Release notes are now shown in wizard like UI

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

@@ -31,7 +31,6 @@ import android.os.Build;
 import android.os.Bundle;
 import android.preference.PreferenceManager;
 import android.support.v7.app.ActionBar;
-import android.text.Html;
 import android.text.method.LinkMovementMethod;
 import android.util.Log;
 import android.view.*;
@@ -40,7 +39,6 @@ import android.widget.TextView;
 import org.solovyev.android.Activities;
 import org.solovyev.android.Android;
 import org.solovyev.android.Threads;
-import org.solovyev.android.calculator.about.CalculatorReleaseNotesFragment;
 import org.solovyev.android.calculator.plot.CalculatorPlotActivity;
 import org.solovyev.android.calculator.wizard.CalculatorWizards;
 import org.solovyev.android.fragments.FragmentUtils;
@@ -49,7 +47,6 @@ import org.solovyev.android.wizard.Wizard;
 import org.solovyev.android.wizard.Wizards;
 import org.solovyev.common.Objects;
 import org.solovyev.common.history.HistoryAction;
-import org.solovyev.common.text.Strings;
 
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
@@ -58,7 +55,9 @@ import static android.os.Build.VERSION_CODES.GINGERBREAD_MR1;
 import static android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH;
 import static android.view.WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON;
 import static org.solovyev.android.calculator.Preferences.Gui.preventScreenFromFading;
+import static org.solovyev.android.calculator.about.CalculatorReleaseNotesFragment.hasReleaseNotes;
 import static org.solovyev.android.wizard.WizardUi.continueWizard;
+import static org.solovyev.android.wizard.WizardUi.createLaunchIntent;
 import static org.solovyev.android.wizard.WizardUi.startWizard;
 
 public class CalculatorActivity extends BaseActivity implements SharedPreferences.OnSharedPreferenceChangeListener, CalculatorEventListener {
@@ -164,23 +163,19 @@ public class CalculatorActivity extends BaseActivity implements SharedPreference
 				} else {
 					if (savedVersion < appVersion) {
 						final boolean showReleaseNotes = Preferences.Gui.showReleaseNotes.getPreference(preferences);
-						if (showReleaseNotes) {
+						if (showReleaseNotes && hasReleaseNotes(context, savedVersion + 1)) {
-							final String releaseNotes = CalculatorReleaseNotesFragment.getReleaseNotes(context, savedVersion + 1);
+							final Bundle bundle = new Bundle();
-							if (!Strings.isEmpty(releaseNotes)) {
+							bundle.putInt(CalculatorWizards.RELEASE_NOTES_VERSION, savedVersion);
-								final AlertDialog.Builder builder = new AlertDialog.Builder(context).setMessage(Html.fromHtml(releaseNotes));
+							context.startActivity(createLaunchIntent(wizards, CalculatorWizards.RELEASE_NOTES, context, bundle));
-								builder.setPositiveButton(android.R.string.ok, null);
-								builder.setTitle(R.string.c_release_notes);
-								builder.create().show();
 							dialogShown = true;
 						}
 					}
 				}
 			}
-			}
 
 			//Log.d(this.getClass().getName(), "Application was opened " + appOpenedCounter + " time!");
 			if (!dialogShown) {
-				if (appOpenedCounter != null && appOpenedCounter > 100) {
+				if (appOpenedCounter != null && appOpenedCounter > 30) {
 					dialogShown = showSpecialWindow(preferences, Preferences.Gui.feedbackWindowShown, R.layout.feedback, R.id.feedbackText, context);
 				}
 			}

android-app/src/main/java/org/solovyev/android/calculator/about/CalculatorReleaseNotesFragment.java

@@ -35,6 +35,8 @@ import org.solovyev.android.calculator.R;
 import org.solovyev.common.text.Strings;
 
 import javax.annotation.Nonnull;
+import java.util.ArrayList;
+import java.util.List;
 
 import static org.solovyev.android.Android.getAppVersionCode;
 
@@ -61,11 +63,11 @@ public class CalculatorReleaseNotesFragment extends CalculatorFragment {
 
