Java Code Examples for androidx.recyclerview.widget.StaggeredGridLayoutManager#getSpanCount()
The following examples show how to use
androidx.recyclerview.widget.StaggeredGridLayoutManager#getSpanCount() .
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Example 1
| Source File: PostsActivity.java From Ruisi with Apache License 2.0 | 6 votes |
|
@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.menu:
if (getType() == PostListAdapter.TYPE_IMAGE) {
StaggeredGridLayoutManager m = (StaggeredGridLayoutManager) mLayoutManager;
int span = m.getSpanCount();
if (span == 1) {
m.setSpanCount(2);
} else {
m.setSpanCount(1);
}
} else {
if (isLogin()) {
Intent i = new Intent(this, NewPostActivity.class);
i.putExtra(NewPostActivity.FID, fid);
i.putExtra(NewPostActivity.TITLE, title);
startActivityForResult(i, 0);
}
}
break;
default:
break;
}
}
Example 2
| Source File: FamiliarRecyclerView.java From FamiliarRecyclerView with MIT License | 6 votes |
|
public int getFirstVisiblePosition() {
LayoutManager layoutManager = getLayoutManager();
if (null == layoutManager) return 0;
int ret = -1;
switch (mLayoutManagerType) {
case LAYOUT_MANAGER_TYPE_LINEAR:
ret = ((LinearLayoutManager) layoutManager).findFirstCompletelyVisibleItemPosition() - getHeaderViewsCount();
break;
case LAYOUT_MANAGER_TYPE_GRID:
ret = ((GridLayoutManager) layoutManager).findFirstCompletelyVisibleItemPosition() - getHeaderViewsCount();
break;
case LAYOUT_MANAGER_TYPE_STAGGERED_GRID:
StaggeredGridLayoutManager tempStaggeredGridLayoutManager = (StaggeredGridLayoutManager) layoutManager;
int[] firstVisibleItemPositions = new int[tempStaggeredGridLayoutManager.getSpanCount()];
tempStaggeredGridLayoutManager.findFirstCompletelyVisibleItemPositions(firstVisibleItemPositions);
ret = firstVisibleItemPositions[0] - getHeaderViewsCount();
break;
}
return ret < 0 ? 0 : ret;
}
Example 3
| Source File: EasyRefreshLayout.java From DoraemonKit with Apache License 2.0 | 5 votes |
|
/**
* 最后一个的位置
*/
private int getLastVisiBleItem() {
RecyclerView.LayoutManager layoutManager = mRecyclerView.getLayoutManager();
int lastVisibleItemPosition = -1;
int layoutManagerType = 0;
if (layoutManager instanceof GridLayoutManager) {
layoutManagerType = 1;
} else if (layoutManager instanceof LinearLayoutManager) {
layoutManagerType = 0;
} else if (layoutManager instanceof StaggeredGridLayoutManager) {
layoutManagerType = 2;
} else {
throw new RuntimeException(
"Unsupported LayoutManager used. Valid ones are LinearLayoutManager, GridLayoutManager and StaggeredGridLayoutManager");
}
switch (layoutManagerType) {
case 0:
lastVisibleItemPosition = ((LinearLayoutManager) layoutManager).findLastVisibleItemPosition();
break;
case 1:
lastVisibleItemPosition = ((GridLayoutManager) layoutManager).findLastVisibleItemPosition();
break;
case 2:
StaggeredGridLayoutManager staggeredGridLayoutManager = (StaggeredGridLayoutManager) layoutManager;
int[] lastPositions = new int[staggeredGridLayoutManager.getSpanCount()];
staggeredGridLayoutManager.findLastVisibleItemPositions(lastPositions);
lastVisibleItemPosition = findMax(lastPositions);
break;
}
return lastVisibleItemPosition;
}
Example 4
| Source File: HorizontalScrollCompat.java From SmoothRefreshLayout with MIT License | 5 votes |
|
public static boolean canAutoLoadMore(View view) {
if (ViewCatcherUtil.isRecyclerView(view)) {
RecyclerView recyclerView = (RecyclerView) view;
RecyclerView.LayoutManager manager = recyclerView.getLayoutManager();
if (manager == null) {
