Java SparseArrayCompat类代码示例

import android.support.v4.util.SparseArrayCompat; //导入依赖的package包/类
private void init(Context context) {
    mViewHolders = new SparseMatrix<>();
    mLayoutDirectionHelper = new LayoutDirectionHelper(mLayoutDirection);
    mHeaderColumnViewHolders = new SparseArrayCompat<>();
    mHeaderRowViewHolders = new SparseArrayCompat<>();
    mDragAndDropPoints = new DragAndDropPoints();
    mState = new AdaptiveTableState();
    mManager = new AdaptiveTableManagerRTL(mLayoutDirectionHelper);
    mLastSwitchHeaderPoint = new Point();
    mVisibleArea = new Rect();
    // init scroll and fling helpers
    mScrollerRunnable = new SmoothScrollRunnable(this);
    mScrollerDragAndDropRunnable = new DragAndDropScrollRunnable(this);
    mRecycler = new Recycler();
    mSettings = new AdaptiveTableLayoutSettings();
    mScrollHelper = new ScrollHelper(context);
    mScrollHelper.setListener(this);
    mShadowHelper = new ShadowHelper(mLayoutDirectionHelper);
}
 

import android.support.v4.util.SparseArrayCompat; //导入依赖的package包/类
@TargetApi(11)
public void setChoiceMode(int choiceMode) {
    this.mChoiceMode = choiceMode;
    if (VERSION.SDK_INT >= 11 && this.mChoiceActionMode != null) {
        if (VERSION.SDK_INT >= 11) {
            ((ActionMode) this.mChoiceActionMode).finish();
        }
        this.mChoiceActionMode = null;
    }
    if (this.mChoiceMode != 0) {
        if (this.mCheckStates == null) {
            this.mCheckStates = new SparseArrayCompat();
        }
        if (this.mCheckedIdStates == null && this.mAdapter != null && this.mAdapter.hasStableIds()) {
            this.mCheckedIdStates = new LongSparseArray();
        }
        if (VERSION.SDK_INT >= 11 && this.mChoiceMode == 3) {
            clearChoices();
            setLongClickable(true);
        }
    }
}
 

import android.support.v4.util.SparseArrayCompat; //导入依赖的package包/类
@Override
public void notifyDataSetChanged() {
    SparseArrayCompat<Fragment> newFragments =
            new SparseArrayCompat<>(fragments.size());
    for (int i = 0; i < fragments.size(); i++) {
        final int oldPos = fragments.keyAt(i);
        final Fragment f = fragments.valueAt(i);
        final int newPos = getItemPosition(f);
        if (newPos != POSITION_NONE) {
            final int pos = (newPos >= 0) ? newPos : oldPos;
            newFragments.put(pos, f);
        }
    }
    fragments = newFragments;
    super.notifyDataSetChanged();
}
 

import android.support.v4.util.SparseArrayCompat; //导入依赖的package包/类
private void attachChildViewBlock(@NonNull UIKitComponent component, SparseArrayCompat<String>
        childViewBlockClassNamesArray, int index, View childView) {
    int childViewChildAtId = childView.getId();
    int indexOfKey = childViewBlockClassNamesArray.indexOfKey(childViewChildAtId);
    if (indexOfKey < 0) {
        indexOfKey = childViewBlockClassNamesArray.indexOfKey(index);
    }
    if (indexOfKey < 0) {
        return;
    }

    String name = childViewBlockClassNamesArray.valueAt(indexOfKey);

    if (name == null) {
        return;
    }

    ViewBlock parentBlock = component.getViewBlock();
    ViewBlock viewBlock = createViewBlock(childView, childViewChildAtId, name);
    if (viewBlock != null) {
        addViewBlockToViewBlockManager(viewBlock, parentBlock, component.getViewBlockManager());
    }

    childViewBlockClassNamesArray.removeAt(indexOfKey);
}
 

import android.support.v4.util.SparseArrayCompat; //导入依赖的package包/类
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.offset_activity_test);

    ItemsAdapter adapter = new ItemsAdapter(this);
    adapter.setList(new ItemPagedList(this));
    manage(adapter);

    SparseArrayCompat<Integer> offsetItems = new SparseArrayCompat<>();
    offsetItems.put(1, Integer.MAX_VALUE - 1);
    offsetItems.put(10, Integer.MAX_VALUE - 2);

