2021 2 7 体温登记App开发总结

App截图;

 

 

 

 设计思路：在日期和事件的填写上使用日期和事件选择器，为提交按钮绑定检验数据是否合格的事件。数据的存储使用SQLite数据库，保存在date目录中，触发查看按钮转发到另一个activity，从数据库读取数据保存在Cursor中，循环光标为线性布局管理器添加文本组　       件，在文本组件下添加删除按钮，通过时间进行删除操作，在actionbar中添加菜单，选项为搜索日期和清空数据，搜索日期同样选择日期选择器，除此之外为查看数据的activity指定父activity也就是等级数据的activity，一遍在activitybar中添加返回上一级的箭头。

源代码:

MainActivity：

package com.example.temperatureapp;

import androidx.annotation.Nullable;
import androidx.appcompat.app.ActionBar;
import androidx.appcompat.app.AppCompatActivity;

import android.content.ContentValues;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
    private SQLhelper sqLhelper;
    private  SQLiteDatabase sqliteDatabase;
    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == 0x11 && resultCode == 0x11) {
            Bundle bundle = data.getExtras();
            String time = bundle.getString("time");
            EditText time1 = findViewById(R.id.time);
            time1.setText(time);
        } else if (requestCode == 0x22 && resultCode == 0x22) {
            Bundle bundle = data.getExtras();
            String time = bundle.getString("time");
            EditText time1 = findViewById(R.id.time2);
            time1.setText(time);
        }
    }
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        sqLhelper=new SQLhelper(MainActivity.this,"Temperature",null,1);
        ActionBar actionBar=getSupportActionBar();
        actionBar.hide();
        setContentView(R.layout.activity_main);
        final EditText time2=findViewById(R.id.time2);
        final EditText time=findViewById(R.id.time);
        final EditText Temp=findViewById(R.id.Temp);
        final TextView button=findViewById(R.id.addButton);
        final TextView lookbutton=findViewById(R.id.lookButton);
        time.setOnFocusChangeListener(new View.OnFocusChangeListener() {
            @Override
            public void onFocusChange(View v, boolean hasFocus) {
                if(hasFocus){
                    Intent intent=new Intent(MainActivity.this,getData_activity.class);
                    startActivityForResult(intent,0x11);
                }
            }
        });
        time2.setOnFocusChangeListener(new View.OnFocusChangeListener() {
            @Override
            public void onFocusChange(View v, boolean hasFocus) {
                if(hasFocus){
                    Intent intent=new Intent(MainActivity.this,getTime_Activity.class);
                    startActivityForResult(intent,0x22);
                }
            }
        });
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (TextUtils.isEmpty(Temp.getText().toString().trim()) || TextUtils.isEmpty(time.getText().toString().trim())) {
                    Toast.makeText(MainActivity.this, "请填写完整", Toast.LENGTH_SHORT).show();
                }
                else {
                    sqliteDatabase = sqLhelper.getWritableDatabase();
                    ContentValues values = new ContentValues();
                    values.put("Temper", Temp.getText().toString());
                    values.put("time", time.getText().toString());
                    values.put("time2", time2.getText().toString());
                    sqliteDatabase.insert("temperature", null, values);
                    sqliteDatabase.close();
                    Temp.setText("");
                    time.setText("");
                    time2.setText("");
                }
                /*
                        String sql="insert into tb_Temp1(Temper,time) values("+Temp.getText().toString()+","+time.getText().toString()+")";
                        sqliteDatabase.execSQL(sql);
                Cursor c = sqliteDatabase.rawQuery("select * from tb_Temp where Temper=?",new String[]{"36.352"});
                c.moveToNext();
                Toast.makeText(MainActivity.this, c.getString(1), Toast.LENGTH_SHORT).show();
*/
            }
        });
        lookbutton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent=new Intent(MainActivity.this,Main2Activity.class);
                startActivity(intent);
            }
        });
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        if(sqLhelper!=null) {
            sqLhelper.close();
        }
    }
}

