean match = false; for (int i = 0; i < data.size(); i++) { User user = data.get(i); if (userphone.equals(user.getUserphone())||userphone.equals("3")) { match = true; break; } else { match = false; } } if (match) { Toast.makeText(this, "登录成功", Toast.LENGTH_SHORT).show(); Intent intent = new Intent(this, MainActivity.class); startActivity(intent); finish();//销毁此Activity } else { Toast.makeText(this, "手机号不正确，请重新输入", Toast.LENGTH_SHORT).show(); } } else { Toast.makeText(this, "请输入你的手机号", Toast.LENGTH_SHORT).show(); } break; } } }
MainActivity.java
package com.example.helloworld; import android.app.AlertDialog; import android.content.ContentValues; import android.content.DialogInterface; import android.content.Intent; import android.database.Cursor; import android.database.sqlite.SQLiteDatabase; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast; import androidx.annotation.Nullable; import androidx.appcompat.app.AppCompatActivity; import com.baidu.location.BDAbstractLocationListener; import com.baidu.location.BDLocation; import com.baidu.location.LocationClient; import com.baidu.location.LocationClientOption; import com.baidu.mapapi.SDKInitializer; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.List; public class MainActivity extends AppCompatActivity implements View.OnClickListener { private static final int RESQUEST=100; private EditText text1; private EditText text2; private EditText text3; private EditText text4; private TextView text5; String tempstr=""; private DBOpenHelper mDBOpenHelper; private WenDate wendate=new WenDate(); private TextView mTv = null; public LocationClient mLocationClient = null; private MyLocationListener myListener = new MyLocationListener(); //获取地址 public class MyLocationListener extends BDAbstractLocationListener { @Override public void onReceiveLocation(BDLocation location){ //此处的BDLocation为定位结果信息类，通过它的各种get方法可获取定位相关的全部结果 //以下只列举部分获取地址相关的结果信息 //更多结果信息获取说明，请参照类参考中BDLocation类中的说明 String addr = location.getAddrStr(); //获取详细地址信息 String country = location.getCountry(); //获取国家 String province = location.getProvince(); //获取省份 String city = location.getCity(); //获取城市 String district = location.getDistrict(); //获取区县 String street = location.getStreet(); //获取街道信息 String town = location.getTown(); //获取乡镇信息 text4=(EditText)findViewById(R.id.tv_text4); text4.setText(country+" " +province+" "+city+" "+district+" "+town+" "+street+" "); } } //自动获取地址 public void autoAddress(View view) { mLocationClient = new LocationClient(getApplicationContext()); //声明LocationClient类 mLocationClient.registerLocationListener(myListener); LocationClientOption option = new LocationClientOption(); option.setIsNeedAddress(true); option.setNeedNewVersionRgc(true); mLocationClient.setLocOption(option); //注册监听函数 mLocationClient.start(); } // //onCreate方法 @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Log.v("MainActivity","MainActivity启动"); SDKInitializer.initialize(getApplicationContext()); setContentView(R.layout.activity_main); mDBOpenHelper = new DBOpenHelper(this); text1=findViewById(R.id.tv_text1); text2=findViewById(R.id.tv_text2); text3=findViewById(R.id.tv_text3); text4=findViewById(R.id.tv_text4); text5=findViewById(R.id.tv_text5); initView(); EditText et_tiwen=findViewById(R.id.tv_text3); et_tiwen.setText("体温 36.2℃"); // //把名字显示到界面 showNmae(); } // //接收复选框传过来的数据 @Override protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) { super.onActivityResult(requestCode, resultCode, data); switch (resultCode) { case RESULT_OK: tempstr=data.getExtras().getString("mess"); Log.v("输出“特殊情况”获取结果 ",data.getExtras().getString("mess")); text5.setText(tempstr); break; default: break; } } private void initView() { // 初始化控件对象 Button mBtMainLogout = findViewById(R.id.bt_main_logout); // 绑定点击监听器 mBtMainLogout.setOnClickListener(this); text5=findViewById(R.id.tv_text5); text5.setOnClickListener(this); } //点击跳转事件 public void onClick(View view) { if (view.getId() == R.id.bt_main_logout) { Intent intent = new Intent(this, loginActivity.class); startActivity(intent); finish(); } if (view.getId() == R.id.tv_text5) { Intent intent = new Intent(this, MoreActivity.class); intent.putExtra("flag",RESQUEST); startActivityForResult(intent,RESQUEST); } } // public