Move chat viewer page into the fake fragment.

res/layout/chat_viewer_container.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) 2013, Redsolution LTD. All rights reserved.
+
+     This file is part of Xabber project; you can redistribute it and/or
+     modify it under the terms of the GNU General Public License, Version 3.
+
+     Xabber 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, see http://www.gnu.org/licenses/.
+-->
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/container"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    />

src/com/xabber/android/ui/ChatViewer.java

@@ -735,6 +735,14 @@ public class ChatViewer extends ManagedActivity implements
 		return false;
 	}
 
+	public int getChatCount() {
+		return chatViewerAdapter.getCount();
+	}
+
+	public int getChatPosition(String account, String user) {
+		return chatViewerAdapter.getPosition(account, user);
+	}
+
 	public static Intent createIntent(Context context, String account,
 			String user) {
 		return new EntityIntentBuilder(context, ChatViewer.class)

src/com/xabber/android/ui/ChatViewerFragment.java

+package com.xabber.android.ui;
+
+import android.os.Bundle;
+import android.support.v4.app.FragmentActivity;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.View.OnKeyListener;
+import android.view.ViewGroup;
+import android.view.animation.Animation;
+import android.view.animation.AnimationUtils;
+import android.widget.EditText;
+import android.widget.ImageView;
+import android.widget.ListView;
+import android.widget.TextView;
+import android.widget.TextView.OnEditorActionListener;
+
+import com.xabber.android.data.LogManager;
+import com.xabber.android.data.SettingsManager;
+import com.xabber.android.data.SettingsManager.SecurityOtrMode;
+import com.xabber.android.data.extension.otr.OTRManager;
+import com.xabber.android.data.extension.otr.SecurityLevel;
+import com.xabber.android.data.message.AbstractChat;
+import com.xabber.android.data.message.chat.ChatManager;
+import com.xabber.android.data.roster.AbstractContact;
+import com.xabber.android.data.roster.RosterManager;
+import com.xabber.android.ui.adapter.ChatMessageAdapter;
+import com.xabber.android.ui.adapter.OnTextChangedListener;
+import com.xabber.android.ui.helper.AbstractAvatarInflaterHelper;
+import com.xabber.android.ui.helper.ContactTitleInflater;
+import com.xabber.android.ui.widget.PageSwitcher;
+import com.xabber.androiddev.R;
+
+public class ChatViewerFragment {
+
+	private AbstractAvatarInflaterHelper avatarInflaterHelper;
+
+	private Animation shake;
+
+	private boolean skipOnTextChanges;
+
+	private ChatViewHolder chatViewHolder;
+
+	private final FragmentActivity activity;
+
+	private final View view;
+
+	public ChatViewerFragment(FragmentActivity activity) {
+		this.activity = activity;
+		onCreate(null);
+		view = onCreateView(activity.getLayoutInflater(), null, null);
+	}
+
+	private FragmentActivity getActivity() {
+		return activity;
+	}
+
+	private String getString(int resId, Object... formatArgs) {
+		return activity.getString(resId, formatArgs);
+	}
+
+	public View getView() {
+		return view;
+	}
+
+	public void onCreate(Bundle savedInstanceState) {
+		// super.onCreate(savedInstanceState);
+		avatarInflaterHelper = AbstractAvatarInflaterHelper
+				.createAbstractContactInflaterHelper();
+	}
+
+	public View onCreateView(LayoutInflater inflater, ViewGroup container,
+			Bundle savedInstanceState) {
+		shake = AnimationUtils.loadAnimation(getActivity(), R.anim.shake);
+		View view = inflater.inflate(R.layout.chat_viewer_item, container,
+				false);
+		ChatMessageAdapter chatMessageAdapter = new ChatMessageAdapter(
+				getActivity());
+		chatViewHolder = new ChatViewHolder(view, chatMessageAdapter);
+		chatViewHolder.list.setAdapter(chatViewHolder.chatMessageAdapter);
+		chatViewHolder.send.setOnClickListener((OnClickListener) getActivity());
+		chatViewHolder.title
+				.setOnClickListener((OnClickListener) getActivity());
+		chatViewHolder.input.setOnKeyListener((OnKeyListener) getActivity());
+		chatViewHolder.input
+				.setOnEditorActionListener((OnEditorActionListener) getActivity());
+		chatViewHolder.input.addTextChangedListener(new TextWatcher() {
+
+			@Override