return false;
}
int lastVisiblePosition = 0;
if (manager instanceof LinearLayoutManager) {
LinearLayoutManager linearManager = ((LinearLayoutManager) manager);
if (linearManager.getOrientation() != RecyclerView.HORIZONTAL) {
return false;
}
lastVisiblePosition = linearManager.findLastVisibleItemPosition();
} else if (manager instanceof StaggeredGridLayoutManager) {
StaggeredGridLayoutManager gridLayoutManager = (StaggeredGridLayoutManager) manager;
if (gridLayoutManager.getOrientation() != RecyclerView.HORIZONTAL) {
return false;
}
int[] lastPositions = new int[gridLayoutManager.getSpanCount()];
gridLayoutManager.findLastVisibleItemPositions(lastPositions);
for (int value : lastPositions) {
if (value > lastVisiblePosition) {
lastVisiblePosition = value;
}
}
}
RecyclerView.Adapter adapter = recyclerView.getAdapter();
return adapter != null
&& adapter.getItemCount() > 0
&& lastVisiblePosition >= 0
&& lastVisiblePosition >= adapter.getItemCount() - 1;
}
return false;
}
Example 5
| Source File: HorizontalScrollCompat.java From SmoothRefreshLayout with MIT License | 5 votes |
|
public static boolean canAutoRefresh(View view) {
if (ViewCatcherUtil.isRecyclerView(view)) {
RecyclerView recyclerView = (RecyclerView) view;
RecyclerView.LayoutManager manager = recyclerView.getLayoutManager();
if (manager == null) {
return false;
}
int firstVisiblePosition = -1;
if (manager instanceof LinearLayoutManager) {
LinearLayoutManager linearManager = ((LinearLayoutManager) manager);
if (linearManager.getOrientation() != RecyclerView.HORIZONTAL) {
return false;
}
firstVisiblePosition = linearManager.findFirstVisibleItemPosition();
} else if (manager instanceof StaggeredGridLayoutManager) {
StaggeredGridLayoutManager gridLayoutManager = (StaggeredGridLayoutManager) manager;
if (gridLayoutManager.getOrientation() != RecyclerView.HORIZONTAL) {
return false;
}
int[] firstPositions = new int[gridLayoutManager.getSpanCount()];
gridLayoutManager.findFirstVisibleItemPositions(firstPositions);
for (int value : firstPositions) {
if (value == 0) {
firstVisiblePosition = 0;
break;
}
}
}
RecyclerView.Adapter adapter = recyclerView.getAdapter();
return adapter != null && firstVisiblePosition == 0;
}
return false;
}
Example 6
| Source File: LayoutManagerUtil.java From RvHelper with Apache License 2.0 | 5 votes |
|
private static int caseStaggeredGrid(RecyclerView.LayoutManager layoutManager, boolean findFirst) {
StaggeredGridLayoutManager staggeredGridLayoutManager = (StaggeredGridLayoutManager) layoutManager;
int[] positions = new int[staggeredGridLayoutManager.getSpanCount()];
if (findFirst) {
staggeredGridLayoutManager.findFirstVisibleItemPositions(positions);
Arrays.sort(positions);
return positions[0];
} else {
staggeredGridLayoutManager.findLastVisibleItemPositions(positions);
Arrays.sort(positions);
return positions[positions.length - 1];
}
}
Example 7
| Source File: FamiliarDefaultItemDecoration.java From FamiliarRecyclerView with MIT License | 5 votes |
|
private void initLayoutManagerType() {
mLayoutManagerType = mFamiliarRecyclerView.getCurLayoutManagerType();
RecyclerView.LayoutManager layoutManager = mFamiliarRecyclerView.getLayoutManager();
switch (mLayoutManagerType) {
case FamiliarRecyclerView.LAYOUT_MANAGER_TYPE_LINEAR:
LinearLayoutManager curLinearLayoutManager = (LinearLayoutManager) layoutManager;
if (curLinearLayoutManager.getOrientation() == LinearLayoutManager.HORIZONTAL) {
mOrientation = OrientationHelper.HORIZONTAL;
} else {
mOrientation = OrientationHelper.VERTICAL;
}
break;
case FamiliarRecyclerView.LAYOUT_MANAGER_TYPE_GRID:
GridLayoutManager curGridLayoutManager = (GridLayoutManager) layoutManager;
mGridSpanCount = curGridLayoutManager.getSpanCount();
if (curGridLayoutManager.getOrientation() == LinearLayoutManager.HORIZONTAL) {
mOrientation = OrientationHelper.HORIZONTAL;
} else {
mOrientation = OrientationHelper.VERTICAL;
}
break;
case FamiliarRecyclerView.LAYOUT_MANAGER_TYPE_STAGGERED_GRID:
StaggeredGridLayoutManager curStaggeredGridLayoutManager = (StaggeredGridLayoutManager) layoutManager;
mGridSpanCount = curStaggeredGridLayoutManager.getSpanCount();
if (curStaggeredGridLayoutManager.getOrientation() == LinearLayoutManager.HORIZONTAL) {
mOrientation = OrientationHelper.HORIZONTAL;
} else {
mOrientation = OrientationHelper.VERTICAL;
}
break;
default:
mLayoutManagerType = FamiliarRecyclerView.LAYOUT_MANAGER_TYPE_LINEAR;
}
initDivisible();
}
Example 8
| Source File: FamiliarRecyclerView.java From FamiliarRecyclerView with MIT License | 5 votes |
|
public int getLastVisiblePosition() {
LayoutManager layoutManager = getLayoutManager();
if (null == layoutManager) return -1;
int curItemCount = (null != mReqAdapter ? mReqAdapter.getItemCount() - 1 : 0);
int ret = -1;
switch (mLayoutManagerType) {
case LAYOUT_MANAGER_TYPE_LINEAR:
ret = ((LinearLayoutManager) layoutManager).findLastCompletelyVisibleItemPosition() - getHeaderViewsCount();
if (ret > curItemCount) {
ret -= getFooterViewsCount();
}
break;
case LAYOUT_MANAGER_TYPE_GRID:
ret = ((GridLayoutManager) layoutManager).findLastCompletelyVisibleItemPosition() - getHeaderViewsCount();
if (ret > curItemCount) {
ret -= getFooterViewsCount();
}
break;
case LAYOUT_MANAGER_TYPE_STAGGERED_GRID:
StaggeredGridLayoutManager tempStaggeredGridLayoutManager = (StaggeredGridLayoutManager) layoutManager;
int[] lastVisibleItemPositions = new int[tempStaggeredGridLayoutManager.getSpanCount()];
tempStaggeredGridLayoutManager.findLastCompletelyVisibleItemPositions(lastVisibleItemPositions);
if (lastVisibleItemPositions.length > 0) {
int maxPos = lastVisibleItemPositions[0];
for (int curPos : lastVisibleItemPositions) {
if (curPos > maxPos) maxPos = curPos;
}
ret = maxPos - getHeaderViewsCount();
if (ret > curItemCount) {
ret -= getFooterViewsCount();
}
}
break;
}
return ret < 0 ? (null != mReqAdapter ? mReqAdapter.getItemCount() - 1 : 0) : ret;
}
Example 9
| Source File: FamiliarRecyclerViewOnScrollListener.java From FamiliarRecyclerView with MIT License | 5 votes |
|
public FamiliarRecyclerViewOnScrollListener(RecyclerView.LayoutManager layoutManager) {
if (layoutManager.getClass().isAssignableFrom(LinearLayoutManager.class)) {
mLayoutManagerType = 1;
mLinearLayoutManager = (LinearLayoutManager) layoutManager;
} else if (layoutManager.getClass().isAssignableFrom(GridLayoutManager.class)) {
mLayoutManagerType = 2;
mGridLayoutManager = (GridLayoutManager) layoutManager;
} else if (layoutManager.getClass().isAssignableFrom(StaggeredGridLayoutManager.class)) {
mLayoutManagerType = 3;
mStaggeredGridLayoutManager = (StaggeredGridLayoutManager) layoutManager;
mStaggeredLastPositions = new int[mStaggeredGridLayoutManager.getSpanCount()];
mStaggeredFirstPositions = new int[mStaggeredGridLayoutManager.getSpanCount()];
}
}
Example 10
| Source File: EndlessRecyclerViewScrollListener.java From adamant-android with GNU General Public License v3.0 | 4 votes |
|
public EndlessRecyclerViewScrollListener(StaggeredGridLayoutManager layoutManager) {
