一次commit尝试

.idea/deploymentTargetDropDown.xml

@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="deploymentTargetDropDown">
-    <runningDeviceTargetSelectedWithDropDown>
-      <Target>
-        <type value="RUNNING_DEVICE_TARGET" />
-        <deviceKey>
-          <Key>
-            <type value="SERIAL_NUMBER" />
-            <value value="emulator-5554" />
-          </Key>
-        </deviceKey>
-      </Target>
-    </runningDeviceTargetSelectedWithDropDown>
-    <timeTargetWasSelectedWithDropDown value="2022-06-02T07:36:08.505054300Z" />
-  </component>
-</project>

.idea/misc.xml

@@ -113,7 +113,7 @@
         <entry key="..\:/CourseDesign/androidDevelopment/code/final/S.T.Link/app/src/main/res/layout/fragment_stu_my_info.xml" value="0.264" />
         <entry key="..\:/CourseDesign/androidDevelopment/code/final/S.T.Link/app/src/main/res/layout/fragment_tea_class_list.xml" value="0.25364583333333335" />
         <entry key="..\:/CourseDesign/androidDevelopment/code/final/S.T.Link/app/src/main/res/layout/fragment_tea_class_msg.xml" value="0.25364583333333335" />
-        <entry key="..\:/CourseDesign/androidDevelopment/code/final/S.T.Link/app/src/main/res/layout/fragment_tea_course_list.xml" value="0.536" />
+        <entry key="..\:/CourseDesign/androidDevelopment/code/final/S.T.Link/app/src/main/res/layout/fragment_tea_course_list.xml" value="0.2" />
         <entry key="..\:/CourseDesign/androidDevelopment/code/final/S.T.Link/app/src/main/res/layout/fragment_tea_home.xml" value="0.25364583333333335" />
         <entry key="..\:/CourseDesign/androidDevelopment/code/final/S.T.Link/app/src/main/res/layout/fragment_tea_my_info.xml" value="0.25364583333333335" />
         <entry key="..\:/CourseDesign/androidDevelopment/code/final/S.T.Link/app/src/main/res/layout/fragment_user_my_info.xml" value="0.25364583333333335" />

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

app/src/main/java/com/example/stlink/activitys/MainActivity.java

@@ -18,6 +18,7 @@ import com.example.stlink.fragments.TeaHomeFragment;
 import com.example.stlink.fragments.UserInfoFragment;
 import com.example.stlink.model.constants.ModelFieldConstants;
 import com.example.stlink.utils.activityUtil.MainActivityUtil;
+import com.google.android.material.badge.BadgeDrawable;
 import com.google.android.material.bottomnavigation.BottomNavigationView;
 
 import java.util.ArrayList;
@@ -30,6 +31,8 @@ public class MainActivity extends AppCompatActivity {
     private Integer roleId;
     private Bundle bundle;
 
+    private BadgeDrawable badge;
+
     @RequiresApi(api = Build.VERSION_CODES.O)
     @Override
     protected void onCreate(@Nullable Bundle savedInstanceState) {
@@ -57,10 +60,18 @@ public class MainActivity extends AppCompatActivity {
             bottomNavigationView.getMenu().getItem(1).setTitle("班级消息");
         }
 
+        badge = bottomNavigationView.getOrCreateBadge(1);
+//        orCreateBadge.setVisible(false);
+        badge.setNumber(0);
+
     }
 
     /**
      * 绑定页面
+     *
+     * flutter
+     * uniapp
+     * kotlin
      */
     private void initPager(){
         List<Fragment> list = new ArrayList<>();
@@ -71,7 +82,7 @@ public class MainActivity extends AppCompatActivity {
             list.add(teaCourseListFragment);
         }else{
             StuHomeFragment stuHomeFragment = StuHomeFragment.newInstance("主页");
-            StuClassListFragment stuClassListFragment = StuClassListFragment.newInstance("班级消息", MainActivity.this);
+            StuClassListFragment stuClassListFragment = StuClassListFragment.newInstance("班级消息", MainActivity.this, badge);
             list.add(stuHomeFragment);
             list.add(stuClassListFragment);
         }

app/src/main/java/com/example/stlink/fragments/StuClassListFragment.java

@@ -13,6 +13,7 @@ import android.widget.Toast;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.annotation.Size;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.fragment.app.Fragment;
 import androidx.recyclerview.widget.LinearLayoutManager;
@@ -30,6 +31,8 @@ import com.example.stlink.model.domain.CourseSign;
 import com.example.stlink.model.response.BaseResponse;
 import com.example.stlink.model.response.data.CourseData;
 import com.example.stlink.utils.httpUtils.GetUrlParamHttpUtils;
+import com.google.android.material.badge.BadgeDrawable;
+import com.google.android.material.bottomnavigation.BottomNavigationView;
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
 import com.google.gson.internal.LinkedTreeMap;
@@ -47,6 +50,8 @@ public class StuClassListFragment extends Fragment {
     private static AppCompatActivity mAppCompatActivity;
     private static SwipeRefreshLayout srlMyRefresh;
 
+    private static BadgeDrawable mBadge;
+
     private int currentPage = 1;
     private int size = 10;
 
@@ -67,8 +72,9 @@ public class StuClassListFragment extends Fragment {
 
     }
 
-    public static StuClassListFragment newInstance(String str, AppCompatActivity appCompatActivity){
+    public static StuClassListFragment newInstance(String str, AppCompatActivity appCompatActivity, BadgeDrawable orCreateBadge){
         mAppCompatActivity = appCompatActivity;
+        mBadge = orCreateBadge;
         StuClassListFragment frag = new StuClassListFragment();
         return frag;
     }
@@ -219,10 +225,14 @@ public class StuClassListFragment extends Fragment {
                                 for(CourseSign courseSign : courseData.getRecords()){
                                     courseSign.setCourseId(courseId);
                                 }
-
+                                int total = courseData.getTotal();
+                                //设置角标
+                                mBadge.setVisible(true);
+                                mBadge.setNumber(total);
+                                System.out.println("StuClassListFragment:size = " + mBadge.getNumber() + ".....................");
+                                System.out.println(mBadge.isVisible());
                                 if(courseData.getRecords().size() != 0){
                                     courseSigns.addAll(courseData.getRecords());
-                                    System.out.println("Here......................");
                                     Message message = new Message();
                                     message.arg1 = 200;
                                     handler.sendMessage(message);