基于Eink App的K12机构课后作业系统设计源码

package name.wanghwx.ehomework.presenter; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Matrix; import android.graphics.PorterDuff; import android.graphics.Rect; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.util.Log; import android.view.View; import androidx.fragment.app.Fragment; import com.onyx.android.sdk.pen.RawInputCallback; import com.onyx.android.sdk.pen.TouchHelper; import com.onyx.android.sdk.pen.data.TouchPoint; import com.onyx.android.sdk.pen.data.TouchPointList; import com.onyx.android.sdk.utils.CollectionUtils; import com.onyx.android.sdk.utils.StringUtils; import java.io.File; import java.io.IOException; import java.io.Serializable; import java.net.URL; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Stack; import name.wanghwx.ehomework.common.constant.Category; import name.wanghwx.ehomework.common.constant.MapKey; import name.wanghwx.ehomework.common.constant.PreSuf; import name.wanghwx.ehomework.common.pojo.DisplayItem; import name.wanghwx.ehomework.common.pojo.DisplayOption; import name.wanghwx.ehomework.common.pojo.DisplayQuestion; import name.wanghwx.ehomework.common.pojo.EraserSetting; import name.wanghwx.ehomework.common.pojo.HttpCallback; import name.wanghwx.ehomework.common.pojo.PenSetting; import name.wanghwx.ehomework.common.pojo.Result; import name.wanghwx.ehomework.common.pojo.Step; import name.wanghwx.ehomework.common.pojo.Stroke; import name.wanghwx.ehomework.common.pojo.StrokeBoard; import name.wanghwx.ehomework.common.util.GsonUtils; import name.wanghwx.ehomework.model.HomeworkModel; import name.wanghwx.ehomework.model.MistakeBookModel; import name.wanghwx.ehomework.model.imodel.IHomeworkModel; import name.wanghwx.ehomework.model.imodel.IMistakeBookModel; import name.wanghwx.ehomework.pojo.Answer; import name.wanghwx.ehomework.pojo.Choice; import name.wanghwx.ehomework.pojo.Homework; import name.wanghwx.ehomework.pojo.Item; import name.wanghwx.ehomework.pojo.MistakeBook; import name.wanghwx.ehomework.pojo.Option; import name.wanghwx.ehomework.pojo.Question; import name.wanghwx.ehomework.pojo.Review; import name.wanghwx.ehomework.presenter.ipresenter.IHomeworkActivityPresenter; import name.wanghwx.ehomework.view.fragment.AudioFragment; import name.wanghwx.ehomework.view.fragment.CommentFragment; import name.wanghwx.ehomework.view.fragment.EraserFragment; import name.wanghwx.ehomework.view.fragment.ItemFragment; import name.wanghwx.ehomework.view.fragment.PenFragment; import name.wanghwx.ehomework.view.iactivity.IHomeworkActivity; import okhttp3.MediaType; import okhttp3.RequestBody; public class HomeworkActivityPresenter extends IHomeworkActivityPresenter implements Serializable { private static final Bundle bundles = new Bundle(); private Stack<Step<Stroke>> undoStack = new Stack<>(); private Stack<Step<Stroke>> redoStack = new Stack<>(); // 作业id private int homeworkId; // 查询得到的单次作业 private Homework homework; // 题目序号 private int number; private Handler handler = new Handler(message->{ if(message.what == number){ if(isViewAttached()) getView().renderDraw(true,false); return true; }else{ return false; } }); // 工具栏是否显示 private boolean showTool; // 工具栏工具码 private int tool; // 笔触设置 private PenSetting penSetting = new PenSetting(); // 橡皮设置 private EraserSetting eraserSetting = new EraserSetting(); private PenFragment penFragment = PenFragment.getInstance(penSetting); private EraserFragment eraserFragment = EraserFragment.getInstance(eraserSetting); // 指导栏是否显示 private boolean showGuidance; // 指导栏指导码 private int guidance; // 是否全屏显示 private boolean fullscreen; // 是否显示草稿 private boolean showDraft; // 是否显示答案 private boolean showReference; // 手写范围定宽 private int fixedWidth; // 当前滚动高度 private int scroll; // 最大滚动高度 private int maxScroll; private TouchHelper touchHelper; // 当前笔画 private Stroke currentStroke; // 滑动是否开启 private boolean slide; // 滑动初始高度 private int initialY; // 当前画布 private Canvas canvas; // 当前位图 private Bitmap bitmap; // 重绘线程 private Thread redraw; // 题目展示数据 private List<DisplayItem> displayItems = new ArrayList<>(); // 答题区手写板 private List<StrokeBoard> answerBoards = new ArrayList<>(); // 草稿区手写板 private List<StrokeBoard> draftBoards = new ArrayList<>(); // 题目展示控件 private List<ItemFragment> itemFragments = new ArrayList<>(); // 评语展示控件 private List<CommentFragment> commentFragments = new ArrayList<>(); // 留言展示控件 private List<AudioFragment> audioFragments = new ArrayList<>(); private IHomeworkModel homeworkModel = HomeworkModel.getInstance(); private IMistakeBookModel mistakeBookModel = MistakeBookModel.getInstance(); public HomeworkActivityPresenter(IHomeworkActivity homeworkActivity){ attachView(homeworkActivity); penFragment.setOnDecreaseClickListener(this::decreasePenWeight); penFragment.setOnProgressChangeListener(this::setPenWeight); penFragment.setOnIncreaseClickListener(this::increasePenWeight); eraserFragment.setOnClearClickListener(this::emptyBoard); } private void decreasePenWeight(){ penSetting.weight--; validatePenWeight(); } private void setPenWeight(int progress){ penSetting.weight = (float)progress; validatePenWeight(); } private void increasePenWeight(){ penSetting.weight++; validatePenWeight(); } // 清空，支持撤销功能 private void emptyBoard(){ StrokeBoard strokeBoard = getStrokeBoard(); if(strokeBoard != null){ Step<Stroke> step = strokeBoard.clearBoard(); if(step != null){ redoStack.clear(); undoStack.push(step); validateUndoRedo(); } redraw(); } } private void validatePenWeight(){ if(penSetting.weight <= PenSetting.MIN_WEIGHT){ penSetting.weight = PenSetting.MIN_WEIGHT; penFragment.disableDecrease(); }else{ penFragment.enableDecrease(); } if(penSetting.weight >= PenSetting.MAX_WEIGHT){ penSetting.weight = PenSetting.MAX_WEIGHT; penFragment.disableIncrease(); }else{ penFragment.enableIncrease(); } if(touchHelper != null){ touchHelper.setStrokeWidth(penSetting.weight); } penFragment.renderPenSetting(penSetting); } @Override public void getHomework(int homeworkId){ this.homeworkId = homeworkId; homeworkModel.getHomework(new HttpCallback<Homework>(getView()){ @Override public void success(Result<Homework> result){ Homework data = result.data(); if(data == null){ if(isViewAttached()) getView().nullData(); }else{ homework = data; load(); } } },this.homeworkId); } private void load(){ Bundle bundle = bundles.getBundle(PreSuf.HOMEWORK_PREFIX + homeworkId); List<Item> items = homework.getTask().getItems(); for(int i=0,il=items.size();i<il;i++){ int itemId = items.get(i).getItemId(); displayItems.