一、项目结构
二、源码
1.数据层
db+dao+bean
package com.example.tem.db;
import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import androidx.annotation.Nullable;
public class DBHelper extends SQLiteOpenHelper{
public DBHelper(@Nullable Context context){
super(context,"temperature",null,3);//库名“temperature”
}
@Override
public void onCreate(SQLiteDatabase db){
db.execSQL("create table info(id INTEGER PRIMARY KEY AUTOINCREMENT,name VARCHAR(50) NOT NULL,sex VARCHAR(20) NOT NULL,date VARCHAR(50) NOT NULL,heat VARCHAR(20) NOT NULL,place CARCHAR(500) NOT NULL)");
//表名“info”
}
@Override
public void onUpgrade(SQLiteDatabase db,int oldVersion,int newVersion){
}
}
DBHelper.class
package com.example.tem.dao;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import com.example.tem.db.DBHelper;
import com.example.tem.bean.TemBean;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
public class TemDao {
private DBHelper helper;
public TemDao(Context context){
helper = new DBHelper(context);
}
public boolean insert(TemBean temBean){//增
SQLiteDatabase db = helper.getReadableDatabase();
Date date0 = new Date();
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");
String date = simpleDateFormat.format(date0);
ContentValues values = new ContentValues();
values.put("name",temBean.getName());
values.put("sex",temBean.getSex());
values.put("date",date);
values.put("heat",temBean.getHeat());
values.put("place",temBean.getPlace());
long insert = db.insert("info",null,values);
//System.out.println(temBean.getPlace());
return insert>0;
}
public boolean update(TemBean temBean){//改
SQLiteDatabase db = helper.getReadableDatabase();
ContentValues values = new ContentValues();
values.put("name",temBean.getName());
values.put("sex",temBean.getSex());
values.put("date",temBean.getDate());
values.put("heat",temBean.getHeat());
values.put("place",temBean.getPlace());
long update = db.update("info",values,"id=?",new String\[\]{temBean.getId()+""});
System.out.println(temBean.getId());
return update>0;
}
public List<TemBean> queryAll(){//查
List<TemBean> list = new ArrayList<>();
TemBean bean = null;
SQLiteDatabase db = helper.getReadableDatabase();
Cursor c = db.query("info",null,null,null,null,null,null);
if(c != null && c.getCount()>0){
list = new ArrayList<>();
while(c.moveToNext()){
bean = new TemBean();
bean.setId(c.getInt(c.getColumnIndex("id")));
bean.setName(c.getString(c.getColumnIndex("name")));
bean.setSex(c.getString(c.getColumnIndex("sex")));
bean.setDate(c.getString(c.getColumnIndex("date")));
bean.setHeat(c.getString(c.getColumnIndex("heat")));
bean.setPlace(c.getString(c.getColumnIndex("place")));
list.add(bean);
}
}
return list;
}
}
TemDao.class
package com.example.tem.bean;
import java.io.Serializable;
public class TemBean implements Serializable{
public Integer id;//设置id便于对数据进行操作
public String name;
public String sex;
public String date;
public String heat;
public String place;
public TemBean() {
}
@Override
public String toString() {
return "TemBean{" +
"id='" + id +
",name='" + name + '\\'' +
",sex='" + sex + '\\'' +
", date='" + date + '\\'' +
", heat='" + heat + '\\'' +
", place='" + place + '\\'' +
'}';
}
public Integer getId(){
return id;
}
public void setId(Integer id){
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getSex(){
return sex;
}
public void setSex(String sex){
this.sex = sex;
}
public String getDate() {
return date;
}
public void setDate(String date) {
this.date = date;
}
public String getHeat() {
return heat;
}
public void setHeat(String heat) {
this.heat = heat;
}
public String getPlace() {
return place;
}
public void setPlace(String place) {