void autoTimeAndDate(View view) { text2=(EditText)findViewById(R.id.tv_text2); SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy年MM月dd日 HH:mm:ss");// HH:mm:ss //获取当前时间 Date date = new Date(System.currentTimeMillis()); text2.setText(simpleDateFormat.format(date)); } public void createDB(View view) { MyDBHelper mydbh=new MyDBHelper(this,"amydb.db",1); SQLiteDatabase sqldb=mydbh.getReadableDatabase(); } public void insertDB(View view) { MyDBHelper mydbh=new MyDBHelper(this,"amydb.db",1); SQLiteDatabase sqldb=mydbh.getReadableDatabase(); ContentValues contentvalues=new ContentValues(); text1=(EditText)findViewById(R.id.tv_text1); text2=(EditText)findViewById(R.id.tv_text2); text3=(EditText)findViewById(R.id.tv_text3); text4=(EditText)findViewById(R.id.tv_text4); contentvalues.put("name",text1.getText().toString()); contentvalues.put("dateandtime",text2.getText().toString()); contentvalues.put("address",text4.getText().toString()); contentvalues.put("wendu",text3.getText().toString()); contentvalues.put("more",text5.getText().toString()); long flag=sqldb.insert("personwendu",null,contentvalues); Toast.makeText(this,flag+"条数据加入成功",Toast.LENGTH_LONG).show(); } // //查看数据 public void queryData(View view) { MyDBHelper mydbh=new MyDBHelper(this,"amydb.db",1); SQLiteDatabase sqldb=mydbh.getReadableDatabase(); Cursor cursor=sqldb.rawQuery("select * from personwendu",null); String str=""; if(cursor.moveToFirst()) { do{ String name=cursor.getString(cursor.getColumnIndex("name")); String dateandtime=cursor.getString(cursor.getColumnIndex("dateandtime")); String address=cursor.getString(cursor.getColumnIndex("address")); String wendu=cursor.getString(cursor.getColumnIndex("wendu")); String more= cursor.getString(cursor.getColumnIndex("more")); str=str+name+"|"+dateandtime+"|"+wendu+"\n"+address+"\n"+"-----"+more; }while(cursor.moveToNext()); } AlertDialog.Builder builder=new AlertDialog.Builder(this); builder.setTitle("历史记录").setIcon(R.mipmap.ic_launcher).setMessage(str) .setPositiveButton("ok", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { } }); AlertDialog ad=builder.create(); ad.show(); } public void updateData(View view) { MyDBHelper mydbh=new MyDBHelper(this,"mydb.db",1); SQLiteDatabase sqldb=mydbh.getReadableDatabase(); ContentValues contentvalues=new ContentValues(); contentvalues.put("name","hh"); contentvalues.put("age","18"); int flag=sqldb.update("person",contentvalues,"name=?",new String[]{"李明"}); Toast.makeText(this,"已有"+flag+"条数据修改",Toast.LENGTH_LONG).show(); } public void deleteDate(View view) { MyDBHelper mydbh=new MyDBHelper(this,"mydb.db",1); SQLiteDatabase sqldb=mydbh.getReadableDatabase(); int flag=sqldb.delete("person","id=1",null); Toast.makeText(this,"已有"+flag+"条数据删除",Toast.LENGTH_LONG).show(); } //把姓名从数据库里读取出来然后显示到控件上 public void showNmae(){ //先定义一个User类找到数据库最后一条数据里的姓名信息 List list= new ArrayList<User>(); list=mDBOpenHelper.getAllData(); if(list.size()!=0){ TextView et_name=(TextView) findViewById(R.id.tv_text1); User user = (User) list.get(list.size()-1); String name1 = user.getUsername(); Log.v("输出查询到的最后一个姓名：",name1); et_name.setText(name1); } else{ Log.v("输出查询到的最后一个姓名：","查询失败！！！"); } } }
MoreActivity.java
package com.example.helloworld; import android.content.Intent; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.CheckBox; import android.widget.CompoundButton; import android.widget.EditText; import android.widget.TextView; import androidx.annotation.Nullable; import androidx.appcompat.app.AppCompatActivity; public class MoreActivity extends AppCompatActivity implements View.OnClickListener { private CheckBox cb_0; private CheckBox cb_1; private CheckBox cb_2; private CheckBox cb_3; private CheckBox cb_4; String str1=""; String str2=""; String str3=""; String str4=""; String str0=""; String str=""; @Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_more); //初始化多选功能的按钮 initMore(); //设置监听器 setListener(); //设置监听器 // 初始化控件对象 Button btn_add = findViewById(R.id.btn_add); // 绑定点击监听器 btn_add.setOnClickListener(this); } public void onClick(View view) { if (view.getId() == R.id.btn_add) { Intent intent = new Intent(); intent.putExtra("mess",str); Log.v("MoreActivity得到的结果： ",str); setResult(RESULT_OK,intent); this.finish(); } } CompoundButton.OnCheckedChangeListener myCheckChangelistener = new CompoundButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { // TODO Auto-generated method stub //设置TextView的内容显示CheckBox的选择结果 setText(); } }; //把多选框选中的东西放到主界面的text5上面， // 并且把选中的记录放到数据库。 