-
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package third_parties.liaohuqiu;
-
-
- import android.annotation.TargetApi;
- import android.content.Context;
- import android.database.DataSetObservable;
- import android.database.DataSetObserver;
- import android.os.Build;
- import android.util.AttributeSet;
- import android.util.Log;
- import android.view.View;
- import android.view.ViewGroup;
- import android.widget.*;
-
- import java.lang.reflect.Field;
- import java.util.ArrayList;
-
-/**
- * A {@link GridView} that supports adding header rows in a
- * very similar way to {@link android.widget.ListView}.
- * See {@link GridViewWithHeaderAndFooter#addHeaderView(View, Object, boolean)}
- * See {@link GridViewWithHeaderAndFooter#addFooterView(View, Object, boolean)}
- */
-public class GridViewWithHeaderAndFooter extends GridView {
-
- public static boolean DEBUG = false;
-
- /**
- * A class that represents a fixed view in a list, for example a header at the top
- * or a footer at the bottom.
- */
- private static class FixedViewInfo {
- /**
- * The view to add to the grid
- */
- public View view;
- public ViewGroup viewContainer;
- /**
- * The data backing the view. This is returned from {@link ListAdapter#getItem(int)}.
- */
- public Object data;
- /**
- * <code>true</code> if the fixed view should be selectable in the grid
- */
- public boolean isSelectable;
- }
-
- private int mNumColumns = AUTO_FIT;
- private View mViewForMeasureRowHeight = null;
- private int mRowHeight = -1;
- private static final String LOG_TAG = "grid-view-with-header-and-footer";
-
- private ArrayList<FixedViewInfo> mHeaderViewInfos = new ArrayList<FixedViewInfo>();
- private ArrayList<FixedViewInfo> mFooterViewInfos = new ArrayList<FixedViewInfo>();
-
- private void initHeaderGridView() {
- }
-
- public GridViewWithHeaderAndFooter(Context context) {
- super(context);
- initHeaderGridView();
- }
-
- public GridViewWithHeaderAndFooter(Context context, AttributeSet attrs) {
- super(context, attrs);
- initHeaderGridView();
- }
-
- public GridViewWithHeaderAndFooter(Context context, AttributeSet attrs, int defStyle) {
- super(context, attrs, defStyle);
- initHeaderGridView();
- }
-
- @Override
- protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
- super.onMeasure(widthMeasureSpec, heightMeasureSpec);
- ListAdapter adapter = getAdapter();
- if (adapter != null && adapter instanceof HeaderViewGridAdapter) {
- ((HeaderViewGridAdapter) adapter).setNumColumns(getNumColumnsCompatible());
- ((HeaderViewGridAdapter) adapter).setRowHeight(getRowHeight());
- }
- }
-
- @Override
- public void setClipChildren(boolean clipChildren) {
- // Ignore, since the header rows depend on not being clipped
- }
-
- /**
- * Do not call this method unless you know how it works.
- *
- * @param clipChildren
- */
- public void setClipChildrenSupper(boolean clipChildren) {
- super.setClipChildren(false);
- }
-
- /**
- * Add a fixed view to appear at the top of the grid. If addHeaderView is
- * called more than once, the views will appear in the order they were
- * added. Views added using this call can take focus if they want.
- * <p/>
- * NOTE: Call this before calling setAdapter. This is so HeaderGridView can wrap
- * the supplied cursor with one that will also account for header views.
- *
- * @param v The view to add.
- */
- public void addHeaderView(View v) {
- addHeaderView(v, null, true);
- }
-
- /**
- * Add a fixed view to appear at the top of the grid. If addHeaderView is
- * called more than once, the views will appear in the order they were
- * added. Views added using this call can take focus if they want.
- * <p/>
- * NOTE: Call this before calling setAdapter. This is so HeaderGridView can wrap
- * the supplied cursor with one that will also account for header views.
- *
- * @param v The view to add.
