diff --git a/TimetableView/src/main/java/com/zhuangfei/timetable/TimetableView.java b/TimetableView/src/main/java/com/zhuangfei/timetable/TimetableView.java
index e121c97ac23d5515307a65f3aea87772e0b616c8..b752c84d3d68deb9e9aa5a706f6fb8a3d83a2584 100644
--- a/TimetableView/src/main/java/com/zhuangfei/timetable/TimetableView.java
+++ b/TimetableView/src/main/java/com/zhuangfei/timetable/TimetableView.java
@@ -783,7 +783,7 @@ public class TimetableView extends DirectionalLayout {
      */
     public ScheduleColorPool colorPool() {
         if (colorPool == null) {
-            colorPool = new ScheduleColorPool(context);
+            colorPool = new ScheduleColorPool();
         }
         return colorPool;
     }
diff --git a/TimetableView/src/main/java/com/zhuangfei/timetable/listener/OnSlideBuildAdapter.java b/TimetableView/src/main/java/com/zhuangfei/timetable/listener/OnSlideBuildAdapter.java
index 1f01b4159690b3759f5bd2a8b7f330588617c749..c650e654090b4e5a829e90500938edf100c4cd64 100644
--- a/TimetableView/src/main/java/com/zhuangfei/timetable/listener/OnSlideBuildAdapter.java
+++ b/TimetableView/src/main/java/com/zhuangfei/timetable/listener/OnSlideBuildAdapter.java
@@ -40,12 +40,16 @@ public class OnSlideBuildAdapter implements ISchedule.OnSlideBuildListener {
     /**
      * 设置时刻数组
      *
-     * @param times
+     * @param time
      *
      * @return OnSlideBuildAdapter
      */
-    public OnSlideBuildAdapter setTimes(String[] times) {
-        this.times = times;
+    public OnSlideBuildAdapter setTimes(String[] time) {
+        if (time != null) {
+            this.times = time.clone();
+        } else {
+            this.times = null;
+        }
         return this;
     }
 
@@ -60,7 +64,11 @@ public class OnSlideBuildAdapter implements ISchedule.OnSlideBuildListener {
      * @return String[]
      */
     public String[] getTimes() {
-        return times;
+        if (times != null) {
+            return times.clone();
+        } else {
+            return null;
+        }
     }
 
 
diff --git a/TimetableView/src/main/java/com/zhuangfei/timetable/model/Schedule.java b/TimetableView/src/main/java/com/zhuangfei/timetable/model/Schedule.java
index f71a21b3395327f6bc22b10c3e21a12ce75d38c4..7617744353877b1e42e58c924e663ec3f6c757f3 100644
--- a/TimetableView/src/main/java/com/zhuangfei/timetable/model/Schedule.java
+++ b/TimetableView/src/main/java/com/zhuangfei/timetable/model/Schedule.java
@@ -158,7 +158,7 @@ public class Schedule implements Serializable, Comparable<Schedule> {
     public int compareTo(Schedule o) {
         if (getStart() < o.getStart()) {
             return -1;
-        } else if (getStart() == o.getStart()) {
+        } else if (((Object)o.getStart()).equals(getStart())) {
             return 0;
         } else {
             return 1;
diff --git a/TimetableView/src/main/java/com/zhuangfei/timetable/model/ScheduleColorPool.java b/TimetableView/src/main/java/com/zhuangfei/timetable/model/ScheduleColorPool.java
index eac4a5ab0164a70dbdfdfce2662d985eaa5892d2..42bf40afddca4a15c97ad715a69551e4e042e880 100644
--- a/TimetableView/src/main/java/com/zhuangfei/timetable/model/ScheduleColorPool.java
+++ b/TimetableView/src/main/java/com/zhuangfei/timetable/model/ScheduleColorPool.java
@@ -9,9 +9,6 @@ import java.util.*;
  * 颜色池，管理课程项可挑选的颜色
  */
 public class ScheduleColorPool {
-
-    Context context;
-
     /**
      * 课程不在本周时的背景色
      */
@@ -25,8 +22,7 @@ public class ScheduleColorPool {
      */
     private boolean ignoreUserlessColor = false;
 
-    public ScheduleColorPool(Context context) {
-        this.context = context;
+    public ScheduleColorPool() {
         setUselessColor(new RgbColor(240,240,240));
         colorMap = new HashMap<>();
         reset();
@@ -185,11 +181,7 @@ public class ScheduleColorPool {
      * @return int
      */
     public int size() {
-        if (getPoolInstance() == null) {
-            return 0;
-        } else {
-            return getPoolInstance().size();
-        }
+        return getPoolInstance().size();
     }
 
