protected void onFinish() {
   if (finished) {
     return;
   }
   finished = true;
   NotificationCenter.getInstance().removeObserver(this, NotificationCenter.appDidLogout);
   NotificationCenter.getInstance().removeObserver(this, NotificationCenter.pushMessagesUpdated);
   NotificationCenter.getInstance().removeObserver(this, NotificationCenter.updateInterfaces);
   NotificationCenter.getInstance()
       .removeObserver(this, NotificationCenter.audioProgressDidChanged);
   NotificationCenter.getInstance().removeObserver(this, NotificationCenter.audioDidReset);
   NotificationCenter.getInstance().removeObserver(this, NotificationCenter.contactsDidLoaded);
   NotificationCenter.getInstance().removeObserver(this, NotificationCenter.emojiDidLoaded);
   if (chatActivityEnterView != null) {
     chatActivityEnterView.onDestroy();
   }
   if (wakeLock.isHeld()) {
     wakeLock.release();
   }
 }
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    classGuid = ConnectionsManager.getInstance().generateClassGuid();
    NotificationCenter.getInstance().addObserver(this, NotificationCenter.appDidLogout);
    NotificationCenter.getInstance().addObserver(this, NotificationCenter.pushMessagesUpdated);
    NotificationCenter.getInstance().addObserver(this, NotificationCenter.updateInterfaces);
    NotificationCenter.getInstance().addObserver(this, NotificationCenter.audioProgressDidChanged);
    NotificationCenter.getInstance().addObserver(this, NotificationCenter.audioDidReset);
    NotificationCenter.getInstance().addObserver(this, NotificationCenter.contactsDidLoaded);
    NotificationCenter.getInstance().addObserver(this, NotificationCenter.emojiDidLoaded);

    typingDotsDrawable = new TypingDotsDrawable();
    recordStatusDrawable = new RecordStatusDrawable();

    SizeNotifierFrameLayout contentView =
        new SizeNotifierFrameLayout(this) {
          @Override
          protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
            int widthMode = MeasureSpec.getMode(widthMeasureSpec);
            int heightMode = MeasureSpec.getMode(heightMeasureSpec);
            int widthSize = MeasureSpec.getSize(widthMeasureSpec);
            int heightSize = MeasureSpec.getSize(heightMeasureSpec);

            setMeasuredDimension(widthSize, heightSize);

            int keyboardSize = getKeyboardHeight();

            if (keyboardSize <= AndroidUtilities.dp(20)) {
              heightSize -= chatActivityEnterView.getEmojiPadding();
            }

            int childCount = getChildCount();
            for (int i = 0; i < childCount; i++) {
              View child = getChildAt(i);
              if (child.getVisibility() == GONE) {
                continue;
              }
              if (chatActivityEnterView.isPopupView(child)) {
                child.measure(
                    MeasureSpec.makeMeasureSpec(widthSize, MeasureSpec.EXACTLY),
                    MeasureSpec.makeMeasureSpec(
                        child.getLayoutParams().height, MeasureSpec.EXACTLY));
              } else {
                child.measure(
                    MeasureSpec.makeMeasureSpec(widthSize, MeasureSpec.EXACTLY),
                    MeasureSpec.makeMeasureSpec(
                        Math.max(AndroidUtilities.dp(10), heightSize + AndroidUtilities.dp(2)),
                        MeasureSpec.EXACTLY));
              }
            }
          }

          @Override
          protected void onLayout(boolean changed, int l, int t, int r, int b) {
            final int count = getChildCount();

            int paddingBottom =
                getKeyboardHeight() <= AndroidUtilities.dp(20)
                    ? chatActivityEnterView.getEmojiPadding()
                    : 0;

            for (int i = 0; i < count; i++) {
              final View child = getChildAt(i);
              if (child.getVisibility() == GONE) {
                continue;
              }
              final LayoutParams lp = (LayoutParams) child.getLayoutParams();

              int width = child.getMeasuredWidth();
              int height = child.getMeasuredHeight();

              int childLeft;
              int childTop;

              int gravity = lp.gravity;
              if (gravity == -1) {
                gravity = Gravity.TOP | Gravity.LEFT;
              }

              final int absoluteGravity = gravity & Gravity.HORIZONTAL_GRAVITY_MASK;
              final int verticalGravity = gravity & Gravity.VERTICAL_GRAVITY_MASK;

              switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
                case Gravity.CENTER_HORIZONTAL:
                  childLeft = (r - l - width) / 2 + lp.leftMargin - lp.rightMargin;
                  break;
                case Gravity.RIGHT:
                  childLeft = r - width - lp.rightMargin;
                  break;
                case Gravity.LEFT:
                default:
                  childLeft = lp.leftMargin;
              }

              switch (verticalGravity) {
                case Gravity.TOP:
                  childTop = lp.topMargin;
                  break;
                case Gravity.CENTER_VERTICAL:
                  childTop =
                      ((b - paddingBottom) - t - height) / 2 + lp.topMargin - lp.bottomMargin;
                  break;
                case Gravity.BOTTOM:
                  childTop = ((b - paddingBottom) - t) - height - lp.bottomMargin;
                  break;
                default:
                  childTop = lp.topMargin;
              }
              if (chatActivityEnterView.isPopupView(child)) {
                childTop =
                    paddingBottom != 0 ? getMeasuredHeight() - paddingBottom : getMeasuredHeight();
              }
              child.layout(childLeft, childTop, childLeft + width, childTop + height);
            }

            notifyHeightChanged();
          }
        };
    setContentView(contentView);
    contentView.setBackgroundColor(0x99000000);

    RelativeLayout relativeLayout = new RelativeLayout(this);
    contentView.addView(
        relativeLayout,
        LayoutHelper.createFrame(LayoutHelper.MATCH_PARENT, LayoutHelper.MATCH_PARENT));

    RelativeLayout popupContainer = new RelativeLayout(this);
    popupContainer.setBackgroundColor(0xffffffff);
    relativeLayout.addView(
        popupContainer,
        LayoutHelper.createRelative(
            LayoutHelper.MATCH_PARENT, 240, 12, 0, 12, 0, RelativeLayout.CENTER_IN_PARENT));

    if (chatActivityEnterView != null) {
      chatActivityEnterView.onDestroy();
    }
    chatActivityEnterView = new ChatActivityEnterView(this, contentView, null, false);
    popupContainer.addView(
        chatActivityEnterView,
        LayoutHelper.createRelative(
            LayoutHelper.MATCH_PARENT,
            LayoutHelper.WRAP_CONTENT,
            RelativeLayout.ALIGN_PARENT_BOTTOM));
    chatActivityEnterView.setDelegate(
        new ChatActivityEnterView.ChatActivityEnterViewDelegate() {
          @Override
          public void onMessageSend(String message) {
            if (currentMessageObject == null) {
              return;
            }
            if (currentMessageNum >= 0
                && currentMessageNum < NotificationsController.getInstance().popupMessages.size()) {
              NotificationsController.getInstance().popupMessages.remove(currentMessageNum);
            }
            MessagesController.getInstance()
                .markDialogAsRead(
                    currentMessageObject.getDialogId(),
                    currentMessageObject.getId(),
                    Math.max(0, currentMessageObject.getId()),
                    0,
                    currentMessageObject.messageOwner.date,
                    true,
                    true);
            currentMessageObject = null;
            getNewMessage();
          }

          @Override
          public void onTextChanged(CharSequence text, boolean big) {}

          @Override
          public void needSendTyping() {
            if (currentMessageObject != null) {
              MessagesController.getInstance()
                  .sendTyping(currentMessageObject.getDialogId(), 0, classGuid);
            }
          }

          @Override
          public void onAttachButtonHidden() {}

          @Override
          public void onAttachButtonShow() {}

          @Override
          public void onWindowSizeChanged(int size) {}
        });

    messageContainer = new FrameLayoutTouch(this);
    popupContainer.addView(messageContainer, 0);

    actionBar = new ActionBar(this);
    actionBar.setOccupyStatusBar(false);
    actionBar.setBackButtonImage(R.drawable.ic_ab_back);
    actionBar.setBackgroundColor(0xff54759e);
    actionBar.setItemsBackground(R.drawable.bar_selector);
    popupContainer.addView(actionBar);
    ViewGroup.LayoutParams layoutParams = actionBar.getLayoutParams();
    layoutParams.width = ViewGroup.LayoutParams.MATCH_PARENT;
    actionBar.setLayoutParams(layoutParams);