- * @param data Data to associate with this view
- * @param isSelectable whether the item is selectable
- */
- public void addHeaderView(View v, Object data, boolean isSelectable) {
- ListAdapter adapter = getAdapter();
- if (adapter != null && !(adapter instanceof HeaderViewGridAdapter)) {
- throw new IllegalStateException(
- "Cannot add header view to grid -- setAdapter has already been called.");
- }
-
- ViewGroup.LayoutParams lyp = v.getLayoutParams();
-
- FixedViewInfo info = new FixedViewInfo();
- FrameLayout fl = new FullWidthFixedViewLayout(getContext());
-
- if (lyp != null) {
- v.setLayoutParams(new FrameLayout.LayoutParams(lyp.width, lyp.height));
- fl.setLayoutParams(new AbsListView.LayoutParams(lyp.width, lyp.height));
- }
- fl.addView(v);
- info.view = v;
- info.viewContainer = fl;
- info.data = data;
- info.isSelectable = isSelectable;
- mHeaderViewInfos.add(info);
- // in the case of re-adding a header view, or adding one later on,
- // we need to notify the observer
- if (adapter != null) {
- ((HeaderViewGridAdapter) adapter).notifyDataSetChanged();
- }
- }
-
- public void addFooterView(View v) {
- addFooterView(v, null, true);
- }
-
- public void addFooterView(View v, Object data, boolean isSelectable) {
- ListAdapter mAdapter = getAdapter();
- if (mAdapter != null && !(mAdapter instanceof HeaderViewGridAdapter)) {
- throw new IllegalStateException(
- "Cannot add header view to grid -- setAdapter has already been called.");
- }
-
- ViewGroup.LayoutParams lyp = v.getLayoutParams();
-
- FixedViewInfo info = new FixedViewInfo();
- FrameLayout fl = new FullWidthFixedViewLayout(getContext());
-
- if (lyp != null) {
- v.setLayoutParams(new FrameLayout.LayoutParams(lyp.width, lyp.height));
- fl.setLayoutParams(new AbsListView.LayoutParams(lyp.width, lyp.height));
- }
- fl.addView(v);
- info.view = v;
- info.viewContainer = fl;
- info.data = data;
- info.isSelectable = isSelectable;
- mFooterViewInfos.add(info);
-
- if (mAdapter != null) {
- ((HeaderViewGridAdapter) mAdapter).notifyDataSetChanged();
- }
- }
-
- public int getHeaderViewCount() {
- return mHeaderViewInfos.size();
- }
-
- public int getFooterViewCount() {
- return mFooterViewInfos.size();
- }
-
- /**
- * Removes a previously-added header view.
- *
- * @param v The view to remove
- * @return true if the view was removed, false if the view was not a header
- * view
- */
- public boolean removeHeaderView(View v) {
- if (mHeaderViewInfos.size() > 0) {
- boolean result = false;
- ListAdapter adapter = getAdapter();
- if (adapter != null && ((HeaderViewGridAdapter) adapter).removeHeader(v)) {
- result = true;
- }
- removeFixedViewInfo(v, mHeaderViewInfos);
- return result;
- }
- return false;
- }
-
- /**
- * Removes a previously-added footer view.
- *
- * @param v The view to remove
- * @return true if the view was removed, false if the view was not a header
- * view
- */
- public boolean removeFooterView(View v) {
- if (mFooterViewInfos.size() > 0) {
- boolean result = false;
- ListAdapter adapter = getAdapter();
- if (adapter != null && ((HeaderViewGridAdapter) adapter).removeFooter(v)) {
- result = true;
- }
- removeFixedViewInfo(v, mFooterViewInfos);
- return result;
- }
- return false;
- }
-
- private void removeFixedViewInfo(View v, ArrayList<FixedViewInfo> where) {
- int len = where.size();
- for (int i = 0; i < len; ++i) {
- FixedViewInfo info = where.get(i);
- if (info.view == v) {
- where.remove(i);
- break;
- }
- }
- }
-
- @TargetApi(11)
- private int getNumColumnsCompatible() {
- if (Build.VERSION.SDK_INT >= 11) {
- return super.getNumColumns();
- } else {
- try {
- Field numColumns = getClass().getSuperclass().getDeclaredField("mNumColumns");
- numColumns.setAccessible(true);
- return numColumns.getInt(this);
- } catch (Exception e) {
- if (mNumColumns != -1) {
- return mNumColumns;
- }
- throw new RuntimeException("Can not determine the mNumColumns for this API platform, please call setNumColumns to set it.");
- }
- }
- }
-
- @TargetApi(16)
- private int getColumnWidthCompatible() {
- if (Build.VERSION.SDK_INT >= 16) {
