new screen orientation logic

ChangeLog

@@ -8,6 +8,7 @@
 * Image in image view can be scaled using pinch (Android 2+)
 * Full-screen cover images
 * An exception in *.mobi file reading has been fixed
+* New screen orientation option; keeps screen orientation between starts
 
 ===== 1.2.6 (Dec 19, 2011) =====
 * Android 3.*, 4.*: bottom buttons are hidden during book reading

assets/resources/application/en.xml

@@ -252,6 +252,12 @@
 		</node>
 		<node name="search" value="Search"/>
 		<node name="rotate" value="Rotate screen"/>
+		<node name="screenOrientation" value="Screen orientation"/>
+		<node name="screenOrientationAuto" value="Auto"/>
+		<node name="screenOrientationPortrait" value="Portrait"/>
+		<node name="screenOrientationLandscape" value="Landscape"/>
+		<node name="screenOrientationReversePortrait" value="Reverse portrait"/>
+		<node name="screenOrientationReverseLandscape" value="Reverse landscape"/>
 		<node name="increaseFont" value="Zoom in"/>
 		<node name="decreaseFont" value="Zoom out"/>
 		<node name="toggleFullscreen" value="Full Screen"/>
@@ -301,6 +307,13 @@
 			</node>
 			<node name="appearance" value="Appearance">
 				<node name="summary" value="Rotation, status bar"/>
+				<node name="screenOrientation" value="Screen orientation">
+					<node name="auto" value="Auto"/>
+					<node name="portrait" value="Portrait"/>
+					<node name="landscape" value="Landscape"/>
+					<node name="reversePortrait" value="Reverse portrait"/>
+					<node name="reverseLandscape" value="Reverse landscape"/>
+				</node>
 				<node name="autoOrientation" value="Automatic rotation">
 					<node name="summaryOn" value="The display will rotate when user moves the device"/>
 					<node name="summaryOff" value="The display will not rotate when user moves the device"/>

src/org/geometerplus/android/fbreader/FBReader.java

@@ -30,6 +30,7 @@ import android.view.WindowManager;
 import android.widget.RelativeLayout;
 
 import org.geometerplus.zlibrary.core.filesystem.ZLFile;
+import org.geometerplus.zlibrary.core.library.ZLibrary;
 
 import org.geometerplus.zlibrary.text.view.ZLTextView;
 import org.geometerplus.zlibrary.text.hyphenation.ZLTextHyphenator;
@@ -102,7 +103,7 @@ public final class FBReader extends ZLAndroidActivity {
 	@Override
 	public void onCreate(Bundle icicle) {
 		super.onCreate(icicle);
-		final ZLAndroidLibrary zlibrary = (ZLAndroidLibrary)ZLAndroidLibrary.Instance();
+		final ZLAndroidLibrary zlibrary = (ZLAndroidLibrary)ZLibrary.Instance();
 		myFullScreenFlag =
 			zlibrary.ShowStatusBarOption.getValue() ? 0 : WindowManager.LayoutParams.FLAG_FULLSCREEN;
 		getWindow().setFlags(
@@ -141,11 +142,19 @@ public final class FBReader extends ZLAndroidActivity {
 		fbReader.addAction(ActionCode.PROCESS_HYPERLINK, new ProcessHyperlinkAction(this, fbReader));
 
 		fbReader.addAction(ActionCode.SHOW_CANCEL_MENU, new ShowCancelMenuAction(this, fbReader));
+
+		fbReader.addAction(ActionCode.SET_SCREEN_ORIENTATION_AUTO, new SetScreenOrientationAction(this, fbReader, ZLibrary.SCREEN_ORIENTATION_AUTO));
+		fbReader.addAction(ActionCode.SET_SCREEN_ORIENTATION_PORTRAIT, new SetScreenOrientationAction(this, fbReader, ZLibrary.SCREEN_ORIENTATION_PORTRAIT));
+		fbReader.addAction(ActionCode.SET_SCREEN_ORIENTATION_LANDSCAPE, new SetScreenOrientationAction(this, fbReader, ZLibrary.SCREEN_ORIENTATION_LANDSCAPE));
+		if (ZLibrary.Instance().supportsAllOrientations()) {
+			fbReader.addAction(ActionCode.SET_SCREEN_ORIENTATION_REVERSE_PORTRAIT, new SetScreenOrientationAction(this, fbReader, ZLibrary.SCREEN_ORIENTATION_REVERSE_PORTRAIT));
+			fbReader.addAction(ActionCode.SET_SCREEN_ORIENTATION_REVERSE_LANDSCAPE, new SetScreenOrientationAction(this, fbReader, ZLibrary.SCREEN_ORIENTATION_REVERSE_LANDSCAPE));
+		}
 	}
 