     /**
diff --git a/TimetableView/src/main/java/com/zhuangfei/timetable/model/ScheduleConfig.java b/TimetableView/src/main/java/com/zhuangfei/timetable/model/ScheduleConfig.java
index 4ba242e5510d594f871492f571911fd5ece7ab44..ac21bede4347a1f460cad145da6f74b7356a53b8 100644
--- a/TimetableView/src/main/java/com/zhuangfei/timetable/model/ScheduleConfig.java
+++ b/TimetableView/src/main/java/com/zhuangfei/timetable/model/ScheduleConfig.java
@@ -20,11 +20,9 @@ public class ScheduleConfig {
 
     private Preferences mConfigPreferences;
     private Map<String, String> mConfigMap;
-    private Context context;
     private String configName = "default_schedule_config";
 
     public ScheduleConfig(Context context) {
-        this.context = context;
         mConfigMap = new HashMap<>();
         databaseHelper = new DatabaseHelper(context);
 
diff --git a/TimetableView/src/main/java/com/zhuangfei/timetable/model/ScheduleSupport.java b/TimetableView/src/main/java/com/zhuangfei/timetable/model/ScheduleSupport.java
index 31a7bf9cbbaa42ad6b5bb361f56bca1648525488..c301260674f8e1e5dfb183bef7490a2f958125ab 100644
--- a/TimetableView/src/main/java/com/zhuangfei/timetable/model/ScheduleSupport.java
+++ b/TimetableView/src/main/java/com/zhuangfei/timetable/model/ScheduleSupport.java
@@ -117,10 +117,10 @@ public class ScheduleSupport {
     public static int timeTransfrom(String startTime) {
         SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
         try {
-            long start = sdf.parse(startTime).getTime();
-            long end = new Date().getTime();
-            long seconds = (end - start) / 1000;
-            long day = seconds / (24 * 3600);
+            double start = sdf.parse(startTime).getTime();
+            double end = new Date().getTime();
+            double seconds = (end - start) / 1000;
+            double day = seconds / (24 * 3600);
             int week = (int) (Math.floor(day / 7) + 1);
             return week;
         } catch (ParseException e) {
diff --git a/TimetableView/src/main/java/com/zhuangfei/timetable/operater/SimpleOperater.java b/TimetableView/src/main/java/com/zhuangfei/timetable/operater/SimpleOperater.java
index 074baa7f0c13566d40edda75c8c954f952226bae..723b33df98cde25b66953692ee83d6db7191fab1 100644
--- a/TimetableView/src/main/java/com/zhuangfei/timetable/operater/SimpleOperater.java
+++ b/TimetableView/src/main/java/com/zhuangfei/timetable/operater/SimpleOperater.java
@@ -86,14 +86,14 @@ public class SimpleOperater extends AbsOperater {
         this.context = context;
         mView = view;
         inflater = LayoutScatter.getInstance(context);
-        Component parse = inflater.parse(ResourceTable.Layout_timetable_layout, mView, true);
+        inflater.parse(ResourceTable.Layout_timetable_layout, mView, true);
 
         containerLayout = (DirectionalLayout) mView.findComponentById(ResourceTable.Id_id_container);
         dateLayout = (DirectionalLayout) mView.findComponentById(ResourceTable.Id_id_datelayout);
         mView.monthWidthDp(MONTH_WIDTH);
         initAttr(attrs);
         scheduleConfig = new ScheduleConfig(context);
-        
+
     }
 