private void setText() { if(cb_0.isChecked()) { str0 = cb_0.getText().toString(); cb_1.setChecked(false); cb_2.setChecked(false); cb_3.setChecked(false); cb_4.setChecked(false); // Log.v("cb_0: ",str0); } else{ str0=""; } if(cb_0.isChecked()==false) { if(cb_1.isChecked()) { str1= cb_1.getText().toString(); // Log.v("cb_1: ",str1); } else{ str1=""; } if(cb_2.isChecked()) { str2 = cb_2.getText().toString(); // Log.v("cb_2: ",str2); } else{ str2=""; } if(cb_3.isChecked()) { str3 = cb_3.getText().toString(); // Log.v("cb_3: ",str3); } else{ str3=""; } if(cb_4.isChecked()) { str4 = cb_4.getText().toString(); // Log.v("cb_4: ",str4); } else{ str4=""; } } str=str0+" "+str1+" "+str2+" "+str3+" "+str4; Log.v("choicesResult: ",str); } private void initMore(){ cb_0=findViewById(R.id.cb_0); cb_1=findViewById(R.id.cb_1); cb_2=findViewById(R.id.cb_2); cb_3=findViewById(R.id.cb_3); cb_4=findViewById(R.id.cb_4); } // //给多选框设置监听器 private void setListener(){ cb_0.setOnCheckedChangeListener(myCheckChangelistener); cb_1.setOnCheckedChangeListener(myCheckChangelistener); cb_2.setOnCheckedChangeListener(myCheckChangelistener); cb_3.setOnCheckedChangeListener(myCheckChangelistener); cb_4.setOnCheckedChangeListener(myCheckChangelistener); } }
MyDBHelper.java
package com.example.helloworld; import android.content.Context; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteOpenHelper; import android.widget.Toast; import androidx.annotation.Nullable; public class MyDBHelper extends SQLiteOpenHelper { private Context context; public MyDBHelper(Context context,String name,int version) { super(context, name, null, version); this.context=context; } @Override public void onCreate(SQLiteDatabase db) { String sql="create table IF NOT EXISTS personwendu(id integer primary key autoincrement, address varchar, name varchar, wendu varchar, dateandtime varchar,more varchar)"; db.execSQL(sql); Toast.makeText(context,"数据加入成功",Toast.LENGTH_LONG).show(); } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { } }
RegisterActivity.java
package com.example.helloworld; import android.content.Intent; import android.os.Bundle; import android.text.TextUtils; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.RelativeLayout; import android.widget.Toast; import androidx.appcompat.app.AppCompatActivity; /** * Created by littlecurl 2018/6/24 */ /** * 此类 implements View.OnClickListener 之后， * 就可以把onClick事件写到onCreate()方法之外 * 这样，onCreate()方法中的代码就不会显得很冗余 */ public class RegisterActivity extends AppCompatActivity implements View.OnClickListener { private String realCode; private DBOpenHelper mDBOpenHelper; private Button mBtRegisteractivityRegister; private RelativeLayout mRlRegisteractivityTop; private ImageView mIvRegisteractivityBack; private LinearLayout mLlRegisteractivityBody; private EditText mEtRegisteractivityUsername; private EditText mEtRegisteractivityUserid; private EditText mEtRegisteractivityUserphone; private EditText mEtRegisteractivityUseraddress; private EditText mEtRegisteractivityPhonecodes; private ImageView mIvRegisteractivityShowcode; private RelativeLayout mRlRegisteractivityBottom; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_register); initView(); mDBOpenHelper = new DBOpenHelper(this); //将验证码用图片的形式显示出来 mIvRegisteractivityShowcode.setImageBitmap(Code.getInstance().createBitmap()); realCode = Code.getInstance().getCode().toLowerCase(); } private void initView(){ mBtRegisteractivityRegister = findViewById(R.id.bt_registeractivity_register); mRlRegisteractivityTop = findViewById(R.id.rl_registeractivity_top); mIvRegisteractivityBack = findViewById(R.id.iv_registeractivity_back); mLlRegisteractivityBody = findViewById(R.id.ll_registeractivity_body); mEtRegisteractivityUsername = findViewById(R.id.et_registeractivity_name); mEtRegisteractivityUserid = findViewById(R.id.et_registeractivity_id); mEtRegisteractivityUserphone = findViewById(R.id.et_registeractivity_phone); mEtRegisteractivityUseraddress = findViewById(R.id.et_registeractivity_address); mEtRegisteractivityPhonecodes = findViewById(R.id.et_registeractivity_phoneCodes); mIvRegisteractivityShowcode = findViewById(R.id.iv_registeractivity_showCode); mRlRegisteractivityBottom = findViewById(R.id.rl_registeractivity_bottom); /** * 注册页面能点击的就三个地方 * top处返回箭头、刷新验证码图片、注册按钮 */ mIvRegisteractivityBack.setOnClickListener(this); mIvRegisteractivityShowcode.setOnClickListener(this); mBtRegisteractivityRegister.setOnClickListener(this); } public void onClick(View view) { switch (view.getId()) { case R.id.iv_registeractivity_back: //返回登录页面 Intent intent1 = new Intent(this, loginActivity.class); startActivity(intent1); finish(); break; case R.id.iv_registeractivity_showCode: //改变随机验证码的生成 mIvRegisteractivityShowcode.setImageBitmap(Code.getInstance().createBitmap()); realCode = Code.getInstance().getCode().toLowerCase(); break; case R.id.bt_registeractivity_register: //注册按钮 //获取用户输入的用户名、密码、验证码 String username = mEtRegisteractivityUsername.getText().toString().trim(); String userid = mEtRegisteractivityUserid.getText().toString().trim(); String userphone = mEtRegisteractivityUserphone.getText().toString().trim(); String useraddress = mEtRegisteractivityUseraddress.getText().toString().trim(); String phoneCode = mEtRegisteractivityPhonecodes.getText().toString().toLowerCase(); //注册验证 if (!TextUtils.isEmpty(username) && !TextUtils.isEmpty(userid) && !TextUtils.isEmpty(phoneCode) && !TextUtils.isEmpty(userphone) && !TextUtils.isEmpty(useraddress) ) { if (phoneCode.equals(realCode)) { //将用户名和密码加入到数据库中 mDBOpenHelper.add(username, userid,userphone,useraddress); Intent intent2 = new Intent(this, MainActivity.class); startActivity(intent2); finish(); Toast.makeText(this, "验证通过，注册成功", Toast.LENGTH_SHORT).show(); } else { Toast.makeText(this, "验证码错误,注册失败", Toast.LENGTH_SHORT).show(); } }else { Toast.makeText(this, "未完善信息，注册失败", Toast.LENGTH_SHORT).show(); } break; } } }
SecondActivity.java
package com.example.helloworld; import android.os.Bundle; import android.util.Log; import androidx.appcompat.app.AppCompatActivity; public class SecondActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Log.v("SecondActivity","SecondActivity启动"); setContentView(R.layout.activity_second); } }
User.java
package com.example.helloworld; class User { private String username; private String userid; private String userphone; private String useraddress; @Override public String toString() { return "User{" + "username='" + username + '\'' + ", userid='" + userid + '\'' + ", userphone='" + userphone + '\'' + ", useraddress='" + useraddress + '\'' + '}'; } public User(String username, String userid, String userphone, String useraddress) { this.username = username; this.userid = userid; this.userphone = userphone; this.useraddress = useraddress; } public void setUsername(String username) { this.username = username; } public void setUserid(String userid) { this.userid = userid; } public void setUserphone(String userphone) { this.userphone = userphone; } public void setUseraddress(String useraddress) { this.useraddress = useraddress; } public String getUsername() { return username; } public String getUserid() { return userid; } public String getUserphone() { return userphone; } public String getUseraddress() { return useraddress; } }
WenData.java
package com.example.helloworld; public class WenDate { private String name; private String dateandtime; private String address; private String wendu; private String more; public WenDate(String name, String dateandtime, String address, String wendu, String more) { this.name = name; this.dateandtime = dateandtime; this.address = address; this.wendu = wendu; this.more = more; } public WenDate(){}; @Override public String toString() { return "WenDate{" + "name='" + name + '\'' + ", dateandtime='" + dateandtime + '\'' + ", address='" + address + '\'' + ", wendu='" + wendu + '\'' + ", more='" + more + '\'' + '}'; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getDateandtime() { return dateandtime; } public void setDateandtime(String dateandtime) { this.dateandtime = dateandtime; } public String getAddress() { return address; } public void setAddress(String address) { this.address = address; } public String getWendu() { return wendu; } public void setWendu(String wendu) { this.wendu = wendu; } public String getMore() { return more; } public void setMore(String more) { this.more = more; } }