  	@Override
 	public boolean onPrepareOptionsMenu(Menu menu) {
-		final ZLAndroidLibrary zlibrary = (ZLAndroidLibrary)ZLAndroidLibrary.Instance();
+		final ZLAndroidLibrary zlibrary = (ZLAndroidLibrary)ZLibrary.Instance();
 		if (!zlibrary.ShowStatusBarOption.getValue() &&
 			zlibrary.ShowStatusBarWhenMenuIsActiveOption.getValue()) {
 			getWindow().addFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
@@ -156,7 +165,7 @@ public final class FBReader extends ZLAndroidActivity {
 	@Override
 	public void onOptionsMenuClosed(Menu menu) {
 		super.onOptionsMenuClosed(menu);
-		final ZLAndroidLibrary zlibrary = (ZLAndroidLibrary)ZLAndroidLibrary.Instance();
+		final ZLAndroidLibrary zlibrary = (ZLAndroidLibrary)ZLibrary.Instance();
 		if (!zlibrary.ShowStatusBarOption.getValue() &&
 			zlibrary.ShowStatusBarWhenMenuIsActiveOption.getValue()) {
 			getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
@@ -204,7 +213,7 @@ public final class FBReader extends ZLAndroidActivity {
 	@Override
 	public void onStart() {
 		super.onStart();
-		final ZLAndroidLibrary zlibrary = (ZLAndroidLibrary)ZLAndroidLibrary.Instance();
+		final ZLAndroidLibrary zlibrary = (ZLAndroidLibrary)ZLibrary.Instance();
 
 		final int fullScreenFlag =
 			zlibrary.ShowStatusBarOption.getValue() ? 0 : WindowManager.LayoutParams.FLAG_FULLSCREEN;
@@ -213,6 +222,8 @@ public final class FBReader extends ZLAndroidActivity {
 			startActivity(new Intent(this, getClass()));
 		}
 
+		SetScreenOrientationAction.setOrientation(this, zlibrary.OrientationOption.getValue());
+
 		final FBReaderApp fbReader = (FBReaderApp)FBReaderApp.Instance();
 		final RelativeLayout root = (RelativeLayout)findViewById(R.id.root_view);
 		((PopupPanel)fbReader.getPopupById(TextSearchPopup.ID)).createControlPanel(this, root, PopupWindow.Location.Bottom);
@@ -368,7 +379,14 @@ public final class FBReader extends ZLAndroidActivity {
 		addMenuItem(menu, ActionCode.SEARCH, R.drawable.ic_menu_search);
 		addMenuItem(menu, ActionCode.SHOW_PREFERENCES);
 		addMenuItem(menu, ActionCode.SHOW_BOOK_INFO);
-		addMenuItem(menu, ActionCode.ROTATE);
+		final Menu subMenu = menu.addSubMenu("Screen orientation");
+		addMenuItem(subMenu, ActionCode.SET_SCREEN_ORIENTATION_AUTO);
+		addMenuItem(subMenu, ActionCode.SET_SCREEN_ORIENTATION_PORTRAIT);
+		addMenuItem(subMenu, ActionCode.SET_SCREEN_ORIENTATION_LANDSCAPE);
+		if (ZLibrary.Instance().supportsAllOrientations()) {
+			addMenuItem(subMenu, ActionCode.SET_SCREEN_ORIENTATION_REVERSE_PORTRAIT);
+			addMenuItem(subMenu, ActionCode.SET_SCREEN_ORIENTATION_REVERSE_LANDSCAPE);
+		}
 		addMenuItem(menu, ActionCode.INCREASE_FONT);
 		addMenuItem(menu, ActionCode.DECREASE_FONT);
 		addMenuItem(menu, ActionCode.SHOW_NAVIGATION);

