@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
// TODO Auto-generated method stub
super.onUpdate(context, appWidgetManager, appWidgetIds);
Log.i(TAG, "onUpdate");
Intent service = new Intent(context, CalculatorAppWidgetService.class);
context.startService(service);
for (int i = 0; i < appWidgetIds.length; i++) {
RemoteViews view = new RemoteViews(context.getPackageName(), R.layout.widget_main);
if (appWidgetIds[appWidgetIds.length - 1] > theMaxWidgetID) {
theMaxWidgetID = appWidgetIds[appWidgetIds.length - 1];
CalculatorWidgetEntity entity = new CalculatorWidgetEntity();
entity.setView(view);
entity.setViewId(appWidgetIds[i]);
entity.setFormula("");
entity.setResult("");
mEntities.add(entity);
}
updateWidget(context, view, appWidgetIds[i]);
appWidgetManager.updateAppWidget(appWidgetIds, view);
}
}
public int evaluate(String expr) {
if (expr.equalsIgnoreCase("")) {
return EMPTY;
}
entity.setFormula(mTokenizer.getLocalizedExpression(expr));
expr = mTokenizer.getNormalizedExpression(expr);
while (expr.length() > 0 && ".+-/*".indexOf(expr.charAt(expr.length() - 1)) != -1) {
expr = expr.substring(0, expr.length() - 1);
}
try {
double result = mSymbols.eval(expr);
if (Double.isNaN(result)) {
return NAN; // "NaN";
} else {
entity.setResult(
mTokenizer.getLocalizedExpression(
Util.doubleToString(result, MAX_DIGITS, ROUNDING_DIGITS)));
return RESULT; // "result";
}
} catch (SyntaxException e) {
return SYNTAX; // "syntax";
}
}