 	@Nonnull
 	public static String getReleaseNotes(@Nonnull Context context) {
-		return getReleaseNotes(context, 0);
+		return getReleaseNotesString(context, 0);
 	}
 
 	@Nonnull
-	public static String getReleaseNotes(@Nonnull Context context, int minVersion) {
+	public static String getReleaseNotesString(@Nonnull Context context, int minVersion) {
 		final StringBuilder result = new StringBuilder();
 
 		final String releaseNotesForTitle = context.getString(R.string.c_release_notes_for_title);
@@ -78,7 +80,6 @@ public class CalculatorReleaseNotesFragment extends CalculatorFragment {
 			final String versionName = getVersionName(textHelper, versionCode);
 			String releaseNotesForVersion = textHelper.getText(makeReleaseNotesResourceId(versionCode));
 			if (!Strings.isEmpty(releaseNotesForVersion)) {
-				if (releaseNotesForVersion == null) throw new AssertionError();
 				if (!first) {
 					result.append("<br/><br/>");
 				} else {
@@ -94,7 +95,38 @@ public class CalculatorReleaseNotesFragment extends CalculatorFragment {
 	}
 
 	@Nonnull
-	private static String getVersionName(@Nonnull TextHelper textHelper, int versionCode) {
+	public static List<Integer> getReleaseNotesVersions(@Nonnull Context context, int minVersion) {
+		final List<Integer> releaseNotes = new ArrayList<>();
+
+		final int currentVersionCode = getAppVersionCode(context);
+		final TextHelper textHelper = new TextHelper(context.getResources(), CalculatorApplication.class.getPackage().getName());
+
+		for (int versionCode = currentVersionCode; versionCode >= minVersion; versionCode--) {
+			final String releaseNotesForVersion = textHelper.getText(makeReleaseNotesResourceId(versionCode));
+			if (!Strings.isEmpty(releaseNotesForVersion)) {
+				releaseNotes.add(versionCode);
+			}
+		}
+
+		return releaseNotes;
+	}
+
+	public static boolean hasReleaseNotes(@Nonnull Context context, int minVersion) {
+		final int currentVersionCode = getAppVersionCode(context);
+		final TextHelper textHelper = new TextHelper(context.getResources(), CalculatorApplication.class.getPackage().getName());
+
+		for (int versionCode = currentVersionCode; versionCode >= minVersion; versionCode--) {
+			String releaseNotesForVersion = textHelper.getText(makeReleaseNotesResourceId(versionCode));
+			if (!Strings.isEmpty(releaseNotesForVersion)) {
+				return true;
+			}
+		}
+
+		return false;
+	}
+
+	@Nonnull
+	public static String getVersionName(@Nonnull TextHelper textHelper, int versionCode) {
 		final String versionName = textHelper.getText(makeVersionResourceId(versionCode));
 		if (versionName != null) {
 			return versionName;
@@ -103,7 +135,7 @@ public class CalculatorReleaseNotesFragment extends CalculatorFragment {
 		}
 	}
 
-	private static String makeReleaseNotesResourceId(int versionCode) {
+	public static String makeReleaseNotesResourceId(int versionCode) {
 		return "c_release_notes_for_" + versionCode;
 	}
 

android-app/src/main/java/org/solovyev/android/calculator/about/TextHelper.java

@@ -49,6 +49,9 @@ public class TextHelper {
 	public String getText(@Nonnull String stringName) {
 		final int stringId = this.resources.getIdentifier(stringName, "string", this.packageName);
 		try {
+			if (stringId == 0) {
+				return null;
+			}
 			return resources.getString(stringId);
 		} catch (Resources.NotFoundException e) {
 			return null;

android-app/src/main/java/org/solovyev/android/calculator/release/ReleaseNoteFragment.java

