动态设置工具栏 - 福昕PDF支持中心

Foxit PDF for Android保存getCenterItems()获取到的数据格式，通过setCenterItems恢复设置。

支持通过读取json来设置
持久化保存工具栏配置
恢复工具栏配置

package com.foxit.pdfreader.fragment;

import static com.foxit.uiextensions.utils.AppUtil.getApplicationContext;

import android.content.Context;
import android.content.res.AssetManager;
import android.util.Log;

import com.foxit.uiextensions.UIExtensionsManager;
import com.foxit.uiextensions.controls.toolbar.ToolItemBean;
import com.foxit.uiextensions.controls.toolbar.ToolProperty;
import com.foxit.uiextensions.pdfreader.MainCenterItemBean;
import com.foxit.uiextensions.utils.AppSharedPreferences;
import com.foxit.uiextensions.utils.AppUtil;

import org.json.JSONArray;
import org.json.JSONObject;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;

public class CenterItemsManager {

    public static final String SP_NAME = "Foxit_Plugin_SP";
    public static final String TAB_ITEMS_KEY = "KEY_TAB_ITEMS";


    /**
     * 读取assets目录下的json文件
     *
     * @param fileName json文件Name
     * @param context  系统上下文
     * @return json字符串
     */
    public static String getJson(String fileName, Context context) {
        //将json数据变成字符串
        StringBuilder stringBuilder = new StringBuilder();
        try {
            //获取assets资源管理器
            AssetManager assetManager = context.getAssets();
            //通过管理器打开文件并读取
            BufferedReader bf = new BufferedReader(new InputStreamReader(
                    assetManager.open(fileName)));
            String line;
            while ((line = bf.readLine()) != null) {
                stringBuilder.append(line);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return stringBuilder.toString();
    }

    /**
     * 保存TabItems
     *
     * @param items getMainFrame().getCenterItems() 配置
     */
    public static void saveTabItems(List<MainCenterItemBean> items) {
        try {
            JSONObject rootObj = new JSONObject();
            JSONArray centerItemsObj = new JSONArray();
            rootObj.put("centerItems", centerItemsObj);

            for (MainCenterItemBean centerItem : items) {
                JSONObject centerObj = new JSONObject();
                centerObj.put("type", centerItem.type);
                centerObj.put("position", centerItem.position);

                if (centerItem.toolItems != null) {
                    JSONArray toolItemsObj = new JSONArray();
                    centerObj.put("toolItems", toolItemsObj);
                    for (ToolItemBean toolItem : centerItem.toolItems) {
                        JSONObject toolObj = new JSONObject();
                        toolObj.put("itemStyle", toolItem.itemStyle);
                        toolObj.put("type", toolItem.type);
                        {
                            ToolProperty property = toolItem.property;
                            JSONObject propObj = new JSONObject();

                            if (property != null) {
                                setToolPropObjVal(propObj, property);
                            }
                            toolObj.put("property", propObj);
                        }
                        toolItemsObj.put(toolObj);
                    }
                }
                centerItemsObj.put(centerObj);
            }
            Log.d("ddd", rootObj.toString());
            AppSharedPreferences.getInstance(getApplicationContext()).setString(SP_NAME, TAB_ITEMS_KEY, rootObj.toString());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * 恢复设置好的tabItems
     *
     * @param mUiExtensionsManager UiExtensionsManager
     */
    public static void restoreItems(UIExtensionsManager mUiExtensionsManager, String tabItems) {
        if (!AppUtil.isEmpty(tabItems)) {
            try {
                JSONObject rootObj = new JSONObject(tabItems);
                JSONArray centerItemsObj = rootObj.getJSONArray("centerItems");

                ArrayList<MainCenterItemBean> items = new ArrayList<>();
                for (int i = 0; i < centerItemsObj.length(); i++) {
                    JSONObject centerObj = centerItemsObj.getJSONObject(i);

                    MainCenterItemBean centerItem = new MainCenterItemBean();
                    centerItem.type = centerObj.getInt("type");
                    centerItem.position = centerObj.getInt("position");
                    if (!centerObj.has("toolItems")) {
                        items.add(centerItem);
                        continue;
                    }

                    centerItem.toolItems = new ArrayList<>();
                    JSONArray toolItemsObj = centerObj.getJSONArray("toolItems");
                    for (int toolIndex = 0; toolIndex < toolItemsObj.length(); toolIndex++) {
                        JSONObject toolObj = toolItemsObj.getJSONObject(toolIndex);