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:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingLeft="100dp"
    android:paddingTop="200dp"
    android:background="@drawable/by"
    tools:context=".MainActivity"
    >
        <EditText
            android:id="@+id/Temp"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:ems="10"
            android:hint="温度:(例如36.5）"
            android:importantForAutofill="no" />
        <EditText
            android:id="@+id/time"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:ems="10"
            android:layout_below="@+id/Temp"
            android:hint="选择日期"
            />
        <EditText
            android:id="@+id/time2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:ems="10"
            android:layout_below="@+id/time"
            android:hint="选择时间"
            />
        <TextView
            android:id="@+id/addButton"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_below="@+id/time2"
            android:paddingTop="10dp"
            android:textSize="20dp"
            android:layout_centerHorizontal="true"
            android:hint="提交" />
        <TextView
            android:id="@+id/lookButton"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_below="@+id/addButton"
            android:paddingTop="10dp"
            android:textSize="20dp"
            android:layout_centerHorizontal="true"
            android:hint="查看数据" />

</RelativeLayout>

Main2Activity:

package com.example.temperatureapp;

import androidx.annotation.ColorRes;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.ActionBar;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.NavUtils;
import androidx.core.view.MenuItemCompat;
import androidx.fragment.app.Fragment;

import android.annotation.SuppressLint;
import android.content.DialogInterface;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.graphics.Color;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.Gravity;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.SearchView;
import android.widget.TextView;
import android.widget.Toast;

public class Main2Activity extends AppCompatActivity {
    private  SQLhelper sqLhelper;
    private SQLiteDatabase sqLiteDatabase;
    Cursor c=null;
    private  String TEMP=null;
    @SuppressLint("RestrictedApi")
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == 0x11 && resultCode == 0x11) {
            Bundle bundle = data.getExtras();
            String time = bundle.getString("time");
            LinearLayout linearLayout=findViewById(R.id.linear1);
            linearLayout.removeAllViews();
            setview(time);
        }
    }
    @SuppressLint("RestrictedApi")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);
        ActionBar actionBar=getSupportActionBar();
        if (NavUtils.getParentActivityName(Main2Activity.this) != null) {
            actionBar.setDisplayShowTitleEnabled(false);
            actionBar.setDefaultDisplayHomeAsUpEnabled(true);
        }
        setview();
    }
    public void setview()
    {
        String TEMP=null;
        final LinearLayout linearLayout=findViewById(R.id.linear1);
        sqLhelper = new SQLhelper(Main2Activity.this, "Temperature", null, 1);
        sqLiteDatabase = sqLhelper.getReadableDatabase();
        c = sqLiteDatabase.rawQuery("select * from temperature order by Time desc", null);
        if(c.moveToNext()) {
            c.moveToFirst();
            do {
                TEMP= "温度:" + c.getString(c.getColumnIndex("Temper")) + "℃" + "
" + "时间:" + c.getString(c.getColumnIndex("Time"))+","+ c.getString(c.getColumnIndex("Time2"));
                final TextView textView = new TextView(this);
                textView.setText(TEMP);
                textView.setTextSize(30);
                textView.setPadding(0, 0, 0, 10);
                LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
                textView.setLayoutParams(params);
                linearLayout.addView(textView);
                TextView textView1 = new TextView(this);
                textView1.setText("删除");
                textView1.setTextSize(20);
                textView1.setPadding(0, 0, 0, 10);
                params = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
                textView1.setLayoutParams(params);
                textView1.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        delete(textView.getText().toString().split("\,")[1], linearLayout);
                    }
                });
                linearLayout.addView(textView1);
            } while (c.moveToNext());
        }else{
            final TextView textView = new TextView(this);
            textView.setText("目前没有添加体温记录!");
            textView.setTextColor(0xffff0000);
            textView.setTextSize(19);
            textView.setPadding(0, 0, 0, 10);
            LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
            textView.setLayoutParams(params);
            linearLayout.addView(textView);
        }
        }
    public void setview(String a)
    {
        final LinearLayout linearLayout=findViewById(R.id.linear1);
        TextView text = new TextView(this);
        text.setText("搜索结果：");
        text.setTextSize(20);
        text.setPadding(0, 0, 0, 10);
        LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
        text.setLayoutParams(params);
        linearLayout.addView(text);
        sqLhelper = new SQLhelper(Main2Activity.this, "Temperature", null, 1);
        sqLiteDatabase = sqLhelper.getReadableDatabase();
        c = sqLiteDatabase.rawQuery("select * from temperature where Time='"+a+"' order by Time desc",null);
        if(c.moveToNext()) {
            c.moveToFirst();
            do {
                TEMP= "温度:" + c.getString(c.getColumnIndex("Temper")) + "℃" + "
" + "时间:" + c.getString(c.getColumnIndex("Time"))+","+ c.getString(c.getColumnIndex("Time2"));
                final TextView textView = new TextView(this);
                textView.setText(TEMP);
                textView.setTextSize(30);
                textView.setPadding(0, 0, 0, 10);
                LinearLayout.LayoutParams param = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
                textView.setLayoutParams(param);
                linearLayout.addView(textView);
                TextView textView1 = new TextView(this);
                textView1.setText("删除");
                textView1.setTextSize(20);
                textView1.setPadding(0, 0, 0, 10);
                params = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
                textView1.setLayoutParams(params);
                textView1.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        delete(textView.getText().toString().split("\,")[1], linearLayout);
                    }
                });
                linearLayout.addView(textView1);
            } while (c.moveToNext());
        }else{
            final TextView textView = new TextView(this);
            textView.setText("目前没有添加体温记录!");
            textView.setTextColor(0xffff0000);
            textView.setTextSize(19);
            textView.setPadding(0, 0, 0, 10);
            LinearLayout.LayoutParams p = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
            textView.setLayoutParams(p);
            linearLayout.addView(textView);
        }
    }
    public  void delete(final String a, LinearLayout b)
    {
        AlertDialog alertDialog=new AlertDialog.Builder(Main2Activity.this).create();
        alertDialog.setTitle("提示");
        alertDialog.setMessage("是否真的删除数据？");
        alertDialog.setButton(DialogInterface.BUTTON_POSITIVE, "是", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                sqLhelper.getWritableDatabase().execSQL("delete from temperature where Time2='"+a+"'");
                Toast.makeText(Main2Activity.this,"删除成功",Toast.LENGTH_SHORT).show();
                finish();
                Intent intent = new Intent(Main2Activity.this, Main2Activity.class);
                startActivity(intent);
            }
        });
        alertDialog.setButton(DialogInterface.BUTTON_NEGATIVE, "否", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {

            }
        });
        alertDialog.show();
    }
    public  void deleteall()
    {
        LinearLayout b=findViewById(R.id.linear1);
        AlertDialog alertDialog=new AlertDialog.Builder(Main2Activity.this).create();
        alertDialog.setTitle("提示");
        alertDialog.setMessage("是否真的删除数据？");
        alertDialog.setButton(DialogInterface.BUTTON_POSITIVE, "是", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                sqLhelper.getWritableDatabase().execSQL("delete from temperature");
//                sqLhelper.getWritableDatabase().execSQL("update sqlite_sequence SET seq = 0 where name ='temperature'");
                Toast.makeText(Main2Activity.this,"清空成功",Toast.LENGTH_SHORT).show();
                finish();
                Intent intent = new Intent(Main2Activity.this, Main2Activity.class);
                startActivity(intent);
            }
        });
        alertDialog.setButton(DialogInterface.BUTTON_NEGATIVE, "否", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {

            }
        });
        alertDialog.show();
    }

    @Override
    public boolean onCreatePanelMenu(int featureId, Menu menu) {
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.menu, menu);
        MenuItem menuItem = menu.findItem(R.id.search);
        MenuItem deleteItem = menu.findItem(R.id.delete);
        menuItem.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
            @Override
            public boolean onMenuItemClick(MenuItem item) {
                Intent intent=new Intent(Main2Activity.this,getData_activity.class);
                startActivityForResult(intent,0x11);
                return false;
            }
        });
        deleteItem.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
            @Override
            public boolean onMenuItemClick(MenuItem item) {
                deleteall();
                return false;
            }
        });
        return super.onCreatePanelMenu(featureId, menu);
    }

    //    @Override
//    public boolean onCreatePanelMenu(int featureId, Menu menu) {
//        getMenuInflater().inflate(R.menu.menu,menu);
//                //获取搜索的菜单组件
//                MenuItem menuItem = menu.findItem(R.id.search);
//                 SearchView searchView = (SearchView) MenuItemCompat.getActionView(menuItem);
//                 //设置搜索的事件
//                 searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
//                     @Override
//                     public boolean onQueryTextSubmit(String query) {
//                         Toast t = Toast.makeText(Main2Activity.this, query, Toast.LENGTH_SHORT);
//                         t.setGravity(Gravity.TOP, 0, 0);
//                         t.show();
//                         return false;
//                     }
//                     @Override
//                     public boolean onQueryTextChange(String newText) {
//                         return false;
//                     }
//                 });
//        return super.onCreateOptionsMenu(menu);
//    }
    @Override
    protected void onDestroy() {
        super.onDestroy();
        if(sqLhelper!=null) {
            sqLiteDatabase.close();
            sqLhelper.close();
        }
    }
}

activity_main2.xml:

<?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:background="@drawable/by"
    android:orientation="vertical"
    tools:context=".Main2Activity">
    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        <LinearLayout
            android:orientation="vertical"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:id="@+id/linear1"
            >
        </LinearLayout>
    </ScrollView>
</LinearLayout>

　　SQLhelper:

package com.example.temperatureapp;

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;

import androidx.annotation.Nullable;

public class SQLhelper extends SQLiteOpenHelper {
    final String ADDSQL="create table temperature (Temper varchar(20),Time varchar(20),Time2 varchar(20))";
    public SQLhelper(@Nullable Context context, @Nullable String name, @Nullable SQLiteDatabase.CursorFactory factory, int version) {
        super(context, name, null, version);
    }
    @Override
    public void onCreate(SQLiteDatabase db) {
        db.execSQL(ADDSQL);
    }
    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        Log.i("体温","--版本更新"+oldVersion+"-->"+newVersion);
        String sql = "alter table tb_Temp1 add sex varchar(8)";
        db.execSQL(sql);
    }
}

getData_Activity:

package com.example.temperatureapp;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.DatePicker;

import androidx.annotation.Nullable;

import java.util.Calendar;

public class getData_activity extends Activity {
    public int year,month,day;
    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.gettime_f);
        Button button=findViewById(R.id.ok);
        DatePicker datePicker=findViewById(R.id.Dpicker);
        Calendar calendar=Calendar.getInstance();
        year=calendar.get(Calendar.YEAR);
        month=calendar.get(Calendar.MONTH);
        day=calendar.get(Calendar.DAY_OF_MONTH);
        datePicker.init(year, month, day, new DatePicker.OnDateChangedListener() {
            @Override
            public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
                getData_activity .this.year=year;
                getData_activity .this.month=monthOfYear;
                getData_activity .this.day=dayOfMonth;

            }
        });
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent=getIntent();
                String date=getData_activity.this.year+"年"+getData_activity.this.month+"月"+getData_activity.this.day+"日";
                Bundle bundle=new Bundle();
                bundle.putString("time",date);
                intent.putExtras(bundle);
                setResult(0x11,intent);
                finish();
            }
        });
    }
}

activity_get_data.xml:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center"
    android:background="#BEA4A4"
    >
    <DatePicker
    android:id="@+id/Dpicker"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
        />
    <Button
        android:id="@+id/ok"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/Dpicker"
        android:layout_centerHorizontal="true"
        android:text="确定"
        android:background="#E4B1B1"/>
</RelativeLayout>

getTime_Activity:

package com.example.temperatureapp;

import androidx.appcompat.app.AppCompatActivity;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TimePicker;

public class getTime_Activity extends Activity {
    private int h,m;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_get_time_);
        Button button=findViewById(R.id.Tok);
        TimePicker timePicker=findViewById(R.id.TDpicker);
        timePicker.setIs24HourView(true);
        timePicker.setOnTimeChangedListener(new TimePicker.OnTimeChangedListener() {
            @Override
            public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {
                getTime_Activity.this.h=hourOfDay;
                getTime_Activity.this.m=minute;
            }
        });
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent=getIntent();
                String date=getTime_Activity.this.h+"时"+getTime_Activity.this.m+"分";
                Bundle bundle=new Bundle();
                bundle.putString("time",date);
                intent.putExtras(bundle);
                setResult(0x22,intent);
                finish();
            }
        });

    }
}

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:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center"
    android:background="#BEA4A4"
    tools:context=".getTime_Activity">
    <TimePicker
        android:id="@+id/TDpicker"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        />
    <Button
        android:id="@+id/Tok"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/TDpicker"
        android:layout_centerHorizontal="true"
        android:text="确定"
        android:background="#E4B1B1"/>
</RelativeLayout>

munu文件：

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">
        <item
            android:id="@+id/search"
            app:actionViewClass="android.support.v7.widget.SearchView"
            android:icon="@android:drawable/ic_menu_search"
            android:orderInCategory="100"
            android:title="搜索日期"
            app:showAsAction="never" />
        <item
            android:id="@+id/delete"
            app:actionViewClass="android.support.v7.widget.SearchView"
            android:icon="@android:drawable/ic_menu_search"
            android:orderInCategory="100"
            android:title="删除全部"
            app:showAsAction="never" />
</menu>