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Make sure right view is selected as anchor on "more"-expansion

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This commit is contained in:
mvp76 2016-12-06 09:44:46 +01:00
parent 734741c8f4
commit 65b16beb61
1 changed files with 5 additions and 12 deletions
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17
app/src/main/java/org/fdroid/fdroid/views/AppDetailsRecyclerViewAdapter.java
View File

@ -317,14 +317,11 @@ public class AppDetailsRecyclerViewAdapter
descriptionMoreView.setOnClickListener(new View.OnClickListener() { descriptionMoreView.setOnClickListener(new View.OnClickListener() {
@Override @Override
public void onClick(View v) { public void onClick(View v) {
// Remember current scroll position so that we can restore it // Make this "header section" the focused child, so that RecyclerView will use
LinearLayoutManager lm = (LinearLayoutManager) recyclerView.getLayoutManager(); // it as the anchor in the layout process. Otherwise the RV might select another
int pos = lm.findFirstVisibleItemPosition(); // view as the anchor, resulting in that the top of this view is instead scrolled
int posOffset = 0; // off the screen. Refer to LinearLayoutManager.updateAnchorFromChildren(...).
if (pos != RecyclerView.NO_POSITION) { recyclerView.requestChildFocus(itemView, itemView);
View firstChild = recyclerView.getChildAt(0);
posOffset = (firstChild == null) ? 0 : (firstChild.getTop()); // - recyclerView.getPaddingTop());
}
if (TextViewCompat.getMaxLines(descriptionView) != MAX_LINES) { if (TextViewCompat.getMaxLines(descriptionView) != MAX_LINES) {
descriptionView.setMaxLines(MAX_LINES); descriptionView.setMaxLines(MAX_LINES);
descriptionMoreView.setText(R.string.more); descriptionMoreView.setText(R.string.more);
@ -332,10 +329,6 @@ public class AppDetailsRecyclerViewAdapter
descriptionView.setMaxLines(Integer.MAX_VALUE); descriptionView.setMaxLines(Integer.MAX_VALUE);
descriptionMoreView.setText(R.string.less); descriptionMoreView.setText(R.string.less);
} }
if (pos != RecyclerView.NO_POSITION) {
// Restore scroll position
lm.scrollToPositionWithOffset(pos, posOffset);
}
} }
}); });
// Set ALL caps (in a way compatible with SDK 10) // Set ALL caps (in a way compatible with SDK 10)