- return super.getColumnWidth();
- } else {
- try {
- Field numColumns = getClass().getSuperclass().getDeclaredField("mColumnWidth");
- numColumns.setAccessible(true);
- return numColumns.getInt(this);
- } catch (NoSuchFieldException e) {
- throw new RuntimeException(e);
- } catch (IllegalAccessException e) {
- throw new RuntimeException(e);
- }
- }
- }
-
- @Override
- protected void onDetachedFromWindow() {
- super.onDetachedFromWindow();
- mViewForMeasureRowHeight = null;
- }
-
- public void invalidateRowHeight() {
- mRowHeight = -1;
- }
-
- public int getRowHeight() {
- if (mRowHeight > 0) {
- return mRowHeight;
- }
- ListAdapter adapter = getAdapter();
- int numColumns = getNumColumnsCompatible();
-
- // adapter has not been set or has no views in it;
- if (adapter == null || adapter.getCount() <= numColumns * (mHeaderViewInfos.size() + mFooterViewInfos.size())) {
- return -1;
- }
- int mColumnWidth = getColumnWidthCompatible();
- View view = getAdapter().getView(numColumns * mHeaderViewInfos.size(), mViewForMeasureRowHeight, this);
- AbsListView.LayoutParams p = (AbsListView.LayoutParams) view.getLayoutParams();
- if (p == null) {
- p = new AbsListView.LayoutParams(-1, -2, 0);
- view.setLayoutParams(p);
- }
- int childHeightSpec = getChildMeasureSpec(
- MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), 0, p.height);
- int childWidthSpec = getChildMeasureSpec(
- MeasureSpec.makeMeasureSpec(mColumnWidth, MeasureSpec.EXACTLY), 0, p.width);
- view.measure(childWidthSpec, childHeightSpec);
- mViewForMeasureRowHeight = view;
- mRowHeight = view.getMeasuredHeight();
- return mRowHeight;
- }
-
- @TargetApi(11)
- public void tryToScrollToBottomSmoothly() {
- int lastPos = getAdapter().getCount() - 1;
- if (Build.VERSION.SDK_INT >= 11) {
- smoothScrollToPositionFromTop(lastPos, 0);
- } else {
- setSelection(lastPos);
- }
- }
-
- @TargetApi(11)
- public void tryToScrollToBottomSmoothly(int duration) {
- int lastPos = getAdapter().getCount() - 1;
- if (Build.VERSION.SDK_INT >= 11) {
- smoothScrollToPositionFromTop(lastPos, 0, duration);
- } else {
- setSelection(lastPos);
- }
- }
-
- @Override
- public void setAdapter(ListAdapter adapter) {
- if (mHeaderViewInfos.size() > 0 || mFooterViewInfos.size() > 0) {
- HeaderViewGridAdapter headerViewGridAdapter = new HeaderViewGridAdapter(mHeaderViewInfos, mFooterViewInfos, adapter);
- int numColumns = getNumColumnsCompatible();
- if (numColumns > 1) {
- headerViewGridAdapter.setNumColumns(numColumns);
- }
- headerViewGridAdapter.setRowHeight(getRowHeight());
- super.setAdapter(headerViewGridAdapter);
- } else {
- super.setAdapter(adapter);
- }
- }
-
- /**
- * full width
- */
- private class FullWidthFixedViewLayout extends FrameLayout {
-
- public FullWidthFixedViewLayout(Context context) {
- super(context);
- }
-
- @Override
- protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
- int realLeft = GridViewWithHeaderAndFooter.this.getPaddingLeft() + getPaddingLeft();
- // Try to make where it should be, from left, full width
- if (realLeft != left) {
- offsetLeftAndRight(realLeft - left);
- }
- super.onLayout(changed, left, top, right, bottom);
- }
-
- @Override
- protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
- int targetWidth = GridViewWithHeaderAndFooter.this.getMeasuredWidth()
- - GridViewWithHeaderAndFooter.this.getPaddingLeft()
- - GridViewWithHeaderAndFooter.this.getPaddingRight();
- widthMeasureSpec = MeasureSpec.makeMeasureSpec(targetWidth,
- MeasureSpec.getMode(widthMeasureSpec));
- super.onMeasure(widthMeasureSpec, heightMeasureSpec);
- }
- }
-
- @Override
- public void setNumColumns(int numColumns) {
- super.setNumColumns(numColumns);
- mNumColumns = numColumns;
- ListAdapter adapter = getAdapter();
- if (adapter != null && adapter instanceof HeaderViewGridAdapter) {
- ((HeaderViewGridAdapter) adapter).setNumColumns(numColumns);
- }
- }
-
- /**
- * ListAdapter used when a HeaderGridView has header views. This ListAdapter
- * wraps another one and also keeps track of the header views and their
- * associated data objects.
