I am building an UnitConverter App in android. Creating spinners adapters binding them everything is done. Now the main part remains that is putting the logics. How do i add them? Like If from the "From" spinner Second And from "To" spinner "Minute" is selected then put this logic and show output. If "Metre" is selected and "Mile" is selected then put that logic and show output. `
package com.hasibshovon.unitconverter;
import android.app.Activity;
import android.os.Bundle;
import android.preference.SwitchPreference;
import android.view.Menu;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.Switch;
public class MainActivity extends Activity {
// data source
private static String[] types = { "Angle", "Area", "Bits&Bytes", "Density",
"Electric Current", "Energy", "Force", "Length", "Mass", "Power",
"Pressure", "Speed", "Temperature", "Time", "Volume" };
private static String[] AngleUnits = { "Degree", "Radian", "Grad", "Gon",
"Minute", "Second", "SIgn", "Mil", "Revolution", "Circle", "Turn",
"Quadrant", "Right", "Triangle", "Sextant" };
private static String[] AreaUnits = { "SquareMeter", "SquareKilometer",
"SquareHectometer", "SquareDekameter", "SquareDecimeter",
"SquareCentimeter", "SquareMilimeter", "SquareMicrometer",
"SquareNanometer", "Hectare", "SquareMile", "SquareYard",
"SquareFoot", "SquareInch", "Acre" };
private static String[] BitsBytesUnits = { "bit", "byte", "kilobit",
"kilobyte", "megabit", "megabyte", "gigabit", "gigabyte",
"terabit", "terabyte", "petabit", "petabyte", "exabit", "exabyte" };
private static String[] DensityUnits = { "kilogram/cubicmeter",
"kilogram/cubiccentimeter", "gram/cubicmeter",
"gram/cubiccentimeter", "gram/cubicmilimeter",
"miligram/cubicmeter", "miligram/cubiccentimeter",
"miligram/cubicmilimeter", "exagram/liter", "petagram/liter",
"teragram/liter", "gigagram/liter", "meggram/liter",
"kilogram/liter", "hectogram/liter", "decagram/liter",
"gram/liter", "decigram/liter", "centigram/liter",
"miligram/liter", "microgram/liter", "nanogram/liter",
"picogram/liter" };
private static String[] CurrentUnits = { "ampere", "kiloampere",
"miliampere", "biot", "abaampere", "stataampere" };
private static String[] EnergyUnits = { "joule", "gigajoule", "megajoule",
"kilojoule", "milijoule", "microjoule", "nanojoule", "attojoule" };
private static String[] ForceUnits = { "newton", "dyne", "joul/meter",
"joul/centimeter", "gram-force", "kilogram-force", "kip-force",
"pond", "kilo-pond" };
private static String[] LengthUnits = { "meter", "exameter", "terameter",
"petameter", "gigameter", "megameter", "kilometer", "hectometer",
"dekameter", "decimeter", "centimeter", "milimeter", "micrometer",
"nanometer", "picometer", "femtometer", "attometer" };
private static String[] MassUnits = { "gram", "kilogram", "miligram",
"dalton", "pound", "ounce", "ton", "quarter", "grain" };
private static String[] PowerUnits = { "watt", "megawatt", "horsepower",
"kilocalorie", "joul/hour", "kilojoul/hour", "joul/second" };
private static String[] PressureUnits = { "pascal", "newton/squaremeter",
"bar", "kilogram-force/squaremeter", "ton-force/squarefoot",
"poundal/squarefoot", "atmosphere(atm)" };
private static String[] SpeedUnits = { "meter/second", "kilometer/hour",
"foot/hour", "yard/hour", "mile/hour", "mile/second", "knot" };
private static String[] TemperatureUnits = { "kelvin", "celsius",
"farenheit", "rankine", "reaumur" };
private static String[] TimeUnits = { "second", "milisecond",
"microsecond", "nanosecond", "minute", "hour", "day", "week",
"month", "year", "decade", "century", "millenium" };
private static String[] VolumeUnits = { "cubicmeter", "cubickilometer",
"cubiccentimeter", "liter", "cc", "barrel", "cup", "cubicmile",
"cubicfoot", "cubicyard", "cubicinch", "acre-foot" };
private Spinner spnUnitTypes;
private Spinner spnFromUnit;
private Spinner spnToUnit;
private EditText etFrom;
private EditText etTo;
// adapters
ArrayAdapter<String> adaptUnittype;
ArrayAdapter<String> adaptFrom;
ArrayAdapter<String> adaptTo;
// private OnItemSelectedListener UnitLisetener;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// spnUnitTypes.setOnItemSelectedListener(UnitLisetener);
etFrom = (EditText) findViewById(R.id.etConvertFrom);
etTo = (EditText) findViewById(R.id.etToResult);
// initialize view
spnUnitTypes = (Spinner) findViewById(R.id.spnUnitType);
spnFromUnit = (Spinner) findViewById(R.id.spnFromUnit);
spnToUnit = (Spinner) findViewById(R.id.spnToUnit);
// initialize adapter
adaptUnittype = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, types);
// bind adapter and view
spnUnitTypes.setAdapter(adaptUnittype);
spnUnitTypes.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int postion, long arg3) {
if (types[postion].equals("Time")) {
adaptFrom = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, TimeUnits);
adaptTo = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, TimeUnits);
} else if (types[postion].equals("Mass")) {
adaptFrom = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, MassUnits);
adaptTo = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, MassUnits);
} else if (types[postion].equals("Angle")) {
adaptFrom = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, AngleUnits);
adaptTo = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, AngleUnits);
} else if (types[postion].equals("Area")) {
adaptFrom = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, AreaUnits);
adaptTo = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, AreaUnits);
} else if (types[postion].equals("Density")) {
adaptFrom = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, DensityUnits);
adaptTo = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, DensityUnits);
} else if (types[postion].equals("Bits&Bytes")) {
adaptFrom = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item,
BitsBytesUnits);
adaptTo = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item,
BitsBytesUnits);
} else if (types[postion].equals("Electric Current")) {
adaptFrom = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, CurrentUnits);
adaptTo = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, CurrentUnits);
} else if (types[postion].equals("Energy")) {
adaptFrom = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, EnergyUnits);
adaptTo = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, EnergyUnits);
} else if (types[postion].equals("Force")) {
adaptFrom = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, ForceUnits);
adaptTo = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, ForceUnits);
} else if (types[postion].equals("Length")) {
adaptFrom = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, LengthUnits);
adaptTo = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, LengthUnits);
} else if (types[postion].equals("Power")) {
adaptFrom = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, PowerUnits);
adaptTo = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, PowerUnits);
} else if (types[postion].equals("Pressure")) {
adaptFrom = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, PressureUnits);
adaptTo = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, PressureUnits);
} else if (types[postion].equals("Speed")) {
adaptFrom = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, SpeedUnits);
adaptTo = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item, SpeedUnits);
} else if (types[postion].equals("Temperature")) {
adaptFrom = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item,
TemperatureUnits);
adaptTo = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_spinner_item,
TemperatureUnits);
}
spnFromUnit.setAdapter(adaptFrom);
spnToUnit.setAdapter(adaptTo);
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
