Question

问题：当我将应用程序的结果与bmi网站进行比较时，我的计算结果已关闭。提前打了你这么多，我的数学也很糟糕，所以我提前道歉。

以下是我的应用给我的结果：

http://www.tiikoni.com/tis/view/?id=8bd04d4

以下是BMI网站NIH的结果

http://www.tiikoni.com/tis/view/?id=86d4458

BMIFRAG.java

       public class BmiFrag extends Fragment implements View.OnClickListener 
       {

       Button BmiButton;

      public static EditText heightFT;
      public static EditText heightIn;
      public static EditText weightIn;


        @Override
        public void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       }

       @Override
      public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {


       View myView = inflater.inflate(R.layout.fragment_bmi, container, 
       false);
       BmiButton = (Button) myView.findViewById(R.id.CalculateBmi);
       BmiButton.setOnClickListener(this);
       return myView;
  }

       @Override
       public void onClick(View v) {
       switch (v.getId()) {

        case R.id.CalculateBmi:







                  weightIn = (EditText) 
                 getActivity().findViewById(R.id.ETtweight);

                 heightIn = (EditText)
                 getActivity().findViewById(R.id.ETHeightIn);

                 heightFT = (EditText) 
                getActivity().findViewById(R.id.ETHeightFT);

                final TextView tv4 = (TextView) 
               getActivity().findViewById(R.id.TFDisplayBmi);


              String getWeightIN = weightIn.getText().toString();




            String  getHeightIN = heightIn.getText().toString();

            String getHeightFT = heightFT.getText().toString();



            if (TextUtils.isEmpty(getWeightIN)) {



                weightIn.setError("Please enter your weight");
                weightIn.requestFocus();
                return;
            }

            else if (TextUtils.isEmpty(getHeightIN)) {
                heightIn.setError("Please enter your height in Inches");
                heightIn.requestFocus();
                return;
            }

            else if (TextUtils.isEmpty(getHeightFT)) {
                heightFT.setError("Please enter your height in Feet");
                heightFT.requestFocus();
                return;
            }


            else {

                float weight = Float.parseFloat(getWeightIN );

                float heightIN = Float.parseFloat(getHeightIN) ;
                float heightFT = Float.parseFloat(getHeightFT) ;

                float bmiValue = calculateBMI(weight,heightIN,heightFT);

                String bmiInterpretation = interpretBMI(bmiValue);

                   tv4.setText(String.valueOf(bmiValue + "-" + 
                 bmiInterpretation));


              }



               break;

           }
       }


      private float calculateBMI(float weight, float heightIN, float v) {



        float bmi= (float) (weight/ (heightIN*v)*4.88);

        float total= Math.round(bmi);



        return  total;
      }


           private String interpretBMI(float bmiValue) {

           if (bmiValue < 16) {
           return "Severely underweight";
          } else if (bmiValue < 18.5) {

             return "Underweight";
         } else if (bmiValue < 25) {

           return "Normal";
        } else if (bmiValue < 30) {

         return "Overweight";
        } else {
          return "Obese";


       }


      }


        @Override
         public void onActivityCreated(Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
        }

        @Override
          public void onDestroy() {
         super.onDestroy();

            }

             @Override
              public void onDetach() {
             super.onDetach();
                }

Answer 1

您不能使用相同的公式。试试这个：

float bmi = weight * 703f / (float)Math.pow(heightIN+12f*v,2);

上面的公式可以找到here。

我希望它有所帮助。

创建BMI计算器时，我的计算已关闭

1 个答案: