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Fix lazy mode after hiding read posts.

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This commit is contained in:
Alex Ning 2020-12-08 18:40:19 +08:00
parent 59baa9c51c
commit 13107b9193
3 changed files with 31 additions and 4 deletions
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16
app/src/main/java/ml/docilealligator/infinityforreddit/adapters/PostRecyclerViewAdapter.java
View File

@ -396,6 +396,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
if (post != null) {
if (post.isRead()) {
if (position < mHideReadPostsIndex) {
post.hidePostInRecyclerView();
holder.itemView.setVisibility(View.GONE);
RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) holder.itemView.getLayoutParams();
params.height = 0;
@ -717,6 +718,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
if (post != null) {
if (post.isRead()) {
if (position < mHideReadPostsIndex) {
post.hidePostInRecyclerView();
holder.itemView.setVisibility(View.GONE);
ViewGroup.LayoutParams params = holder.itemView.getLayoutParams();
params.height = 0;
@ -1218,6 +1220,20 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
mHideReadPostsIndex = getItemCount();
}
public int getNextItemPositionWithoutBeingHidden(int fromPosition) {
int temp = fromPosition;
while (temp >= 0 && temp < super.getItemCount()) {
Post post = getItem(temp);
if (post != null && post.isHiddenInRecyclerView()) {
temp++;
} else {
break;
}
}
return temp;
}
private boolean hasExtraRow() {
return networkState != null && networkState.getStatus() != NetworkState.Status.SUCCESS;
}

8
app/src/main/java/ml/docilealligator/infinityforreddit/fragments/PostFragment.java
View File

@ -331,20 +331,20 @@ public class PostFragment extends Fragment implements FragmentCommunicator {
@Override
public void run() {
if (isInLazyMode && !isLazyModePaused) {
if (isInLazyMode && !isLazyModePaused && mAdapter != null) {
int nPosts = mAdapter.getItemCount();
if (getCurrentPosition() == -1) {
if (mLinearLayoutManager != null) {
setCurrentPosition(mLinearLayoutManager.findFirstVisibleItemPosition());
setCurrentPosition(mAdapter.getNextItemPositionWithoutBeingHidden(mLinearLayoutManager.findFirstVisibleItemPosition()));
} else {
int[] into = new int[2];
setCurrentPosition(mStaggeredGridLayoutManager.findFirstVisibleItemPositions(into)[1]);
setCurrentPosition(mAdapter.getNextItemPositionWithoutBeingHidden(mStaggeredGridLayoutManager.findFirstVisibleItemPositions(into)[1]));
}
}
if (getCurrentPosition() != RecyclerView.NO_POSITION && nPosts > getCurrentPosition()) {
incrementCurrentPosition();
smoothScroller.setTargetPosition(getCurrentPosition());
smoothScroller.setTargetPosition(mAdapter.getNextItemPositionWithoutBeingHidden(getCurrentPosition()));
if (mLinearLayoutManager != null) {
mLinearLayoutManager.startSmoothScroll(smoothScroller);
} else {

11
app/src/main/java/ml/docilealligator/infinityforreddit/post/Post.java
View File

@ -72,6 +72,7 @@ public class Post implements Parcelable {
private boolean saved;
private boolean isCrosspost;
private boolean isRead;
private boolean isHiddenInRecyclerView = false;
private String crosspostParentId;
private ArrayList<Preview> previews = new ArrayList<>();
private ArrayList<Gallery> gallery = new ArrayList<>();
@ -187,6 +188,7 @@ public class Post implements Parcelable {
saved = in.readByte() != 0;
isCrosspost = in.readByte() != 0;
isRead = in.readByte() != 0;
isHiddenInRecyclerView = in.readByte() != 0;
crosspostParentId = in.readString();
in.readTypedList(previews, Preview.CREATOR);
in.readTypedList(gallery, Gallery.CREATOR);
@ -458,6 +460,14 @@ public class Post implements Parcelable {
return isRead;
}
public boolean isHiddenInRecyclerView() {
return isHiddenInRecyclerView;
}
public void hidePostInRecyclerView() {
isHiddenInRecyclerView = true;
}
public String getCrosspostParentId() {
return crosspostParentId;
}
@ -523,6 +533,7 @@ public class Post implements Parcelable {
parcel.writeByte((byte) (saved ? 1 : 0));
parcel.writeByte((byte) (isCrosspost ? 1 : 0));
parcel.writeByte((byte) (isRead ? 1 : 0));
parcel.writeByte((byte) (isHiddenInRecyclerView ? 1 : 0));
parcel.writeString(crosspostParentId);
parcel.writeTypedList(previews);
parcel.writeTypedList(gallery);