Android Open Source - FlangeAssist Unit Con Fragment

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License

The source code is released under:

MIT License

Java Source Code

package com.atasoft.flangeassist.fragments;
/*from   www.j av a  2 s.  c o m*/
import android.os.*;
import android.support.v4.app.*;
import android.util.Log;
import android.view.*;
import android.widget.*;

import com.atasoft.flangeassist.*;
import com.atasoft.helpers.*;

import android.text.*;

public class UnitConFragment extends Fragment //implements OnClickListener
{
  View thisFrag;
  
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
               Bundle savedInstanceState) {

        thisFrag = inflater.inflate(R.layout.unit_conv , container, false);
        setupConvSpinners();
    setEditListener();
    return thisFrag;
    }
  
  private void setEditListener(){
    inBox.addTextChangedListener(new TextWatcher(){
      @Override
      public void afterTextChanged(Editable s){
        updateConversion();
      }
      @Override
      public void beforeTextChanged(CharSequence s, int start, int count, int after){}
      @Override
      public void onTextChanged(CharSequence s, int start, int count, int after){}
    });
  }
  
  //------------------Converter Functions------------------
  Spinner typeSpin;
  Spinner unitSpin1;
  Spinner unitSpin2;
  EditText inBox;
  TextView outBox;
  TextView fracBox;
  Button goButton;
  ConvDataHold dataHold;
  private void setupConvSpinners(){
    this.typeSpin = (Spinner) thisFrag.findViewById(R.id.unit_conv_type_spinner);
    this.unitSpin1 = (Spinner) thisFrag.findViewById(R.id.unit_conv_unit1_spinner);
    this.unitSpin2 = (Spinner) thisFrag.findViewById(R.id.unit_conv_unit2_spinner);
    this.inBox = (EditText) thisFrag.findViewById(R.id.unit_conv_text_input);
    this.outBox = (TextView) thisFrag.findViewById(R.id.unit_conv_text_output);
    this.fracBox = (TextView) thisFrag.findViewById(R.id.unit_conv_frac_output);
    this.dataHold = new ConvDataHold();

    ArrayAdapter<String> typeAdapter = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_spinner_item, ConvDataHold.typeStrings);
    typeSpin.setAdapter(typeAdapter);

    typeSpin.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
            public void onItemSelected(AdapterView<?> parent, View view,
                       int pos, long id) {refreshUnits();}
        public void onNothingSelected(AdapterView<?> parent) {
        }
      });
    refreshUnits();
    return;
  }

  String oldType = null;
  private void refreshUnits(){
    String type = (String) typeSpin.getSelectedItem();
    if(type != oldType){
      String[] unitStrings = dataHold.getUnitNames(type);
      ArrayAdapter<String> unitAdapter = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_spinner_item, unitStrings);
      unitSpin1.setAdapter(unitAdapter);
      unitSpin2.setAdapter(unitAdapter);
      if(unitStrings.length > 1){  //Do(d)ge index out of range... Such Index.
        unitSpin2.setSelection(1);
      }
    }
    this.oldType = type;
  }
  
  private void updateConversion(){
    String inText = inBox.getText().toString();
    double inVal = 0;
    try{
      inVal = Double.parseDouble(inText);
    } catch (NumberFormatException e) {
      Log.e("UnitConFrag", "failed to parse input.");
    }
    String unit1 = unitSpin1.getSelectedItem().toString();
    String unit2 = unitSpin2.getSelectedItem().toString();
    String unitShorthand = dataHold.getUnit(oldType, unit2);
    double result = dataHold.convertValue(inVal, oldType, unit1, unit2);
    String fracResult = dataHold.makeFraction(result, 16);
    
    outBox.setText(String.format("%s %s", result, unitShorthand));
    fracBox.setText(String.format("%s %s (Nearest 16th)", fracResult, unitShorthand));
  }
}

Java Source Code List

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