- * <p>This is intended as a base class; you will probably not need to
- * use this class directly in your own code.
- */
- private static class HeaderViewGridAdapter implements WrapperListAdapter, Filterable {
- // This is used to notify the container of updates relating to number of columns
- // or headers changing, which changes the number of placeholders needed
- private final DataSetObservable mDataSetObservable = new DataSetObservable();
- private final ListAdapter mAdapter;
- static final ArrayList<FixedViewInfo> EMPTY_INFO_LIST =
- new ArrayList<FixedViewInfo>();
-
- // This ArrayList is assumed to NOT be null.
- ArrayList<FixedViewInfo> mHeaderViewInfos;
- ArrayList<FixedViewInfo> mFooterViewInfos;
- private int mNumColumns = 1;
- private int mRowHeight = -1;
- boolean mAreAllFixedViewsSelectable;
- private final boolean mIsFilterable;
- private boolean mCachePlaceHoldView = true;
- // From Recycle Bin or calling getView, this a question...
- private boolean mCacheFirstHeaderView = false;
-
- public HeaderViewGridAdapter(ArrayList<FixedViewInfo> headerViewInfos, ArrayList<FixedViewInfo> footViewInfos, ListAdapter adapter) {
- mAdapter = adapter;
- mIsFilterable = adapter instanceof Filterable;
- if (headerViewInfos == null) {
- mHeaderViewInfos = EMPTY_INFO_LIST;
- } else {
- mHeaderViewInfos = headerViewInfos;
- }
-
- if (footViewInfos == null) {
- mFooterViewInfos = EMPTY_INFO_LIST;
- } else {
- mFooterViewInfos = footViewInfos;
- }
- mAreAllFixedViewsSelectable = areAllListInfosSelectable(mHeaderViewInfos)
- && areAllListInfosSelectable(mFooterViewInfos);
- }
-
- public void setNumColumns(int numColumns) {
- if (numColumns < 1) {
- return;
- }
- if (mNumColumns != numColumns) {
- mNumColumns = numColumns;
- notifyDataSetChanged();
- }
- }
-
- public void setRowHeight(int height) {
- mRowHeight = height;
- }
-
- public int getHeadersCount() {
- return mHeaderViewInfos.size();
- }
-
- public int getFootersCount() {
- return mFooterViewInfos.size();
- }
-
- @Override
- public boolean isEmpty() {
- return (mAdapter == null || mAdapter.isEmpty()) && getHeadersCount() == 0 && getFootersCount() == 0;
- }
-
- private boolean areAllListInfosSelectable(ArrayList<FixedViewInfo> infos) {
- if (infos != null) {
- for (FixedViewInfo info : infos) {
- if (!info.isSelectable) {
- return false;
- }
- }
- }
- return true;
- }
-
- public boolean removeHeader(View v) {
- for (int i = 0; i < mHeaderViewInfos.size(); i++) {
- FixedViewInfo info = mHeaderViewInfos.get(i);
- if (info.view == v) {
- mHeaderViewInfos.remove(i);
- mAreAllFixedViewsSelectable =
- areAllListInfosSelectable(mHeaderViewInfos) && areAllListInfosSelectable(mFooterViewInfos);
- mDataSetObservable.notifyChanged();
- return true;
- }
- }
- return false;
- }
-
- public boolean removeFooter(View v) {
- for (int i = 0; i < mFooterViewInfos.size(); i++) {
- FixedViewInfo info = mFooterViewInfos.get(i);
- if (info.view == v) {
- mFooterViewInfos.remove(i);
- mAreAllFixedViewsSelectable =
- areAllListInfosSelectable(mHeaderViewInfos) && areAllListInfosSelectable(mFooterViewInfos);
- mDataSetObservable.notifyChanged();
- return true;
- }
- }
- return false;
- }
-
- @Override
- public int getCount() {
- if (mAdapter != null) {
- return (getFootersCount() + getHeadersCount()) * mNumColumns + getAdapterAndPlaceHolderCount();
- } else {
- return (getFootersCount() + getHeadersCount()) * mNumColumns;
- }
- }
-
- @Override
- public boolean areAllItemsEnabled() {
