Java tutorial
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We also recommend that a * file or class name and description of purpose be included on the * same "printed page" as the copyright notice for easier * identification within third-party archives. * * Copyright 2016 Alibaba Group * * 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 com.taobao.weex.dom; import android.support.annotation.NonNull; import android.support.v4.util.ArrayMap; import android.text.TextUtils; import com.taobao.weex.common.Constants; import com.taobao.weex.common.WXImageSharpen; import com.taobao.weex.utils.WXLogUtils; import com.taobao.weex.utils.WXUtils; import com.taobao.weex.utils.WXViewUtils; import java.util.Collection; import java.util.Map; import java.util.Set; /** * store value of component attribute * */ public class WXAttr implements Map<String, Object>, Cloneable { private static final long serialVersionUID = -2619357510079360946L; private @NonNull final ArrayMap<String, Object> map; public WXAttr() { map = new ArrayMap<>(); } public WXAttr(@NonNull Map<String, Object> standardMap) { this(); map.putAll(standardMap); } public static String getPrefix(Map<String, Object> attr) { if (attr == null) { return null; } Object src = attr.get(Constants.Name.PREFIX); if (src == null) { return null; } return src.toString(); } public static String getSuffix(Map<String, Object> attr) { if (attr == null) { return null; } Object src = attr.get(Constants.Name.SUFFIX); if (src == null) { return null; } return src.toString(); } /** * Compatible with value?content * * @return */ public static String getValue(Map<String, Object> attr) { if (attr == null) { return null; } Object src = attr.get(Constants.Name.VALUE); if (src == null) { src = attr.get("content"); if (src == null) { return null; } } return src.toString(); } public WXImageQuality getImageQuality() { Object obj = get(Constants.Name.QUALITY); if (obj == null) { obj = get(Constants.Name.IMAGE_QUALITY); } if (obj == null) { return WXImageQuality.LOW; } WXImageQuality waImageQuality = WXImageQuality.LOW; String imageQuality = obj.toString(); if (imageQuality.equals(Constants.Value.ORIGINAL)) { waImageQuality = WXImageQuality.ORIGINAL; } else if (imageQuality.equals(Constants.Value.LOW)) { waImageQuality = WXImageQuality.LOW; } else if (imageQuality.equals(Constants.Value.NORMAL)) { waImageQuality = WXImageQuality.NORMAL; } else if (imageQuality.equals(Constants.Value.HIGH)) { waImageQuality = WXImageQuality.HIGH; } return waImageQuality; } public WXImageSharpen getImageSharpen() { Object obj = get(Constants.Name.SHARPEN); if (obj == null) { obj = get(Constants.Name.IMAGE_SHARPEN); } if (obj == null) { return WXImageSharpen.UNSHARPEN; } String imageSharpen = obj.toString(); WXImageSharpen waImageSharpen = WXImageSharpen.UNSHARPEN; if (imageSharpen.equals("sharpen")) { waImageSharpen = WXImageSharpen.SHARPEN; } return waImageSharpen; } public String getImageSrc() { Object src = get(Constants.Name.SRC); if (src == null) { return null; } return src.toString(); } public boolean canRecycled() { Object obj = get(Constants.Name.RECYCLE); if (obj == null) { return true; } try { return Boolean.parseBoolean(String.valueOf(obj)); } catch (Exception e) { WXLogUtils.e("[WXAttr] recycle:", e); } return true; } public boolean showIndicators() { Object obj = get(Constants.Name.SHOW_INDICATORS); if (obj == null) { return true; } try { return Boolean.parseBoolean(String.valueOf(obj)); } catch (Exception e) { WXLogUtils.e("[WXAttr] showIndicators:", e); } return true; } public boolean autoPlay() { Object obj = get(Constants.Name.AUTO_PLAY); if (obj == null) { return false; } try { return Boolean.parseBoolean(String.valueOf(obj)); } catch (Exception e) { WXLogUtils.e("[WXAttr] autoPlay:", e); } return false; } public String getScope() { Object src = get(Constants.Name.SCOPE); if (src == null) { return null; } return src.toString(); } public String getLoadMoreRetry() { Object src = get(Constants.Name.LOADMORERETRY); if (src == null) { return null; } return src.toString(); } public String getLoadMoreOffset() { Object src = get(Constants.Name.LOADMOREOFFSET); if (src == null) { return null; } return src.toString(); } public String optString(String key) { if (containsKey(key)) { Object value = get(key); if (value instanceof String) { return (String) value; } else if (value != null) { return String.valueOf(value); } } return ""; } public boolean getIsRecycleImage() { Object obj = get(Constants.Name.RECYCLE_IMAGE); if (obj == null) { return true; } try { return Boolean.parseBoolean(String.valueOf(obj)); } catch (Exception e) { WXLogUtils.e("[WXAttr] recycleImage:", e); } return false; } public String getScrollDirection() { Object scrollDirection = get("scrollDirection"); if (scrollDirection == null) { return "vertical"; } return scrollDirection.toString(); } public float getElevation(int viewPortW) { Object obj = get(Constants.Name.ELEVATION); float ret = Float.NaN; if (obj != null) { String number = obj.toString(); if (!TextUtils.isEmpty(number)) { ret = WXViewUtils.getRealSubPxByWidth(WXUtils.getFloat(number), viewPortW); } else { ret = 0; } } return ret; } @Override public boolean equals(Object o) { return map.equals(o); } @Override public int hashCode() { return map.hashCode(); } @Override public void clear() { map.clear(); } @Override public boolean containsKey(Object key) { return map.containsKey(key); } @Override public boolean containsValue(Object value) { return map.containsValue(value); } @NonNull @Override public Set<Entry<String, Object>> entrySet() { return map.entrySet(); } @Override public Object get(Object key) { return map.get(key); } @Override public boolean isEmpty() { return map.isEmpty(); } @NonNull @Override public Set<String> keySet() { return map.keySet(); } @Override public Object put(String key, Object value) { return map.put(key, value); } @Override public void putAll(Map<? extends String, ?> map) { this.map.putAll(map); } @Override public Object remove(Object key) { return map.remove(key); } @Override public int size() { return map.size(); } @NonNull @Override public Collection<Object> values() { return map.values(); } @Override protected WXAttr clone() { return new WXAttr(map); } }