private void addViewInner(android.view.View child, int index, android.view.ViewGroup
.LayoutParams @params, bool preventRequestLayout)
{
if (mTransition != null)
{
// Don't prevent other add transitions from completing, but cancel remove
// transitions to let them complete the process before we add to the container
mTransition.cancel(android.animation.LayoutTransition.DISAPPEARING);
}
if (child.getParent() != null)
{
throw new System.InvalidOperationException("The specified child already has a parent. "
+ "You must call removeView() on the child's parent first.");
}
if (mTransition != null)
{
mTransition.addChild(this, child);
}
if (!checkLayoutParams(@params))
{
@params = generateLayoutParams(@params);
}
if (preventRequestLayout)
{
child.mLayoutParams = @params;
}
else
{
child.setLayoutParams(@params);
}
if (index < 0)
{
index = mChildrenCount;
}
addInArray(child, index);
// tell our children
if (preventRequestLayout)
{
child.assignParent(this);
}
else
{
child.mParent = this;
}
if (child.hasFocus())
{
requestChildFocus(child, child.findFocus());
}
android.view.View.AttachInfo ai = mAttachInfo;
if (ai != null && (mGroupFlags & FLAG_PREVENT_DISPATCH_ATTACHED_TO_WINDOW) == 0)
{
bool lastKeepOn = ai.mKeepScreenOn;
ai.mKeepScreenOn = false;
child.dispatchAttachedToWindow(mAttachInfo, (mViewFlags & VISIBILITY_MASK));
if (ai.mKeepScreenOn)
{
needGlobalAttributesUpdate(true);
}
ai.mKeepScreenOn = lastKeepOn;
}
onViewAdded(child);
if ((child.mViewFlags & DUPLICATE_PARENT_STATE) == DUPLICATE_PARENT_STATE)
{
mGroupFlags |= FLAG_NOTIFY_CHILDREN_ON_DRAWABLE_STATE_CHANGE;
}
}
/// <summary>Add an item view at the given index.</summary>
/// <remarks>Add an item view at the given index.</remarks>
/// <param name="itemView">View to add</param>
/// <param name="childIndex">Index within the parent to insert at</param>
protected internal virtual void addItemView(android.view.View itemView, int childIndex
)
{
android.view.ViewGroup currentParent = (android.view.ViewGroup)itemView.getParent
();
if (currentParent != null)
{
currentParent.removeView(itemView);
}
((android.view.ViewGroup)mMenuView).addView(itemView, childIndex);
}
/// <summary>Return true if child is an descendant of parent, (or equal to the parent).
/// </summary>
/// <remarks>Return true if child is an descendant of parent, (or equal to the parent).
/// </remarks>
private bool isViewDescendantOf(android.view.View child, android.view.View parent
)
{
if (child == parent)
{
return true;
}
android.view.ViewParent theParent = child.getParent();
return (theParent is android.view.ViewGroup) && isViewDescendantOf((android.view.View
)theParent, parent);
}
public override bool onTouchEvent(android.widget.TextView widget, android.text.Spannable
buffer, android.view.MotionEvent @event)
{
int initialScrollX = -1;
int initialScrollY = -1;
int action = @event.getAction();
if (action == android.view.MotionEvent.ACTION_UP)
{
initialScrollX = android.text.method.Touch.getInitialScrollX(widget, buffer);
initialScrollY = android.text.method.Touch.getInitialScrollY(widget, buffer);
}
bool handled = android.text.method.Touch.onTouchEvent(widget, buffer, @event);
if (widget.isFocused() && !widget.didTouchFocusSelect())
{
if (action == android.view.MotionEvent.ACTION_DOWN)
{
if (isSelecting(buffer))
{
int offset = widget.getOffsetForPosition(@event.getX(), @event.getY());
buffer.setSpan(LAST_TAP_DOWN, offset, offset, android.text.SpannedClass.SPAN_POINT_POINT
);
// Disallow intercepting of the touch events, so that
// users can scroll and select at the same time.
// without this, users would get booted out of select
// mode once the view detected it needed to scroll.
widget.getParent().requestDisallowInterceptTouchEvent(true);
}
}
else
{
if (action == android.view.MotionEvent.ACTION_MOVE)
{
if (isSelecting(buffer) && handled)
{
// Before selecting, make sure we've moved out of the "slop".
// handled will be true, if we're in select mode AND we're
// OUT of the slop
// Turn long press off while we're selecting. User needs to
// re-tap on the selection to enable long press
widget.cancelLongPress();
// Update selection as we're moving the selection area.
// Get the current touch position
int offset = widget.getOffsetForPosition(@event.getX(), @event.getY());
android.text.Selection.extendSelection(buffer, offset);
return true;
}
}
else
{
if (action == android.view.MotionEvent.ACTION_UP)
{
// If we have scrolled, then the up shouldn't move the cursor,
// but we do need to make sure the cursor is still visible at
// the current scroll offset to avoid the scroll jumping later
// to show it.
if ((initialScrollY >= 0 && initialScrollY != widget.getScrollY()) || (initialScrollX
>= 0 && initialScrollX != widget.getScrollX()))
{
widget.moveCursorToVisibleOffset();
return true;
}
int offset = widget.getOffsetForPosition(@event.getX(), @event.getY());
if (isSelecting(buffer))
{
buffer.removeSpan(LAST_TAP_DOWN);
android.text.Selection.extendSelection(buffer, offset);
}
else
{
if (!widget.shouldIgnoreActionUpEvent())
{
android.text.Selection.setSelection(buffer, offset);
}
}
android.text.method.MetaKeyKeyListener.adjustMetaAfterKeypress(buffer);
android.text.method.MetaKeyKeyListener.resetLockedMeta(buffer);
return true;
}
}
}
}
return handled;
}
public virtual android.view.WindowManagerClass.LayoutParams getRootViewLayoutParameter
(android.view.View view)
{
android.view.ViewParent vp = view.getParent();
while (vp != null && !(vp is android.view.ViewRootImpl))
{
vp = vp.getParent();
}
if (vp == null)
{
return null;
}
android.view.ViewRootImpl vr = (android.view.ViewRootImpl)vp;
int N = mRoots.Length;
{
for (int i = 0; i < N; ++i)
{
if (mRoots[i] == vr)
{
return mParams[i];
}
}
}
return null;
}
internal virtual void invalidateGlobalRegion(android.view.View v, android.graphics.Rect
r)
{
// We need to make a new rect here, so as not to modify the one passed
this.globalInvalidateRect.set(r);
this.globalInvalidateRect.union(0, 0, this._enclosing.getWidth(), this._enclosing
.getHeight());
android.view.View p = v;
if (!(v.getParent() != null && v.getParent() is android.view.View))
{
return;
}
bool firstPass = true;
this.parentRect.set(0, 0, 0, 0);
while (p.getParent() != null && p.getParent() is android.view.View && !this.parentRect
.contains(this.globalInvalidateRect))
{
if (!firstPass)
{
this.globalInvalidateRect.offset(p.getLeft() - p.getScrollX(), p.getTop() - p.getScrollY
());
}
firstPass = false;
p = (android.view.View)p.getParent();
this.parentRect.set(p.getScrollX(), p.getScrollY(), p.getWidth() + p.getScrollX()
, p.getHeight() + p.getScrollY());
p.invalidate(this.globalInvalidateRect.left, this.globalInvalidateRect.top, this.
globalInvalidateRect.right, this.globalInvalidateRect.bottom);
}
p.invalidate(this.globalInvalidateRect.left, this.globalInvalidateRect.top, this.
globalInvalidateRect.right, this.globalInvalidateRect.bottom);
}