@@ -0,0 +1,56 @@
+package org.solovyev.android.calculator.release;
+
+import android.os.Bundle;
+import android.text.Html;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+import com.google.common.base.Strings;
+import org.solovyev.android.calculator.CalculatorApplication;
+import org.solovyev.android.calculator.R;
+import org.solovyev.android.calculator.about.CalculatorReleaseNotesFragment;
+import org.solovyev.android.calculator.about.TextHelper;
+import org.solovyev.android.calculator.wizard.WizardFragment;
+
+import javax.annotation.Nonnull;
+
+public class ReleaseNoteFragment extends WizardFragment {
+	@Nonnull
+	public static final String ARG_VERSION = "version";
+
+	private int version;
+
+	@Override
+	protected int getViewResId() {
+		return R.layout.cpp_release_note_step;
+	}
+
+	@Override
+	public void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		version = getArguments().getInt(ARG_VERSION, 0);
+	}
+
+	@Override
+	public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+		final View view = super.onCreateView(inflater, container, savedInstanceState);
+		final TextView title = (TextView) view.findViewById(R.id.release_note_title);
+		final TextHelper textHelper = new TextHelper(getActivity().getResources(), CalculatorApplication.class.getPackage().getName());
+		title.setText(getString(R.string.cpp_new_in_version, getReleaseNoteVersion(textHelper)));
+		final TextView message = (TextView) view.findViewById(R.id.release_note_message);
+		message.setText(Html.fromHtml(getReleaseNote(textHelper)));
+		return view;
+	}
+
+	@Nonnull
+	private String getReleaseNoteVersion(@Nonnull TextHelper textHelper) {
+		return CalculatorReleaseNotesFragment.getVersionName(textHelper, version);
+	}
+
+	@Nonnull
+	private String getReleaseNote(@Nonnull TextHelper textHelper) {
+		final String resourceId = CalculatorReleaseNotesFragment.makeReleaseNotesResourceId(version);
+		return Strings.nullToEmpty(textHelper.getText(resourceId)).replace("\n", "<br/>");
+	}
+}

android-app/src/main/java/org/solovyev/android/calculator/release/ReleaseNoteStep.java

@@ -0,0 +1,86 @@
+package org.solovyev.android.calculator.release;
+
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import org.solovyev.android.wizard.WizardStep;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+
+public class ReleaseNoteStep implements WizardStep {
+	private final int version;
+
+	public ReleaseNoteStep(int version) {
+		this.version = version;
+	}
+
+	public ReleaseNoteStep(@Nonnull Bundle arguments) {
+		this(arguments.getInt(ReleaseNoteFragment.ARG_VERSION, 0));
+	}
+
+	@Nonnull
+	@Override
+	public String getFragmentTag() {
+		return getName();
+	}
+
+	@Nonnull
+	@Override
+	public Class<? extends Fragment> getFragmentClass() {
+		return ReleaseNoteFragment.class;
+	}
+
+	@Nullable
+	@Override
+	public Bundle getFragmentArgs() {
+		final Bundle bundle = new Bundle();
+		bundle.putInt(ReleaseNoteFragment.ARG_VERSION, version);
+		return bundle;
+	}
+
+	@Override
+	public int getTitleResId() {
+		return 0;
+	}
+
+	@Override
+	public int getNextButtonTitleResId() {
+		return 0;
+	}
+
+	@Override
+	public boolean onNext(@Nonnull Fragment fragment) {
+		return false;
+	}
+
+	@Override
+	public boolean onPrev(@Nonnull Fragment fragment) {
+		return false;
+	}
+
+	@Override
+	public boolean isVisible() {
+		return false;
+	}
+
+	@Nonnull
+	@Override
+	public String getName() {
+		return "release-note-" + version;
+	}
+
+	@Override
+	public boolean equals(Object o) {
+		if (this == o) return true;
+		if (o == null || getClass() != o.getClass()) return false;
+
+		final ReleaseNoteStep that = (ReleaseNoteStep) o;
+		return version == that.version;
+
+	}
+
+	@Override
+	public int hashCode() {
+		return version;
+	}
+}

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

@@ -2,6 +2,9 @@ package org.solovyev.android.calculator.wizard;
 
 import android.app.Activity;
 import android.content.Context;
+import android.os.Bundle;
+import org.solovyev.android.calculator.about.CalculatorReleaseNotesFragment;
+import org.solovyev.android.calculator.release.ReleaseNoteStep;
 import org.solovyev.android.wizard.*;
 
 import javax.annotation.Nonnull;
@@ -15,6 +18,8 @@ import static org.solovyev.android.calculator.wizard.CalculatorWizardStep.welcom
 public class CalculatorWizards implements Wizards {
 
 	public static final String FIRST_TIME_WIZARD = "first-wizard";
+	public static final String RELEASE_NOTES = "release-notes";
+	public static final String RELEASE_NOTES_VERSION = "version";
 	public static final String DEFAULT_WIZARD_FLOW = "app-wizard";
 