    OffsetTestAdapter offsetAdapter = new OffsetTestAdapter(this, adapter, offsetItems);
    manage(offsetAdapter);

    RecyclerView items = (RecyclerView) findViewById(R.id.items);
    items.setLayoutManager(new LinearLayoutManager(this));
    items.setAdapter(offsetAdapter);
}
 

import android.support.v4.util.SparseArrayCompat; //导入依赖的package包/类
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.offset_activity_test);

    ItemsAdapter adapter = new ItemsAdapter(this);
    adapter.setList(new ItemPagedList(this));
    manage(adapter);

    SparseArrayCompat<Integer> offsetItems = new SparseArrayCompat<>();
    offsetItems.put(0, Integer.MAX_VALUE - 1);
    offsetItems.put(1, Integer.MAX_VALUE - 2);
    offsetItems.put(2, Integer.MAX_VALUE - 3);

    OffsetTestAdapter offsetAdapter = new OffsetTestAdapter(this, adapter, offsetItems);
    manage(offsetAdapter);

    RecyclerView items = (RecyclerView) findViewById(R.id.items);
    items.setLayoutManager(new LinearLayoutManager(this));
    items.setAdapter(offsetAdapter);
}
 

import android.support.v4.util.SparseArrayCompat; //导入依赖的package包/类
public void init(Rect bounds, float startFrame, float endFrame, float frameRate, int majorVersion,
    int minorVersion, int patchVersion, List<Layer> layers, LongSparseArray<Layer> layerMap,
    Map<String, List<Layer>> precomps, Map<String, LottieImageAsset> images,
    SparseArrayCompat<FontCharacter> characters, Map<String, Font> fonts) {
  this.bounds = bounds;
  this.startFrame = startFrame;
  this.endFrame = endFrame;
  this.frameRate = frameRate;
  this.majorVersion = majorVersion;
  this.minorVersion = minorVersion;
  this.patchVersion = patchVersion;
  this.layers = layers;
  this.layerMap = layerMap;
  this.precomps = precomps;
  this.images = images;
  this.characters = characters;
  this.fonts = fonts;
}
 

import android.support.v4.util.SparseArrayCompat; //导入依赖的package包/类
/**
     * 设置第二个列表数据
     *
     * @param city
     */
    public void setCity(SparseArrayCompat<List<DataModel>> city) {
        mCitisDatasMap = city;
        List<DataModel> temp_city = city.get(mProvinceId);
        if (temp_city != null) {
            for (int i = 0; i < temp_city.size(); i++) {
                DataModel data = temp_city.get(i);
                if (data.Id == mCityId) {
                    mCityPosition = i;
                    break;
                }
            }
        }
        updateCities(mCityPosition);
//        mCity.setCurrentItem(mCityPosition);
    }
 

import android.support.v4.util.SparseArrayCompat; //导入依赖的package包/类
/**
     * 设置第三个列表数据
     *
     * @param area
     */
    public void setArea(SparseArrayCompat<List<DataModel>> area) {
        mAreaDatasMap = area;
        List<DataModel> temp_area = area.get(mCityId);
        if (temp_area != null) {
            for (int i = 0; i < temp_area.size(); i++) {
                DataModel data = temp_area.get(i);
                if (data.Id == mAreaId) {
                    mAreaPosition = i;
                    break;
                }
            }
        }
        updateAreas(mAreaPosition);
//        mArea.setCurrentItem(mAreaPosition);
    }
 

import android.support.v4.util.SparseArrayCompat; //导入依赖的package包/类
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
    int currentItem = mViewPager.getCurrentItem();
    if (positionOffsetPixels > 0) {
        SparseArrayCompat<ScrollTabHolder> scrollTabHolders = mAdapter.getScrollTabHolders();

        ScrollTabHolder fragmentContent;
        if (position < currentItem) {
            // Revealed the previous page
            fragmentContent = scrollTabHolders.valueAt(position);
        } else {
            // Revealed the next page
            fragmentContent = scrollTabHolders.valueAt(position + 1);
        }

        fragmentContent.adjustScroll((int) (mHeader.getHeight() + mHeader.getTranslationY()),
                mHeader.getHeight());
    }
}
 

import android.support.v4.util.SparseArrayCompat; //导入依赖的package包/类
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
    int currentItem = mViewPager.getCurrentItem();
    if (positionOffsetPixels > 0) {
        SparseArrayCompat<ScrollHolder> scrollTabHolders = mAdapter.getScrollTabHolders();

