@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int height = MeasureSpec.getSize(heightMeasureSpec);
int width = MeasureSpec.getSize(widthMeasureSpec);
int heightMode = MeasureSpec.getMode(heightMeasureSpec);
final View child = getChildAt(0);
if (child == null) {
setMeasuredDimension(0, width);
return;
}
if (child.isLayoutRequested()) {
// Always let child be as tall as it wants.
measureChild(
child, widthMeasureSpec, MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
}
if (heightMode == MeasureSpec.UNSPECIFIED) {
ViewGroup.LayoutParams lp = getLayoutParams();
if (lp.height > 0) {
height = lp.height;
} else {
height = child.getMeasuredHeight();
}
}
setMeasuredDimension(width, height);
}
void a(View paramView, boolean paramBoolean, Rect paramRect)
{
if ((paramView.isLayoutRequested()) || (paramView.getVisibility() == 8))
{
paramRect.set(0, 0, 0, 0);
return;
}
if (paramBoolean)
{
a(paramView, paramRect);
return;
}
paramRect.set(paramView.getLeft(), paramView.getTop(), paramView.getRight(), paramView.getBottom());
}
private void ensurePinnedHeaderLayout(View header) {
if (header.isLayoutRequested()) {
int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), mWidthMode);
int heightSpec;
ViewGroup.LayoutParams layoutParams = header.getLayoutParams();
if (layoutParams != null && layoutParams.height > 0) {
heightSpec = MeasureSpec.makeMeasureSpec(layoutParams.height, MeasureSpec.EXACTLY);
} else {
heightSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
}
header.measure(widthSpec, heightSpec);
header.layout(0, 0, header.getMeasuredWidth(), header.getMeasuredHeight());
}
}
private void prepareContent() {
if (mAnimating) {
return;
}
// Something changed in the content, we need to honor the layout request
// before creating the cached bitmap
final View content = mContent;
if (content.isLayoutRequested()) {
if (mVertical) {
final int childHeight = mHandleHeight;
int height = mBottom - mTop - childHeight - mTopOffset;
content.measure(
MeasureSpec.makeMeasureSpec(mRight - mLeft, MeasureSpec.EXACTLY),
MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY));
content.layout(
0,
mTopOffset + childHeight,
content.getMeasuredWidth(),
mTopOffset + childHeight + content.getMeasuredHeight());
} else {
final int childWidth = mHandle.getWidth();
int width = mRight - mLeft - childWidth - mTopOffset;
content.measure(
MeasureSpec.makeMeasureSpec(width, MeasureSpec.EXACTLY),
MeasureSpec.makeMeasureSpec(mBottom - mTop, MeasureSpec.EXACTLY));
content.layout(
childWidth + mTopOffset,
0,
mTopOffset + childWidth + content.getMeasuredWidth(),
content.getMeasuredHeight());
}
}
// Try only once... we should really loop but it's not a big deal
// if the draw was cancelled, it will only be temporary anyway
content.getViewTreeObserver().dispatchOnPreDraw();
content.buildDrawingCache();
content.setVisibility(View.GONE);
}
private void makeAndAddView(View child) {
FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) child.getLayoutParams();
// FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(350,500);
if (lp == null) {
lp =
new FrameLayout.LayoutParams(
ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
}
addViewInLayout(child, 0, lp, true);
final boolean needToMeasure = child.isLayoutRequested();
if (needToMeasure) {
try {
int childWidthSpec =
getChildMeasureSpec(
getWidthMeasureSpec(),
getPaddingLeft() + getPaddingRight() + lp.leftMargin + lp.rightMargin,
lp.width);
int childHeightSpec =
