final void setState(State state, final boolean... params) {
mState = state;
if (DEBUG) {
Log.d(LOG_TAG, "State: " + mState.name());
}
switch (mState) {
case RESET:
onReset();
break;
case PULL_TO_REFRESH:
onPullToRefresh();
break;
case RELEASE_TO_REFRESH:
onReleaseToRefresh();
break;
case REFRESHING:
case MANUAL_REFRESHING:
onRefreshing(params[0]);
break;
case OVERSCROLLING:
// NO-OP
break;
}
// Call OnPullEventListener
if (null != mOnPullEventListener) {
mOnPullEventListener.onPullEvent(this, mState, mCurrentMode);
}
}
@Override
protected void onReleaseToRefresh() {
super.onReleaseToRefresh();
if (getShowIndicatorInternal()) {
switch (getCurrentMode()) {
case PULL_UP_TO_REFRESH:
mIndicatorIvBottom.releaseToRefresh();
break;
case PULL_DOWN_TO_REFRESH:
mIndicatorIvTop.releaseToRefresh();
break;
}
}
}
@Override
protected void onReleaseToRefresh() {
super.onReleaseToRefresh();
// if (getShowIndicatorInternal()) {
// switch (getCurrentMode()) {
// case PULL_FROM_END:
// mIndicatorIvBottom.releaseToRefresh();
// break;
// case PULL_FROM_START:
// mIndicatorIvTop.releaseToRefresh();
// break;
// default:
// // NO-OP
// break;
// }
// }
}
@Override
protected void onReleaseToRefresh() {
super.onReleaseToRefresh();
if (getShowIndicatorInternal()) {
switch (getCurrentMode()) {
case PULL_FROM_END:
mIndicatorIvBottom.releaseToRefresh();
break;
case PULL_FROM_START:
mIndicatorIvTop.releaseToRefresh();
break;
default:
// NO-OP
break;
}
}
}
/**
* Actions a Pull Event
*
* @return true if the Event has been handled, false if there has been no change
*/
private boolean pullEvent() {
final int newHeight;
final int oldHeight = getScrollY();
switch (mCurrentMode) {
case PULL_UP_TO_REFRESH:
newHeight = Math.round(Math.max(mInitialMotionY - mLastMotionY, 0) / FRICTION);
break;
case PULL_DOWN_TO_REFRESH:
default:
newHeight = Math.round(Math.min(mInitialMotionY - mLastMotionY, 0) / FRICTION);
break;
}
setHeaderScroll(newHeight);
if (newHeight != 0) {
float scale = Math.abs(newHeight) / (float) mHeaderHeight;
switch (mCurrentMode) {
case PULL_UP_TO_REFRESH:
mFooterLayout.onPullY(scale);
break;
case PULL_DOWN_TO_REFRESH:
mHeaderLayout.onPullY(scale);
break;
}
if (mState == PULL_TO_REFRESH && mHeaderHeight < Math.abs(newHeight)) {
mState = RELEASE_TO_REFRESH;
onReleaseToRefresh();
return true;
} else if (mState == RELEASE_TO_REFRESH && mHeaderHeight >= Math.abs(newHeight)) {
mState = PULL_TO_REFRESH;
onPullToRefresh();
return true;
}
}
return oldHeight != newHeight;
}