src/org/geometerplus/android/fbreader/SetOrientationAction.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2007-2012 Geometer Plus <contact@geometerplus.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+package org.geometerplus.android.fbreader;
+
+import android.app.Activity;
+import android.content.pm.ActivityInfo;
+
+import org.geometerplus.zlibrary.core.library.ZLibrary;
+import org.geometerplus.fbreader.fbreader.FBReaderApp;
+
+class SetScreenOrientationAction extends FBAndroidAction {
+	static void setOrientation(Activity activity, String optionValue) {
+		int orientation = ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;
+		if (ZLibrary.SCREEN_ORIENTATION_PORTRAIT.equals(optionValue)) {
+			orientation = ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;
+		} else if (ZLibrary.SCREEN_ORIENTATION_LANDSCAPE.equals(optionValue)) {
+			orientation = ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;
+		} else if (ZLibrary.SCREEN_ORIENTATION_REVERSE_PORTRAIT.equals(optionValue)) {
+			orientation = 9;
+		} else if (ZLibrary.SCREEN_ORIENTATION_REVERSE_LANDSCAPE.equals(optionValue)) {
+			orientation = 8;
+		}
+		activity.setRequestedOrientation(orientation);
+	}
+
+	private final String myOptionValue;
+
+	SetScreenOrientationAction(FBReader baseActivity, FBReaderApp fbreader, String optionValue) {
+		super(baseActivity, fbreader);
+		myOptionValue = optionValue;
+	}
+
+	@Override
+	protected void run(Object ... params) {
+		setOrientation(BaseActivity, myOptionValue);
+		ZLibrary.Instance().OrientationOption.setValue(myOptionValue);
+	}
+}

src/org/geometerplus/android/fbreader/preferences/PreferenceActivity.java

@@ -58,7 +58,10 @@ public class PreferenceActivity extends ZLPreferenceActivity {
 
 		final ZLPreferenceSet statusBarPreferences = new ZLPreferenceSet();
 		final Screen appearanceScreen = createPreferenceScreen("appearance");
-		appearanceScreen.addOption(androidLibrary.AutoOrientationOption, "autoOrientation");
+		appearanceScreen.addPreference(new ZLStringChoicePreference(
+			this, appearanceScreen.Resource, "screenOrientation",
+			androidLibrary.OrientationOption, androidLibrary.allOrientations()
+		));
 		appearanceScreen.addPreference(
 			new ZLBooleanPreference(
 				this, androidLibrary.ShowStatusBarOption, appearanceScreen.Resource, "showStatusBar"

src/org/geometerplus/fbreader/fbreader/ActionCode.java

@@ -55,7 +55,12 @@ public interface ActionCode {
 	String EXIT = "exit";
 	String SHOW_CANCEL_MENU = "cancelMenu";
 
-	String ROTATE = "rotate";
+	String SET_SCREEN_ORIENTATION_AUTO = "screenOrientationAuto";
+	String SET_SCREEN_ORIENTATION_PORTRAIT = "screenOrientationPortrait";
+	String SET_SCREEN_ORIENTATION_LANDSCAPE = "screenOrientationLandscape";
+	String SET_SCREEN_ORIENTATION_REVERSE_PORTRAIT = "screenOrientationReversePortrait";
+	String SET_SCREEN_ORIENTATION_REVERSE_LANDSCAPE = "screenOrientationReverseLandscape";
+
 	String INCREASE_FONT = "increaseFont";
 	String DECREASE_FONT = "decreaseFont";
 

src/org/geometerplus/fbreader/fbreader/FBReaderApp.java

@@ -109,7 +109,6 @@ public final class FBReaderApp extends ZLApplication {
 
 		addAction(ActionCode.INCREASE_FONT, new ChangeFontSizeAction(this, +2));
 		addAction(ActionCode.DECREASE_FONT, new ChangeFontSizeAction(this, -2));
-		addAction(ActionCode.ROTATE, new RotateAction(this));
 
