diff --git a/app/src/main/java/com/example/stlink/activitys/fragmentChild/activityTeaHome/CheckCourseSign.java b/app/src/main/java/com/example/stlink/activitys/fragmentChild/activityTeaHome/CheckCourseSign.java
index be35db8..24e2e98 100644
--- a/app/src/main/java/com/example/stlink/activitys/fragmentChild/activityTeaHome/CheckCourseSign.java
+++ b/app/src/main/java/com/example/stlink/activitys/fragmentChild/activityTeaHome/CheckCourseSign.java
@@ -86,7 +86,6 @@ public class CheckCourseSign extends AppCompatActivity {
         initPage();
     }
 
-
     private void initView(){
         CommonUtils.changeStatusBar(CheckCourseSign.this);
 
@@ -117,16 +116,13 @@ public class CheckCourseSign extends AppCompatActivity {
         });
         getCourseSignMsg();
 
-        shareImageHandler = new Handler(new Handler.Callback() {
-            @Override
-            public boolean handleMessage(@NonNull Message msg) {
-                if(msg.arg1 == 200){
-                    Intent shareIntent = (Intent) msg.obj;
-                    System.out.println("Here...............shareImageHandler.....");
-                    startActivity(Intent.createChooser(shareIntent, "分享图片"));
-                }
-                return false;
+        shareImageHandler = new Handler(msg -> {
+            if(msg.arg1 == 200){
+                Intent shareIntent = (Intent) msg.obj;
+                System.out.println("Here...............shareImageHandler.....");
+                startActivity(Intent.createChooser(shareIntent, "分享图片"));
             }
+            return false;
         });
 
         // 意图函数加载器
@@ -174,13 +170,11 @@ public class CheckCourseSign extends AppCompatActivity {
                 ivCode.setVisibility(View.VISIBLE);
             });
             ivCodeBig.setOnLongClickListener(v12 -> {
-                Toast.makeText(CheckCourseSign.this, "长按", Toast.LENGTH_SHORT).show();
                 shareImage();
                 return true;
             });
         });
         ivCode.setOnLongClickListener(v -> {
-            Toast.makeText(CheckCourseSign.this, "长按", Toast.LENGTH_SHORT).show();
             shareImage();
             return true;
         });
diff --git a/app/src/main/java/com/example/stlink/activitys/fragmentChild/activityTeaHome/CreateSign.java b/app/src/main/java/com/example/stlink/activitys/fragmentChild/activityTeaHome/CreateSign.java
index f02f924..1d3cffc 100644
--- a/app/src/main/java/com/example/stlink/activitys/fragmentChild/activityTeaHome/CreateSign.java
+++ b/app/src/main/java/com/example/stlink/activitys/fragmentChild/activityTeaHome/CreateSign.java
@@ -2,6 +2,7 @@ package com.example.stlink.activitys.fragmentChild.activityTeaHome;
 
 import android.content.Intent;
 import android.graphics.Bitmap;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Message;
@@ -15,6 +16,7 @@ import androidx.activity.result.ActivityResultLauncher;
 import androidx.activity.result.contract.ActivityResultContracts;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.annotation.RequiresApi;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.appcompat.widget.AppCompatButton;
 
@@ -33,6 +35,8 @@ import com.google.android.material.timepicker.MaterialTimePicker;
 import com.google.android.material.timepicker.TimeFormat;
 
 import java.text.ParseException;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
 import java.util.Objects;
 
 public class CreateSign extends AppCompatActivity {
@@ -109,7 +113,7 @@ public class CreateSign extends AppCompatActivity {
 
         Long curTimeStamp = System.currentTimeMillis();
 
-        String currTime = CommonUtils.stampToDate(String.valueOf(curTimeStamp), "yyyy-MM-dd-hh-mm-ss");
+        String currTime = CommonUtils.stampToDate(String.valueOf(curTimeStamp), "yyyy-MM-dd-HH-mm-ss");
         String[] timeStrs = currTime.split("-");
         currYear = Integer.parseInt(timeStrs[0]);
         currMonth = Integer.parseInt(timeStrs[1]);
@@ -119,7 +123,7 @@ public class CreateSign extends AppCompatActivity {
         currSecond = Integer.parseInt(timeStrs[5]);
 
         startTimePicker = new MaterialTimePicker.Builder()
-                .setTimeFormat(TimeFormat.CLOCK_12H)
+                .setTimeFormat(TimeFormat.CLOCK_24H)
                 .setHour(currHour)
                 .setMinute(currMin)
                 .setTitleText("开始时间选择")
@@ -127,7 +131,7 @@ public class CreateSign extends AppCompatActivity {
                 .setNegativeButtonText("取消")
                 .build();
         endTimePicker = new MaterialTimePicker.Builder()
-                .setTimeFormat(TimeFormat.CLOCK_12H)
+                .setTimeFormat(TimeFormat.CLOCK_24H)
                 .setHour(currHour)
                 .setMinute(currMin)
                 .setTitleText("结束时间选择")
@@ -190,7 +194,7 @@ public class CreateSign extends AppCompatActivity {
                     startHour + ":" +
                     startMin + ":" + "00";
             try {
-                startTimeStamp = Long.parseLong(CommonUtils.dateToStamp(startTime, "yyyy-MM-dd hh:mm:ss"));
+                startTimeStamp = Long.parseLong(CommonUtils.dateToStamp(startTime, "yyyy-MM-dd HH:mm:ss"));
             } catch (ParseException e) {
                 e.printStackTrace();
             }
@@ -208,7 +212,7 @@ public class CreateSign extends AppCompatActivity {
                         endHour + ":" +
                         endMin + ":" + "00";
                 try {
-                    endTimeStamp = Long.parseLong(CommonUtils.dateToStamp(endTime, "yyyy-MM-dd hh:mm:ss"));
+                    endTimeStamp = Long.parseLong(CommonUtils.dateToStamp(endTime, "yyyy-MM-dd HH:mm:ss"));
                 } catch (ParseException e) {
                     e.printStackTrace();
                 }
diff --git a/app/src/main/java/com/example/stlink/utils/CommonUtils.java b/app/src/main/java/com/example/stlink/utils/CommonUtils.java
index be9ed0a..62d70f0 100644
--- a/app/src/main/java/com/example/stlink/utils/CommonUtils.java
+++ b/app/src/main/java/com/example/stlink/utils/CommonUtils.java
@@ -257,7 +257,7 @@ public class CommonUtils {
         String res;
         @SuppressLint("SimpleDateFormat")
         SimpleDateFormat simpleDateFormat = new SimpleDateFormat(fprmat);
-        simpleDateFormat.setTimeZone(TimeZone.getTimeZone("GMT+8:00"));
+//        simpleDateFormat.setTimeZone(TimeZone.getTimeZone("GMT+8:00"));
         //如果它本来就是long类型的,则不用写这一步
         long lt = Long.parseLong(s);
         Date date = new Date(lt);