| /* |
| * Copyright 2017 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 androidx.slice.widget; |
| |
| import android.annotation.TargetApi; |
| import android.content.Context; |
| import android.support.annotation.RestrictTo; |
| import android.support.v7.widget.LinearLayoutManager; |
| import android.support.v7.widget.RecyclerView; |
| import android.util.AttributeSet; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import androidx.slice.Slice; |
| import androidx.slice.SliceItem; |
| |
| /** |
| * @hide |
| */ |
| @RestrictTo(RestrictTo.Scope.LIBRARY) |
| @TargetApi(24) |
| public class LargeTemplateView extends SliceChildView { |
| |
| private final LargeSliceAdapter mAdapter; |
| private final RecyclerView mRecyclerView; |
| private Slice mSlice; |
| private boolean mIsScrollable; |
| private ListContent mListContent; |
| private List<SliceItem> mDisplayedItems = new ArrayList<>(); |
| private int mDisplayedItemsHeight = 0; |
| |
| public LargeTemplateView(Context context) { |
| super(context); |
| mRecyclerView = new RecyclerView(getContext()); |
| mRecyclerView.setLayoutManager(new LinearLayoutManager(getContext())); |
| mAdapter = new LargeSliceAdapter(context); |
| mRecyclerView.setAdapter(mAdapter); |
| addView(mRecyclerView); |
| } |
| |
| @Override |
| protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| int height = MeasureSpec.getSize(heightMeasureSpec); |
| if (mDisplayedItems.size() > 0 && mDisplayedItemsHeight > height) { |
| // Need to resize |
| updateDisplayedItems(height); |
| } |
| super.onMeasure(widthMeasureSpec, heightMeasureSpec); |
| } |
| |
| @Override |
| public int getActualHeight() { |
| return mDisplayedItemsHeight; |
| } |
| |
| @Override |
| public void setTint(int tint) { |
| super.setTint(tint); |
| populate(); |
| } |
| |
| @Override |
| public @SliceView.SliceMode int getMode() { |
| return SliceView.MODE_LARGE; |
| } |
| |
| @Override |
| public void setSliceActionListener(SliceView.OnSliceActionListener observer) { |
| mObserver = observer; |
| if (mAdapter != null) { |
| mAdapter.setSliceObserver(mObserver); |
| } |
| } |
| |
| @Override |
| public void setSliceActions(List<SliceItem> actions) { |
| mAdapter.setSliceActions(actions); |
| } |
| |
| @Override |
| public void setSlice(Slice slice) { |
| mSlice = slice; |
| populate(); |
| } |
| |
| @Override |
| public void setStyle(AttributeSet attrs) { |
| super.setStyle(attrs); |
| mAdapter.setStyle(attrs); |
| } |
| |
| private void populate() { |
| if (mSlice == null) { |
| resetView(); |
| return; |
| } |
| mListContent = new ListContent(getContext(), mSlice); |
| updateDisplayedItems(getMeasuredHeight()); |
| } |
| |
| /** |
| * Whether or not the content in this template should be scrollable. |
| */ |
| public void setScrollable(boolean isScrollable) { |
| mIsScrollable = isScrollable; |
| updateDisplayedItems(getMeasuredHeight()); |
| } |
| |
| private void updateDisplayedItems(int height) { |
| if (mListContent == null) { |
| return; |
| } |
| if (!mIsScrollable) { |
| // If we're not scrollable we must cap the number of items we're displaying such |
| // that they fit in the available space |
| if (height == 0) { |
| // Not measured, use default |
| mDisplayedItems = mListContent.getItemsForNonScrollingList(-1); |
| } else { |
| mDisplayedItems = mListContent.getItemsForNonScrollingList(height); |
| } |
| } else { |
| mDisplayedItems = mListContent.getRowItems(); |
| } |
| mDisplayedItemsHeight = ListContent.getListHeight(getContext(), mDisplayedItems); |
| mAdapter.setSliceItems(mDisplayedItems, mTintColor); |
| } |
| |
| @Override |
| public void resetView() { |
| mSlice = null; |
| mDisplayedItemsHeight = 0; |
| mDisplayedItems.clear(); |
| mAdapter.setSliceItems(null, -1); |
| mListContent = null; |
| } |
| } |