+			public void onTextChanged(CharSequence s, int start, int before,
+					int count) {
+			}
+
+			@Override
+			public void beforeTextChanged(CharSequence s, int start, int count,
+					int after) {
+			}
+
+			@Override
+			public void afterTextChanged(Editable s) {
+				if (skipOnTextChanges)
+					return;
+				((OnTextChangedListener) getActivity()).onTextChanged(
+						chatViewHolder.input, s);
+			}
+
+		});
+		chatViewHolder.list.setOnCreateContextMenuListener(getActivity());
+		return view;
+	}
+
+	public void setChat(AbstractChat chat) {
+		final String account = chat.getAccount();
+		final String user = chat.getUser();
+		final AbstractContact abstractContact = RosterManager.getInstance()
+				.getBestContact(account, user);
+		if (chat.equals(chatViewHolder.chatMessageAdapter.getAccount(),
+				chatViewHolder.chatMessageAdapter.getUser())) {
+			chatViewHolder.chatMessageAdapter.updateInfo();
+		} else {
+			if (chatViewHolder.chatMessageAdapter.getAccount() != null
+					&& chatViewHolder.chatMessageAdapter.getUser() != null)
+				saveState();
+			if (PageSwitcher.LOG)
+				LogManager.i(
+						this,
+						"Load  "
+								+ chatViewHolder.chatMessageAdapter.getUser()
+								+ " in "
+								+ chatViewHolder.chatMessageAdapter
+										.getAccount());
+			skipOnTextChanges = true;
+			chatViewHolder.input.setText(ChatManager.getInstance()
+					.getTypedMessage(account, user));
+			chatViewHolder.input.setSelection(ChatManager.getInstance()
+					.getSelectionStart(account, user), ChatManager
+					.getInstance().getSelectionEnd(account, user));
+			skipOnTextChanges = false;
+			chatViewHolder.chatMessageAdapter.setChat(account, user);
+			chatViewHolder.list.setAdapter(chatViewHolder.list.getAdapter());
+		}
+
+		chatViewHolder.page
+				.setText(getString(R.string.chat_page,
+						((ChatViewer) getActivity()).getChatPosition(account,
+								user) + 1, ((ChatViewer) getActivity())
+								.getChatCount()));
+		ContactTitleInflater.updateTitle(chatViewHolder.title, getActivity(),
+				abstractContact);
+		avatarInflaterHelper.updateAvatar(chatViewHolder.avatar,
+				abstractContact);
+		SecurityLevel securityLevel = OTRManager.getInstance()
+				.getSecurityLevel(chat.getAccount(), chat.getUser());
+		SecurityOtrMode securityOtrMode = SettingsManager.securityOtrMode();
+		if (securityLevel == SecurityLevel.plain
+				&& (securityOtrMode == SecurityOtrMode.disabled || securityOtrMode == SecurityOtrMode.manual)) {
+			chatViewHolder.security.setVisibility(View.GONE);
+		} else {
+			chatViewHolder.security.setVisibility(View.VISIBLE);
+			chatViewHolder.security
+					.setImageLevel(securityLevel.getImageLevel());
+		}
+	}
+
+	public void saveState() {
+		if (PageSwitcher.LOG)
+			LogManager.i(
+					this,
+					"Save " + chatViewHolder.chatMessageAdapter.getUser()
+							+ " in "
+							+ chatViewHolder.chatMessageAdapter.getAccount());
+		ChatManager.getInstance().setTyped(
+				chatViewHolder.chatMessageAdapter.getAccount(),
+				chatViewHolder.chatMessageAdapter.getUser(),
+				chatViewHolder.input.getText().toString(),
+				chatViewHolder.input.getSelectionStart(),
+				chatViewHolder.input.getSelectionEnd());
+	}
+
+	public void onChatChange(boolean incomingMessage) {
+		if (incomingMessage)
+			chatViewHolder.nameHolder.startAnimation(shake);
+		chatViewHolder.chatMessageAdapter.onChange();
+	}
+
+	private static class ChatViewHolder {
+
+		final TextView page;
+		final View title;
+		final View nameHolder;
+		final ImageView avatar;
+		final ImageView security;
+		final View send;
+		final EditText input;
+		final ListView list;
+		final ChatMessageAdapter chatMessageAdapter;
+
+		public ChatViewHolder(View view, ChatMessageAdapter chatMessageAdapter) {
+			page = (TextView) view.findViewById(R.id.chat_page);
+			title = view.findViewById(R.id.title);
+			nameHolder = title.findViewById(R.id.name_holder);
+			avatar = (ImageView) title.findViewById(R.id.avatar);
+			security = (ImageView) title.findViewById(R.id.security);
+			send = view.findViewById(R.id.chat_send);
+			input = (EditText) view.findViewById(R.id.chat_input);
+			list = (ListView) view.findViewById(android.R.id.list);
+			this.chatMessageAdapter = chatMessageAdapter;
+		}
+
+	}
+
+}

