Java tutorial
/* * MIT License * * Copyright (c) 2018 Alibaba Group * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ package com.tmall.wireless.tangram3; import android.os.Build.VERSION; import android.support.v4.util.ArrayMap; import android.text.TextUtils; import android.view.View; import android.view.ViewGroup; import com.alibaba.android.vlayout.VirtualLayoutManager; import com.tmall.wireless.tangram3.core.service.ServiceManager; import com.tmall.wireless.tangram3.dataparser.concrete.BaseCellBinderResolver; import com.tmall.wireless.tangram3.structure.BaseCell; import com.tmall.wireless.tangram3.structure.view.ITangramViewLifeCycle; import com.tmall.wireless.tangram3.support.CellSupport; import com.tmall.wireless.tangram3.support.ExposureSupport; import com.tmall.wireless.tangram3.util.BDE; import org.json.JSONArray; import org.json.JSONObject; import java.lang.reflect.Method; import static com.tmall.wireless.tangram.dataparser.concrete.Style.MARGIN_BOTTOM_INDEX; import static com.tmall.wireless.tangram.dataparser.concrete.Style.MARGIN_LEFT_INDEX; import static com.tmall.wireless.tangram.dataparser.concrete.Style.MARGIN_RIGHT_INDEX; import static com.tmall.wireless.tangram.dataparser.concrete.Style.MARGIN_TOP_INDEX; /** * Created by mikeafc on 16/4/25. */ public class MVHelper { private static final String TAG = "Tangram-MVHelper"; private MVResolver mvResolver; private ComponentRenderManager renderManager; private ArrayMap<BaseCell, Method> postBindMap = new ArrayMap<>(128); private ArrayMap<BaseCell, Method> postUnBindMap = new ArrayMap<>(128); private ArrayMap<BaseCell, Method> cellInitedMap = new ArrayMap<>(128); public MVHelper(MVResolver mvResolver) { this.mvResolver = mvResolver; renderManager = new ComponentRenderManager(); } public MVResolver resolver() { return mvResolver; } public ComponentRenderManager renderManager() { return renderManager; } /** * FIXME sholud be called after original component's postUnBind method excuted */ public void reset() { postBindMap.clear(); postUnBindMap.clear(); cellInitedMap.clear(); mvResolver.reset(); } public boolean isValid(BaseCell cell, ServiceManager serviceManager) { boolean ret = cell.isValid(); if (serviceManager != null) { BaseCellBinderResolver componentBinderResolver = serviceManager .getService(BaseCellBinderResolver.class); ret = ret && (componentBinderResolver.has(cell.stringType) || cell.componentInfo != null && renderManager.getRenderService(cell.componentInfo.getType()) != null); CellSupport cellSupport = serviceManager.getService(CellSupport.class); if (cellSupport != null) { ret = cellSupport.isValid(cell) && ret; } } return ret; } public void mountView(BaseCell cell, View view) { try { mvResolver.register(cell, view); if (cell.serviceManager != null) { if (cell.serviceManager.supportRx()) { cell.emitNext(BDE.BIND); } CellSupport cellSupport = cell.serviceManager.getService(CellSupport.class); if (cellSupport != null) { cellSupport.bindView(cell, view); } } boolean renderServiceSuccess = renderManager.mountView(cell, view); if (!renderServiceSuccess) { initView(cell, view); } renderStyle(cell, view); postMountView(cell, view); if (cell.serviceManager != null) { CellSupport cellSupport = cell.serviceManager.getService(CellSupport.class); if (cellSupport != null) { cellSupport.postBindView(cell, view); } } } catch (Exception e) { e.printStackTrace(); if (cell.serviceManager != null) { CellSupport cellSupport = cell.serviceManager.getService(CellSupport.class); if (cellSupport != null) { cellSupport.onBindViewException(cell, view, e); } } } } public