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258 changes: 258 additions & 0 deletions
258
app/src/main/java/org/zakariya/stickyheadersapp/adapters/SelectionDemoAdapter.java
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| package org.zakariya.stickyheadersapp.adapters; | ||
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| import android.annotation.SuppressLint; | ||
| import android.text.TextUtils; | ||
| import android.util.Log; | ||
| import android.view.LayoutInflater; | ||
| import android.view.View; | ||
| import android.view.ViewGroup; | ||
| import android.widget.TextView; | ||
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| import org.zakariya.stickyheaders.SectioningAdapter; | ||
| import org.zakariya.stickyheadersapp.R; | ||
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| import java.util.ArrayList; | ||
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| /** | ||
| * Created by shamyl on 7/26/16. | ||
| */ | ||
| public class SelectionDemoAdapter extends SectioningAdapter { | ||
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| private static final String TAG = "SelectionDemoAdapter"; | ||
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| private class Section { | ||
| int index; | ||
| String header; | ||
| String footer; | ||
| ArrayList<String> items = new ArrayList<>(); | ||
| } | ||
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| public class ItemViewHolder extends SectioningAdapter.ItemViewHolder { | ||
| TextView textView; | ||
| TextView adapterPositionTextView; | ||
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| public ItemViewHolder(View itemView, boolean showAdapterPosition) { | ||
| super(itemView); | ||
| textView = (TextView) itemView.findViewById(R.id.textView); | ||
| adapterPositionTextView = (TextView) itemView.findViewById(R.id.adapterPositionTextView); | ||
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| if (showAdapterPosition) { | ||
| adapterPositionTextView.setVisibility(View.GONE); | ||
| } | ||
| } | ||
| } | ||
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| public class HeaderViewHolder extends SectioningAdapter.HeaderViewHolder { | ||
| TextView textView; | ||
| TextView adapterPositionTextView; | ||
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| public HeaderViewHolder(View itemView, boolean showAdapterPosition) { | ||
| super(itemView); | ||
| textView = (TextView) itemView.findViewById(R.id.textView); | ||
| adapterPositionTextView = (TextView) itemView.findViewById(R.id.adapterPositionTextView); | ||
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| if (showAdapterPosition) { | ||
| adapterPositionTextView.setVisibility(View.INVISIBLE); | ||
| } | ||
| } | ||
| } | ||
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| public class FooterViewHolder extends SectioningAdapter.FooterViewHolder { | ||
| TextView textView; | ||
| TextView adapterPositionTextView; | ||
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| public FooterViewHolder(View itemView, boolean showAdapterPosition) { | ||
| super(itemView); | ||
| textView = (TextView) itemView.findViewById(R.id.textView); | ||
| adapterPositionTextView = (TextView) itemView.findViewById(R.id.adapterPositionTextView); | ||
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| if (showAdapterPosition) { | ||
| adapterPositionTextView.setVisibility(View.GONE); | ||
| } | ||
| } | ||
| } | ||
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| ArrayList<Section> sections = new ArrayList<>(); | ||
| boolean showAdapterPositions; | ||
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| public SelectionDemoAdapter(int numSections, int numItemsPerSection, boolean showAdapterPositions) { | ||
| this.showAdapterPositions = showAdapterPositions; | ||
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| for (int i = 0; i < numSections; i++) { | ||
| appendSection(i, numItemsPerSection); | ||
| } | ||
| } | ||
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| void appendSection(int index, int itemCount) { | ||
| Section section = new Section(); | ||
| section.index = index; | ||
| section.header = Integer.toString(index); | ||
| section.footer = "End of section " + Integer.toString(index); | ||
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| for (int j = 0; j < itemCount; j++) { | ||
| section.items.add(index + "/" + j); | ||
| } | ||
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| sections.add(section); | ||
| } | ||
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| void duplicateSection(int sectionIndex) { | ||
| Section srcSection = sections.get(sectionIndex); | ||
| Section cloneSection = new Section(); | ||
| cloneSection.index = srcSection.index; | ||
| cloneSection.header = srcSection.header + " (clone)"; | ||
| cloneSection.footer = srcSection.footer + " (clone)"; | ||
| cloneSection.items = new ArrayList<>(srcSection.items); | ||
| sections.add(sectionIndex + 1, cloneSection); | ||
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| notifySectionInserted(sectionIndex + 1); | ||
| } | ||
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| void duplicateItem(int sectionIndex, int itemIndex) { | ||
| Section section = sections.get(sectionIndex); | ||
| if (section != null) { | ||
| String src = section.items.get(itemIndex); | ||
| section.items.add(itemIndex + 1, src + " (copy)"); | ||
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| notifySectionItemInserted(sectionIndex, itemIndex + 1); | ||
| } | ||
| } | ||
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| public void deleteSelection() { | ||
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| traverseSelection(new SelectionVisitor() { | ||
| @Override | ||
| public void onVisitSelectedSection(int sectionIndex) { | ||
| Log.d(TAG, "onVisitSelectedSection() called with: " + "sectionIndex = [" + sectionIndex + "]"); | ||
| sections.remove(sectionIndex); | ||
| notifySectionRemoved(sectionIndex); | ||
| } | ||
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| @Override | ||
| public void onVisitSelectedSectionItem(int sectionIndex, int itemIndex) { | ||