this.place = place;
}
public TemBean(Integer id,String name,String sex,String date,String heat,String place){
this.id = id;
this.name = name;
this.sex = sex;
this.date = date;
this.heat = heat;
this.place = place;
}
}
TemBean.class
2.适配器
package com.example.tem.adapter;
import android.content.Context;
import android.content.Intent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
import com.example.tem.MainActivity;
import com.example.tem.R;
import com.example.tem.bean.TemBean;
import java.util.List;
public class Temp extends RecyclerView.Adapter
private Context mContext;
private List<TemBean> list;
public Temp (Context context, List<TemBean> list){
this.mContext=context;
this.list=list;
}
public void setList(List<TemBean> list) {
this.list=list;
}
@NonNull
@Override
public TempViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
TempViewHolder holder=new TempViewHolder(LayoutInflater.from(mContext).inflate(R.layout.item\_view,parent,false));
return holder;
}
@Override
public void onBindViewHolder(@NonNull TempViewHolder holder, int position) {
TemBean temBean=list.get(position);
holder.tv\_name.setText("姓名:"+temBean.getName());
holder.tv\_date.setText(temBean.getDate());
holder.tv\_sex.setText("性别:"+temBean.getSex());
holder.tv\_heat.setText(temBean.getHeat());
holder.tv\_place.setText(temBean.getPlace());
holder.btn\_edit.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent=new Intent();
intent.setClass(mContext, MainActivity.class);
intent.putExtra("edititem",temBean);
mContext.startActivity(intent);
}
});
}
@Override
public int getItemCount() {
return list==null?0:list.size();
}
//绑定单元格空间
class TempViewHolder extends RecyclerView.ViewHolder{
TextView tv\_name;
TextView tv\_date;
TextView tv\_heat;
TextView tv\_sex;
TextView tv\_place;
Button btn\_edit;
public TempViewHolder(@NonNull View itemView) {
super(itemView);
tv\_name=itemView.findViewById(R.id.tv\_name);
tv\_date=itemView.findViewById(R.id.tv\_date);
tv\_sex=itemView.findViewById(R.id.tv\_sex);
tv\_place=itemView.findViewById(R.id.tv\_place);
tv\_heat=itemView.findViewById(R.id.tv\_heat);
btn\_edit=itemView.findViewById(R.id.btn\_edit);
}
}
}
adapter
3.百度定位相关
package com.example.tem.location;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import com.baidu.location.BDAbstractLocationListener;
import com.baidu.location.BDLocation;
import com.baidu.location.Poi;
import com.example.tem.MainActivity;
import com.example.tem.R;
import com.example.tem.location.LocationService;
public class LocationActivity extends MainActivity {
private LocationService locationService;
private TextView mTextView;
private Button button;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity\_location);
mTextView = findViewById(R.id.textview);
button = findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if (button.getText().toString().equals("添加")) {
locationService.start();
} else {
locationService.stop();
button.setText("自动定位");
mTextView.setText("");
}
}
});
locationService = new LocationService(this);
// 多个activity
// locationService = ((App) getApplication()).locationService;
locationService.registerListener(mListener);
locationService.setLocationOption(locationService.getDefaultLocationClientOption());
}
@Override
protected void onDestroy() {
super.onDestroy();
locationService.unregisterListener(mListener); //注销掉监听
locationService.stop(); //停止定位服务
}
/\*\*\*\*\*
\*
\* 定位结果回调,重写onReceiveLocation方法,可以直接拷贝如下代码到自己工程中修改
\*
\*/
private BDAbstractLocationListener mListener = new BDAbstractLocationListener() {
@Override
public void onReceiveLocation(BDLocation location) {
