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Fix initial scroll position if there's not enough vertical space to hide search bar.

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This commit is contained in:
Alex Hart 2021-06-03 11:26:49 -03:00
parent c23215604d
commit 95dba15db8
2 changed files with 46 additions and 15 deletions
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26
app/src/main/java/org/thoughtcrime/securesms/components/emoji/EmojiPageView.java
View file

@ -21,6 +21,8 @@ import org.thoughtcrime.securesms.components.emoji.EmojiPageViewGridAdapter.Vari
import org.thoughtcrime.securesms.keyboard.emoji.KeyboardPageSearchView;
import org.thoughtcrime.securesms.util.MappingModelList;
import java.util.Objects;
public class EmojiPageView extends FrameLayout implements VariationSelectorListener {
private static final String TAG = Log.tag(EmojiPageView.class);
@ -96,7 +98,29 @@ public class EmojiPageView extends FrameLayout implements VariationSelectorListe
EmojiPageViewGridAdapter adapter = adapterFactory.create();
recyclerView.setAdapter(adapter);
adapter.submitList(getMappingModelList(), () -> layoutManager.scrollToPosition(1));
adapter.submitList(getMappingModelList(), () -> {
layoutManager.scrollToPosition(1);
recyclerView.post(() -> {
if (!searchEnabled || recyclerView.getAdapter() == null) {
return;
}
KeyboardPageSearchView searchView = (KeyboardPageSearchView) layoutManager.findViewByPosition(0);
if (searchView == null) {
return;
}
int allowedScrollDistance = recyclerView.computeVerticalScrollRange() - recyclerView.computeVerticalScrollExtent();
if (allowedScrollDistance < searchView.getMeasuredHeight()) {
View lastView = Objects.requireNonNull(layoutManager.findViewByPosition(recyclerView.getAdapter().getItemCount() - 1));
int scrollDelta = searchView.getMeasuredHeight() - allowedScrollDistance;
int distanceFromBottom = Math.max(0, recyclerView.getMeasuredHeight() - lastView.getBottom());
lastView.setPadding(lastView.getPaddingLeft(), lastView.getPaddingTop(), lastView.getPaddingRight(), lastView.getPaddingBottom() + scrollDelta + distanceFromBottom);
recyclerView.post(() -> layoutManager.scrollToPosition(1));
}
});
});
}
private @NonNull MappingModelList getMappingModelList() {

35
app/src/main/res/layout/emoji_display_item.xml
View file

@ -1,38 +1,45 @@
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="2dp"
android:background="?selectableItemBackground">
android:background="?selectableItemBackground"
android:padding="2dp">
<ImageView
android:id="@+id/emoji_image"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:adjustViewBounds="true"
android:paddingStart="6dp"
android:paddingTop="6dp"
android:paddingEnd="6dp"
android:paddingStart="6dp"
android:adjustViewBounds="true"
android:scaleType="fitCenter" />
android:scaleType="fitCenter"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:src="@drawable/ic_emoji_smiley_24" />
<org.thoughtcrime.securesms.components.emoji.AsciiEmojiView
android:id="@+id/emoji_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingStart="6dp"
android:paddingTop="6dp"
android:paddingEnd="6dp"
android:paddingStart="6dp"
android:visibility="gone"/>
android:visibility="gone"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<androidx.appcompat.widget.AppCompatImageView
android:id="@+id/emoji_variation_hint"
android:layout_width="7dp"
android:layout_height="7dp"
android:layout_gravity="bottom|right|end"
app:srcCompat="@drawable/triangle_bottom_right_corner"
android:tint="@color/core_grey_25"/>
android:tint="@color/core_grey_25"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:srcCompat="@drawable/triangle_bottom_right_corner" />
</FrameLayout>
</androidx.constraintlayout.widget.ConstraintLayout>