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Remove inset divider from last recyclerview element

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This commit is contained in:
Moxie Marlinspike 2017-11-14 12:09:19 -08:00
parent 682abbf66b
commit b42e91134b
1 changed files with 58 additions and 8 deletions
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66
src/org/thoughtcrime/securesms/ConversationListFragment.java
View File

@ -27,6 +27,7 @@ import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.os.AsyncTask;
import android.os.Build;
@ -39,7 +40,6 @@ import android.support.v4.content.Loader;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.view.ActionMode;
import android.support.v7.widget.DividerItemDecoration;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.helper.ItemTouchHelper;
@ -126,13 +126,7 @@ public class ConversationListFragment extends Fragment
list.setHasFixedSize(true);
list.setLayoutManager(new LinearLayoutManager(getActivity()));
list.setItemAnimator(new DeleteItemAnimator());
TypedArray typedArray = getContext().obtainStyledAttributes(new int[]{R.attr.conversation_list_item_divider});
Drawable itemDrawable = typedArray.getDrawable(0);
DividerItemDecoration itemDecoration = new DividerItemDecoration(getActivity(), LinearLayoutManager.VERTICAL);
if (itemDrawable != null) itemDecoration.setDrawable(itemDrawable);
list.addItemDecoration(itemDecoration);
typedArray.recycle();
list.addItemDecoration(new InsetDividerItemDecoration(getActivity()));
new ItemTouchHelper(new ArchiveListenerCallback()).attachToRecyclerView(list);
@ -561,6 +555,62 @@ public class ConversationListFragment extends Fragment
}
}
private static class InsetDividerItemDecoration extends RecyclerView.ItemDecoration {
private Drawable divider;
private final Rect bounds = new Rect();
InsetDividerItemDecoration(Context context) {
TypedArray typedArray = context.obtainStyledAttributes(new int[]{R.attr.conversation_list_item_divider});
this.divider = typedArray.getDrawable(0);
typedArray.recycle();
}
@Override
public void onDraw(Canvas canvas, RecyclerView parent, RecyclerView.State state) {
if (parent.getLayoutManager() == null) {
return;
}
canvas.save();
final int left;
final int right;
if (parent.getClipToPadding()) {
left = parent.getPaddingLeft();
right = parent.getWidth() - parent.getPaddingRight();
canvas.clipRect(left, parent.getPaddingTop(), right, parent.getHeight() - parent.getPaddingBottom());
} else {
left = 0;
right = parent.getWidth();
}
final int childCount = parent.getChildCount();
for (int i = 0; i < childCount-1; i++) {
final View child = parent.getChildAt(i);
parent.getDecoratedBoundsWithMargins(child, bounds);
final int bottom = bounds.bottom + Math.round(child.getTranslationY());
final int top = bottom - divider.getIntrinsicHeight();
divider.setBounds(left, top, right, bottom);
divider.draw(canvas);
}
canvas.restore();
}
@Override
public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
if (divider == null) {
outRect.set(0, 0, 0, 0);
return;
}
outRect.set(0, 0, 0, divider.getIntrinsicHeight());
}
}
}