src/com/xabber/android/ui/adapter/ChatViewerAdapter.java

@@ -17,37 +17,15 @@ package com.xabber.android.ui.adapter;
 import java.util.ArrayList;
 import java.util.Collection;
 
-import android.app.Activity;
-import android.text.Editable;
-import android.text.TextWatcher;
+import android.support.v4.app.FragmentActivity;
 import android.view.View;
-import android.view.View.OnClickListener;
-import android.view.View.OnKeyListener;
 import android.view.ViewGroup;
-import android.view.animation.Animation;
-import android.view.animation.AnimationUtils;
 import android.widget.BaseAdapter;
-import android.widget.EditText;
-import android.widget.ImageView;
-import android.widget.ListView;
-import android.widget.TextView;
-import android.widget.TextView.OnEditorActionListener;
 
-import com.xabber.android.data.LogManager;
-import com.xabber.android.data.SettingsManager;
-import com.xabber.android.data.SettingsManager.SecurityOtrMode;
 import com.xabber.android.data.entity.BaseEntity;
-import com.xabber.android.data.extension.otr.OTRManager;
-import com.xabber.android.data.extension.otr.SecurityLevel;
 import com.xabber.android.data.message.AbstractChat;
 import com.xabber.android.data.message.MessageManager;
-import com.xabber.android.data.message.chat.ChatManager;
-import com.xabber.android.data.roster.AbstractContact;
-import com.xabber.android.data.roster.RosterManager;
-import com.xabber.android.ui.helper.AbstractAvatarInflaterHelper;
-import com.xabber.android.ui.helper.ContactTitleInflater;
-import com.xabber.android.ui.widget.PageSwitcher;
-import com.xabber.androiddev.R;
+import com.xabber.android.ui.ChatViewerFragment;
 import com.xabber.xmpp.address.Jid;
 
 /**
@@ -59,7 +37,7 @@ import com.xabber.xmpp.address.Jid;
 public class ChatViewerAdapter extends BaseAdapter implements SaveStateAdapter,
 		UpdatableAdapter {
 
-	private final Activity activity;
+	private final FragmentActivity activity;
 
 	/**
 	 * Intent sent while opening chat activity.
@@ -73,16 +51,9 @@ public class ChatViewerAdapter extends BaseAdapter implements SaveStateAdapter,
 
 	private ArrayList<AbstractChat> activeChats;
 