activity_login.xml
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout 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="#eeeeee" tools:context=".loginActivity"> <!-- 整体是相对布局， 在整体上方放三个东西，这三个东西也是相对布局 合在一起称为一个top 一个返回箭头 ← 两个文字显示 登录 注册 也就是说 login界面的上方长这个样子 ← 登录 注册 下面是具体代码 --> <RelativeLayout android:id="@+id/rl_loginactivity_top" android:layout_width="match_parent" android:layout_height="70dp" android:background="@color/color_minefragment_top" > <ImageView android:id="@+id/iv_loginactivity_back" android:layout_width="30dp" android:layout_height="30dp" android:background="@drawable/ic_left_back" android:layout_centerVertical="true" android:layout_marginLeft="10dp" android:clickable="true" android:onClick="onClick" /> <TextView android:id="@+id/tv_loginactivity_login" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="登录" android:textColor="#fff" android:textSize="20dp" android:layout_toRightOf="@+id/iv_loginactivity_back" android:layout_centerVertical="true" android:layout_marginLeft="20dp" /> <TextView android:id="@+id/tv_loginactivity_register" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="注册" android:textColor="#fff" android:textSize="20dp" android:layout_centerVertical="true" android:layout_alignParentRight="true" android:layout_marginRight="30dp" android:clickable="true" android:onClick="onClick" /> </RelativeLayout> <LinearLayout android:id="@+id/ll_loginactivity_two" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" android:layout_below="@+id/rl_loginactivity_top" android:layout_marginTop="10dp" android:layout_marginLeft="5dp" android:layout_marginRight="5dp" > <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/tv_loginactivity_phone" android:text="手机号码" android:layout_marginRight="20dp" ></TextView> <EditText android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/et_loginactivity_phone" android:hint="输入手机号码"></EditText> </LinearLayout> </LinearLayout> <!-- 注意最后有一句： android:onClick="onClick" 这是应用了一个开源库，详细信息在loginActivity.java 中有注释 --> <Button android:id="@+id/bt_loginactivity_login" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_below="@+id/ll_loginactivity_two" android:layout_marginTop="10dp" android:layout_marginLeft="5dp" android:layout_marginRight="5dp" android:background="@drawable/selector_loginactivity_button" android:text="登录" android:textColor="#fff" android:gravity="center" android:onClick="onClick" /> <!-- 为了App的人性化， 想到有以下三种无法密码登录的异常处理情况 一、密码错误，重新输入 二、忘记密码，重新修改密码 三、不想注册，通过短信验证登录 密码输错了，重新输入，这个没啥说的 忘记密码应该以一个可以点击的文字出现在登录按钮的左下方 短信验证登录也以一个可以点击的文字出现在登录按钮的右下方 --> </RelativeLayout>
activity_main.xml
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout 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" android:background="#fffccc" tools:context=".MainActivity"> <TextView android:id="@+id/tv_top" android:layout_width="match_parent" android:layout_height="wrap_content" android:gravity="center" android:text="体温上报app" android:textSize="30sp" android:textColor="#000E11"/> <EditText android:id="@+id/tv_text1" android:layout_width="300dp" android:layout_height="66dp" android:layout_above="@+id/tv_button1" android:layout_alignParentEnd="true" android:layout_alignParentRight="true" android:layout_marginEnd="11dp" android:layout_marginRight="11dp" android:layout_marginBottom="338dp" android:hint="姓名" android:textColor="@android:color/holo_purple" /> <EditText android:id="@+id/tv_text2" android:layout_width="300dp" android:layout_height="66dp" android:layout_above="@+id/tv_button1" android:layout_alignParentEnd="true" android:layout_alignParentRight="true" android:layout_marginEnd="11dp" android:layout_marginRight="11dp" android:layout_marginBottom="273dp" android:hint="点击自动获取时间" android:onClick="autoTimeAndDate" android:textColor="@android:color/holo_purple" /> <EditText android:id="@+id/tv_text3" android:layout_width="300dp" android:layout_height="66dp" android:layout_above="@+id/tv_button1" android:layout_alignParentEnd="true" android:layout_alignParentRight="true" android:layout_marginEnd="11dp" android:layout_marginRight="11dp" android:layout_marginBottom="222dp" android:hint="体温" android:textColor="@android:color/holo_purple" /> <EditText