                        ToolItemBean toolItem = new ToolItemBean();
                        toolItem.itemStyle = toolObj.getInt("itemStyle");
                        toolItem.type = toolObj.getInt("type");
                        toolItem.property = new ToolProperty();
                        {
                            ToolProperty property = toolItem.property;
                            JSONObject propObj = toolObj.getJSONObject("property");

                            if (!setToolPropVal(property, propObj)) {
                                toolItem.property = null;
                            }
                        }
                        centerItem.toolItems.add(toolItem);
                    }
                    items.add(centerItem);
                }
                mUiExtensionsManager.getMainFrame().setCenterItems(items);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }


    /**
     * 设置工具属性值
     *
     * @param property 工具属性
     * @param propObj  JSON对象
     * @return 是否设置了属性
     */
    static boolean setToolPropVal(ToolProperty property, JSONObject propObj) {
        try {
            boolean haveProp = false;
            if (propObj.has("type")) {
                property.type = propObj.getInt("type");
                haveProp = true;
            }
            if (propObj.has("color")) {
                property.color = propObj.getInt("color");
                haveProp = true;
            }
            if (propObj.has("fillColor")) {
                property.fillColor = propObj.getInt("fillColor");
                haveProp = true;
            }
            if (propObj.has("opacity")) {
                property.opacity = propObj.getInt("opacity");
                haveProp = true;
            }
            if (propObj.has("style")) {
                property.style = propObj.getInt("style");
                haveProp = true;
            }
            if (propObj.has("rotation")) {
                property.rotation = propObj.getInt("rotation");
                haveProp = true;
            }
            if (propObj.has("lineWidth")) {
                property.lineWidth = (float) propObj.getDouble("lineWidth");
                haveProp = true;
            }
            if (propObj.has("fontSize")) {
                property.fontSize = (float) propObj.getDouble("fontSize");
                haveProp = true;
            }
            if (propObj.has("fontName")) {
                property.fontName = propObj.getString("fontName");
                haveProp = true;
            }
            if (propObj.has("scaleFromUnitIndex")) {
                property.scaleFromUnitIndex = propObj.getInt("scaleFromUnitIndex");
                haveProp = true;
            }
            if (propObj.has("scaleToUnitIndex")) {
                property.scaleToUnitIndex = propObj.getInt("scaleToUnitIndex");
                haveProp = true;
            }
            if (propObj.has("scaleFromValue")) {
                property.scaleFromValue = BigDecimal.valueOf(propObj.getDouble("scaleFromValue")).floatValue();
                haveProp = true;
            }
            if (propObj.has("scaleToValue")) {
                property.scaleToValue = BigDecimal.valueOf(propObj.getDouble("scaleToValue")).floatValue();
                haveProp = true;
            }
            if (propObj.has("eraserShape")) {
                property.eraserShape = propObj.getInt("eraserShape");
                haveProp = true;
            }
            if (propObj.has("tag")) {
                property.mTag = propObj.get("tag");
                haveProp = true;
            }
            return haveProp;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return false;
    }

    /**
     * 设置工具属性对象值
     *
     * @param propObj  工具属性对象
     * @param property 工具属性
     */
    static void setToolPropObjVal(JSONObject propObj, ToolProperty property) {
        try {
            propObj.put("type", property.type);
            propObj.put("color", property.color);
            propObj.put("fillColor", property.fillColor);
            propObj.put("opacity", property.opacity);
            propObj.put("style", property.style);
            propObj.put("rotation", property.rotation);
            propObj.put("lineWidth", property.lineWidth);
            propObj.put("fontSize", property.fontSize);
            propObj.put("fontName", property.fontName);
            propObj.put("scaleFromUnitIndex", property.scaleFromUnitIndex);
            propObj.put("scaleToUnitIndex", property.scaleToUnitIndex);
            propObj.put("scaleFromValue", property.scaleFromValue);
            propObj.put("scaleToValue", property.scaleToValue);
            propObj.put("eraserShape", property.eraserShape);
            if (property.mTag != null)
                propObj.put("tag", property.mTag);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}

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