6912342a48
There are many ways to fix this problem but this is the most direct way. Removing a view from the cache when any animation is started will ensure it won't be used again, and will be garbage collected when it's possible. Since views are created on demand anyway, a new one will just get created when needed, and that's it. Bug: 9400128 Change-Id: I4945d2859d642e79694d51ae90cf4f5bde9a5f1d
87 lines
3 KiB
Java
87 lines
3 KiB
Java
/**
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy
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* of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package com.android.inputmethod.dictionarypack;
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import android.view.View;
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import com.android.inputmethod.latin.utils.CollectionUtils;
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import java.util.ArrayList;
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import java.util.HashMap;
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/**
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* Helper class to maintain the interface state of word list preferences.
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*
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* This is necessary because the views are created on-demand by calling code. There are many
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* situations where views are renewed with little relation with user interaction. For example,
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* when scrolling, the view is reused so it doesn't keep its state, which means we need to keep
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* it separately. Also whenever the underlying dictionary list undergoes a change (for example,
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* update the metadata, or finish downloading) the whole list has to be thrown out and recreated
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* in case some dictionaries appeared, disappeared, changed states etc.
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*/
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public class DictionaryListInterfaceState {
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private static class State {
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public boolean mOpen = false;
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public int mStatus = MetadataDbHelper.STATUS_UNKNOWN;
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}
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private HashMap<String, State> mWordlistToState = CollectionUtils.newHashMap();
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private ArrayList<View> mViewCache = CollectionUtils.newArrayList();
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public boolean isOpen(final String wordlistId) {
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final State state = mWordlistToState.get(wordlistId);
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if (null == state) return false;
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return state.mOpen;
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}
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public int getStatus(final String wordlistId) {
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final State state = mWordlistToState.get(wordlistId);
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if (null == state) return MetadataDbHelper.STATUS_UNKNOWN;
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return state.mStatus;
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}
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public void setOpen(final String wordlistId, final int status) {
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final State newState;
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final State state = mWordlistToState.get(wordlistId);
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newState = null == state ? new State() : state;
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newState.mOpen = true;
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newState.mStatus = status;
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mWordlistToState.put(wordlistId, newState);
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}
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public void closeAll() {
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for (final State state : mWordlistToState.values()) {
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state.mOpen = false;
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}
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}
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public View findFirstOrphanedView() {
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for (final View v : mViewCache) {
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if (null == v.getParent()) return v;
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}
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return null;
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}
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public View addToCacheAndReturnView(final View view) {
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mViewCache.add(view);
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return view;
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}
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public void removeFromCache(final View view) {
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mViewCache.remove(view);
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}
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}
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