     /**
@@ -184,11 +184,11 @@ public class SimpleOperater extends AbsOperater {
      * newItemView
      *
      * @param originData 数据源
-     * @param data 某一天的数据集合
-     * @param subject 当前的课程数据
-     * @param pre 上一个课程数据
-     * @param i 构建的索引
-     * @param curWeek 当前周
+     * @param data       某一天的数据集合
+     * @param subject    当前的课程数据
+     * @param pre        上一个课程数据
+     * @param i          构建的索引
+     * @param curWeek    当前周
      * @return View
      */
     private Component newItemView(final List<Schedule> originData, final List<Schedule> data,
@@ -377,11 +377,7 @@ public class SimpleOperater extends AbsOperater {
          * 判断点击的是第几节课，1：第1节
          */
         final int start;
-        if (mView.isShowWeekView()) {
-            start = (int) Math.ceil(y  / (mView.itemHeight() + mView.marTop()));
-        } else {
-            start = (int) Math.ceil(y / (mView.itemHeight() + mView.marTop()));
-        }
+        start = (int) Math.ceil(y / (mView.itemHeight() + mView.marTop()));
         if (!checkPosition(day, start)) {
             mView.onSpaceItemClickListener().onSpaceItemClick(day, start);
         }
@@ -587,13 +583,13 @@ public class SimpleOperater extends AbsOperater {
      * @return 宽度
      */
     protected float getPerWidth() {
-        float perWidth = 0;
+        double perWidth = 0;
         if (mView.isShowWeekends()) {
-            perWidth = (ScreenUtils.getDisplayWidth(context) - mView.monthWidth()) / 7;
+            perWidth = ((double) ScreenUtils.getDisplayWidth(context) - (double) mView.monthWidth()) / 7;
         } else {
-            perWidth = (ScreenUtils.getDisplayWidth(context) - mView.monthWidth()) / 5;
+            perWidth = ((double) ScreenUtils.getDisplayWidth(context) - (double) mView.monthWidth()) / 5;
         }
-        return perWidth;
+        return (float) perWidth;
     }
 
     /**
diff --git a/TimetableView/src/main/java/com/zhuangfei/timetable/view/PerWeekView.java b/TimetableView/src/main/java/com/zhuangfei/timetable/view/PerWeekView.java
index adcd5dc0143a42cbaacddc8c2d4ddf48692eb54a..1cd3fdcc900a708d2b6309696546222b4df2ca99 100644
--- a/TimetableView/src/main/java/com/zhuangfei/timetable/view/PerWeekView.java
+++ b/TimetableView/src/main/java/com/zhuangfei/timetable/view/PerWeekView.java
@@ -174,7 +174,7 @@ public class PerWeekView extends Component {
      * @return PerWeekView
      */
     public PerWeekView setRadiusInPx(int radiusPx) {
-        this.radius = radius;
+        this.radius = radiusPx;
         return this;
     }
 
@@ -189,15 +189,6 @@ public class PerWeekView extends Component {
         return this;
     }
 
-    /**
-     *  构造
-     *   *
-     * @param context
-     */
-    public PerWeekView(Context context) {
-        this(context, null);
-    }
-
     /**
      * 构造函数
      * *
diff --git a/build.gradle b/build.gradle
index 6d84aa70c88e0c7efda1fd4564268fe1d713ab0e..8d6324b05b02acab23677c12f5f9591f19954132 100644
--- a/build.gradle
+++ b/build.gradle
@@ -19,8 +19,8 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.huawei.ohos:hap:2.4.2.7'
-        classpath 'com.huawei.ohos:decctest:1.0.0.6'
+        classpath 'com.huawei.ohos:hap:2.4.5.0'
+        classpath 'com.huawei.ohos:decctest:1.2.4.1'
     }
 }
 
diff --git a/entry/src/main/java/com/zhuangfei/ohos_timetableview/adapter/ChooseAdapter.java b/entry/src/main/java/com/zhuangfei/ohos_timetableview/adapter/ChooseAdapter.java
index ea55f484aff4597f837e1d1027224b0d39e57a33..4121d9c567084e574a63e5c624a21ac7fcaeed5e 100644
--- a/entry/src/main/java/com/zhuangfei/ohos_timetableview/adapter/ChooseAdapter.java
+++ b/entry/src/main/java/com/zhuangfei/ohos_timetableview/adapter/ChooseAdapter.java
@@ -30,7 +30,6 @@ import java.util.ArrayList;
  */
 public class ChooseAdapter extends BaseItemProvider {
     ArrayList<WeekChooseBean> datas;
-    Context context;
     LayoutScatter inflater;
     private CheckListen checkListen;
 
@@ -41,7 +40,6 @@ public class ChooseAdapter extends BaseItemProvider {
      * @param data
      */
     public ChooseAdapter(Context context, ArrayList<WeekChooseBean> data) {
-        this.context = context;
         this.datas = data;
         inflater = LayoutScatter.getInstance(context);
     }
diff --git a/entry/src/main/java/com/zhuangfei/ohos_timetableview/adapter/NonViewAdapter.java b/entry/src/main/java/com/zhuangfei/ohos_timetableview/adapter/NonViewAdapter.java
index 09e12700afcf304f5d6b023dbf92b0c2ee1e6a4b..8e604c15704a31ec711b3fe9b7f0e7e60eefdb4c 100644
--- a/entry/src/main/java/com/zhuangfei/ohos_timetableview/adapter/NonViewAdapter.java
+++ b/entry/src/main/java/com/zhuangfei/ohos_timetableview/adapter/NonViewAdapter.java
@@ -32,7 +32,6 @@ import java.util.List;
  */
 public class NonViewAdapter extends BaseItemProvider {
     List<Schedule> schedules;
-    Context context;
     LayoutScatter inflater;
 