 		addAction(ActionCode.FIND_NEXT, new FindNextAction(this));
 		addAction(ActionCode.FIND_PREVIOUS, new FindPreviousAction(this));

src/org/geometerplus/fbreader/fbreader/RotateAction.java

@@ -1,36 +0,0 @@
-/*
- * Copyright (C) 2007-2012 Geometer Plus <contact@geometerplus.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- */
-
-package org.geometerplus.fbreader.fbreader;
-
-class RotateAction extends FBAction {
-	RotateAction(FBReaderApp fbreader) {
-		super(fbreader);
-	}
-
-	@Override
-	protected void run(Object ... params) {
-		Reader.rotateScreen();
-	}
-
-	@Override
-	public boolean isVisible() {
-		return Reader.canRotateScreen();
-	}
-}

src/org/geometerplus/zlibrary/core/application/ZLApplication.java

@@ -153,19 +153,6 @@ public abstract class ZLApplication {
 		return false;
 	}
 
-	public void rotateScreen() {
-		if (myWindow != null) {
-			myWindow.rotate();
-		}
-	}
-
-	public boolean canRotateScreen() {
-		if (myWindow != null) {
-			return myWindow.canRotate();
-		}
-		return false;
-	}
-
 	public boolean closeWindow() {
 		onWindowClosing();
 		if (myWindow != null) {

src/org/geometerplus/zlibrary/core/application/ZLApplicationWindow.java

@@ -40,9 +40,6 @@ abstract public class ZLApplicationWindow {
 	
 	abstract protected ZLViewWidget getViewWidget();
 
-	abstract protected void rotate();
-	abstract protected boolean canRotate();
-
 	abstract protected void close();
 
 	abstract protected int getBatteryLevel();

src/org/geometerplus/zlibrary/core/library/ZLibrary.java

@@ -22,6 +22,7 @@ package org.geometerplus.zlibrary.core.library;
 import java.util.Collection;
 
 import org.geometerplus.zlibrary.core.filesystem.ZLResourceFile;
+import org.geometerplus.zlibrary.core.options.ZLStringOption;
 
 public abstract class ZLibrary {
 	public static ZLibrary Instance() {
@@ -30,6 +31,14 @@ public abstract class ZLibrary {
 		
 	private static ZLibrary ourImplementation;
 
+	public static final String SCREEN_ORIENTATION_AUTO = "auto";
+	public static final String SCREEN_ORIENTATION_PORTRAIT = "portrait";
+	public static final String SCREEN_ORIENTATION_LANDSCAPE = "landscape";
+	public static final String SCREEN_ORIENTATION_REVERSE_PORTRAIT = "reversePortrait";
+	public static final String SCREEN_ORIENTATION_REVERSE_LANDSCAPE = "reverseLandscape";
+
+	public final ZLStringOption OrientationOption = new ZLStringOption("LookNFeel", "Orientation", "auto");
+
 	protected ZLibrary() {
 		ourImplementation = this;
 	}
@@ -43,4 +52,21 @@ public abstract class ZLibrary {
 	abstract public int getScreenBrightness();
 	abstract public int getDisplayDPI();
 	abstract public Collection<String> defaultLanguageCodes();
+
+	abstract public boolean supportsAllOrientations();
+	public String[] allOrientations() {
+		return supportsAllOrientations()
+			? new String[] {
+				SCREEN_ORIENTATION_AUTO,
+				SCREEN_ORIENTATION_PORTRAIT,
+				SCREEN_ORIENTATION_LANDSCAPE,
+				SCREEN_ORIENTATION_REVERSE_PORTRAIT,
+				SCREEN_ORIENTATION_REVERSE_LANDSCAPE
+			}
+			: new String[] {
+				SCREEN_ORIENTATION_AUTO,
+				SCREEN_ORIENTATION_PORTRAIT,
+				SCREEN_ORIENTATION_LANDSCAPE
+			};
+	}
 }

src/org/geometerplus/zlibrary/ui/android/application/ZLAndroidApplicationWindow.java