- if (mAdapter != null) {
- return mAreAllFixedViewsSelectable && mAdapter.areAllItemsEnabled();
- } else {
- return true;
- }
- }
-
- private int getAdapterAndPlaceHolderCount() {
- final int adapterCount = (int) (Math.ceil(1f * mAdapter.getCount() / mNumColumns) * mNumColumns);
- return adapterCount;
- }
-
- @Override
- public boolean isEnabled(int position) {
- // Header (negative positions will throw an IndexOutOfBoundsException)
- int numHeadersAndPlaceholders = getHeadersCount() * mNumColumns;
- if (position < numHeadersAndPlaceholders) {
- return position % mNumColumns == 0
- && mHeaderViewInfos.get(position / mNumColumns).isSelectable;
- }
-
- // Adapter
- final int adjPosition = position - numHeadersAndPlaceholders;
- int adapterCount = 0;
- if (mAdapter != null) {
- adapterCount = getAdapterAndPlaceHolderCount();
- if (adjPosition < adapterCount) {
- return adjPosition < mAdapter.getCount() && mAdapter.isEnabled(adjPosition);
- }
- }
-
- // Footer (off-limits positions will throw an IndexOutOfBoundsException)
- final int footerPosition = adjPosition - adapterCount;
- return footerPosition % mNumColumns == 0
- && mFooterViewInfos.get(footerPosition / mNumColumns).isSelectable;
- }
-
- @Override
- public Object getItem(int position) {
- // Header (negative positions will throw an ArrayIndexOutOfBoundsException)
- int numHeadersAndPlaceholders = getHeadersCount() * mNumColumns;
- if (position < numHeadersAndPlaceholders) {
- if (position % mNumColumns == 0) {
- return mHeaderViewInfos.get(position / mNumColumns).data;
- }
- return null;
- }
-
- // Adapter
- final int adjPosition = position - numHeadersAndPlaceholders;
- int adapterCount = 0;
- if (mAdapter != null) {
- adapterCount = getAdapterAndPlaceHolderCount();
- if (adjPosition < adapterCount) {
- if (adjPosition < mAdapter.getCount()) {
- return mAdapter.getItem(adjPosition);
- } else {
- return null;
- }
- }
- }
-
- // Footer (off-limits positions will throw an IndexOutOfBoundsException)
- final int footerPosition = adjPosition - adapterCount;
- if (footerPosition % mNumColumns == 0) {
- return mFooterViewInfos.get(footerPosition).data;
- } else {
- return null;
- }
- }
-
- @Override
- public long getItemId(int position) {
- int numHeadersAndPlaceholders = getHeadersCount() * mNumColumns;
- if (mAdapter != null && position >= numHeadersAndPlaceholders) {
- int adjPosition = position - numHeadersAndPlaceholders;
- int adapterCount = mAdapter.getCount();
- if (adjPosition < adapterCount) {
- return mAdapter.getItemId(adjPosition);
- }
- }
- return -1;
- }
-
- @Override
- public boolean hasStableIds() {
- if (mAdapter != null) {
- return mAdapter.hasStableIds();
- }
- return false;
- }
-
- @Override
- public View getView(int position, View convertView, ViewGroup parent) {
- if (DEBUG) {
- Log.d(LOG_TAG, String.format("getView: %s, reused: %s", position, convertView == null));
- }
- // Header (negative positions will throw an ArrayIndexOutOfBoundsException)
- int numHeadersAndPlaceholders = getHeadersCount() * mNumColumns;
- if (position < numHeadersAndPlaceholders) {
- View headerViewContainer = mHeaderViewInfos
- .get(position / mNumColumns).viewContainer;
- if (position % mNumColumns == 0) {
- return headerViewContainer;
- } else {
- if (convertView == null) {
- convertView = new View(parent.getContext());
- }
- // We need to do this because GridView uses the height of the last item
- // in a row to determine the height for the entire row.
