体温8

今天将体温APP使用了数据库，即当点击提交按钮时可以将数据输入到数据库中

代码如下：

activity_main.xml（提交按钮）

1 <Button
2         android:id="@+id/btn_submit"
3         android:layout_width="match_parent"
4         android:layout_height="wrap_content"
5         android:text="提交"
6         android:layout_below="@id/temperature"
7         android:layout_marginTop="20dp"
8         android:background="#1E86FD"
9         />

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 TABLE_NAME="temper";
5 }

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 sql="create table " + Constants.TABLE_NAME + "(name varchar,data varchar,time varchar,local varchar,temperature varchar)";
17         db.execSQL(sql);
18     }
19 
20     @Override
21     public void onUpgrade(SQLiteDatabase db,int oldVersion,int newVersion){
22         //升级时的回调
23     }
24 
25 }

Dao.java

 1 import android.content.Context;
 2 import android.database.sqlite.SQLiteDatabase;
 3 
 4 public class Dao {
 5 
 6     private final MyDatabaseHelper mHelper;
 7 
 8     public Dao(Context context){
 9         //创建数据库
10         mHelper=new MyDatabaseHelper(context);
11     }
12 
13     public void insert(String Name,String Data,String Time,String Local,String  Tem){
14         SQLiteDatabase db=mHelper.getWritableDatabase();
15         String sql="insert into "+Constants.TABLE_NAME+"(name,data,time,local,temperature) values(?,?,?,?,?)";
16         db.execSQL(sql,new Object[]{Name,Data,Time,Local,Tem});
17         db.close();
18     }
19 
20 }

MainActivity.java

 1 //提交按钮
 2 private Button mBtnSubmit;
 3 @Override
 4 protected void onCreate(Bundle savedInstanceState) {
 5         super.onCreate(savedInstanceState);
 6         setContentView(R.layout.activity_main);
 7         //提交按钮
 8         mBtnSubmit = findViewById(R.id.btn_submit);
 9         mBtnSubmit.setOnClickListener(new View.OnClickListener() {
10             @Override
11             public void onClick(View v) {
12                 final EditText nameET=findViewById(R.id.name);//获取姓名位置
13                 final EditText dataET=findViewById(R.id.data);//获取日期位置
14                 final EditText timeET=findViewById(R.id.time);//获取时间位置
15                 final EditText localET=findViewById(R.id.local);//获取地点位置
16                 final EditText temperatureET=findViewById(R.id.temperature);//获取体温位置
17 
18                 //存数据
19                 mBtnSubmit.setOnClickListener(new View.OnClickListener() {
20                     @Override
21                     public void onClick(View v) {
22 
23                         String NameData=nameET.getText().toString();//获取姓名
24                         String DateData=dataET.getText().toString();//获取日期
25                         String TimeData=timeET.getText().toString();//获取时间
26                         String LocalData=localET.getText().toString();//获取地点
27                         String TemData=temperatureET.getText().toString();//获取体温
28 
29                         new persion().setName(NameData);
30                         new persion().setDate(DateData);
31                         new persion().setTime(TimeData);
32                         new persion().setLocal(LocalData);
33                         new persion().setTemperature(TemData);
34 
35                         //创建数据库
36                         MyDatabaseHelper helper=new MyDatabaseHelper(MainActivity.this);
37                         helper.getWritableDatabase();
38                         Dao dao=new Dao(MainActivity.this);
39 
40                         if(NameData.equals("")|| DateData.equals("")||TimeData.equals("")||LocalData.equals("")||TemData.equals("")){
41                             Toast.makeText(MainActivity.this,"请将信息填写完整",Toast.LENGTH_SHORT).show();
42                         }else{
43                             dao.insert(NameData,DateData,TimeData,LocalData,TemData);
44                             Toast.makeText(MainActivity.this,"保存成功",Toast.LENGTH_SHORT).show();
45                             //跳转到Button的演示界面，即submitActivity
46                             Toast.makeText(MainActivity.this,"提交成功",Toast.LENGTH_SHORT).show();
47                             Intent intent=null;
48                             intent=new Intent(MainActivity.this,SubmitActivity.class);//SubmitActivity为新建的一个Activity
49                             startActivity(intent);
50                         }
51                     }
52                 });
53             }
54         });
55 
56 }    

activity_submit.xml

1 <TextView
2         android:id="@+id/success"
3         android:layout_width="match_parent"
4         android:layout_height="wrap_content"
5         android:text="提交成功"
6         android:textSize="25sp"
7         android:gravity="center"
8         android:textColor="#000000"
9         />

 

 数据库效果图：