@@ -99,16 +99,6 @@ public final class ZLAndroidApplicationWindow extends ZLApplicationWindow {
 		return ((ZLAndroidLibrary)ZLAndroidLibrary.Instance()).getWidget();
 	}
 
-	@Override
-	public void rotate() {
-		((ZLAndroidLibrary)ZLAndroidLibrary.Instance()).rotateScreen();
-	}
-
-	public boolean canRotate() {
-		final ZLAndroidLibrary zlibrary = (ZLAndroidLibrary)ZLAndroidLibrary.Instance();
-		return zlibrary.AutoOrientationOption.getValue();
-	}
-
 	public void close() {
 		((ZLAndroidLibrary)ZLAndroidLibrary.Instance()).finish();
 	}

src/org/geometerplus/zlibrary/ui/android/library/ZLAndroidActivity.java

@@ -41,13 +41,6 @@ public abstract class ZLAndroidActivity extends Activity {
 	private static final String REQUESTED_ORIENTATION_KEY = "org.geometerplus.zlibrary.ui.android.library.androidActiviy.RequestedOrientation";
 	private static final String ORIENTATION_CHANGE_COUNTER_KEY = "org.geometerplus.zlibrary.ui.android.library.androidActiviy.ChangeCounter";
 
-	@Override
-	protected void onSaveInstanceState(Bundle state) {
-		super.onSaveInstanceState(state);
-		state.putInt(REQUESTED_ORIENTATION_KEY, myOrientation);
-		state.putInt(ORIENTATION_CHANGE_COUNTER_KEY, myChangeCounter);
-	}
-
 	private void setScreenBrightnessAuto() {
 		final WindowManager.LayoutParams attrs = getWindow().getAttributes();
 		attrs.screenBrightness = -1.0f;
@@ -89,12 +82,8 @@ public abstract class ZLAndroidActivity extends Activity {
 	@Override
 	public void onCreate(Bundle state) {
 		super.onCreate(state);
-		Thread.setDefaultUncaughtExceptionHandler(new UncaughtExceptionHandler(this));
 
-		if (state != null) {
+		Thread.setDefaultUncaughtExceptionHandler(new UncaughtExceptionHandler(this));
-			myOrientation = state.getInt(REQUESTED_ORIENTATION_KEY, ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
-			myChangeCounter = state.getInt(ORIENTATION_CHANGE_COUNTER_KEY);
-		}
 
 		requestWindowFeature(Window.FEATURE_NO_TITLE);
 		if (getLibrary().DisableButtonLightsOption.getValue()) {
@@ -117,28 +106,6 @@ public abstract class ZLAndroidActivity extends Activity {
 		ZLApplication.Instance().getViewWidget().repaint();
 	}
 
-	@Override
-	public void onStart() {
-		super.onStart();
-
-		if (getLibrary().AutoOrientationOption.getValue()) {
-			setAutoRotationMode();
-		} else {
-			switch (myOrientation) {
-				case ActivityInfo.SCREEN_ORIENTATION_PORTRAIT:
-				case ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE:
-					if (getRequestedOrientation() != myOrientation) {
-						setRequestedOrientation(myOrientation);
-						myChangeCounter = 0;
-					}
-					break;
-				default:
-					setAutoRotationMode();
-					break;
-			}
-		}
-	}
-
 	private PowerManager.WakeLock myWakeLock;
 	private boolean myWakeLockToCreate;
 	private boolean myStartTimer;
@@ -234,61 +201,6 @@ public abstract class ZLAndroidActivity extends Activity {
 		return ((view != null) && view.onKeyUp(keyCode, event)) || super.onKeyUp(keyCode, event);
 	}
 