     /**
@@ -42,7 +41,6 @@ public class NonViewAdapter extends BaseItemProvider {
      * @param schedules
      */
     public NonViewAdapter(Context context, List<Schedule> schedules) {
-        this.context = context;
         this.schedules = schedules;
         inflater = LayoutScatter.getInstance(context);
     }
@@ -77,7 +75,7 @@ public class NonViewAdapter extends BaseItemProvider {
         }
 
         Schedule schedule = (Schedule) getItem(i);
-        ScheduleColorPool colorPool = new ScheduleColorPool(context);
+        ScheduleColorPool colorPool = new ScheduleColorPool();
         holder.nameTextView.setText(schedule.getName());
         RgbColor colorAuto = colorPool.getColorAuto(schedule.getColorRandom());
         ShapeElement shapeElement = new ShapeElement();
@@ -91,7 +89,7 @@ public class NonViewAdapter extends BaseItemProvider {
      *
      * @since 2021-03-29
      */
-    class ViewHolder {
+    static class ViewHolder {
         Text nameTextView;
         Text colorTextView;
     }
diff --git a/entry/src/main/java/com/zhuangfei/ohos_timetableview/custom/CustomOperater.java b/entry/src/main/java/com/zhuangfei/ohos_timetableview/custom/CustomOperater.java
index 6de8d336d7fbac9ea653e72141ad4f8be47e7381..2e99e21749c297fc036047900debe5882f4554a2 100644
--- a/entry/src/main/java/com/zhuangfei/ohos_timetableview/custom/CustomOperater.java
+++ b/entry/src/main/java/com/zhuangfei/ohos_timetableview/custom/CustomOperater.java
@@ -36,7 +36,7 @@ public class CustomOperater extends SimpleOperater {
      */
     public CustomOperater() {
         weights = new float[7];
-        for (int i = 0;i < weights.length;i++) {
+        for (int i = 0; i < weights.length; i++) {
             weights[i] = 1;
         }
     }
@@ -47,10 +47,10 @@ public class CustomOperater extends SimpleOperater {
         if (weights == null) {
             return;
         }
-        for (int i = 0;i < panels.length;i++) {
+        for (int i = 0; i < panels.length; i++) {
             DirectionalLayout.LayoutConfig lp = new DirectionalLayout.LayoutConfig(0,
                     DirectionalLayout.LayoutConfig.MATCH_PARENT,
-                    DirectionalLayout.LayoutConfig.UNSPECIFIED_ALIGNMENT,weights[i]);
+                    DirectionalLayout.LayoutConfig.UNSPECIFIED_ALIGNMENT, weights[i]);
             panels[i].setLayoutConfig(lp);
 
         }
@@ -63,12 +63,17 @@ public class CustomOperater extends SimpleOperater {
      */
     public void setWidthWeights(float[] weight) {
         if (weight == null || weight.length < 7) {
-            return;
+            this.weights = null;
+        } else {
+            this.weights = weight.clone();
         }
-        this.weights = weight;
     }
 
     public float[] getWeights() {
-        return weights;
+        if (this.weights != null) {
+            return weights.clone();
+        } else {
+            return null;
+        }
     }
 }
diff --git a/entry/src/main/java/com/zhuangfei/ohos_timetableview/dialog/DialogUtil.java b/entry/src/main/java/com/zhuangfei/ohos_timetableview/dialog/DialogUtil.java
index 169c9bba4b8f2a653c366b3d55ab9cd8aa94f601..e235de3e9b1a2faae2fe0514764c999fe236a563 100644
--- a/entry/src/main/java/com/zhuangfei/ohos_timetableview/dialog/DialogUtil.java
+++ b/entry/src/main/java/com/zhuangfei/ohos_timetableview/dialog/DialogUtil.java
@@ -29,17 +29,6 @@ import ohos.app.Context;
  * @since 2021-03-29
  */
 public class DialogUtil {
-    Context context;
-
-    /**
-     * DialogUtil
-     *
-     * @param context
-     */
-    public DialogUtil(Context context) {
-        this.context = context;
-    }
-
     /**
      * 显示方法
      *
diff --git a/entry/src/main/java/com/zhuangfei/ohos_timetableview/model/SubjectRepertory.java b/entry/src/main/java/com/zhuangfei/ohos_timetableview/model/SubjectRepertory.java
index f8004d7a39ee1d6b5ce8205f62bbf1fdc44d0da3..027ddfc68b64665a684586df17858d1fec8fb4a3 100644
--- a/entry/src/main/java/com/zhuangfei/ohos_timetableview/model/SubjectRepertory.java
+++ b/entry/src/main/java/com/zhuangfei/ohos_timetableview/model/SubjectRepertory.java
@@ -2,6 +2,7 @@ package com.zhuangfei.ohos_timetableview.model;
 