- convertView.setVisibility(View.INVISIBLE);
- convertView.setMinimumHeight(headerViewContainer.getHeight());
- return convertView;
- }
- }
- // Adapter
- final int adjPosition = position - numHeadersAndPlaceholders;
- int adapterCount = 0;
- if (mAdapter != null) {
- adapterCount = getAdapterAndPlaceHolderCount();
- if (adjPosition < adapterCount) {
- if (adjPosition < mAdapter.getCount()) {
- View view = mAdapter.getView(adjPosition, convertView, parent);
- return view;
- } else {
- if (convertView == null) {
- convertView = new View(parent.getContext());
- }
- convertView.setVisibility(View.INVISIBLE);
- convertView.setMinimumHeight(mRowHeight);
- return convertView;
- }
- }
- }
- // Footer
- final int footerPosition = adjPosition - adapterCount;
- if (footerPosition < getCount()) {
- View footViewContainer = mFooterViewInfos
- .get(footerPosition / mNumColumns).viewContainer;
- if (position % mNumColumns == 0) {
- return footViewContainer;
- } else {
- if (convertView == null) {
- convertView = new View(parent.getContext());
- }
- // We need to do this because GridView uses the height of the last item
- // in a row to determine the height for the entire row.
- convertView.setVisibility(View.INVISIBLE);
- convertView.setMinimumHeight(footViewContainer.getHeight());
- return convertView;
- }
- }
- throw new ArrayIndexOutOfBoundsException(position);
- }
-
- @Override
- public int getItemViewType(int position) {
-
- final int numHeadersAndPlaceholders = getHeadersCount() * mNumColumns;
- final int adapterViewTypeStart = mAdapter == null ? 0 : mAdapter.getViewTypeCount() - 1;
- int type = AdapterView.ITEM_VIEW_TYPE_HEADER_OR_FOOTER;
- if (mCachePlaceHoldView) {
- // Header
- if (position < numHeadersAndPlaceholders) {
- if (position == 0) {
- if (mCacheFirstHeaderView) {
- type = adapterViewTypeStart + mHeaderViewInfos.size() + mFooterViewInfos.size() + 1 + 1;
- }
- }
- if (position % mNumColumns != 0) {
- type = adapterViewTypeStart + (position / mNumColumns + 1);
- }
- }
- }
-
- // Adapter
- final int adjPosition = position - numHeadersAndPlaceholders;
- int adapterCount = 0;
- if (mAdapter != null) {
- adapterCount = getAdapterAndPlaceHolderCount();
- if (adjPosition >= 0 && adjPosition < adapterCount) {
- if (adjPosition < mAdapter.getCount()) {
- type = mAdapter.getItemViewType(adjPosition);
- } else {
- if (mCachePlaceHoldView) {
- type = adapterViewTypeStart + mHeaderViewInfos.size() + 1;
- }
- }
- }
- }
-
- if (mCachePlaceHoldView) {
- // Footer
- final int footerPosition = adjPosition - adapterCount;
- if (footerPosition >= 0 && footerPosition < getCount() && (footerPosition % mNumColumns) != 0) {
- type = adapterViewTypeStart + mHeaderViewInfos.size() + 1 + (footerPosition / mNumColumns + 1);
- }
- }
- if (DEBUG) {
- Log.d(LOG_TAG, String.format("getItemViewType: pos: %s, result: %s", position, type, mCachePlaceHoldView, mCacheFirstHeaderView));
- }
- return type;
- }
-
- /**
- * content view, content view holder, header[0], header and footer placeholder(s)
- *
- * @return
- */
- @Override
- public int getViewTypeCount() {
- int count = mAdapter == null ? 1 : mAdapter.getViewTypeCount();
- if (mCachePlaceHoldView) {
- int offset = mHeaderViewInfos.size() + 1 + mFooterViewInfos.size();
- if (mCacheFirstHeaderView) {
- offset += 1;
- }
- count += offset;
- }
- if (DEBUG) {
- Log.d(LOG_TAG, String.format("getViewTypeCount: %s", count));
- }
- return count;
- }
-
- @Override
- public void registerDataSetObserver(DataSetObserver observer) {
- mDataSetObservable.registerObserver(observer);
- if (mAdapter != null) {
- mAdapter.registerDataSetObserver(observer);
- }
- }
-
- @Override
- public void unregisterDataSetObserver(DataSetObserver observer) {
- mDataSetObservable.unregisterObserver(observer);
- if (mAdapter != null) {
- mAdapter.unregisterDataSetObserver(observer);
- }
- }
-
- @Override
- public Filter getFilter() {
- if (mIsFilterable) {
- return ((Filterable) mAdapter).getFilter();
- }
- return null;
- }
-
- @Override
- public ListAdapter getWrappedAdapter() {
- return mAdapter;
- }
-
- public void notifyDataSetChanged() {
- mDataSetObservable.notifyChanged();
- }
- }
-}
projects / pub / Android / ownCloud.git / blobdiff