package com.lqr.emoji;
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import android.content.Context;
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import android.text.TextUtils;
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import android.util.Log;
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import android.view.Gravity;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.AdapterView;
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import android.widget.GridView;
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import android.widget.RelativeLayout;
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import androidx.viewpager.widget.PagerAdapter;
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import java.util.List;
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import static com.lqr.emoji.EmotionLayout.EMOJI_PER_PAGE;
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import static com.lqr.emoji.EmotionLayout.STICKER_PER_PAGE;
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/**
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* CSDN_LQR
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* 表情控件的ViewPager适配器(emoji + 贴图)
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*/
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public class EmotionViewPagerAdapter extends PagerAdapter {
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private int mPageCount = 0;
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private int mEmotionLayoutWidth;
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private int mEmotionLayoutHeight;
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private IEmotionSelectedListener listener;
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public EmotionViewPagerAdapter(int emotionLayoutWidth, int emotionLayoutHeight, boolean stickerVisible, IEmotionSelectedListener listener) {
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mEmotionLayoutWidth = emotionLayoutWidth;
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mEmotionLayoutHeight = emotionLayoutHeight;
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mPageCount = (int) Math.ceil(EmojiManager.getDisplayCount() / (float) EMOJI_PER_PAGE);
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if (stickerVisible) {
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for (int i = 0; i < StickerManager.getInstance().getStickerCategories().size(); i++) {
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mPageCount += StickerManager.getInstance().getStickerCategories().get(i).getStickers().size() / STICKER_PER_PAGE;
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}
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}
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this.listener = listener;
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}
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@Override
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public int getCount() {
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return mPageCount == 0 ? 1 : mPageCount;
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}
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@Override
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public boolean isViewFromObject(View view, Object object) {
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return view == object;
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}
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@Override
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public Object instantiateItem(ViewGroup container, int position) {
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Context context = container.getContext();
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RelativeLayout rl = new RelativeLayout(context);
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rl.setGravity(Gravity.CENTER);
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GridView gridView = new GridView(context);
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RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
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params.addRule(RelativeLayout.CENTER_IN_PARENT);
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gridView.setLayoutParams(params);
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gridView.setGravity(Gravity.CENTER);
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int tabPosition = positionToCategoryTabIndex(position);
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gridView.setTag((tabPosition & 0xFFF) << 12 | (position & 0xFFF)); // category index | pageIndex
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if (tabPosition == 0) {
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gridView.setOnItemClickListener(emojiListener);
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gridView.setAdapter(new EmojiAdapter(context, mEmotionLayoutWidth, mEmotionLayoutHeight, position * EMOJI_PER_PAGE));
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gridView.setNumColumns(EmotionLayout.EMOJI_COLUMNS);
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} else {
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int categoryStickerPageIndex = positionToCategoryPageIndex(position);
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StickerCategory category = StickerManager.getInstance().getCategory(StickerManager.getInstance().getStickerCategories().get(tabPosition - 1).getName());
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gridView.setOnItemClickListener(stickerListener);
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gridView.setAdapter(new StickerAdapter(context, category, mEmotionLayoutWidth, mEmotionLayoutHeight, categoryStickerPageIndex * STICKER_PER_PAGE));
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gridView.setNumColumns(EmotionLayout.STICKER_COLUMNS);
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}
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rl.addView(gridView);
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container.addView(rl);
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return rl;
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}
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/**
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* 根据categoryTabIndex计算page position
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*
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* @param categoryTabIndex
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* @return
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*/
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int categoryTabIndexToPagePosition(int categoryTabIndex) {
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int position = (int) Math.ceil(EmojiManager.getDisplayCount() / (float) EMOJI_PER_PAGE);
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if (categoryTabIndex == 0) {
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return 0;
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} else {
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for (int i = 0; i < categoryTabIndex - 1; i++) {
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position += (int) Math.ceil(StickerManager.getInstance().getStickerCategories().get(i).getStickers().size() / (float) EmotionLayout.STICKER_PER_PAGE);
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}
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}
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return position;
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}
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/**
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* 根据page position，计算tab index
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*
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* @param position
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* @return