// TODO Auto-generated method stub
if (null != location && location.getLocType() != BDLocation.TypeServerError) {
//button.setText("停止定位");
StringBuilder sb = new StringBuilder(256);
// sb.append("time : ");
/**
* 时间也可以使用systemClock.elapsedRealtime()方法 获取的是自从开机以来,每次回调的时间;
* location.getTime() 是指服务端出本次结果的时间,如果位置不发生变化,则时间不变
*/
// sb.append(location.getTime());
sb.append("\nlocType : ");// 定位类型
sb.append(location.getLocType());
sb.append("\nlocType description : ");// *****对应的定位类型说明*****
sb.append(location.getLocTypeDescription());
// sb.append("\nlatitude : ");// 纬度
// sb.append(location.getLatitude());
// sb.append("\nlontitude : ");// 经度
// sb.append(location.getLongitude());
// sb.append("\nradius : ");// 半径
// sb.append(location.getRadius());
// sb.append("\nCountryCode : ");// 国家码
// sb.append(location.getCountryCode());
// sb.append("\nCountry : ");// 国家名称
// sb.append(location.getCountry());
// sb.append("\ncitycode : ");// 城市编码
// sb.append(location.getCityCode());
// sb.append("\ncity : ");// 城市
// sb.append(location.getCity());
// sb.append("\nDistrict : ");// 区
// sb.append(location.getDistrict());
// sb.append("\nStreet : ");// 街道
sb.append(location.getStreet());
sb.append("\naddr : ");// 地址信息
sb.append(location.getAddrStr());
// sb.append("\nUserIndoorState: ");// *****返回用户室内外判断结果*****
// sb.append(location.getUserIndoorState());
// sb.append("\nDirection(not all devices have value): ");
// sb.append(location.getDirection());// 方向
sb.append("\nlocationdescribe: ");
sb.append(location.getLocationDescribe());// 位置语义化信息
// sb.append("\nPoi: ");// POI信息
// if (location.getPoiList() != null && !location.getPoiList().isEmpty()) {
// for (int i = 0; i < location.getPoiList().size(); i++) {
// Poi poi = (Poi) location.getPoiList().get(i);
// sb.append(poi.getName() + ";");
// }
// }
if (location.getLocType() == BDLocation.TypeGpsLocation) {// GPS定位结果
sb.append("\nspeed : ");
sb.append(location.getSpeed());// 速度 单位:km/h
sb.append("\nsatellite : ");
sb.append(location.getSatelliteNumber());// 卫星数目
sb.append("\nheight : ");
sb.append(location.getAltitude());// 海拔高度 单位:米
sb.append("\ngps status : ");
sb.append(location.getGpsAccuracyStatus());// *****gps质量判断*****
sb.append("\ndescribe : ");
sb.append("gps定位成功");
} else if (location.getLocType() == BDLocation.TypeNetWorkLocation) {// 网络定位结果
// 运营商信息
if (location.hasAltitude()) {// *****如果有海拔高度*****
sb.append("\nheight : ");
sb.append(location.getAltitude());// 单位:米
}
sb.append("\noperationers : ");// 运营商信息
sb.append(location.getOperators());
sb.append("\ndescribe : ");
sb.append("网络定位成功");
} else if (location.getLocType() == BDLocation.TypeOffLineLocation) {// 离线定位结果
sb.append("\ndescribe : ");
sb.append("离线定位成功,离线定位结果也是有效的");
} else if (location.getLocType() == BDLocation.TypeServerError) {
sb.append("\ndescribe : ");
sb.append("服务端网络定位失败,可以反馈IMEI号和大体定位时间到loc-bugs@baidu.com,会有人追查原因");
} else if (location.getLocType() == BDLocation.TypeNetWorkException) {
sb.append("\ndescribe : ");
sb.append("网络不同导致定位失败,请检查网络是否通畅");
} else if (location.getLocType() == BDLocation.TypeCriteriaException) {
sb.append("\ndescribe : ");
sb.append("无法获取有效定位依据导致定位失败,一般是由于手机的原因,处于飞行模式下一般会造成这种结果,可以试着重启手机");
}
logMsg(sb.toString());
}
}
};
/\*\*
\* 显示请求字符串
\*/
public void logMsg(final String str) {
try {
new Thread(new Runnable() {
@Override
public void run() {
mTextView.post(new Runnable() {
@Override
public void run() {
mTextView.setText(str);
}
});
}
}).start();
} catch (Exception e) {
e.printStackTrace();
}
}
}
LocationActivity
package com.example.tem.location;
import android.content.Context;
import com.baidu.location.BDAbstractLocationListener;
import com.baidu.location.LocationClient;
import com.baidu.location.LocationClientOption;
import com.baidu.location.LocationClientOption.LocationMode;
public class LocationService {
private LocationClient client = null;
private LocationClientOption mOption,DIYoption;
private Object objLock = new Object();
public LocationService(Context locationContext){
synchronized (objLock) {
if(client == null){
client = new LocationClient(locationContext);
client.setLocOption(getDefaultLocationClientOption());
}
}
}
// 注册
public boolean registerListener(BDAbstractLocationListener listener){
boolean isSuccess = false;
if(listener != null){
client.registerLocationListener(listener);
isSuccess = true;
}
return isSuccess;
}
// 注销
public void unregisterListener(BDAbstractLocationListener listener){
if(listener != null){
client.unRegisterLocationListener(listener);
}
}
//设置配置
public boolean setLocationOption(LocationClientOption option){
boolean isSuccess = false;
if(option != null){
if(client.isStarted())
client.stop();
DIYoption = option;
client.setLocOption(option);
}
return isSuccess;
}
//默认Option设置
public LocationClientOption getDefaultLocationClientOption(){
if(mOption == null){
mOption = new LocationClientOption();
mOption.setLocationMode(LocationMode.Hight\_Accuracy);//可选,默认高精度,设置定位模式,高精度,低功耗,仅设备
mOption.setCoorType("bd09ll");//可选,默认gcj02,设置返回的定位结果坐标系,如果配合百度地图使用,建议设置为bd09ll;
mOption.setScanSpan(3000);//可选,默认0,即仅定位一次,设置发起连续定位请求的间隔需要大于等于1000ms才是有效的
mOption.setIsNeedAddress(true);//可选,设置是否需要地址信息,默认不需要
mOption.setIsNeedLocationDescribe(true);//可选,设置是否需要地址描述
mOption.setNeedDeviceDirect(false);//可选,设置是否需要设备方向结果
mOption.setLocationNotify(false);//可选,默认false,设置是否当gps有效时按照1S1次频率输出GPS结果
mOption.setIgnoreKillProcess(true);//可选,默认true,定位SDK内部是一个SERVICE,并放到了独立进程,设置是否在stop的时候杀死这个进程,默认不杀死
mOption.setIsNeedLocationDescribe(true);//可选,默认false,设置是否需要位置语义化结果,可以在BDLocation.getLocationDescribe里得到,结果类似于“在北京天安门附近”
mOption.setIsNeedLocationPoiList(true);//可选,默认false,设置是否需要POI结果,可以在BDLocation.getPoiList里得到
mOption.SetIgnoreCacheException(false);//可选,默认false,设置是否收集CRASH信息,默认收集
mOption.setOpenGps(true);//可选,默认false,设置是否开启Gps定位
mOption.setIsNeedAltitude(false);//可选,默认false,设置定位时是否需要海拔信息,默认不需要,除基础定位版本都可用
}
return mOption;
}
//自定义Option设置
public LocationClientOption getOption(){
if(DIYoption == null) {
DIYoption = new LocationClientOption();
}
return DIYoption;
}
public void start(){
synchronized (objLock) {
if(client != null && !client.isStarted()){
client.start();
}
}
}
public void stop(){
synchronized (objLock) {
if(client != null && client.isStarted()){
client.stop();
}
}
}
public boolean isStart() {
return client.isStarted();
}
public boolean requestHotSpotState(){
return client.requestHotSpotState();
}
}
LocationService
4.布局
recycler_item.xml
<Button
android:id="@+id/btn\_add"
android:layout\_width="wrap\_content"
android:layout\_height="wrap\_content"
android:layout\_marginTop="1dp"
android:layout\_marginEnd="3dp"
android:layout\_marginRight="3dp"
android:text="添加"
android:background="@drawable/btn\_right"
app:layout\_constraintEnd\_toEndOf="parent"
app:layout\_constraintTop\_toTopOf="parent" />
<Button
android:id="@+id/btn\_back"
android:layout\_width="wrap\_content"
android:layout\_height="wrap\_content"
android:layout\_marginStart="3dp"
android:layout\_marginLeft="3dp"
android:layout\_marginTop="1dp"
android:text="退出"
android:background="@drawable/btn\_left"
app:layout\_constraintStart\_toStartOf="parent"
app:layout\_constraintTop\_toTopOf="parent" />
<TextView
android:id="@+id/textView"
android:layout\_width="wrap\_content"
android:layout\_height="wrap\_content"
