protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
// Create your application here
SetContentView(Resource.Layout.Length);
EditText valueToConvert = FindViewById <EditText>(Resource.Id.ValueToConvertLength);
TextView convertedValue = FindViewById <TextView>(Resource.Id.convertedValueLength);
Spinner spinnerA = FindViewById <Spinner>(Resource.Id.LengthSpinnerA);
Spinner spinnerB = FindViewById <Spinner>(Resource.Id.LengthSpinnerB);
spinnerA.Prompt = "Select unit";
spinnerA.ItemSelected += new EventHandler <AdapterView.ItemSelectedEventArgs>(lengthSpinner_ItemSelectedA);
spinnerB.ItemSelected += new EventHandler <AdapterView.ItemSelectedEventArgs>(lengthSpinner_ItemSelectedB);
var lengthAdapter = ArrayAdapter.CreateFromResource(this, Resource.Array.LengthSpinnerArray, Android.Resource.Layout.SimpleSpinnerItem);
lengthAdapter.SetDropDownViewResource(Android.Resource.Layout.SimpleSpinnerDropDownItem);
spinnerA.Adapter = lengthAdapter;
spinnerB.Adapter = lengthAdapter;
valueToConvert.TextChanged += (object sender, Android.Text.TextChangedEventArgs e) => {
if (!(String.Equals(unit_origin, "--Choose a Unit--", StringComparison.Ordinal) ||
String.Equals(unit_result, "--Choose a Unit--", StringComparison.Ordinal) ||
String.Equals(unit_origin, "default", StringComparison.Ordinal) ||
String.Equals(unit_result, "default", StringComparison.Ordinal)) &&
!string.IsNullOrEmpty(valueToConvert.Text))
{
convertedValue.Text = LengthConvert.Convert(unit_origin, unit_result, Convert.ToDouble(valueToConvert.Text)).ToString();
}
if (string.IsNullOrEmpty(valueToConvert.Text))
{
convertedValue.Text = valueToConvert.Text;
}
};
}
/*
* Event handler for the spinner of result unit
*/
private void lengthSpinner_ItemSelectedB(object sender, AdapterView.ItemSelectedEventArgs e)
{
Spinner spinner = (Spinner)sender;
EditText valueToConvert = FindViewById <EditText>(Resource.Id.ValueToConvertLength);
TextView convertedValue = FindViewById <TextView>(Resource.Id.convertedValueLength);
string chosenunit = (string)spinner.GetItemAtPosition(e.Position);
string choose = "--Choose a Unit--";
if (String.Equals(chosenunit, choose, StringComparison.Ordinal))
{
unit_result = "default";
}
else
{
unit_result = chosenunit;
if (!(String.Equals(unit_origin, "default", StringComparison.Ordinal)) && !string.IsNullOrEmpty(valueToConvert.Text))
{
convertedValue.Text = LengthConvert.Convert(unit_origin, unit_result, Convert.ToDouble(valueToConvert.Text)).ToString();
}
}
}