Wizard changes

android-app/src/main/java/org/solovyev/android/calculator/ActivityUi.java

@@ -77,7 +77,7 @@ public class ActivityUi extends BaseUi {
 		final SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(activity);
 
 		theme = Preferences.Gui.getTheme(preferences);
-		activity.setTheme(theme.getThemeId());
+		activity.setTheme(theme.getThemeId(activity));
 
 		this.layout = Preferences.Gui.getLayout(preferences);
 

android-app/src/main/java/org/solovyev/android/calculator/Preferences.java

@@ -22,15 +22,18 @@
 
 package org.solovyev.android.calculator;
 
+import android.app.Activity;
 import android.content.SharedPreferences;
 import jscl.AngleUnit;
 import jscl.NumeralBase;
 import org.solovyev.android.calculator.math.MathType;
 import org.solovyev.android.calculator.model.AndroidCalculatorEngine;
+import org.solovyev.android.calculator.wizard.WizardActivity;
 import org.solovyev.android.prefs.*;
 import org.solovyev.android.view.VibratorContainer;
 
 import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
 import java.text.DecimalFormatSymbols;
 import java.util.Locale;
 
@@ -123,6 +126,14 @@ public final class Preferences {
 
 			@Nonnull
 			public Integer getThemeId() {
+				return getThemeId(null);
+			}
+
+			@Nonnull
+			public Integer getThemeId(@Nullable Activity activity) {
+				if (activity instanceof WizardActivity) {
+					return R.style.Theme_Wizard;
+				}
 				return themeId;
 			}
 		}

android-app/src/main/java/org/solovyev/android/calculator/wizard/CalculatorWizardStep.java

@@ -30,11 +30,6 @@ import org.solovyev.android.calculator.R;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 
-/**
- * User: serso
- * Date: 6/16/13
- * Time: 9:17 PM
- */
 enum CalculatorWizardStep implements org.solovyev.android.wizard.WizardStep {
 
 	welcome(WelcomeWizardStep.class, R.string.cpp_wizard_welcome_title, R.string.cpp_wizard_start),

android-app/src/main/java/org/solovyev/android/calculator/wizard/WizardFragment.java

@@ -3,11 +3,13 @@ package org.solovyev.android.calculator.wizard;
 import android.os.Bundle;
 import android.support.annotation.LayoutRes;
 import android.support.v4.app.Fragment;
+import android.text.TextUtils;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.TextView;
 import org.solovyev.android.calculator.R;
+import org.solovyev.android.wizard.Wizard;
 import org.solovyev.android.wizard.WizardFlow;
 import org.solovyev.android.wizard.WizardStep;
 
@@ -58,11 +60,13 @@ public abstract class WizardFragment extends Fragment implements View.OnClickLis
 			prevButton.setOnClickListener(this);
 		}
 
-		final WizardFlow flow = getWizardActivity().getFlow();
+		final Wizard wizard = getWizardActivity().getWizard();
+		final WizardFlow flow = wizard.getFlow();
 		final boolean canGoNext = flow.getNextStep(step) != null;
 		final boolean canGoPrev = flow.getPrevStep(step) != null;
+		final boolean firstTimeWizard = TextUtils.equals(wizard.getName(), CalculatorWizards.FIRST_TIME_WIZARD);
 		if (canGoNext) {
-			if (canGoPrev) {
+			if (canGoPrev || !firstTimeWizard) {
 				setupNextButton(R.string.acl_wizard_next);
 			} else {
 				setupNextButton(R.string.acl_wizard_start);
@@ -74,7 +78,9 @@ public abstract class WizardFragment extends Fragment implements View.OnClickLis
 		if (canGoPrev) {
 			setupPrevButton(R.string.acl_wizard_back);
 		} else {
-			setupPrevButton(R.string.wizard_skip);
+			if (firstTimeWizard) {
+				setupPrevButton(R.string.wizard_skip);
+			}
 		}
 
 		return view;
@@ -83,11 +89,13 @@ public abstract class WizardFragment extends Fragment implements View.OnClickLis
 	protected final void setupNextButton(int textResId) {
 		assert nextButton != null;
 		nextButton.setText(textResId);
+		nextButton.setVisibility(View.VISIBLE);
 	}
 
 	protected final void setupPrevButton(int textResId) {
 		assert prevButton != null;
 		prevButton.setText(textResId);
+		prevButton.setVisibility(View.VISIBLE);
 	}
 
 	@LayoutRes