// suppress this error message to be able to use spaces in higher api levels
@SuppressLint("NewApi")
public void refresh() {
if (mAdapter == null) {
mAdapter = new StackAdapter(mContext, mStacks, mSwipeable);
if (mListView != null) {
mListView.setAdapter(mAdapter);
} else if (mTableLayout != null) {
TableRow tr = null;
for (int i = 0; i < mAdapter.getCount(); i += mColumnNumber) {
// add a new table row with the current context
tr = new TableRow(mTableLayout.getContext());
tr.setOrientation(TableRow.HORIZONTAL);
tr.setLayoutParams(
new TableRow.LayoutParams(
TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.WRAP_CONTENT));
// add as many cards as the number of columns indicates per row
for (int j = 0; j < mColumnNumber; j++) {
if (i + j < mAdapter.getCount()) {
View card = mAdapter.getView(i + j, null, tr);
if (card.getLayoutParams() != null) {
card.setLayoutParams(
new TableRow.LayoutParams(
card.getLayoutParams().width, card.getLayoutParams().height, 1f));
} else {
card.setLayoutParams(
new TableRow.LayoutParams(
TableRow.LayoutParams.MATCH_PARENT,
TableRow.LayoutParams.WRAP_CONTENT,
1f));
}
tr.addView(card);
}
}
mTableLayout.addView(tr);
}
if (tr != null) {
// fill the empty space with spacers
for (int j = mAdapter.getCount() % mColumnNumber; j > 0; j--) {
View space = null;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
space = new Space(tr.getContext());
} else {
space = new View(tr.getContext());
}
space.setLayoutParams(
new TableRow.LayoutParams(
TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.WRAP_CONTENT, 1f));
tr.addView(space);
}
}
}
} else {
mAdapter.setSwipeable(mSwipeable); // in case swipeable changed;
mAdapter.setItems(mStacks);
}
}
public void scrollToY(int y) {
try {
mListView.scrollTo(0, y);
} catch (Exception e) {
e.printStackTrace();
}
}
public void scrollToCard(int pos) {
// int y = 0;
try {
// y = getY(pos);
mListView.smoothScrollToPosition(pos);
} catch (Exception e) {
e.printStackTrace();
}
}
public void setHeader(View header) {
mPlaceholderView.setVisibility(View.VISIBLE);
mListView
.getViewTreeObserver()
.addOnGlobalLayoutListener(
new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
mQuickReturnHeight = mQuickReturnView.getHeight();
mListView.computeScrollY();
mCachedVerticalScrollRange = mListView.getListHeight();
}
});
mListView.setOnScrollListener(
new OnScrollListener() {
@SuppressLint("NewApi")
@Override
public void onScroll(
AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
mScrollY = 0;
int translationY = 0;
if (mListView.scrollYIsComputed()) {
mScrollY = mListView.getComputedScrollY();
}
int rawY =
mPlaceholderView.getTop()
- Math.min(mCachedVerticalScrollRange - mListView.getHeight(), mScrollY);
switch (mState) {
case STATE_OFFSCREEN:
if (rawY <= mMinRawY) {
mMinRawY = rawY;
} else {
mState = STATE_RETURNING;
}
translationY = rawY;
break;
case STATE_ONSCREEN:
if (rawY < -mQuickReturnHeight) {
mState = STATE_OFFSCREEN;
mMinRawY = rawY;
}
translationY = rawY;
break;
case STATE_RETURNING:
translationY = (rawY - mMinRawY) - mQuickReturnHeight;
if (translationY > 0) {
translationY = 0;
mMinRawY = rawY - mQuickReturnHeight;
}
if (rawY > 0) {
mState = STATE_ONSCREEN;
translationY = rawY;
}
if (translationY < -mQuickReturnHeight) {
mState = STATE_OFFSCREEN;
mMinRawY = rawY;
}
break;
}
/** this can be used if the build is below honeycomb * */
if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.HONEYCOMB) {
TranslateAnimation anim = new TranslateAnimation(0, 0, translationY, translationY);
anim.setFillAfter(true);
anim.setDuration(0);
mQuickReturnView.startAnimation(anim);
} else {
mQuickReturnView.setTranslationY(translationY);
}
}
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {}
});
if (header != null) {
try {
mQuickReturnView.removeAllViews();
} catch (Exception e) {
e.printStackTrace();
}
mQuickReturnView.addView(header);
}
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
mQuickReturnView.setText("Default");
mListView.addHeaderView(mHeader);
// adapter o day
String[] array =
new String[] {
"Android", "Android", "Android", "Android", "Android", "Android", "Android", "Android",
"Android", "Android", "Android", "Android", "Android", "Android", "Android", "Android"
};
mListView.setAdapter(
new ArrayAdapter<String>(getActivity(), R.layout.list_item, R.id.text1, array));
mListView
.getViewTreeObserver()
.addOnGlobalLayoutListener(
new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
mQuickReturnHeight = mQuickReturnView.getHeight();
mListView.computeScrollY();
mCachedVerticalScrollRange = mListView.getListHeight();
}
});
mListView.setOnScrollListener(
new OnScrollListener() {
@SuppressLint("NewApi")
@Override
public void onScroll(
AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
mScrollY = 0;
int translationY = 0;
if (mListView.scrollYIsComputed()) {
mScrollY = mListView.getComputedScrollY();
}
Log.e("------", mPlaceHolder.getTop() + "");
int rawY =
mPlaceHolder.getTop()
- Math.min(mCachedVerticalScrollRange - mListView.getHeight(), mScrollY);
switch (mState) {
case STATE_OFFSCREEN:
if (rawY <= mMinRawY) {
mMinRawY = rawY;
} else {
mState = STATE_RETURNING;
}
translationY = rawY;
break;
case STATE_ONSCREEN:
if (rawY < -mQuickReturnHeight) {
mState = STATE_OFFSCREEN;
mMinRawY = rawY;
}
translationY = rawY;
break;
case STATE_RETURNING:
translationY = (rawY - mMinRawY) - mQuickReturnHeight;
if (translationY > 0) {
translationY = 0;
mMinRawY = rawY - mQuickReturnHeight;
}
if (rawY > 0) {
mState = STATE_ONSCREEN;
translationY = rawY;
}
if (translationY < -mQuickReturnHeight) {
mState = STATE_OFFSCREEN;
mMinRawY = rawY;
}
break;
}
/** this can be used if the build is below honeycomb * */
if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.HONEYCOMB) {
anim = new TranslateAnimation(0, 0, translationY, translationY);
anim.setFillAfter(true);
anim.setDuration(0);
mQuickReturnView.startAnimation(anim);
} else {
mQuickReturnView.setTranslationY(translationY);
}
}
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {}
});
}