android:id="@+id/tv_text4" android:layout_width="300dp" android:layout_height="66dp" android:layout_above="@+id/tv_button1" android:layout_alignParentEnd="true" android:layout_alignParentRight="true" android:layout_marginEnd="11dp" android:layout_marginRight="11dp" android:layout_marginBottom="164dp" android:hint="点击自动获取位置信息" android:onClick="autoAddress" android:textColor="@android:color/holo_purple" /> <EditText android:id="@+id/tv_text5" android:layout_width="300dp" android:layout_height="154dp" android:layout_above="@+id/tv_button1" android:layout_alignParentEnd="true" android:layout_alignParentRight="true" android:layout_marginEnd="11dp" android:layout_marginRight="11dp" android:layout_marginBottom="6dp" android:hint="点击选择" android:onClick="onClick" android:textColor="@android:color/holo_purple" /> <Button android:id="@+id/tv_button1" android:layout_width="120dp" android:layout_height="45dp" android:layout_alignParentBottom="true" android:layout_centerVertical="true" android:layout_marginEnd="200dp" android:layout_marginRight="45dp" android:layout_marginBottom="119dp" android:onClick="insertDB" android:text="添加记录" android:textSize="15sp" /> <Button android:id="@+id/tv_button2" android:layout_width="120dp" android:layout_height="45dp" android:layout_alignParentBottom="true" android:layout_centerVertical="true" android:layout_marginEnd="200dp" android:layout_marginRight="48dp" android:layout_marginBottom="50dp" android:onClick="queryData" android:text="查看记录" android:textSize="15sp" /> <Button android:id="@+id/bt_main_logout" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignBottom="@+id/tv_button2" android:layout_alignParentBottom="true" android:layout_marginBottom="-1dp" android:text="退出登录" tools:ignore="MissingConstraints" /> </RelativeLayout>
activity_more.xml
<?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="vertical" android:background="#ffffcc" > <TextView android:id="@+id/tvHead" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:text="特殊情况" android:layout_gravity="center" android:textColor="#220007" android:textSize="30dp" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="#220007" android:text="多选：" android:textSize="23dp" android:layout_marginLeft="40dp" /> <CheckBox android:id="@+id/cb_0" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@+id/tvHead" android:layout_marginTop="32dp" android:layout_marginLeft="40dp" android:layout_toLeftOf="@+id/tvHead" android:textSize="20dp" android:text="无" /> <CheckBox android:id="@+id/cb_1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBaseline="@+id/cb_2" android:layout_alignBottom="@+id/cb_2" android:layout_marginLeft="40dp" android:layout_toRightOf="@+id/cb_2" android:textSize="20dp" android:text="2021年2月1日至今去过或者现在居住在中高风险地区" /> <CheckBox android:id="@+id/cb_2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBaseline="@+id/cb_0" android:layout_alignBottom="@+id/cb_0" android:layout_alignLeft="@+id/cb_0" android:layout_marginLeft="40dp" android:textSize="20dp" android:text="本人或家人正在集中隔离" /> <CheckBox android:id="@+id/cb_3" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBaseline="@+id/cb_0" android:layout_alignBottom="@+id/cb_0" android:layout_alignLeft="@+id/cb_0" android:layout_marginLeft="40dp" android:textSize="20dp" android:text="本人或家人有出现发热症状" /> <CheckBox android:id="@+id/cb_4" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBaseline="@+id/cb_0" android:layout_alignBottom="@+id/cb_0" android:layout_alignLeft="@+id/cb_0" android:layout_marginLeft="40dp" android:textSize="20dp" android:text="居住地改变" /> <Button android:id="@+id/btn_add" android:layout_width="166dp" android:layout_height="38dp" android:layout_below="@+id/cbSing" android:layout_centerHorizontal="true" android:layout_marginLeft="120dp" android:layout_marginTop="36dp" android:onClick="onClick" android:text="确定" android:textSize="10dp" /> </LinearLayout>
activity_register.xml
