今天完成了测量自己身体健康指数BMI的小功能，代码和截图如下：
package com.home.fragment;
import android.content.DialogInterface;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AlertDialog;
import androidx.fragment.app.Fragment;
import com.DBOpenMessageUser.DBOpenMessageUserlocation;
import com.example.keeprunning1.R;
import com.user.User;
import com.user.UserOperator;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
public class MapChildThreeFragment extends Fragment {
private DBOpenMessageUserlocation dbOpenMessage;
private String username;
private TextView distance11,calor11,shiwu11,chronometer,userhealth,userhealth1;
private Double distance=0.0,energy=0.0;
private EditText userheight,userweight;
private long time=0;
private String shiwuneirong;
private String zhishu1="";
private String zhishu2="";
private UserOperator userOperator;
// private Chronometer chronometer = null;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.mapchildthree, container, false);
distance11=(TextView)view.findViewById(R.id.distance11);
calor11=(TextView)view.findViewById(R.id.calor11);
shiwu11=(TextView)view.findViewById(R.id.shiwu11);
chronometer = (TextView)view.findViewById(R.id.time11);
userhealth=(TextView)view.findViewById(R.id.user_health);
userhealth1=(TextView)view.findViewById(R.id.user_health1);
userOperator=new UserOperator(view.getContext());
testRandom2();
init();
User bean = userOperator.isExit(username);
zhishu2=bean.health;
userhealth1.setText(zhishu2);
Health();
return view;
}
private void init()
{
dbOpenMessage = new DBOpenMessageUserlocation(getActivity(), "db_location", null, 1);
Intent intent = getActivity().getIntent();//获取Intent对象
username = intent.getStringExtra("username");
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy年MM月dd日");// HH:mm:ss
Date date1 = new Date(System.currentTimeMillis());
String date=simpleDateFormat.format(date1);
getMessage1(username,date);
DecimalFormat decimalFormat;
decimalFormat = new DecimalFormat("0.00");
chronometer.setText(decimalFormat.format(time/(60000)));
// chronometer.setFormat("00:%s");
// chronometer.setBase(SystemClock.elapsedRealtime()-time);
distance11.setText(decimalFormat.format(distance));
calor11.setText(decimalFormat.format(energy));
if(distance>0.001)
shiwu11.setText(shiwuneirong);
}
private void getMessage1(String username,String date) {
Cursor cursor = dbOpenMessage.gettodayLocation(username,date);
if (cursor != null && cursor.getCount() > 0) {
cursor.moveToFirst();
for (cursor.moveToFirst(); !cursor.isAfterLast();cursor.moveToNext()){
distance+=Double.parseDouble(cursor.getString(cursor.getColumnIndex("distance")));
energy+= Double.parseDouble(cursor.getString(cursor.getColumnIndex("energy")));
time+=Long.parseLong(cursor.getString(cursor.getColumnIndex("time"))) ;
}
}
}
private void testRandom2(){
if(time/(60000)<60){
shiwuneirong="1L水、新鲜水果";
}
else if (time/(60000)>60&&time/(60000)<180){
shiwuneirong="运动饮料、水果干、谷物营养棒、果冻";
}
else{
shiwuneirong="1.5L水、小黄油饼干、甜乳制品、新鲜水果";
}
// Random random=new Random();
// int wen[]={0,0,0,0,0,0,0,0,0,0};
// String wen1[]={"苹果","火龙果","土豆","猕猴桃","圣女果","西蓝花","米饭","香蕉","荔枝","西瓜"};
// int i=0;
// while (i<5) {
// int wen=random.nextInt(9);
// for(int j=0;j<i;j++)
// {
// if(wen[j]==wen[i])
// continue;
// }
//while(i<5) {
// if(wen<4)
// shiwuneirong="苹果、火龙果、猕猴桃";
// else if(wen<7)
// shiwuneirong="圣女果、西蓝花、淀粉类";
// else
// shiwuneirong="香蕉、荔枝、西瓜";
// i++;
//}
// i++;
// }
}
//刷新作用
@Override
public void onResume() {
super.onResume();
distance=0.0;
energy=0.0;
time=0;
shiwuneirong="";
shiwu11.setText("");
testRandom2();
init();
}
@Override
public void onHiddenChanged(boolean hidden) {
// TODO Auto-generated method stub
super.onHiddenChanged(hidden);
distance=0.0;
energy=0.0;
time=0;
shiwuneirong="";
shiwu11.setText("");
testRandom2();
init();
}
private void Health() {
userhealth.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
AlertDialog.Builder builder2 = new AlertDialog.Builder(getView().getContext());
LayoutInflater inflater2 = LayoutInflater.from(getView().getContext());
View viewDialog2 = inflater2.inflate(R.layout.health, null);
userheight = (EditText) viewDialog2.findViewById(R.id.height);
userweight = (EditText) viewDialog2.findViewById(R.id.weight);
builder2.setView(viewDialog2);
builder2.setTitle("身体指数BMI");
builder2.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
final double userheight1 = Double.parseDouble(userheight.getText().toString());
final double userweight1 = Double.parseDouble(userweight.getText().toString());
if(userheight1<=0||userheight1>=2.5){
Toast.makeText(getView().getContext(), "请输入正确的身高", Toast.LENGTH_SHORT).show();
}else if(userweight1<=0||userweight1>=200){
Toast.makeText(getView().getContext(), "请输入正确的体重", Toast.LENGTH_SHORT).show();
}else {
double m = (userweight1/ (userheight1 * userheight1));
DecimalFormat df = new DecimalFormat("0.0");
double zhishu= Double.parseDouble(df.format(m));
if(zhishu< 18.5){
zhishu1=zhishu+"偏瘦";
}else if(18.5<=zhishu && zhishu< 24){
zhishu1=zhishu+"正常";
}else if(24<=zhishu && zhishu< 25){
zhishu1=zhishu+"正常";
}
else if(25<=zhishu && zhishu< 28){
zhishu1=zhishu+"偏胖";
}else if(28<=zhishu && zhishu< 30){
zhishu1=zhishu+"偏胖";
}else {
zhishu1=zhishu+"肥胖";
}
User bean = new User();
bean.setUsername(username);
bean.setHealth(zhishu1);
userOperator.add(bean);
User bean1 = userOperator.isExit(username);
zhishu2=bean1.health;
userhealth1.setText(zhishu2);
}
}
});
builder2.setNegativeButton("取消", null);
builder2.create().show();
}
});
}
}
