Android Open Source - FlangeAssist Nozzle Calc

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Back to project page FlangeAssist.
License

The source code is released under:
MIT License
If you think the Android project FlangeAssist listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

package com.atasoft.flangeassist.fragments;
//ww  w  .  j  ava2  s . c o m
import android.content.*;
import android.graphics.*;
import android.os.*;
import android.preference.*;
import android.support.v4.app.*;
import android.text.*;
import android.util.*;
import android.view.*;
import android.widget.*;
import com.atasoft.flangeassist.*;

public class NozzleCalc extends Fragment
{
    View thisFrag;
  Context context;
  SharedPreferences prefs;
  
  @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.nozzlecalc_layout, container, false);
        this.thisFrag = v;
    this.context = getActivity().getApplicationContext();
    this.prefs = PreferenceManager.getDefaultSharedPreferences(context);
    
    setupViews();
    setListeners();
  
    return v;
    }

  @Override
  public void onPause()
  {
    savePrefs();
    super.onPause();
  }
  

  @Override
  public void onResume()
  {
    loadPrefs();
    super.onResume();
  }


  //-------------------Startup Functions-----------
  private EditText shellODEdit;
  private EditText nozzleCentAngleEdit;
  private EditText nozzleODEdit;
  private TextView nozzleCentArcText;
  private TextView nozzleEdgeAngleText;
  private TextView nozzleEdgeArcText;
  private void setupViews() {
    this.shellODEdit = (EditText) thisFrag.findViewById(R.id.nozzle_shellODEdit);
    this.nozzleCentAngleEdit = (EditText) thisFrag.findViewById(R.id.nozzle_angleEdit);
    this.nozzleODEdit = (EditText) thisFrag.findViewById(R.id.nozzle_nozODEdit);
    this.nozzleCentArcText = (TextView) thisFrag.findViewById(R.id.nozzle_arcCenterText);
    this.nozzleEdgeAngleText = (TextView) thisFrag.findViewById(R.id.nozzle_angleEdgeText);
    this.nozzleEdgeArcText = (TextView) thisFrag.findViewById(R.id.nozzle_arcEdgesText);
    return;
  }

  boolean listenFlag = false;
  private void setListeners(){
    if(listenFlag) return; 
    shellODEdit.addTextChangedListener(new TextWatcher(){
        @Override
        public void afterTextChanged(Editable s){
          updateNozzleCalc();
        }
        @Override
        public void beforeTextChanged(CharSequence s, int start, int count, int after){}
        @Override
        public void onTextChanged(CharSequence s, int start, int count, int after){}
      });
    nozzleCentAngleEdit.addTextChangedListener(new TextWatcher(){
        @Override
        public void afterTextChanged(Editable s){
          updateNozzleCalc();
        }
        @Override
        public void beforeTextChanged(CharSequence s, int start, int count, int after){}
        @Override
        public void onTextChanged(CharSequence s, int start, int count, int after){}
      });
    nozzleODEdit.addTextChangedListener(new TextWatcher(){
        @Override
        public void afterTextChanged(Editable s){
          updateNozzleCalc();
        }
        @Override
        public void beforeTextChanged(CharSequence s, int start, int count, int after){}
        @Override
        public void onTextChanged(CharSequence s, int start, int count, int after){}
      });
    listenFlag = true;
    return;
  }

  //----------------Updating Functions---------------
  private double shellOD;
  private double centAngle;
  private double nozzleOD;
  private void updateNozzleCalc(){
    this.shellOD = getDoubleFromEdit(shellODEdit, 0.01d, 1000000000);
    this.centAngle = getDoubleFromEdit(nozzleCentAngleEdit, 0, 180);
    this.nozzleOD = getDoubleFromEdit(nozzleODEdit, 0.01d, shellOD / 2);
    String nozEdgeAng = "error";
    String nozEdgeArc = "error";
    String nozCentArc = "error";
    double centAngleRads = Math.toRadians(centAngle);
    if(shellOD >= 0 && centAngle >= 0){
      double nozCentArcD = centAngleRads * (shellOD / 2);
      nozCentArc = Double.toString(digitRound(nozCentArcD, 4));
      if(nozzleOD >= 0){
        double deltaAngle = 
          Math.toDegrees(
            Math.asin(
              (nozzleOD/2)/(shellOD/2)
            )
          );
        double[] edgeAngles = {centAngle - deltaAngle, centAngle + deltaAngle};
        double[] edgeArcLengths = {shellOD/2 * Math.toRadians(edgeAngles[0]), shellOD/2 * Math.toRadians(edgeAngles[1])};
        nozEdgeAng = String.format("%s, %s", Double.toString(digitRound(edgeAngles[0], 2)), Double.toString(digitRound(edgeAngles[1], 4)));
        nozEdgeArc = String.format("%s, %s", Double.toString(digitRound(edgeArcLengths[0], 2)), Double.toString(digitRound(edgeArcLengths[1], 4)));
      }
    }
    
    nozzleCentArcText.setText("Nozzle Center Arclength: " + nozCentArc);
    nozzleEdgeAngleText.setText("Nozzle Edge Angles: " + nozEdgeAng);
    nozzleEdgeArcText.setText("Nozzle Edge Arclengths: " + nozEdgeArc);
  }
  
  private double digitRound(double val, int digits){
    //TODO
    double factor = Math.pow(10, digits);
    return Math.round(val * factor) / factor;
  }
  
  private double getDoubleFromEdit(EditText eText, double floor, double ceiling) throws NumberFormatException{
    double parseVal = -1d;
    try{
      parseVal = Double.parseDouble(eText.getText().toString()); 
    } catch(NumberFormatException e){
      eText.setTextColor(Color.RED);
      Log.e("NozzleCalc", "Exception parsing an EditText.");
    }
    if(parseVal < floor || parseVal > ceiling){
      eText.setTextColor(Color.RED);
      parseVal = -1d;
    } else {
      eText.setTextColor(Color.WHITE);
    }
    return parseVal;
  }
  
  private void savePrefs(){
    SharedPreferences.Editor prefEdit = prefs.edit();
    prefEdit.putFloat("ATA_nozzleShellOD", (float) shellOD);
    prefEdit.putFloat("ATA_nozzleAngle", (float) centAngle);
    prefEdit.putFloat("ATA_nozzleOD", (float) nozzleOD);
    prefEdit.apply();
  }
  
  private void loadPrefs(){
    shellODEdit.setText(Float.toString(prefs.getFloat("ATA_nozzleShellOD", 10f)));
    nozzleCentAngleEdit.setText(Float.toString(prefs.getFloat("ATA_nozzleAngle", 45f)));
    nozzleODEdit.setText(Float.toString(prefs.getFloat("ATA_nozzleOD", 2f)));
  }
}
Java Source Code List