android:layout\_marginStart="85dp"
android:layout\_marginLeft="85dp"
android:layout\_marginTop="6dp"
android:layout\_marginEnd="85dp"
android:layout\_marginRight="85dp"
android:text="体温统计"
android:textSize="30dp"
android:textColor="#F44336"
app:layout\_constraintEnd\_toStartOf="@+id/btn\_add"
app:layout\_constraintStart\_toEndOf="@+id/btn\_back"
app:layout\_constraintTop\_toTopOf="parent" />
<androidx.constraintlayout.widget.Guideline
android:id="@+id/guideline"
android:layout\_width="wrap\_content"
android:layout\_height="wrap\_content"
android:orientation="horizontal"
app:layout\_constraintGuide\_begin="56dp" />
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/rec"
android:layout\_width="match\_parent"
android:layout\_height="match\_parent"
android:layout\_marginTop="60dp"
app:layout\_constraintTop\_toTopOf="parent"
tools:layout\_editor\_absoluteX="17dp" />
activity_index.xml
activity_location.xml
<LinearLayout
android:id="@+id/LinearLayout1"
android:layout\_width="match\_parent"
android:layout\_height="wrap\_content"
android:layout\_above="@+id/LinearLayout2"
android:layout\_marginBottom="48dp"
android:gravity="center"
android:orientation="horizontal">
<TextView
android:layout\_width="wrap\_content"
android:layout\_height="wrap\_content"
android:text="日期:"
android:textColor="@color/black"
android:textSize="20sp" />
<TextView
android:id="@+id/tv\_date"
android:layout\_width="220dp"
android:layout\_height="wrap\_content"
android:textSize="20sp"
android:textColor="@color/black"
/>
</LinearLayout>
<LinearLayout
android:id="@+id/LinearLayout2"
android:layout\_width="match\_parent"
android:layout\_height="wrap\_content"
android:layout\_above="@+id/LinearLayout3"
android:layout\_marginBottom="48dp"
android:gravity="center"
android:orientation="horizontal">
<TextView
android:layout\_width="wrap\_content"
android:layout\_height="wrap\_content"
android:text="姓名:"
android:textColor="@color/black"
android:textSize="20sp" />
<EditText
android:id="@+id/et\_name"
android:layout\_width="220dp"
android:layout\_height="wrap\_content"
android:hint="请输入姓名"
android:textColorHint="#D2E7F8" />
</LinearLayout>
<LinearLayout
android:id="@+id/LinearLayout3"
android:layout\_width="match\_parent"
android:layout\_height="30dp"
android:layout\_above="@+id/LinearLayout4"
android:layout\_marginBottom="48dp"
android:gravity="center">
<TextView
android:layout\_width="wrap\_content"
android:layout\_height="wrap\_content"
android:text="性别:"
android:textColor="@color/black"
android:textSize="20sp" />
<RadioGroup
android:id="@+id/rg\_sex"
android:layout\_width="220dp"
android:layout\_height="wrap\_content"
android:orientation="horizontal">
<RadioButton
android:id="@+id/rb\_boy"
android:layout\_width="88dp"
android:layout\_height="wrap\_content"
android:text="男" />
<RadioButton
android:id="@+id/rb\_girl"
android:layout\_width="wrap\_content"
android:layout\_height="wrap\_content"
android:text="女" />
</RadioGroup>
</LinearLayout>
<LinearLayout
android:id="@+id/LinearLayout4"
android:layout\_width="match\_parent"
android:layout\_height="wrap\_content"
android:layout\_above="@+id/LinearLayout5"
android:layout\_marginBottom="48dp"
android:gravity="center"
android:orientation="horizontal">
<TextView
android:layout\_width="wrap\_content"
android:layout\_height="wrap\_content"
android:text="体温:"
android:textColor="@color/black"
android:textSize="20sp" />
<EditText
android:id="@+id/et\_heat"
android:layout\_width="220dp"
android:layout\_height="wrap\_content"
android:hint="请输入当前体温"
android:textColorHint="#D2E7F8"/>
</LinearLayout>
<LinearLayout
android:id="@+id/LinearLayout5"
