Examples with ViewGroup android.view.ViewGroup used on opensource projects

Example 16 with ViewGroup

use of android.view.ViewGroup in project cw-omnibus by commonsguy.

the class BaseMenuPresenter method updateMenuView.

/**
     * Reuses item views when it can
     */
public void updateMenuView(boolean cleared) {
    final ViewGroup parent = (ViewGroup) mMenuView;
    if (parent == null)
        return;
    int childIndex = 0;
    if (mMenu != null) {
        mMenu.flagActionItems();
        ArrayList<MenuItemImpl> visibleItems = mMenu.getVisibleItems();
        final int itemCount = visibleItems.size();
        for (int i = 0; i < itemCount; i++) {
            MenuItemImpl item = visibleItems.get(i);
            if (shouldIncludeItem(childIndex, item)) {
                final View convertView = parent.getChildAt(childIndex);
                final MenuItemImpl oldItem = convertView instanceof MenuView.ItemView ? ((MenuView.ItemView) convertView).getItemData() : null;
                final View itemView = getItemView(item, convertView, parent);
                if (item != oldItem) {
                    // Don't let old states linger with new data.
                    itemView.setPressed(false);
                    if (IS_HONEYCOMB)
                        itemView.jumpDrawablesToCurrentState();
                }
                if (itemView != convertView) {
                    addItemView(itemView, childIndex);
                }
                childIndex++;
            }
        }
    }
    // Remove leftover views.
    while (childIndex < parent.getChildCount()) {
        if (!filterLeftoverView(parent, childIndex)) {
            childIndex++;
        }
    }
}

Example 17 with ViewGroup

use of android.view.ViewGroup in project SimplifyReader by chentao0707.

the class SwipeBackLayout method attachToActivity.

public void attachToActivity(Activity activity) {
    mActivity = activity;
    TypedArray a = activity.getTheme().obtainStyledAttributes(new int[] { android.R.attr.windowBackground });
    int background = a.getResourceId(0, 0);
    a.recycle();
    ViewGroup decor = (ViewGroup) activity.getWindow().getDecorView().findViewById(Window.ID_ANDROID_CONTENT);
    ViewGroup decorChild = (ViewGroup) decor.getChildAt(0);
    decorChild.setBackgroundResource(background);
    decor.removeView(decorChild);
    addView(decorChild);
    setContentView(decorChild);
    decor.addView(this);
}

Example 18 with ViewGroup

use of android.view.ViewGroup in project SimplifyReader by chentao0707.

the class ViewDragHelper method canScroll.

/**
     * Tests scrollability within child views of v given a delta of dx.
     *
     * @param v      View to test for horizontal scrollability
     * @param checkV Whether the view v passed should itself be checked for
     *               scrollability (true), or just its children (false).
     * @param dx     Delta scrolled in pixels along the X axis
     * @param dy     Delta scrolled in pixels along the Y axis
     * @param x      X coordinate of the active touch point
     * @param y      Y coordinate of the active touch point
     * @return true if child views of v can be scrolled by delta of dx.
     */
protected boolean canScroll(View v, boolean checkV, int dx, int dy, int x, int y) {
    if (v instanceof ViewGroup) {
        final ViewGroup group = (ViewGroup) v;
        final int scrollX = v.getScrollX();
        final int scrollY = v.getScrollY();
        final int count = group.getChildCount();
        // first.
        for (int i = count - 1; i >= 0; i--) {
            // TODO: Add versioned support here for transformed views.
            // This will not work for transformed views in Honeycomb+
            final View child = group.getChildAt(i);
            if (x + scrollX >= child.getLeft() && x + scrollX < child.getRight() && y + scrollY >= child.getTop() && y + scrollY < child.getBottom() && canScroll(child, true, dx, dy, x + scrollX - child.getLeft(), y + scrollY - child.getTop())) {
                return true;
            }
        }
    }
    return checkV && (ViewCompat.canScrollHorizontally(v, -dx) || ViewCompat.canScrollVertically(v, -dy));
}

Example 19 with ViewGroup

use of android.view.ViewGroup in project Launcher3 by chislon.

the class AppsCustomizeTabHost method setVisibilityOfSiblingsWithLowerZOrder.

private void setVisibilityOfSiblingsWithLowerZOrder(int visibility) {
    ViewGroup parent = (ViewGroup) getParent();
    if (parent == null)
        return;
    View overviewPanel = ((Launcher) getContext()).getOverviewPanel();
    final int count = parent.getChildCount();
    if (!isChildrenDrawingOrderEnabled()) {
        for (int i = 0; i < count; i++) {
            final View child = parent.getChildAt(i);
            if (child == this) {
                break;
            } else {
                if (child.getVisibility() == GONE || child == overviewPanel) {
                    continue;
                }
                child.setVisibility(visibility);
            }
        }
    } else {
        throw new RuntimeException("Failed; can't get z-order of views");
    }
}

Example 20 with ViewGroup

use of android.view.ViewGroup in project Launcher3 by chislon.

the class FocusHelper method handleTabKeyEvent.

/**
     * Handles key events in the tab widget.
     */
static boolean handleTabKeyEvent(AccessibleTabView v, int keyCode, KeyEvent e) {
    if (!LauncherAppState.getInstance().isScreenLarge())
        return false;
    final FocusOnlyTabWidget parent = (FocusOnlyTabWidget) v.getParent();
    final TabHost tabHost = findTabHostParent(parent);
    final ViewGroup contents = tabHost.getTabContentView();
    final int tabCount = parent.getTabCount();
    final int tabIndex = parent.getChildTabIndex(v);
    final int action = e.getAction();
    final boolean handleKeyEvent = (action != KeyEvent.ACTION_UP);
    boolean wasHandled = false;
    switch(keyCode) {
        case KeyEvent.KEYCODE_DPAD_LEFT:
            if (handleKeyEvent) {
                // Select the previous tab
                if (tabIndex > 0) {
                    parent.getChildTabViewAt(tabIndex - 1).requestFocus();
                }
            }
            wasHandled = true;
            break;
        case KeyEvent.KEYCODE_DPAD_RIGHT:
            if (handleKeyEvent) {
                // Select the next tab, or if the last tab has a focus right id, select that
                if (tabIndex < (tabCount - 1)) {
                    parent.getChildTabViewAt(tabIndex + 1).requestFocus();
                } else {
                    if (v.getNextFocusRightId() != View.NO_ID) {
                        tabHost.findViewById(v.getNextFocusRightId()).requestFocus();
                    }
                }
            }
            wasHandled = true;
            break;
        case KeyEvent.KEYCODE_DPAD_UP:
            // Do nothing
            wasHandled = true;
            break;
        case KeyEvent.KEYCODE_DPAD_DOWN:
            if (handleKeyEvent) {
                // Select the content view
                contents.requestFocus();
            }
            wasHandled = true;
            break;
        default:
            break;
    }
    return wasHandled;
}