 import com.alibaba.fastjson.JSONArray;
 import com.alibaba.fastjson.JSONException;
+import com.zhuangfei.ohos_timetableview.utils.LogUtils;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -84,7 +85,7 @@ public class SubjectRepertory {
                 courses.add(new MySubject(term, name, room, teacher, getWeekList(weeks), start, step, day, -1, null));
             }
         } catch (JSONException e) {
-                String exception = e.toString();
+            LogUtils.error("JSONException:",e.toString());
         }
         return courses;
     }
diff --git a/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/AttrSlice.java b/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/AttrSlice.java
index 9fd4d05ff1f7529052addd34508c50e133f9cf9b..18b32af22170f3aefd66db4c278cddce9d7b40f0 100644
--- a/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/AttrSlice.java
+++ b/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/AttrSlice.java
@@ -79,10 +79,11 @@ public class AttrSlice extends BaseAbilitySlice {
      * @param beans
      */
     protected void display(List<Schedule> beans) {
-        String str = "";
+        StringBuffer s = new StringBuffer();
         for (Schedule bean : beans) {
-            str += bean.getName() + "、";
+            s.append(bean.getName() + "、");
         }
+        String str = s.toString();
         ToastViewDialog.toast(AttrSlice.this, str);
     }
 }
diff --git a/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/BaseFuncSlice.java b/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/BaseFuncSlice.java
index 52dd71330b81a4bb279f44fbf176733e2c5d6e21..2e854bc8d6040b739bfa2b12268952fb4186975d 100644
--- a/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/BaseFuncSlice.java
+++ b/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/BaseFuncSlice.java
@@ -234,11 +234,12 @@ public class BaseFuncSlice extends BaseAbilitySlice implements Component.Clicked
      * @param beans
      */
     protected void display(List<Schedule> beans) {
-        String str = "";
+        StringBuffer s = new StringBuffer();
         for (Schedule bean : beans) {
-            str += bean.getName() + "," + bean.getWeekList().toString() + ","
-                    + bean.getStart() + "," + bean.getStep() + "\n";
+            s.append(bean.getName() + "," + bean.getWeekList().toString() + ","
+                    + bean.getStart() + "," + bean.getStep() + "\n");
         }
+        String str = s.toString();
         ToastViewDialog.toast(this, str);
     }
 
diff --git a/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/CustomWidthSlice.java b/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/CustomWidthSlice.java
index 6e0e6214ab59b191a18418af64d323294d2bbb62..e7f7e23faeaf3a8db5969b666b9f07dcbc1f471f 100644
--- a/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/CustomWidthSlice.java
+++ b/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/CustomWidthSlice.java
@@ -81,12 +81,12 @@ public class CustomWidthSlice extends BaseAbilitySlice {
                         Component[] views = new Component[8];
                         views[0] = onBuildMonthLayout(scatter, (int) monthWidth, height);
                         float[] weights = operater.getWeights();
-                        float sum = 0;
+                        double sum = 0;
                         for (int i = 0; i < weights.length; i++) {
                             sum += weights[i];
                         }
                         for (int i = 1; i < 8; i++) {
-                            float rato = weights[i - 1] / sum;
+                            double rato = weights[i - 1] / sum;
                             views[i] = onBuildDayLayout(scatter, i, (int) (7 * perWidth * rato), height);
                         }
                         return views;
@@ -102,12 +102,12 @@ public class CustomWidthSlice extends BaseAbilitySlice {
                             return;
                         }
                         float[] weights = operater.getWeights();
-                        float sum = 0;
+                        double sum = 0;
                         for (int i = 0; i < weights.length; i++) {
                             sum += weights[i];
                         }
                         int newItemWidth = (int) (super.itemWidth * 7 * weights[day] / sum);
-                        float newMarLeft = 0;
+                        double newMarLeft = 0;
                         for (int i = 0; i < day; i++) {
                             newMarLeft += super.itemWidth * 7 * weights[i] / sum;
                         }
diff --git a/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/ExtrasSlice.java b/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/ExtrasSlice.java
index b2a9d2b1b3682b73158456fffd730ad3c43363fa..6c0033dfcb309c47a43171591d3bae0b06219863 100644
--- a/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/ExtrasSlice.java
+++ b/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/ExtrasSlice.java
@@ -75,10 +75,11 @@ public class ExtrasSlice extends BaseAbilitySlice {
      * @param beans
      */
     protected void display(List<Schedule> beans) {
-        String str = "";
+        StringBuffer s = new StringBuffer();
         for (Schedule bean : beans) {
-            str += "[" + bean.getName() + "]的id:" + bean.getExtras().get(MySubject.EXTRAS_ID) + "\n";
+            s.append("[" + bean.getName() + "]的id:" + bean.getExtras().get(MySubject.EXTRAS_ID) + "\n");
         }
+        String str = s.toString();
         ToastViewDialog.toast(this, str);
     }
 