| Log.d(TAG, "onVisitSelectedSectionItem() called with: " + "sectionIndex = [" + sectionIndex + "], itemIndex = [" + itemIndex + "]"); | ||
| Section section = sections.get(sectionIndex); | ||
| if (section != null) { | ||
| section.items.remove(itemIndex); | ||
| notifySectionItemRemoved(sectionIndex, itemIndex); | ||
| } | ||
| } | ||
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| @Override | ||
| public void onVisitSelectedFooter(int sectionIndex) { | ||
| Log.d(TAG, "onVisitSelectedFooter() called with: " + "sectionIndex = [" + sectionIndex + "]"); | ||
| Section section = sections.get(sectionIndex); | ||
| if (section != null) { | ||
| section.footer = null; | ||
| notifySectionFooterRemoved(sectionIndex); | ||
| } | ||
| } | ||
| }); | ||
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| // clear selection without notification - because that would fight the deletion animations triggered above | ||
| clearSelection(false); | ||
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| } | ||
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| public void duplicateSelection() { | ||
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| traverseSelection(new SelectionVisitor() { | ||
| @Override | ||
| public void onVisitSelectedSection(int sectionIndex) { | ||
| Log.d(TAG, "onVisitSelectedSection() called with: " + "sectionIndex = [" + sectionIndex + "]"); | ||
| duplicateSection(sectionIndex); | ||
| } | ||
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| @Override | ||
| public void onVisitSelectedSectionItem(int sectionIndex, int itemIndex) { | ||
| Log.d(TAG, "onVisitSelectedSectionItem() called with: " + "sectionIndex = [" + sectionIndex + "], itemIndex = [" + itemIndex + "]"); | ||
| duplicateItem(sectionIndex, itemIndex); | ||
| } | ||
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| @Override | ||
| public void onVisitSelectedFooter(int sectionIndex) { | ||
| // no-op | ||
| } | ||
| }); | ||
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| clearSelection(); | ||
| } | ||
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| @Override | ||
| public int getNumberOfSections() { | ||
| return sections.size(); | ||
| } | ||
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| @Override | ||
| public int getNumberOfItemsInSection(int sectionIndex) { | ||
| return sections.get(sectionIndex).items.size(); | ||
| } | ||
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| @Override | ||
| public boolean doesSectionHaveHeader(int sectionIndex) { | ||
| return !TextUtils.isEmpty(sections.get(sectionIndex).header); | ||
| } | ||
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| @Override | ||
| public boolean doesSectionHaveFooter(int sectionIndex) { | ||
| return !TextUtils.isEmpty(sections.get(sectionIndex).footer); | ||
| } | ||
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| @Override | ||
| public ItemViewHolder onCreateItemViewHolder(ViewGroup parent, int itemType) { | ||
| LayoutInflater inflater = LayoutInflater.from(parent.getContext()); | ||
| View v = inflater.inflate(R.layout.list_item_selectable_item, parent, false); | ||
| return new ItemViewHolder(v, showAdapterPositions); | ||
| } | ||
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| @Override | ||
| public HeaderViewHolder onCreateHeaderViewHolder(ViewGroup parent, int headerType) { | ||
| LayoutInflater inflater = LayoutInflater.from(parent.getContext()); | ||
| View v = inflater.inflate(R.layout.list_item_selectable_header, parent, false); | ||
| return new HeaderViewHolder(v, showAdapterPositions); | ||
| } | ||
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| @Override | ||
| public FooterViewHolder onCreateFooterViewHolder(ViewGroup parent, int footerType) { | ||
| LayoutInflater inflater = LayoutInflater.from(parent.getContext()); | ||
| View v = inflater.inflate(R.layout.list_item_selectable_footer, parent, false); | ||
| return new FooterViewHolder(v, showAdapterPositions); | ||
| } | ||
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| @SuppressLint("SetTextI18n") | ||
| @Override | ||
| public void onBindItemViewHolder(SectioningAdapter.ItemViewHolder viewHolder, int sectionIndex, int itemIndex, int itemType) { | ||
| Section s = sections.get(sectionIndex); | ||
| ItemViewHolder ivh = (ItemViewHolder) viewHolder; | ||
| ivh.textView.setText(s.items.get(itemIndex)); | ||
| ivh.adapterPositionTextView.setText(Integer.toString(getAdapterPositionForSectionItem(sectionIndex, itemIndex))); | ||
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| ivh.itemView.setActivated(isSectionItemSelected(sectionIndex, itemIndex)); | ||
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| } | ||
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| @SuppressLint("SetTextI18n") | ||
| @Override | ||
| public void onBindHeaderViewHolder(SectioningAdapter.HeaderViewHolder viewHolder, int sectionIndex, int headerType) { | ||
| Section s = sections.get(sectionIndex); | ||
| HeaderViewHolder hvh = (HeaderViewHolder) viewHolder; | ||
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| hvh.textView.setText(s.header); | ||
| hvh.adapterPositionTextView.setText(Integer.toString(getAdapterPositionForSectionHeader(sectionIndex))); | ||
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| hvh.itemView.setActivated(isSectionSelected(sectionIndex)); | ||
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| } | ||
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| @SuppressLint("SetTextI18n") | ||
| @Override | ||
| public void onBindFooterViewHolder(SectioningAdapter.FooterViewHolder viewHolder, int sectionIndex, int footerType) { | ||
| Section s = sections.get(sectionIndex); | ||
| FooterViewHolder fvh = (FooterViewHolder) viewHolder; | ||
| fvh.textView.setText(s.footer); | ||
| fvh.adapterPositionTextView.setText(Integer.toString(getAdapterPositionForSectionFooter(sectionIndex))); | ||
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| fvh.itemView.setActivated(isSectionFooterSelected(sectionIndex)); | ||
| } | ||
| } |
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