android:layout\_width="match\_parent"
android:layout\_height="wrap\_content"
android:layout\_above="@+id/LinearLayout6"
android:layout\_marginBottom="48dp"
android:gravity="center"
android:orientation="horizontal">
<TextView
android:layout\_width="wrap\_content"
android:layout\_height="wrap\_content"
android:text="地点:"
android:textColor="@color/black"
android:textSize="20sp" />
<EditText
android:id="@+id/et\_place"
android:layout\_width="220dp"
android:layout\_height="wrap\_content"
android:hint="手动输入或点击自动定位"
android:textColorHint="#D2E7F8"/>
</LinearLayout>
<LinearLayout
android:id="@+id/LinearLayout8"
android:layout\_width="match\_parent"
android:layout\_height="wrap\_content"
android:layout\_above="@+id/LinearLayout6"
android:layout\_marginBottom="10dp"
android:gravity="center"
android:orientation="horizontal">
<Button
android:id="@+id/btn\_adr"
android:layout\_width="wrap\_content"
android:layout\_height="wrap\_content"
android:layout\_alignParentRight="true"
android:text="获取定位" />
</LinearLayout>
<LinearLayout
android:id="@+id/LinearLayout6"
android:layout\_width="match\_parent"
android:layout\_height="wrap\_content"
android:layout\_alignParentBottom="true"
android:layout\_marginBottom="80dp"
android:gravity="center">
<Button
android:id="@+id/btn\_submit"
android:layout\_width="wrap\_content"
android:layout\_height="wrap\_content"
android:text="完成" />
</LinearLayout>
<LinearLayout
android:id="@+id/LinearLayout7"
android:layout\_width="match\_parent"
android:layout\_height="wrap\_content"
android:layout\_above="@+id/LinearLayout1"
android:layout\_marginBottom="50dp"
android:gravity="center"
android:orientation="vertical">
<TextView
android:layout\_width="wrap\_content"
android:layout\_height="wrap\_content"
android:text="体温填报"
android:textStyle="bold"
android:textColor="@color/black"
android:textSize="20sp" />
</LinearLayout>
<Button
android:id="@+id/btn\_back"
android:layout\_width="wrap\_content"
android:layout\_height="wrap\_content"
android:text="返回" />
activity_main.xml
activity_out.xml
<LinearLayout
android:layout\_width="match\_parent"
android:layout\_height="wrap\_content"
android:orientation="horizontal">
<TextView
android:id="@+id/tv\_name"
android:layout\_width="0dp"
android:layout\_height="wrap\_content"
android:layout\_weight="1"
android:textStyle="bold"
android:text="姓名:" />
<TextView
android:id="@+id/tv\_sex"
android:layout\_width="0dp"
android:layout\_height="wrap\_content"
android:layout\_weight="1"
android:textStyle="bold"
android:text="性别" />
<TextView
android:id="@+id/tv\_heat"
android:layout\_width="0dp"
android:layout\_height="wrap\_content"
android:layout\_weight="1"
android:textStyle="bold"
android:text="体温" />
</LinearLayout>
<TextView
android:id="@+id/tv\_place"
android:layout\_width="300dp"
android:layout\_height="wrap\_content"
android:layout\_weight="1"
android:textStyle="bold"
android:text="地点" />
</LinearLayout>
<Button
android:id="@+id/btn\_edit"
android:layout\_width="wrap\_content"
android:layout\_height="wrap\_content"
android:text="编辑" />
item_view.xml
效果图:
遇到的几个问题:
1.在gradle的时候没有报错,但是调试就会闪退
(1)如果是打开软件就闪退,可能是初始布局有问题
(2)如果是点击某个按钮有问题,可能是跟按钮触发相应的语句有问题
2.与数据库有关的问题
(1)数据库为null,这个在gradle也不会报错,而且as的编辑器也没有报错
通过仔细检查,发现bean里写错了
可以发现虽然没有报错,但是‘sex’是灰色的,也就是没有用上,以后会注意这种问题,不一定标红线才是报错
(2)使用正常,但是name始终显示的是date
这个花了好久才发现在哪出了问题
name、date、sex这三个位置反了
因为前一个问题写了,sex获取有问题,这导致了sex为null。位置写反了,这导致了name获取了date,而date是自动获取不是手动输入的,最终导致了姓名一栏始终显示的是日期,而日期却还是正确日期
这个地方几个错误叠加,反而没看出来错误的本质,我之前一直以为是name一栏写成了date,检查后发现setText()写的并没有问题,
花了好久才发现原来是数据库这边位置反了。
GitHub上完整结构:https://github.com/Arisf0617/Android
有几个文件上传不进去,不知道是不是我的方法有问题
手机扫一扫
移动阅读更方便
你可能感兴趣的文章