diff --git a/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/FlaglayoutSlice.java b/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/FlaglayoutSlice.java
index ac4f7ebf04acbe2b99e2f0152d721d3382c0b488..42c5fc9001ecb1936ab7bb79ebb53e7f529b79c0 100644
--- a/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/FlaglayoutSlice.java
+++ b/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/FlaglayoutSlice.java
@@ -126,10 +126,11 @@ public class FlaglayoutSlice extends BaseAbilitySlice {
      * @param beans
      */
     protected void display(List<Schedule> beans) {
-        String str = "";
+        StringBuffer s = new StringBuffer();
         for (Schedule bean : beans) {
-            str += bean.getName() + "、";
+            s.append(bean.getName() + "、");
         }
+        String str = s.toString();
         ToastViewDialog.toast(this, str);
     }
 
diff --git a/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/LocalConfigSlice.java b/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/LocalConfigSlice.java
index 627a57bff090cc0b550f99d1433043ba481f94f7..30601e2877f6f26acecfba96b0eb6c8400581082 100644
--- a/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/LocalConfigSlice.java
+++ b/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/LocalConfigSlice.java
@@ -162,11 +162,12 @@ public class LocalConfigSlice extends BaseAbilitySlice {
     private void exportLocalConfig() {
         Set<String> set = mScheduleConfig.export();
         configSet = set;
-        String content = "";
+        StringBuffer content = new StringBuffer();
         for (String s : set) {
-            content += s + "\n";
+            content.append(s + "\n");
         }
-        DialogUtil.show(this, "配置导出", content);
+        String str = content.toString();
+        DialogUtil.show(this, "配置导出", str);
 
 
     }
diff --git a/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/SimpleSlice.java b/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/SimpleSlice.java
index 8fc0c7e68faaa6f48d3a88002e51768d6286b5ac..afe03719c58c8bdd6dc3b6378731e879df871895 100644
--- a/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/SimpleSlice.java
+++ b/entry/src/main/java/com/zhuangfei/ohos_timetableview/slice/SimpleSlice.java
@@ -24,6 +24,7 @@ import com.zhuangfei.ohos_timetableview.dialog.ToastViewDialog;
 import com.zhuangfei.ohos_timetableview.model.MySubject;
 import com.zhuangfei.ohos_timetableview.model.SubjectRepertory;
 import com.zhuangfei.ohos_timetableview.spinner.MaterialSpinner;
+import com.zhuangfei.ohos_timetableview.utils.LogUtils;
 import com.zhuangfei.timetable.TimetableView;
 import com.zhuangfei.timetable.listener.ISchedule;
 import com.zhuangfei.timetable.listener.IWeekView;
@@ -326,11 +327,12 @@ public class SimpleSlice extends BaseAbilitySlice implements Component.ClickedLi
      * @param beans
      */
     protected void display(List<Schedule> beans) {
-        String str = "";
+        StringBuffer s = new StringBuffer();
         for (Schedule bean : beans) {
-            str += bean.getName() + "," + bean.getWeekList().toString() + ","
-                    + bean.getStart() + "," + bean.getStep() + "\n";
+            s.append(bean.getName() + "," + bean.getWeekList().toString() + ","
+                    + bean.getStart() + "," + bean.getStep() + "\n");
         }
+        String str = s.toString();
         ToastViewDialog.toast(this, str);
     }
 