void unMountView(BaseCell cell, View view) { renderManager.unmountView(cell, view); if (cell.serviceManager != null) { if (cell.serviceManager.supportRx()) { cell.emitNext(BDE.UNBIND); } } postUnMountView(cell, view); if (cell.serviceManager != null) { CellSupport cellSupport = cell.serviceManager.getService(CellSupport.class); if (cellSupport != null) { cellSupport.unBindView(cell, view); } } } private void initView(BaseCell cell, View view) { if (view instanceof ITangramViewLifeCycle) { ((ITangramViewLifeCycle) view).cellInited(cell); } else { if (cellInitedMap.get(cell) != null) { try { cellInitedMap.get(cell).invoke(view, cell); } catch (Exception e) { e.printStackTrace(); } } } } private void renderStyle(BaseCell cell, View view) { renderLayout(cell, view); renderBackground(cell, view); } protected void renderLayout(BaseCell cell, View view) { if (cell.style != null) { ViewGroup.LayoutParams lp = view.getLayoutParams(); if (lp == null || !(lp instanceof VirtualLayoutManager.LayoutParams)) { if (lp == null) { lp = new VirtualLayoutManager.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT); } else { lp = new VirtualLayoutManager.LayoutParams(lp.width, lp.height); } view.setLayoutParams(lp); } if (lp instanceof VirtualLayoutManager.LayoutParams) { VirtualLayoutManager.LayoutParams params = (VirtualLayoutManager.LayoutParams) lp; if (cell.style.height >= 0) { params.storeOriginHeight(); params.height = cell.style.height; } else { params.restoreOriginHeight(); } if (cell.style.width >= 0) { params.storeOriginWidth(); params.width = cell.style.width; } else { params.restoreOriginWidth(); } params.mAspectRatio = cell.style.aspectRatio; params.zIndex = cell.style.zIndex; if (params.zIndex == 0) { if (cell.parent != null && cell.parent.style != null) { params.zIndex = cell.parent.style.zIndex; } } if (VERSION.SDK_INT >= 21) { view.setZ(params.zIndex); } } else { if (cell.style.height >= 0) { lp.height = cell.style.height; } if (cell.style.width >= 0) { lp.width = cell.style.width; } } if (lp instanceof ViewGroup.MarginLayoutParams) { ViewGroup.MarginLayoutParams layoutParams = (ViewGroup.MarginLayoutParams) lp; layoutParams.topMargin = cell.style.margin[MARGIN_TOP_INDEX]; layoutParams.leftMargin = cell.style.margin[MARGIN_LEFT_INDEX]; layoutParams.bottomMargin = cell.style.margin[MARGIN_BOTTOM_INDEX]; layoutParams.rightMargin = cell.style.margin[MARGIN_RIGHT_INDEX]; } // reset translation animation before reused view.setTranslationX(0); view.setTranslationY(0); } } protected void renderBackground(BaseCell cell, View view) { if (cell.style != null) { if (cell.style.bgColor != 0) { view.setBackgroundColor(cell.style.bgColor); } } } private void postMountView(BaseCell cell, View view) { if (!cell.mIsExposed && cell.serviceManager != null) { ExposureSupport exposureSupport = cell.serviceManager.getService(ExposureSupport.class); if (exposureSupport != null) { cell.mIsExposed = true; exposureSupport.onExposure(view, cell, cell.pos); } } if (view instanceof ITangramViewLifeCycle) { ((ITangramViewLifeCycle) view).postBindView(cell); } else { if (postBindMap.get(cell) != null) { try { postBindMap.get(cell).invoke(view, cell); } catch (Exception e) { e.printStackTrace(); } } } } private void postUnMountView(BaseCell cell, View view) { if (view instanceof ITangramViewLifeCycle) { ((ITangramViewLifeCycle) view).postUnBindView(cell); } else { if (postUnBindMap.get(cell) != null) { try { postUnBindMap.get(cell).invoke(view, cell); } catch (Exception e) { e.printStackTrace(); } } } } }