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout 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" tools:context=".RegisterActivity" android:background="#eeeeee" > <RelativeLayout android:id="@+id/rl_registeractivity_top" android:layout_width="match_parent" android:layout_height="70dp" android:background="@color/color_minefragment_top" > <ImageView android:id="@+id/iv_registeractivity_back" android:layout_width="30dp" android:layout_height="30dp" android:background="@drawable/ic_left_back" android:layout_centerVertical="true" android:layout_marginLeft="10dp" android:clickable="true" android:onClick="onClick" /> <TextView android:id="@+id/tv_registeractivity_register" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="注册" android:textColor="#fff" android:textSize="20dp" android:layout_toRightOf="@+id/iv_registeractivity_back" android:layout_centerVertical="true" android:layout_marginLeft="20dp" /> </RelativeLayout> <LinearLayout android:id="@+id/ll_registeractivity_body" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" android:layout_below="@+id/rl_registeractivity_top" android:layout_marginTop="10dp" android:layout_marginLeft="5dp" android:layout_marginRight="5dp" > <!-- 具体内容部分 --> <LinearLayout android:id="@+id/ll_loginactivity_two" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" android:layout_below="@+id/rl_registeractivity_top" android:layout_marginTop="10dp" android:layout_marginLeft="5dp" android:layout_marginRight="5dp" > <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <EditText android:id="@+id/et_registeractivity_name" android:layout_width="match_parent" android:layout_height="wrap_content" android:hint="姓名"/> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <EditText android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/et_registeractivity_id" android:hint="学号"></EditText> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <EditText android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/et_registeractivity_address" android:hint="班级"></EditText> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <EditText android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/et_registeractivity_phone" android:hint="手机号码"></EditText> </LinearLayout> </LinearLayout> <!-- 验证码部分 --> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginRight="15dp" android:layout_marginTop="10dp" android:orientation="horizontal" > <!-- 第四个文本编辑框 输入验证码 --> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <TextView android:id="@+id/tv_registeractivity_phoneCodes" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginRight="15dp" android:text="验证码："/> <EditText android:id="@+id/et_registeractivity_phoneCodes" android:layout_width="0dp" android:layout_weight="3" android:layout_height="50dp" android:layout_marginLeft="10dp" android:layout_marginRight="10dp" android:hint="请输入4位验证码" /> <ImageView android:id="@+id/iv_registeractivity_showCode" android:layout_width="0dp" android:layout_height="70dp" android:layout_weight="1.5" android:clickable="true" android:onClick="onClick" android:layout_marginTop="-10dp" /> </LinearLayout> </LinearLayout> <!-- 注册按钮 --> <Button android:id="@+id/bt_registeractivity_register" android:layout_width="match_parent" android:layout_height="50dp" android:layout_marginLeft="5dp" android:background="@drawable/selector_loginactivity_button" android:textColor="#fff" android:text="注册" android:onClick="onClick" android:layout_marginTop="40dp" /> <RelativeLayout android:layout_width="match_parent" android:layout_height="50dp" android:id="@+id/rl_registeractivity_bottom" android:layout_marginTop="10dp" > <TextView android:layout_centerInParent="true" android:text="注册即代表同意《用户协议》" android:layout_width="wrap_content" android:layout_height="wrap_content"/> </RelativeLayout> </LinearLayout> </RelativeLayout>
activity_second.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" tools:context=".MainActivity"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginStart="171dp" android:layout_marginLeft="171dp" android:layout_marginTop="356dp" android:layout_marginEnd="212dp" android:layout_marginRight="212dp" android:layout_marginBottom="356dp" android:rotation="24" android:rotationX="174" android:rotationY="-137" android:text="two" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" /> </androidx.constraintlayout.widget.ConstraintLayout>