 	@Nonnull
@@ -32,20 +37,28 @@ public class CalculatorWizards implements Wizards {
 
 	@Nonnull
 	@Override
-	public Wizard getWizard(@Nullable String name) {
+	public Wizard getWizard(@Nullable String name, @Nullable Bundle arguments) {
 		if (name == null) {
-			return getWizard(FIRST_TIME_WIZARD);
+			return getWizard(FIRST_TIME_WIZARD, arguments);
 		}
 
 		if (FIRST_TIME_WIZARD.equals(name)) {
 			return newBaseWizard(FIRST_TIME_WIZARD, newFirstTimeWizardFlow());
 		} else if (DEFAULT_WIZARD_FLOW.equals(name)) {
 			return newBaseWizard(DEFAULT_WIZARD_FLOW, newDefaultWizardFlow());
+		} else if (RELEASE_NOTES.equals(name)) {
+			return newBaseWizard(RELEASE_NOTES, newReleaseNotesWizardFlow(context, arguments));
 		} else {
 			throw new IllegalArgumentException("Wizard flow " + name + " is not supported");
 		}
 	}
 
+	@Nonnull
+	@Override
+	public Wizard getWizard(@Nullable String name) throws IllegalArgumentException {
+		return getWizard(name, null);
+	}
+
 	@Nonnull
 	private BaseWizard newBaseWizard(@Nonnull String name, @Nonnull WizardFlow flow) {
 		return new BaseWizard(name, context, flow);
@@ -62,6 +75,21 @@ public class CalculatorWizards implements Wizards {
 		return new ListWizardFlow(wizardSteps);
 	}
 
+	@Nonnull
+	static WizardFlow newReleaseNotesWizardFlow(@Nonnull Context context, @Nullable Bundle arguments) {
+		final List<WizardStep> wizardSteps = new ArrayList<WizardStep>();
+		final int startVersion = arguments != null ? arguments.getInt(RELEASE_NOTES_VERSION, 0) : 0;
+		List<Integer> versions = CalculatorReleaseNotesFragment.getReleaseNotesVersions(context, startVersion);
+		final int size = versions.size();
+		if (size > 7) {
+			versions = versions.subList(0, 7);
+		}
+		for (Integer version : versions) {
+			wizardSteps.add(new ReleaseNoteStep(version));
+		}
+		return new ListWizardFlow(wizardSteps);
+	}
+
 	@Nonnull
 	static WizardFlow newFirstTimeWizardFlow() {
 		final List<WizardStep> wizardSteps = new ArrayList<WizardStep>();
@@ -72,4 +100,5 @@ public class CalculatorWizards implements Wizards {
 		}
 		return new ListWizardFlow(wizardSteps);
 	}
+
 }

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

@@ -102,7 +102,8 @@ public class WizardActivity extends BaseActivity implements WizardsAware {
 	}
 
 	public void finishWizardAbruptly() {
-		finishWizardAbruptly(false);
+		final boolean confirmed = wizardUi.getWizard().getName().equals(CalculatorWizards.RELEASE_NOTES);
+		finishWizardAbruptly(confirmed);
 	}
 
 	public void finishWizardAbruptly(boolean confirmed) {

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

@@ -9,6 +9,8 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.widget.TextView;
 import org.solovyev.android.calculator.R;
+import org.solovyev.android.calculator.release.ReleaseNoteFragment;
+import org.solovyev.android.calculator.release.ReleaseNoteStep;
 import org.solovyev.android.wizard.Wizard;
 import org.solovyev.android.wizard.WizardFlow;
 import org.solovyev.android.wizard.WizardStep;
@@ -34,7 +36,11 @@ public abstract class WizardFragment extends Fragment implements View.OnClickLis
 	}
 