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*/
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int positionToCategoryTabIndex(int position) {
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int categoryTabindex = 0;
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int emojiPageCount = (int) Math.ceil(EmojiManager.getDisplayCount() / (float) EMOJI_PER_PAGE);
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if (position >= emojiPageCount) {
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int stickerPageCount = 0;
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for (int i = 0; i < StickerManager.getInstance().getStickerCategories().size(); i++) {
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stickerPageCount += (int) Math.ceil(StickerManager.getInstance().getStickerCategories().get(i).getStickers().size() / (float) EmotionLayout.STICKER_PER_PAGE);
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if (position < emojiPageCount + stickerPageCount) {
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categoryTabindex = 1 + i;
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break;
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}
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}
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}
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return categoryTabindex;
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}
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/**
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* 根据page position，计算Category内部的pageIndex
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*
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* @param position
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* @return
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*/
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int positionToCategoryPageIndex(int position) {
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int emojiPageCount = (int) Math.ceil(EmojiManager.getDisplayCount() / (float) EMOJI_PER_PAGE);
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int categoryPageIndex = -1;
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if (position < emojiPageCount) {
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categoryPageIndex = position;
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} else {
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int stickerPageCount = 0;
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for (int i = 0; i < StickerManager.getInstance().getStickerCategories().size(); i++) {
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categoryPageIndex = position - emojiPageCount - stickerPageCount;
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stickerPageCount += (int) Math.ceil(StickerManager.getInstance().getStickerCategories().get(i).getStickers().size() / (float) EmotionLayout.STICKER_PER_PAGE);
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if (position < emojiPageCount + stickerPageCount) {
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break;
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}
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}
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}
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return categoryPageIndex;
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}
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@Override
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public void destroyItem(ViewGroup container, int position, Object object) {
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container.removeView((View) object);
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}
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public AdapterView.OnItemClickListener emojiListener = new AdapterView.OnItemClickListener() {
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@Override
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public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
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int index = position + (Integer) parent.getTag() * EmotionLayout.EMOJI_PER_PAGE;
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int count = EmojiManager.getDisplayCount();
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if (position == EmotionLayout.EMOJI_PER_PAGE || index >= count) {
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if (listener != null) {
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listener.onEmojiSelected("/DEL");
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}
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} else {
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String text = EmojiManager.getDisplayText((int) id);
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if (!TextUtils.isEmpty(text)) {
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if (listener != null) {
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listener.onEmojiSelected(text);
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}
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}
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}
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}
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};
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public AdapterView.OnItemClickListener stickerListener = new AdapterView.OnItemClickListener() {
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@Override
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public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
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int tag = (int) parent.getTag();
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int pagePosition = tag & 0xFFF;
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int categoryIndex = (tag >> 12) & 0xFFF;
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int index = position;
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if (pagePosition > 0) {
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int categoryStartPagePosition = categoryTabIndexToPagePosition(categoryIndex);
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index += (pagePosition - categoryStartPagePosition) * EmotionLayout.STICKER_PER_PAGE;
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}
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StickerCategory category = StickerManager.getInstance().getStickerCategories().get(categoryIndex - 1);
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List<StickerItem> stickers = category.getStickers();
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if (index >= stickers.size()) {
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Log.i("CSDN_LQR", "index " + index + " larger than size " + stickers.size());
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return;
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}
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if (listener != null) {
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StickerItem sticker = stickers.get(index);
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StickerCategory real = StickerManager.getInstance().getCategory(sticker.getCategory());
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if (real == null) {
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return;
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}
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listener.onStickerSelected(sticker.getCategory(), sticker.getName(), StickerManager.getInstance().getStickerBitmapPath(sticker.getCategory(), sticker.getName()));
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}
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}
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};
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}
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