@@ -389,9 +391,9 @@ public class SimpleSlice extends BaseAbilitySlice implements Component.ClickedLi
             }
 
         } catch (MalformedURLException e) {
-            String ex = e.toString();
+            LogUtils.error("MalformedURLException:",e.toString());
         } catch (IOException e) {
-            String ex = e.toString();
+            LogUtils.error("IOException:",e.toString());
         }
         return pixelMap;
     }
diff --git a/entry/src/main/java/com/zhuangfei/ohos_timetableview/spinner/MaterialSpinner.java b/entry/src/main/java/com/zhuangfei/ohos_timetableview/spinner/MaterialSpinner.java
index a7d22f2bd8faa40df3aadc140a7032194d945609..f674b1ae81325f988d48635fc828bcb585f36eed 100644
--- a/entry/src/main/java/com/zhuangfei/ohos_timetableview/spinner/MaterialSpinner.java
+++ b/entry/src/main/java/com/zhuangfei/ohos_timetableview/spinner/MaterialSpinner.java
@@ -99,16 +99,6 @@ public class MaterialSpinner extends Text implements Component.TouchEventListene
     private String hintText;
     private com.zhuangfei.ohos_timetableview.spinner.MaterialSpinnerBaseAdapter mAdapter;
 
-    /**
-     * MaterialSpinner
-     *
-     * @param context
-     */
-    public MaterialSpinner(Context context) {
-        super(context);
-        init(context, null);
-    }
-
     /**
      * 构造方法
      *
@@ -486,8 +476,8 @@ public class MaterialSpinner extends Text implements Component.TouchEventListene
             setText("");
         }
         if (shouldResetPopupHeight) {
-            popupWindow.setSize(getWidth(), adapterInternal.getCount() * ScreenUtils.pxToFp(mContext,36) + 10);
-            listView.setComponentSize(getWidth(), adapterInternal.getCount() * ScreenUtils.pxToFp(mContext,36) + 10);
+            popupWindow.setSize(getWidth(), adapterInternal.getCount() * ScreenUtils.pxToFp(mContext, 36) + 10);
+            listView.setComponentSize(getWidth(), adapterInternal.getCount() * ScreenUtils.pxToFp(mContext, 36) + 10);
         }
     }
 
@@ -505,9 +495,9 @@ public class MaterialSpinner extends Text implements Component.TouchEventListene
             initPopupWindow(mContext);
 
             popupWindow.setSize(ScreenUtils.getDisplayWidth(mContext) / 5 * 2,
-                    adapter.getCount() * ScreenUtils.pxToFp(mContext,36) + 10);
+                    adapter.getCount() * ScreenUtils.pxToFp(mContext, 36) + 10);
             listView.setComponentSize(ScreenUtils.getDisplayWidth(mContext) / 5 * 2,
-                    adapter.getCount() * ScreenUtils.pxToFp(mContext,36) + 10);
+                    adapter.getCount() * ScreenUtils.pxToFp(mContext, 36) + 10);
             int[] locationOnScreen = this.getLocationOnScreen();
             HiLog.info(LABEL, "locationOnScreen[1] = " + locationOnScreen[1] + ", "
                     + spinnerWidth + ",locationOnScreen[1]" + locationOnScreen[1]);
@@ -568,11 +558,7 @@ public class MaterialSpinner extends Text implements Component.TouchEventListene
         if (rtl) {
             setLayoutDirection(LayoutDirection.RTL);
         }
-        if (shouldRotateUp) {
-            arrowDrawable = com.zhuangfei.ohos_timetableview.spinner.Utils.getPixelMapElement(mContext, ResourceTable.Media_ic_more);
-        } else {
-            arrowDrawable = com.zhuangfei.ohos_timetableview.spinner.Utils.getPixelMapElement(mContext, ResourceTable.Media_ic_more);
-        }
+        arrowDrawable = com.zhuangfei.ohos_timetableview.spinner.Utils.getPixelMapElement(mContext, ResourceTable.Media_ic_more);
         /**
          * 旋转图片 动作
          */
diff --git a/entry/src/main/java/com/zhuangfei/ohos_timetableview/spinner/Utils.java b/entry/src/main/java/com/zhuangfei/ohos_timetableview/spinner/Utils.java
index 39466c85b5ae5388a3429134efdc9f06eabde8f4..aca8b53cd4204abdf1e23832c65bccf11c57aa28 100644
--- a/entry/src/main/java/com/zhuangfei/ohos_timetableview/spinner/Utils.java
+++ b/entry/src/main/java/com/zhuangfei/ohos_timetableview/spinner/Utils.java
@@ -57,9 +57,10 @@ final class Utils {
      * @return lighter version of the specified color.
      */
     static int lighter(int color, float factor) {
-        int red = (int) ((Integer.parseInt(red(color), 16) * (1 - factor) / 255 + factor) * 255);
-        int green = (int) ((Integer.parseInt(green(color), 16) / 255 + factor) * 255);
-        int blue = (int) ((Integer.parseInt(blue(color), 16) * (1 - factor) / 255 + factor) * 255);
+        double f = factor;
+        int red = (int) (((double)Integer.parseInt(red(color), 16) * (1 - f) / 255 + f) * 255);
+        int green = (int) (((double)Integer.parseInt(green(color), 16) / 255 + f) * 255);
+        int blue = (int) (((double)Integer.parseInt(blue(color), 16) * (1 - f) / 255 + f) * 255);
         return Color.argb(Color.alpha(color), red, green, blue);
     }
 