        ScrollHolder fragmentContent;
        if (position < currentItem) {
            fragmentContent = scrollTabHolders.valueAt(position);
        } else {
            fragmentContent = scrollTabHolders.valueAt(position + 1);
        }

        fragmentContent.adjustScroll((int) (mStickheader.getHeight() + mStickheader.getTranslationY()), mStickheader.getHeight());
    }
}
 

import android.support.v4.util.SparseArrayCompat; //导入依赖的package包/类
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

	if (positionOffsetPixels > 0) {
		int currentItem = mViewPager.getCurrentItem();

		SparseArrayCompat<ScrollTabHolder> scrollTabHolders = mPagerAdapter.getScrollTabHolders();
		ScrollTabHolder currentHolder;

		if (position < currentItem) {
			currentHolder = scrollTabHolders.valueAt(position);
		} else {
			currentHolder = scrollTabHolders.valueAt(position + 1);
		}

		if (NEEDS_PROXY) {
			// TODO is not good
			currentHolder.adjustScroll(mHeader.getHeight() - mLastY);
			mHeader.postInvalidate();
		} else {
			currentHolder.adjustScroll((int) (mHeader.getHeight() + mHeader.getTranslationY()));
		}
	}
}
 

import android.support.v4.util.SparseArrayCompat; //导入依赖的package包/类
private void deleteSelectedItems() {
	SparseArrayCompat<Boolean> checkedItems = listView.getCheckedItemPositions();
	ArrayList<Integer> sorted = new ArrayList<Integer>(checkedItems.size());

	Log.i(LOG_TAG, "deleting: " + checkedItems.size());

	for (int i = 0; i < checkedItems.size(); i++) {
		if (checkedItems.valueAt(i)) {
			sorted.add(checkedItems.keyAt(i));
		}
	}

	Collections.sort(sorted);

	for (int i = sorted.size() - 1; i >= 0; i--) {
		int position = sorted.get(i);
		Log.d(LOG_TAG, "Deleting item at: " + position);
		mAdapter.mItems.remove(position);
	}
	mAdapter.notifyDataSetChanged();
}
 

import android.support.v4.util.SparseArrayCompat; //导入依赖的package包/类
protected <T extends View> T getView(View view, int viewId)
{
    SparseArrayCompat<View> viewHolder = (SparseArrayCompat<View>) view.getTag();
    if (viewHolder == null)
    {
        viewHolder = new SparseArrayCompat<View>();
        view.setTag(viewHolder);
    }
    View res = viewHolder.get(viewId);
    if (res == null)
    {
        res = view.findViewById(viewId);
        viewHolder.put(viewId, res);
    }
    return (T) res;
}
 

import android.support.v4.util.SparseArrayCompat; //导入依赖的package包/类
/**
 * Method switch view holders in map (map with headers view holders).
 *
 * @param map       header view holder's map
 * @param fromIndex index from view holder
 * @param toIndex   index to view holder
 * @param type      type of items (column header or row header)
 */
@SuppressWarnings("unused")
private void switchHeaders(SparseArrayCompat<ViewHolder> map, int fromIndex, int toIndex, int type) {
    ViewHolder fromVh = map.get(fromIndex);

    if (fromVh != null) {
        map.remove(fromIndex);
        if (type == ViewHolderType.COLUMN_HEADER) {
            fromVh.setColumnIndex(toIndex);
        } else if (type == ViewHolderType.ROW_HEADER) {
            fromVh.setRowIndex(toIndex);
        }
    }

    ViewHolder toVh = map.get(toIndex);
    if (toVh != null) {
        map.remove(toIndex);
        if (type == ViewHolderType.COLUMN_HEADER) {
            toVh.setColumnIndex(fromIndex);
        } else if (type == ViewHolderType.ROW_HEADER) {
            toVh.setRowIndex(fromIndex);
        }
    }

    if (fromVh != null) {
        map.put(toIndex, fromVh);
    }

    if (toVh != null) {
        map.put(fromIndex, toVh);
    }
}