this.mLayoutManager = layoutManager;
visibleThreshold = visibleThreshold * layoutManager.getSpanCount();
}
Example 11
| Source File: EndlessUpScrollListener.java From adamant-android with GNU General Public License v3.0 | 4 votes |
|
public EndlessUpScrollListener(StaggeredGridLayoutManager layoutManager) {
this.mLayoutManager = layoutManager;
visibleThreshold = visibleThreshold * layoutManager.getSpanCount();
}
Example 12
| Source File: EndlessRecyclerViewScrollListener.java From grblcontroller with GNU General Public License v3.0 | 4 votes |
|
public EndlessRecyclerViewScrollListener(StaggeredGridLayoutManager layoutManager) {
this.mLayoutManager = layoutManager;
visibleThreshold = visibleThreshold * layoutManager.getSpanCount();
}
Example 13
| Source File: UltimateRecyclerView.java From UltimateRecyclerView with Apache License 2.0 | 4 votes |
|
private void scroll_load_more_detection(RecyclerView recyclerView) {
RecyclerView.LayoutManager layoutManager = recyclerView.getLayoutManager();
if (layoutManagerType == null) {
if (layoutManager instanceof GridLayoutManager) {
layoutManagerType = LAYOUT_MANAGER_TYPE.GRID;
} else if (layoutManager instanceof StaggeredGridLayoutManager) {
layoutManagerType = LAYOUT_MANAGER_TYPE.STAGGERED_GRID;
} else if (layoutManager instanceof LinearLayoutManager) {
layoutManagerType = LAYOUT_MANAGER_TYPE.LINEAR;
} else {
throw new RuntimeException("Unsupported LayoutManager used. Valid ones are LinearLayoutManager, GridLayoutManager and StaggeredGridLayoutManager");
}
}
mTotalItemCount = layoutManager.getItemCount();
mVisibleItemCount = layoutManager.getChildCount();
switch (layoutManagerType) {
case LINEAR:
mFirstVisibleItem = mRecyclerViewHelper.findFirstVisibleItemPosition();
lastVisibleItemPosition = mRecyclerViewHelper.findLastVisibleItemPosition();
break;
case GRID:
if (layoutManager instanceof GridLayoutManager) {
GridLayoutManager ly = (GridLayoutManager) layoutManager;
lastVisibleItemPosition = ly.findLastVisibleItemPosition();
mFirstVisibleItem = ly.findFirstVisibleItemPosition();
}
break;
case STAGGERED_GRID:
if (layoutManager instanceof StaggeredGridLayoutManager) {
StaggeredGridLayoutManager sy = (StaggeredGridLayoutManager) layoutManager;
if (mlastPositionsStaggeredGridLayout == null)
mlastPositionsStaggeredGridLayout = new int[sy.getSpanCount()];
sy.findLastVisibleItemPositions(mlastPositionsStaggeredGridLayout);
lastVisibleItemPosition = findMax(mlastPositionsStaggeredGridLayout);
sy.findFirstVisibleItemPositions(mlastPositionsStaggeredGridLayout);
mFirstVisibleItem = findMin(mlastPositionsStaggeredGridLayout);
}
break;
}
if (automaticLoadMoreEnabled) {
if (mTotalItemCount > previousTotal) {
automaticLoadMoreEnabled = false;
previousTotal = mTotalItemCount;
}
}
boolean bottomEdgeHit = (mTotalItemCount - mVisibleItemCount) <= mFirstVisibleItem;
if (bottomEdgeHit) {
if (mIsLoadMoreWidgetEnabled) {
/**auto activate load more**/
if (!automaticLoadMoreEnabled) {
onLoadMoreListener.loadMore(mRecyclerView.getAdapter().getItemCount(), lastVisibleItemPosition);
automaticLoadMoreEnabled = true;
}
}
mAdapter.internalExecuteLoadingView();
previousTotal = mTotalItemCount;
}
}
Example 14
| Source File: EndlessRecyclerViewScrollListener.java From android-app with GNU General Public License v3.0 | 4 votes |
|
public EndlessRecyclerViewScrollListener(StaggeredGridLayoutManager layoutManager) {
this.mLayoutManager = layoutManager;
visibleThreshold = visibleThreshold * layoutManager.getSpanCount();
}
