体温一1
增加用户注册功能，用户注册信息包括用户ID（学号）、用户名（姓名），手机号码，用户单位（班级），用户班级四项基本信息
效果如下：
布局文件activity_zhuce.xml代码如下：
1 <?xml version="1.0" encoding="utf-8"?> 2 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 3 xmlns:tools="http://schemas.android.com/tools" 4 android:layout_width="match_parent" 5 android:layout_height="match_parent" 6 android:orientation="vertical" 7 android:padding="10dp" 8 tools:context=".ZhuceActivity"> 9 10 <TextView 11 android:id="@+id/zhuce_title" 12 android:layout_width="match_parent" 13 android:layout_height="wrap_content" 14 android:text="注册" 15 android:textSize="25sp" 16 android:gravity="center" 17 android:textColor="#000000" 18 /> 19 20 21 <EditText 22 android:id="@+id/zhuce_ID" 23 android:hint="学号" 24 android:textColor="#000000" 25 android:textSize="16sp" 26 android:layout_width="match_parent" 27 android:layout_height="50dp" 28 android:padding="5dp" 29 android:digits="1234567890." 30 android:layout_below="@id/zhuce_title" 31 android:layout_marginTop="20dp" 32 android:background="#FDDEDE" 33 /> 34 35 <EditText 36 android:id="@+id/zhuce_name" 37 android:hint="姓名" 38 android:textColor="#000000" 39 android:textSize="16sp" 40 android:layout_width="match_parent" 41 android:layout_height="50dp" 42 android:padding="5dp" 43 android:layout_below="@id/zhuce_ID" 44 android:layout_marginTop="20dp" 45 android:background="#FDDEDE" 46 /> 47 48 <EditText 49 android:id="@+id/zhuce_phone" 50 android:layout_width="match_parent" 51 android:layout_height="50dp" 52 android:layout_below="@id/zhuce_name" 53 android:layout_marginTop="20dp" 54 android:background="#FDDEDE" 55 android:hint="手机号码" 56 android:digits="1234567890" 57 android:padding="5dp" 58 android:textColor="#000000" 59 android:textSize="16sp" /> 60 61 <EditText 62 android:id="@+id/zhuce_class" 63 android:hint="班级" 64 android:textColor="#000000" 65 android:textSize="16sp" 66 android:layout_width="match_parent" 67 android:layout_height="50dp" 68 android:padding="5dp" 69 android:layout_below="@id/zhuce_phone" 70 android:layout_marginTop="20dp" 71 android:background="#FDDEDE" 72 android:clickable="true" 73 /> 74 75 <Button 76 android:id="@+id/btn_zc" 77 android:layout_width="match_parent" 78 android:layout_height="wrap_content" 79 android:text="注册" 80 android:layout_below="@id/zhuce_class" 81 android:layout_marginTop="20dp" 82 android:background="#1E86FD" 83 /> 84 85 </RelativeLayout>
ZhuceActivity.java
1 public class ZhuceActivity extends AppCompatActivity {
2 //注册按钮
3 private Button mbtn_zhuce;
4 @Override
5 protected void onCreate(Bundle savedInstanceState) {
6 super.onCreate(savedInstanceState);
7 setContentView(R.layout.activity_zhuce);
8
9 //注册按钮
10 mbtn_zhuce = findViewById(R.id.btn_zc);
11 mbtn_zhuce.setOnClickListener(new View.OnClickListener() {
12 @Override
13 public void onClick(View v) {
14 final EditText IDET=findViewById(R.id.zhuce_ID);//获取ID
15 final EditText NameET=findViewById(R.id.zhuce_name);//获取姓名
16 final EditText PhoneET=findViewById(R.id.zhuce_phone);//获取电话
17 final EditText ClassET=findViewById(R.id.zhuce_class);//获取班级
18
19 //存数据
20 mbtn_zhuce.setOnClickListener(new View.OnClickListener() {
21 @Override
22 public void onClick(View v) {
23 Toast.makeText(ZhuceActivity.this,"注册成功",Toast.LENGTH_SHORT).show();
24 Intent intent=null;
25 intent=new Intent(ZhuceActivity.this,MainActivity.class);
26 startActivity(intent);
27 }
28 });
29 }
30 });
31 }
32 }
MyDatabaseHelper.java
1 import android.content.Context;
2 import android.database.sqlite.SQLiteDatabase;
3 import android.database.sqlite.SQLiteOpenHelper;
4
5 public class MyDatabaseHelper extends SQLiteOpenHelper {
6
7 private Context mContext;
8 public MyDatabaseHelper(Context context){
9 super(context,Constants.DATABASE_NAME,null,Constants.VERSION_CODE);
10 mContext=context;
11 }
12
13 @Override
14 public void onCreate(SQLiteDatabase db){
15 //创建时的回调
16 String sqlt="create table " + Constants.User_NAME + "(userID varchar,userName varchar,userPhone varchar,userClass varchar)";
17 db.execSQL(sqlt);
18 }
19
20 @Override
21 public void onUpgrade(SQLiteDatabase db,int oldVersion,int newVersion){
22 //升级时的回调
23 }
24
25 }
Constants.java
1 public class Constants {
2 public static final String DATABASE_NAME ="TemperatureAPP.db";
3 public static final int VERSION_CODE=1;
4 public static final String User_NAME="user";
5 }
User.java
1 public class User {
2
3 private String userID;
4 private String userName;
5 private String userPhone;
6 private String userClass;
7
8 public String getUserID() {
9 return userID;
10 }
11
12 public void setUserID(String userID) {
13 this.userID = userID;
14 }
15
16 public String getUserClass() {
17 return userClass;
18 }
19
20 public void setUserClass(String userClass) {
21 this.userClass = userClass;
22 }
23
24 public String getUserPhone() {
25 return userPhone;
26 }
27
28 public void setUserPhone(String userPhone) {
29 this.userPhone = userPhone;
30 }
31
32 public String getUserName() {
33 return userName;
34 }
35
36 public void setUserName(String userName) {
37 this.userName = userName;
38 }
39
40 public User(){}
41
42 public User(String userID,String userClass,String userPhone,String userName){
43 super();
44 this.userClass=userClass;
45 this.userPhone=userPhone;
46 this.userName=userName;
47 this.userID=userID;
48 }
49
50 @Override
51 public String toString() {
52 return "User{" + "userID='" + userID + '\'' + ", userName='" + userName + '\''+ ", userPhone='" + userPhone + '\''+ ", userClass='" +userClass + '\''+ '}';
53 }
54 }
Dao.java
1 import android.content.Context;
2 import android.database.Cursor;
3 import android.database.sqlite.SQLiteDatabase;
4
5 public class Dao {
6
7 private final MyDatabaseHelper mHelper;
8
9 public Dao(Context context){
10 //创建数据库
11 mHelper=new MyDatabaseHelper(context);
12 }
13
14 public void insertUser(String userID,String userName,String userPhone,String userClass){
15 SQLiteDatabase db=mHelper.getWritableDatabase();
16 String sql="insert into "+Constants.User_NAME+"(userID,userName,userPhone,userClass) values(?,?,?,?)";
17 db.execSQL(sql,new Object[]{userID,userName,userPhone,userClass});
18 db.close();
19 }
20 }