 	@Nonnull
-	private CalculatorWizardStep findStepByClassName() {
+	private WizardStep findStepByClassName() {
+		if (this instanceof ReleaseNoteFragment) {
+			return new ReleaseNoteStep(getArguments());
+		}
+
 		for (CalculatorWizardStep step : CalculatorWizardStep.values()) {
 			if (step.getFragmentClass().equals(getClass())) {
 				return step;

android-app/src/main/java/org/solovyev/android/wizard/WizardUi.java

@@ -12,6 +12,7 @@ import javax.annotation.Nullable;
 public class WizardUi<A extends FragmentActivity> {
 
 	private static final String FLOW = "flow";
+	private static final String ARGUMENTS = "arguments";
 	private static final String STEP = "step";
 
 	protected WizardStep step;
@@ -44,7 +45,8 @@ public class WizardUi<A extends FragmentActivity> {
 			stepName = savedInstanceState.getString(STEP);
 		}
 
-		wizard = wizardsAware.getWizards().getWizard(wizardName);
+		final Bundle arguments = intent.getBundleExtra(ARGUMENTS);
+		wizard = wizardsAware.getWizards().getWizard(wizardName, arguments);
 
 		if (stepName != null) {
 			step = wizard.getFlow().getStepByName(stepName);
@@ -131,10 +133,16 @@ public class WizardUi<A extends FragmentActivity> {
 	}
 
 	@Nonnull
-	private static Intent createLaunchIntent(@Nonnull Wizards wizards, @Nullable String name, @Nonnull Context context) {
+	public static Intent createLaunchIntent(@Nonnull Wizards wizards, @Nullable String name, @Nonnull Context context) {
+		return createLaunchIntent(wizards, name, context, null);
+	}
+
+	@Nonnull
+	public static Intent createLaunchIntent(@Nonnull Wizards wizards, @Nullable String name, @Nonnull Context context, @Nullable Bundle arguments) {
 		final Intent intent = new Intent(context, wizards.getActivityClassName());
 		intent.putExtra(FLOW, name);
 		intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
+		intent.putExtra(ARGUMENTS, arguments);
 		return intent;
 	}
 }

android-app/src/main/java/org/solovyev/android/wizard/Wizards.java

@@ -1,6 +1,7 @@
 package org.solovyev.android.wizard;
 
 import android.app.Activity;
+import android.os.Bundle;
 
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
@@ -10,6 +11,9 @@ public interface Wizards {
 	@Nonnull
 	Class<? extends Activity> getActivityClassName();
 
+	@Nonnull
+	public Wizard getWizard(@Nullable String name, @Nullable Bundle arguments) throws IllegalArgumentException;
+
 	@Nonnull
 	public Wizard getWizard(@Nullable String name) throws IllegalArgumentException;
 }

android-app/src/main/res/layout/cpp_release_note_step.xml

@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!--
+  ~ Copyright 2013 serso aka se.solovyev
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~    http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  ~
+  ~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+  ~ Contact details
+  ~
+  ~ Email: se.solovyev@gmail.com
+  ~ Site:  http://se.solovyev.org
+  -->
+
+<LinearLayout xmlns:a="http://schemas.android.com/apk/res/android"
+	a:layout_width="match_parent"
+	a:layout_height="match_parent"
+	a:orientation="vertical"
+	a:gravity="center">
+
+	<TextView
+		style="@style/WizardLabel"
+		a:id="@+id/release_note_title"
+		a:layout_height="wrap_content"
+		a:layout_width="match_parent"
+		a:textAppearance="@android:style/TextAppearance.Large" />
+
+	<TextView
+		style="@style/WizardLabel.Last"
+		a:id="@+id/release_note_message"
+		a:layout_height="wrap_content"
+		a:layout_width="match_parent"
+		a:textAppearance="@android:style/TextAppearance.Medium" />
+
+</LinearLayout>

android-app/src/main/res/values/strings.xml

@@ -15,4 +15,5 @@
 	<string name="wizard_final">The app is set up and ready to use.</string>
 	<string name="wizard_skip">Skip</string>
 	<string name="wizard_finish">Finish</string>
+	<string name="cpp_new_in_version">New in %1$s version</string>
 </resources>