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Merge "Add prepainting background while swiping to dismiss."

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This commit is contained in:
Fan Zhang
2019-03-28 21:11:25 +00:00
committed by Android (Google) Code Review
parent e422437d75 ab0bc669ae
commit 860accbcd1
3 changed files with 39 additions and 2 deletions
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38
src/com/android/settings/homepage/contextualcards/slices/SwipeDismissalDelegate.java
View File

@@ -18,6 +18,10 @@ package com.android.settings.homepage.contextualcards.slices;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.RectF;
import android.graphics.drawable.Drawable;
import android.view.View;
import android.widget.ViewFlipper;
import androidx.annotation.NonNull;
@@ -29,7 +33,7 @@ import com.android.settings.homepage.contextualcards.ContextualCard;
public class SwipeDismissalDelegate extends ItemTouchHelper.Callback {
private static final String TAG = "DismissItemTouchHelper";
private static final String TAG = "SwipeDismissalDelegate";
public interface Listener {
void onSwiped(int position);
@@ -37,10 +41,18 @@ public class SwipeDismissalDelegate extends ItemTouchHelper.Callback {
private final Context mContext;
private final SwipeDismissalDelegate.Listener mListener;
private final Drawable mIconDelete;
private final Paint mBgPaint;
private final int mBgCornerRadius;
public SwipeDismissalDelegate(Context context, SwipeDismissalDelegate.Listener listener) {
mContext = context;
mListener = listener;
mIconDelete = mContext.getDrawable(R.drawable.ic_delete);
mBgPaint = new Paint();
mBgPaint.setColor(mContext.getColor(R.color.homepage_card_dismissal_background));
mBgCornerRadius = mContext.getResources()
.getDimensionPixelSize(R.dimen.homepage_card_corner_radius);
}
/**
@@ -93,6 +105,30 @@ public class SwipeDismissalDelegate extends ItemTouchHelper.Callback {
@NonNull RecyclerView.ViewHolder viewHolder, float dX, float dY, int actionState,
boolean isCurrentlyActive) {
super.onChildDraw(c, recyclerView, viewHolder, dX, dY, actionState, isCurrentlyActive);
final View itemView = viewHolder.itemView;
final int iconMargin = mContext.getResources()
.getDimensionPixelSize(R.dimen.homepage_card_dismissal_side_margin);
final int iconTop =
itemView.getTop() + (itemView.getHeight() - mIconDelete.getIntrinsicHeight()) / 2;
final int iconBottom = iconTop + mIconDelete.getIntrinsicHeight();
if (dX > 0) { //swipe to the right
final int iconLeft = itemView.getLeft() + iconMargin;
final int iconRight = iconLeft + mIconDelete.getIntrinsicWidth();
final RectF rect = new RectF(itemView.getLeft(), itemView.getTop(),
itemView.getLeft() + ((int) dX) + mBgCornerRadius, itemView.getBottom());
mIconDelete.setBounds(iconLeft, iconTop, iconRight, iconBottom);
c.drawRoundRect(rect, mBgCornerRadius, mBgCornerRadius, mBgPaint);
} else if (dX < 0) {
final int iconRight = itemView.getRight() - iconMargin;
final int iconLeft = iconRight - mIconDelete.getIntrinsicWidth();
final RectF rect = new RectF(itemView.getRight() + ((int) dX), itemView.getTop(),
itemView.getRight(), itemView.getBottom());
mIconDelete.setBounds(iconLeft, iconTop, iconRight, iconBottom);
c.drawRoundRect(rect, mBgCornerRadius, mBgCornerRadius, mBgPaint);
}
mIconDelete.draw(c);
}
private int getInitialViewId(RecyclerView.ViewHolder viewHolder) {