getChildMeasureSpec(
getHeightMeasureSpec(),
getPaddingTop() + getPaddingBottom() + lp.topMargin + lp.bottomMargin,
lp.height);
System.out.println(
childWidthSpec + " childWidthSpec " + childHeightSpec + " childHeightSpec");
child.measure(childWidthSpec, childHeightSpec);
} catch (Exception e) {
e.printStackTrace();
}
} else {
cleanupLayoutState(child);
}
int w = child.getMeasuredWidth();
int h = child.getMeasuredHeight();
int gravity = lp.gravity;
if (gravity == -1) {
gravity = Gravity.TOP | Gravity.START;
}
// int layoutDirection = getLayoutDirection();
int layoutDirection = 1;
// final int absoluteGravity = Gravity.getAbsoluteGravity(gravity, layoutDirection);
final int absoluteGravity = gravity;
final int verticalGravity = gravity & Gravity.VERTICAL_GRAVITY_MASK;
int childLeft;
int childTop;
switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
case Gravity.CENTER_HORIZONTAL:
childLeft =
(getWidth() + getPaddingLeft() - getPaddingRight() - w) / 2
+ lp.leftMargin
- lp.rightMargin;
break;
case Gravity.END:
childLeft = getWidth() + getPaddingRight() - w - lp.rightMargin;
break;
case Gravity.START:
default:
childLeft = getPaddingLeft() + lp.leftMargin;
break;
}
switch (verticalGravity) {
case Gravity.CENTER_VERTICAL:
childTop =
(getHeight() + getPaddingTop() - getPaddingBottom() - h) / 2
+ lp.topMargin
- lp.bottomMargin;
break;
case Gravity.BOTTOM:
childTop = getHeight() - getPaddingBottom() - h - lp.bottomMargin;
break;
case Gravity.TOP:
default:
childTop = getPaddingTop() + lp.topMargin;
break;
}
child.layout(childLeft, childTop, childLeft + w, childTop + h);
}
@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
private void makeAndAddView(View child) {
FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) child.getLayoutParams();
addViewInLayout(child, 0, lp, true);
final boolean needToMeasure = child.isLayoutRequested();
if (needToMeasure) {
int childWidthSpec =
getChildMeasureSpec(
getWidthMeasureSpec(),
getPaddingLeft() + getPaddingRight() + lp.leftMargin + lp.rightMargin,
lp.width);
int childHeightSpec =
getChildMeasureSpec(
getHeightMeasureSpec(),
getPaddingTop() + getPaddingBottom() + lp.topMargin + lp.bottomMargin,
lp.height);
child.measure(childWidthSpec, childHeightSpec);
} else {
cleanupLayoutState(child);
}
int w = child.getMeasuredWidth();
int h = child.getMeasuredHeight();
int gravity = lp.gravity;
if (gravity == -1) {
gravity = Gravity.TOP | Gravity.START;
}
int layoutDirection = getLayoutDirection();
final int absoluteGravity = Gravity.getAbsoluteGravity(gravity, layoutDirection);
final int verticalGravity = gravity & Gravity.VERTICAL_GRAVITY_MASK;
int childLeft;
int childTop;
switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
case Gravity.CENTER_HORIZONTAL:
childLeft =
(getWidth() + getPaddingLeft() - getPaddingRight() - w) / 2
+ lp.leftMargin
- lp.rightMargin;
break;
case Gravity.END:
childLeft = getWidth() + getPaddingRight() - w - lp.rightMargin;
break;
case Gravity.START:
default:
childLeft = getPaddingLeft() + lp.leftMargin;
break;
}
switch (verticalGravity) {
case Gravity.CENTER_VERTICAL:
childTop =
(getHeight() + getPaddingTop() - getPaddingBottom() - h) / 2
+ lp.topMargin
- lp.bottomMargin;
break;
case Gravity.BOTTOM:
childTop = getHeight() - getPaddingBottom() - h - lp.bottomMargin;
break;
case Gravity.TOP:
default:
childTop = getPaddingTop() + lp.topMargin;
break;
}
child.layout(childLeft, childTop, childLeft + w, childTop + h);
}
