@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
int count = getChildCount();
int left = 0;
int top = 0;
int right = r - l;
int bottom = b - t;
if (needsSort) {
if (count > 1) { // No need to sort one item.
viewSorter.clear();
for (int i = 0; i < count; i++) {
View child = getChildAt(i);
TiCompositeLayout.LayoutParams params =
(TiCompositeLayout.LayoutParams) child.getLayoutParams();
params.index = i;
viewSorter.add(child);
}
detachAllViewsFromParent();
int i = 0;
for (View child : viewSorter) {
attachViewToParent(child, i++, child.getLayoutParams());
}
}
needsSort = false;
}
int[] horizontal = new int[2];
int[] vertical = new int[2];
int currentHeight = 0;
for (int i = 0; i < count; i++) {
View child = getChildAt(i);
TiCompositeLayout.LayoutParams params =
(TiCompositeLayout.LayoutParams) child.getLayoutParams();
if (child.getVisibility() != View.GONE) {
// Dimension is required from Measure. Positioning is determined here.
int childMeasuredWidth = child.getMeasuredWidth();
int childMeasuredHeight = child.getMeasuredHeight();
computePosition(
params.optionLeft, params.optionRight, childMeasuredWidth, left, right, horizontal);
if (this.vertical) {
computeVerticalLayoutPosition(
currentHeight,
params.optionTop,
params.optionBottom,
childMeasuredHeight,
top,
bottom,
vertical);
} else {
computePosition(
params.optionTop, params.optionBottom, childMeasuredHeight, top, bottom, vertical);
}
if (DBG) {
Log.d(
TAG,
child.getClass().getName()
+ " {"
+ horizontal[0]
+ ","
+ vertical[0]
+ ","
+ horizontal[1]
+ ","
+ vertical[1]
+ "}");
}
int newWidth = horizontal[1] - horizontal[0];
int newHeight = vertical[1] - vertical[0];
if (newWidth != childMeasuredWidth || newHeight != childMeasuredHeight) {
int newWidthSpec = MeasureSpec.makeMeasureSpec(newWidth, MeasureSpec.EXACTLY);
int newHeightSpec = MeasureSpec.makeMeasureSpec(newHeight, MeasureSpec.EXACTLY);
child.measure(newWidthSpec, newHeightSpec);
}
child.layout(horizontal[0], vertical[0], horizontal[1], vertical[1]);
currentHeight += newHeight;
if (params.optionTop != NOT_SET) {
currentHeight += params.optionTop;
}
}
}
}
