Adapting ScrollableView.height to the tallest child when Ti.UI.SIZE.

android/modules/ui/src/java/ti/modules/titanium/ui/widget/TiUIScrollableView.java

@@ -95,12 +95,21 @@ public boolean onInterceptTouchEvent(MotionEvent event) {
 			@Override
 			protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
 				TiCompositeLayout.LayoutParams layoutParams = (TiCompositeLayout.LayoutParams) mContainer.getLayoutParams();
-
 				if (layoutParams.sizeOrFillHeightEnabled && !layoutParams.autoFillsHeight) {
-					int index = getCurrentItem();
-					if (index < mViews.size()) {
-						TiUIView view = mViews.get(index).getOrCreateView();
-						int height = view.getLayoutParams().optionHeight.getAsPixels(this);
+
+					int mode = MeasureSpec.getMode(heightMeasureSpec);
+					// Unspecified means that the ViewPager is in a ScrollView WRAP_CONTENT.
+					// At Most means that the ViewPager is not in a ScrollView WRAP_CONTENT.
+					if (mode == MeasureSpec.UNSPECIFIED || mode == MeasureSpec.AT_MOST) {
+						// super has to be called in the beginning so the child views can be initialized.
+						super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+						int height = 0;
+						for (int i = 0; i < getChildCount(); i++) {
+							View child = getChildAt(i);
+							child.measure(widthMeasureSpec, MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
+							int h = child.getMeasuredHeight();
+							if (h > height) height = h;
+						}
 						heightMeasureSpec = MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY);
 					}
 				}