    ActionBarMenu menu = actionBar.createMenu();
    View view = menu.addItemResource(2, R.layout.popup_count_layout);
    countText = (TextView) view.findViewById(R.id.count_text);

    avatarContainer = new FrameLayoutFixed(this);
    avatarContainer.setBackgroundResource(R.drawable.bar_selector);
    avatarContainer.setPadding(AndroidUtilities.dp(4), 0, AndroidUtilities.dp(4), 0);
    actionBar.addView(avatarContainer);
    FrameLayout.LayoutParams layoutParams2 =
        (FrameLayout.LayoutParams) avatarContainer.getLayoutParams();
    layoutParams2.height = LayoutHelper.MATCH_PARENT;
    layoutParams2.width = LayoutHelper.WRAP_CONTENT;
    layoutParams2.rightMargin = AndroidUtilities.dp(48);
    layoutParams2.leftMargin = AndroidUtilities.dp(60);
    layoutParams2.gravity = Gravity.TOP | Gravity.LEFT;
    avatarContainer.setLayoutParams(layoutParams2);

    avatarImageView = new BackupImageView(this);
    avatarImageView.setRoundRadius(AndroidUtilities.dp(21));
    avatarContainer.addView(avatarImageView);
    layoutParams2 = (FrameLayout.LayoutParams) avatarImageView.getLayoutParams();
    layoutParams2.width = AndroidUtilities.dp(42);
    layoutParams2.height = AndroidUtilities.dp(42);
    layoutParams2.topMargin = AndroidUtilities.dp(3);
    avatarImageView.setLayoutParams(layoutParams2);

    nameTextView = new TextView(this);
    nameTextView.setTextColor(0xffffffff);
    nameTextView.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 18);
    nameTextView.setLines(1);
    nameTextView.setMaxLines(1);
    nameTextView.setSingleLine(true);
    nameTextView.setEllipsize(TextUtils.TruncateAt.END);
    nameTextView.setGravity(Gravity.LEFT);
    nameTextView.setTypeface(AndroidUtilities.getTypeface("fonts/rmedium.ttf"));
    avatarContainer.addView(nameTextView);
    layoutParams2 = (FrameLayout.LayoutParams) nameTextView.getLayoutParams();
    layoutParams2.width = LayoutHelper.WRAP_CONTENT;
    layoutParams2.height = LayoutHelper.WRAP_CONTENT;
    layoutParams2.leftMargin = AndroidUtilities.dp(54);
    layoutParams2.bottomMargin = AndroidUtilities.dp(22);
    layoutParams2.gravity = Gravity.BOTTOM;
    nameTextView.setLayoutParams(layoutParams2);

    onlineTextView = new TextView(this);
    onlineTextView.setTextColor(0xffd7e8f7);
    onlineTextView.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 14);
    onlineTextView.setLines(1);
    onlineTextView.setMaxLines(1);
    onlineTextView.setSingleLine(true);
    onlineTextView.setEllipsize(TextUtils.TruncateAt.END);
    onlineTextView.setGravity(Gravity.LEFT);
    avatarContainer.addView(onlineTextView);
    layoutParams2 = (FrameLayout.LayoutParams) onlineTextView.getLayoutParams();
    layoutParams2.width = LayoutHelper.WRAP_CONTENT;
    layoutParams2.height = LayoutHelper.WRAP_CONTENT;
    layoutParams2.leftMargin = AndroidUtilities.dp(54);
    layoutParams2.bottomMargin = AndroidUtilities.dp(4);
    layoutParams2.gravity = Gravity.BOTTOM;
    onlineTextView.setLayoutParams(layoutParams2);

    actionBar.setActionBarMenuOnItemClick(
        new ActionBar.ActionBarMenuOnItemClick() {
          @Override
          public void onItemClick(int id) {
            if (id == -1) {
              onFinish();
              finish();
            } else if (id == 1) {
              openCurrentMessage();
            } else if (id == 2) {
              switchToNextMessage();
            }
          }
        });

    PowerManager pm =
        (PowerManager) ApplicationLoader.applicationContext.getSystemService(Context.POWER_SERVICE);
    wakeLock =
        pm.newWakeLock(
            PowerManager.SCREEN_DIM_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP, "screen");
    wakeLock.setReferenceCounted(false);

    handleIntent(getIntent());
  }