@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
float effectOffset = isSmall(positionOffset) ? 0 : positionOffset;
mLeft = findViewFromObject(position);
mRight = findViewFromObject(position + 1);
animateStack(mLeft, mRight, effectOffset, positionOffsetPixels);
super.onPageScrolled(position, positionOffset, positionOffsetPixels);
}
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
appData.put("CURR_FRAGMENT", getCurrentItem());
// 滑动特别小的距离时，我们认为没有动，可有可无的判断
float effectOffset = isSmall(positionOffset) ? 0 : positionOffset;
mLeft = findViewFromObject(position);
mRight = findViewFromObject(position + 1);
// animateStack(mLeft, mRight, effectOffset, positionOffsetPixels);
if (mContext instanceof MainActivity) ((MainActivity) mContext).setPageDot(getCurrentItem());
super.onPageScrolled(position, positionOffset, positionOffsetPixels);
}
/**
* android4.1+设置PageTransformer会使ViewPager的子页里面的触摸事件异常 （当前看到的子页并非在最上面，所以触摸事件被隐藏在其上面的View给消费了）
* 所以结合setPageTransformer()，在onPageScrolled()里“手动”调用切换页面的动画
*/
@Override
protected void onPageScrolled(int position, float offset, int offsetPixels) {
super.onPageScrolled(position, offset, offsetPixels);
// 下面的源码来自super.onPageScrolled()
int scrollX;
int childCount;
int i;
if (this.mPageTransformer != null) {
scrollX = this.getScrollX();
childCount = this.getChildCount();
for (i = 0; i < childCount; ++i) {
View var15 = this.getChildAt(i);
ViewPager.LayoutParams var16 = (ViewPager.LayoutParams) var15.getLayoutParams();
if (!var16.isDecor) {
float var17 = (float) (var15.getLeft() - scrollX) / (float) this.getClientWidth();
this.mPageTransformer.transformPage(var15, var17);
}
}
}
}
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
if (mState == State.IDLE && positionOffset > 0) {
oldPage = getCurrentItem();
mState = position == oldPage ? State.GOING_RIGHT : State.GOING_LEFT;
}
boolean goingRight = position == oldPage;
if (mState == State.GOING_RIGHT && !goingRight) mState = State.GOING_LEFT;
else if (mState == State.GOING_LEFT && goingRight) mState = State.GOING_RIGHT;
float effectOffset = isSmall(positionOffset) ? 0 : positionOffset;
// mLeft = getChildAt(position);
// mRight = getChildAt(position+1);
mLeft = findViewFromObject(position);
mRight = findViewFromObject(position + 1);
if (mFadeEnabled) animateFade(mLeft, mRight, effectOffset);
if (mOutlineEnabled) animateOutline(mLeft, mRight);
switch (mEffect) {
case Standard:
break;
case Tablet:
animateTablet(mLeft, mRight, effectOffset);
break;
case CubeIn:
animateCube(mLeft, mRight, effectOffset, true);
break;
case CubeOut:
animateCube(mLeft, mRight, effectOffset, false);
break;
case FlipVertical:
animateFlipVertical(mLeft, mRight, positionOffset, positionOffsetPixels);
break;
case FlipHorizontal:
animateFlipHorizontal(mLeft, mRight, effectOffset, positionOffsetPixels);
case Stack:
animateStack(mLeft, mRight, effectOffset, positionOffsetPixels);
break;
case ZoomIn:
animateZoom(mLeft, mRight, effectOffset, true);
break;
case ZoomOut:
animateZoom(mLeft, mRight, effectOffset, false);
break;
case RotateUp:
animateRotate(mLeft, mRight, effectOffset, true);
break;
case RotateDown:
animateRotate(mLeft, mRight, effectOffset, false);
break;
case Accordion:
animateAccordion(mLeft, mRight, effectOffset);
break;
}
super.onPageScrolled(position, positionOffset, positionOffsetPixels);
if (effectOffset == 0) {
disableHardwareLayer();
mState = State.IDLE;
}
}