-	private final AbstractAvatarInflaterHelper avatarInflaterHelper;
-
-	private final Animation shake;
-
-	private boolean skipOnTextChanges;
-
-	public ChatViewerAdapter(Activity activity, String account, String user) {
+	public ChatViewerAdapter(FragmentActivity activity, String account,
+			String user) {
 		this.activity = activity;
-		avatarInflaterHelper = AbstractAvatarInflaterHelper
-				.createAbstractContactInflaterHelper();
 		activeChats = new ArrayList<AbstractChat>();
 		intent = MessageManager.getInstance().getOrCreateChat(account,
 				Jid.getBareAddress(user));
@@ -92,7 +63,6 @@ public class ChatViewerAdapter extends BaseAdapter implements SaveStateAdapter,
 			intentPosition = -1;
 		else
 			intentPosition = activeChats.size();
-		shake = AnimationUtils.loadAnimation(activity, R.anim.shake);
 		onChange();
 	}
 
@@ -115,116 +85,29 @@ public class ChatViewerAdapter extends BaseAdapter implements SaveStateAdapter,
 	public View getView(int position, View convertView, ViewGroup parent) {
 		View view;
 		final AbstractChat chat = (AbstractChat) getItem(position);
-		final ChatViewHolder chatViewHolder;
+		ChatViewerFragment fragment;
 		if (convertView == null) {
-			view = activity.getLayoutInflater().inflate(
-					R.layout.chat_viewer_item, parent, false);
-			ChatMessageAdapter chatMessageAdapter = new ChatMessageAdapter(
-					activity);
-			chatViewHolder = new ChatViewHolder(view, chatMessageAdapter);
-			chatViewHolder.list.setAdapter(chatViewHolder.chatMessageAdapter);
-			chatViewHolder.send.setOnClickListener((OnClickListener) activity);
-			chatViewHolder.title.setOnClickListener((OnClickListener) activity);
-			chatViewHolder.input.setOnKeyListener((OnKeyListener) activity);
-			chatViewHolder.input
-					.setOnEditorActionListener((OnEditorActionListener) activity);
-			chatViewHolder.input.addTextChangedListener(new TextWatcher() {
-
-				@Override
-				public void onTextChanged(CharSequence s, int start,
-						int before, int count) {
-				}
-
-				@Override
-				public void beforeTextChanged(CharSequence s, int start,
-						int count, int after) {
-				}
-
-				@Override
-				public void afterTextChanged(Editable s) {
-					if (skipOnTextChanges)
-						return;
-					((OnTextChangedListener) activity).onTextChanged(
-							chatViewHolder.input, s);
-				}
-
-			});
-			chatViewHolder.list.setOnCreateContextMenuListener(activity);
-			view.setTag(chatViewHolder);
+			fragment = new ChatViewerFragment(activity);
+			view = fragment.getView();
+			view.setTag(fragment);
 		} else {
 			view = convertView;
-			chatViewHolder = (ChatViewHolder) view.getTag();
-		}
-		final String account = chat.getAccount();
-		final String user = chat.getUser();
-		final AbstractContact abstractContact = RosterManager.getInstance()
-				.getBestContact(account, user);
-
-		if (chat.equals(chatViewHolder.chatMessageAdapter.getAccount(),
-				chatViewHolder.chatMessageAdapter.getUser())) {
-			chatViewHolder.chatMessageAdapter.updateInfo();
-		} else {
-			if (chatViewHolder.chatMessageAdapter.getAccount() != null
-					&& chatViewHolder.chatMessageAdapter.getUser() != null)
-				saveState(view);
-			if (PageSwitcher.LOG)
-				LogManager.i(this, "Load " + view + " for "
-						+ chatViewHolder.chatMessageAdapter.getUser() + " in "
-						+ chatViewHolder.chatMessageAdapter.getAccount());
-			skipOnTextChanges = true;
-			chatViewHolder.input.setText(ChatManager.getInstance()
-					.getTypedMessage(account, user));
-			chatViewHolder.input.setSelection(ChatManager.getInstance()
-					.getSelectionStart(account, user), ChatManager
-					.getInstance().getSelectionEnd(account, user));
-			skipOnTextChanges = false;
-			chatViewHolder.chatMessageAdapter.setChat(account, user);
-			chatViewHolder.list.setAdapter(chatViewHolder.list.getAdapter());
-		}
-
-		chatViewHolder.page.setText(activity.getString(R.string.chat_page,
-				position + 1, getCount()));
-		ContactTitleInflater.updateTitle(chatViewHolder.title, activity,
-				abstractContact);
-		avatarInflaterHelper.updateAvatar(chatViewHolder.avatar,
-				abstractContact);
-		SecurityLevel securityLevel = OTRManager.getInstance()
-				.getSecurityLevel(chat.getAccount(), chat.getUser());
-		SecurityOtrMode securityOtrMode = SettingsManager.securityOtrMode();
-		if (securityLevel == SecurityLevel.plain
-				&& (securityOtrMode == SecurityOtrMode.disabled || securityOtrMode == SecurityOtrMode.manual)) {
-			chatViewHolder.security.setVisibility(View.GONE);
-		} else {
-			chatViewHolder.security.setVisibility(View.VISIBLE);
-			chatViewHolder.security
-					.setImageLevel(securityLevel.getImageLevel());
+			fragment = (ChatViewerFragment) view.getTag();
 		}
+		fragment.setChat(chat);
 		return view;
 	}
 