-	private int myChangeCounter;
-	private int myOrientation = ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;
-	private void setAutoRotationMode() {
-		myOrientation = getLibrary().AutoOrientationOption.getValue() ?
-			ActivityInfo.SCREEN_ORIENTATION_SENSOR : ActivityInfo.SCREEN_ORIENTATION_NOSENSOR;
-		setRequestedOrientation(myOrientation);
-		myChangeCounter = 0;
-	}
-
-	@Override
-	public void onConfigurationChanged(Configuration config) {
-		super.onConfigurationChanged(config);
-
-		switch (getRequestedOrientation()) {
-			default:
-				break;
-			case ActivityInfo.SCREEN_ORIENTATION_PORTRAIT:
-				if (config.orientation != Configuration.ORIENTATION_PORTRAIT) {
-					myChangeCounter = 0;
-				} else if (myChangeCounter++ > 0) {
-					setAutoRotationMode();
-				}
-				break;
-			case ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE:
-				if (config.orientation != Configuration.ORIENTATION_LANDSCAPE) {
-					myChangeCounter = 0;
-				} else if (myChangeCounter++ > 0) {
-					setAutoRotationMode();
-				}
-				break;
-		}
-	}
-
-	void rotate() {
-		View view = findViewById(R.id.main_view);
-		if (view != null) {
-			switch (getRequestedOrientation()) {
-				case ActivityInfo.SCREEN_ORIENTATION_PORTRAIT:
-					myOrientation = ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;
-					break;
-				case ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE:
-					myOrientation = ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;
-					break;
-				default:
-					if (view.getWidth() > view.getHeight()) {
-						myOrientation = ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;
-					} else {
-						myOrientation = ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;
-					}
-			}
-			setRequestedOrientation(myOrientation);
-			myChangeCounter = 0;
-		}
-	}
-
 	BroadcastReceiver myBatteryInfoReceiver = new BroadcastReceiver() {
 		public void onReceive(Context context, Intent intent) {
 			final int level = intent.getIntExtra("level", 100);

src/org/geometerplus/zlibrary/ui/android/library/ZLAndroidLibrary.java

@@ -21,10 +21,12 @@ package org.geometerplus.zlibrary.ui.android.library;
 
 import java.io.*;
 import java.util.*;
+import java.lang.reflect.Field;
 
 import android.app.Application;
-import android.content.res.AssetFileDescriptor;
 import android.content.Context;
+import android.content.pm.ActivityInfo;
+import android.content.res.AssetFileDescriptor;
 import android.os.Build;
 import android.telephony.TelephonyManager;
 import android.text.format.DateFormat;
@@ -40,7 +42,6 @@ import org.geometerplus.zlibrary.ui.android.R;
 import org.geometerplus.zlibrary.ui.android.view.ZLAndroidWidget;
 
 public final class ZLAndroidLibrary extends ZLibrary {
-	public final ZLBooleanOption AutoOrientationOption = new ZLBooleanOption("LookNFeel", "AutoOrientation", false);
 	public final ZLBooleanOption ShowStatusBarOption = new ZLBooleanOption("LookNFeel", "ShowStatusBar", hasNoHardwareMenuButton());
 	public final ZLBooleanOption ShowStatusBarWhenMenuIsActiveOption = new ZLBooleanOption("LookNFeel", "ShowStatusBarWithMenu", true);
 	public final ZLIntegerRangeOption BatteryLevelToTurnScreenOffOption = new ZLIntegerRangeOption("LookNFeel", "BatteryLevelToTurnScreenOff", 0, 100, 50);
@@ -69,12 +70,6 @@ public final class ZLAndroidLibrary extends ZLibrary {
 		myWidget = null;
 	}
 
-	public void rotateScreen() {
-		if (myActivity != null)	{
-			myActivity.rotate();
-		}
-	}
-
 	public void finish() {
 		if ((myActivity != null) && !myActivity.isFinishing()) {
 			myActivity.finish();
@@ -165,6 +160,15 @@ public final class ZLAndroidLibrary extends ZLibrary {
 		return set;
 	}
 
+	@Override
+	public boolean supportsAllOrientations() {
+		try {
+			return ActivityInfo.class.getField("SCREEN_ORIENTATION_REVERSE_PORTRAIT") != null;
+		} catch (NoSuchFieldException e) {
+			return false;
+		}
+	}
+
 	private final class AndroidAssetsFile extends ZLResourceFile {
 		private final AndroidAssetsFile myParent;