diff --git a/entry/src/main/java/com/zhuangfei/ohos_timetableview/utils/LogUtils.java b/entry/src/main/java/com/zhuangfei/ohos_timetableview/utils/LogUtils.java
new file mode 100644
index 0000000000000000000000000000000000000000..0945d26d78a49b71ddf92a048dff148dfb3231cd
--- /dev/null
+++ b/entry/src/main/java/com/zhuangfei/ohos_timetableview/utils/LogUtils.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2021 The Huawei Device Co., Ltd.
+ * 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.zhuangfei.ohos_timetableview.utils;
+
+import ohos.hiviewdfx.HiLog;
+import ohos.hiviewdfx.HiLogLabel;
+
+/**
+ * LogUtils
+ *
+ * @since 2021-03-27
+ */
+public class LogUtils {
+    private static final String TAG_LOG = "LogUtil";
+    private static final HiLogLabel LABEL_LOG = new HiLogLabel(0, 0, LogUtils.TAG_LOG);
+    private static final String LOG_FORMAT = "%{public}s: %{public}s";
+    private static final int NUM_123456 = 0x123456;
+
+    private LogUtils() {
+    }
+
+    /**
+     * Print info log
+     *
+     * @param tag log tag
+     * @param msg log message
+     */
+    public static void info(String tag, String msg) {
+        HiLog.info(LABEL_LOG, LOG_FORMAT, tag, msg);
+    }
+
+    /**
+     * Print error log
+     *
+     * @param tag log tag
+     * @param msg log message
+     */
+    public static void error(String tag, String msg) {
+        HiLog.error(LABEL_LOG, LOG_FORMAT, tag, msg);
+    }
+
+    /**
+     * I
+     *
+     * @param value
+     */
+    public static void i(String value) {
+        HiLogLabel label = new HiLogLabel(HiLog.LOG_APP, NUM_123456, "");
+        HiLog.error(label, "logutil" + value);
+    }
+}
diff --git a/entry/src/main/java/com/zhuangfei/ohos_timetableview/views/ElasticScrollView.java b/entry/src/main/java/com/zhuangfei/ohos_timetableview/views/ElasticScrollView.java
index b2bd80177972324d89f6be8cf1a0a9a2459737d6..5e6d66ff94c3fbb407460f6eb44ba5ff8bfe8d9b 100644
--- a/entry/src/main/java/com/zhuangfei/ohos_timetableview/views/ElasticScrollView.java
+++ b/entry/src/main/java/com/zhuangfei/ohos_timetableview/views/ElasticScrollView.java
@@ -19,7 +19,7 @@ import ohos.multimodalinput.event.TouchEvent;
  */
 public class ElasticScrollView extends ScrollView implements Component.TouchEventListener {
     private Component inner;
-    private float yy;
+    private double yy;
     private Rect normal = new Rect();
     private boolean animationFinish = true;
 
@@ -62,8 +62,8 @@ public class ElasticScrollView extends ScrollView implements Component.TouchEven
                     }
                     break;
                 case TouchEvent.POINT_MOVE:
-                    final float preY = yy == 0 ? point.getY() : yy;
-                    float nowY = point.getY();
+                    final double preY = yy == 0 ? point.getY() : yy;
+                    double nowY = point.getY();
                     int deltaY = (int) (preY - nowY);
 
                     yy = nowY;