 	@Override
 	public void saveState(View view) {
-		ChatViewHolder chatViewHolder = (ChatViewHolder) view.getTag();
-		if (PageSwitcher.LOG)
-			LogManager.i(this, "Save " + view + " for "
-					+ chatViewHolder.chatMessageAdapter.getUser() + " in "
-					+ chatViewHolder.chatMessageAdapter.getAccount());
-		ChatManager.getInstance().setTyped(
-				chatViewHolder.chatMessageAdapter.getAccount(),
-				chatViewHolder.chatMessageAdapter.getUser(),
-				chatViewHolder.input.getText().toString(),
-				chatViewHolder.input.getSelectionStart(),
-				chatViewHolder.input.getSelectionEnd());
+		((ChatViewerFragment) view.getTag()).saveState();
 	}
 
 	/**
 	 * Must be called on changes in chat (message sent, received, etc.).
 	 */
 	public void onChatChange(View view, boolean incomingMessage) {
-		ChatViewHolder holder = (ChatViewHolder) view.getTag();
-		if (incomingMessage)
-			holder.nameHolder.startAnimation(shake);
-		holder.chatMessageAdapter.onChange();
+		((ChatViewerFragment) view.getTag()).onChatChange(incomingMessage);
 	}
 
 	@Override
@@ -243,30 +126,11 @@ public class ChatViewerAdapter extends BaseAdapter implements SaveStateAdapter,
 		notifyDataSetChanged();
 	}
 
-	private static class ChatViewHolder {
-
-		final TextView page;
-		final View title;
-		final View nameHolder;
-		final ImageView avatar;
-		final ImageView security;
-		final View send;
-		final EditText input;
-		final ListView list;
-		final ChatMessageAdapter chatMessageAdapter;
-
-		public ChatViewHolder(View view, ChatMessageAdapter chatMessageAdapter) {
-			page = (TextView) view.findViewById(R.id.chat_page);
-			title = view.findViewById(R.id.title);
-			nameHolder = title.findViewById(R.id.name_holder);
-			avatar = (ImageView) title.findViewById(R.id.avatar);
-			security = (ImageView) title.findViewById(R.id.security);
-			send = view.findViewById(R.id.chat_send);
-			input = (EditText) view.findViewById(R.id.chat_input);
-			list = (ListView) view.findViewById(android.R.id.list);
-			this.chatMessageAdapter = chatMessageAdapter;
-		}
-
+	public int getPosition(String account, String user) {
+		for (int position = 0; position < activeChats.size(); position++)
+			if (activeChats.get(position).equals(account, user))
+				return position;
+		return -1;
 	}
 
 }