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diff --git a/src/Logistics/app/src/main/AndroidManifest.xml b/src/Logistics/app/src/main/AndroidManifest.xml
index d870dab..ba12327 100644
--- a/src/Logistics/app/src/main/AndroidManifest.xml
+++ b/src/Logistics/app/src/main/AndroidManifest.xml
@@ -16,16 +16,16 @@
         android:supportsRtl="true"
         android:theme="@style/Theme.Logistics">
         <activity
-            android:name=".ui.HistoryActivity"
+            android:name=".ui.HistoryUI"
             android:exported="false" />
         <activity
-            android:name=".ui.SearchActivity"
+            android:name=".ui.SearchUI"
             android:exported="false" />
         <activity
             android:name=".ui.MenuActivity"
             android:exported="false" />
         <activity
-            android:name=".ui.LoginActivity"
+            android:name=".ui.LoginUI"
             android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
@@ -33,7 +33,7 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
-        <activity android:name=".ui.SignUpActivity" />
+        <activity android:name=".ui.SignUpUI" />
         <activity
             android:name="com.journeyapps.barcodescanner.CaptureActivity"
             android:screenOrientation="portrait"
diff --git a/src/Logistics/app/src/main/java/com/example/logistics/ui/FindActivity.java b/src/Logistics/app/src/main/java/com/example/logistics/ui/FindUI.java
similarity index 95%
rename from src/Logistics/app/src/main/java/com/example/logistics/ui/FindActivity.java
rename to src/Logistics/app/src/main/java/com/example/logistics/ui/FindUI.java
index b5386b4..0878eeb 100644
--- a/src/Logistics/app/src/main/java/com/example/logistics/ui/FindActivity.java
+++ b/src/Logistics/app/src/main/java/com/example/logistics/ui/FindUI.java
@@ -20,13 +20,13 @@ import androidx.fragment.app.Fragment;
 import com.example.logistics.R;
 import com.example.logistics.manager.goodManager;
 
-public class FindActivity extends Fragment implements View.OnClickListener{
+public class FindUI extends Fragment implements View.OnClickListener{
     private Context mContext;
     private Button mButton;
     private EditText mPickUpCode;
     private EditText mPhoneNum;
 
-    public FindActivity(){
+    public FindUI(){
 
     }
     @Nullable
diff --git a/src/Logistics/app/src/main/java/com/example/logistics/ui/HistoryActivity.java b/src/Logistics/app/src/main/java/com/example/logistics/ui/HistoryUI.java
similarity index 92%
rename from src/Logistics/app/src/main/java/com/example/logistics/ui/HistoryActivity.java
rename to src/Logistics/app/src/main/java/com/example/logistics/ui/HistoryUI.java
index 3a89a44..114308f 100644
--- a/src/Logistics/app/src/main/java/com/example/logistics/ui/HistoryActivity.java
+++ b/src/Logistics/app/src/main/java/com/example/logistics/ui/HistoryUI.java
@@ -25,7 +25,7 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
-public class HistoryActivity extends Activity implements OnItemClickListener, OnScrollListener, View.OnClickListener  {
+public class HistoryUI extends Activity implements OnItemClickListener, OnScrollListener, View.OnClickListener  {
 
     private String TAG = "HistoryActivity";
     private ListView lv_history;
@@ -111,7 +111,7 @@ public class HistoryActivity extends Activity implements OnItemClickListener, On
         @Override
         public void handleMessage(Message msg){
             if(msg.what == 1){
-                simp_adapter=new SimpleAdapter(HistoryActivity.this, dataList, R.layout.item, new String[]{"pickupcode","time"}, new int[]{R.id.np_id,R.id.np_time});
+                simp_adapter=new SimpleAdapter(HistoryUI.this, dataList, R.layout.item, new String[]{"pickupcode","time"}, new int[]{R.id.np_id,R.id.np_time});
                 lv_history.setAdapter(simp_adapter);
             }
         }
diff --git a/src/Logistics/app/src/main/java/com/example/logistics/ui/LoginActivity.java b/src/Logistics/app/src/main/java/com/example/logistics/ui/LoginUI.java
similarity index 89%
rename from src/Logistics/app/src/main/java/com/example/logistics/ui/LoginActivity.java
rename to src/Logistics/app/src/main/java/com/example/logistics/ui/LoginUI.java
index 7b4ba8d..4d626fe 100644
--- a/src/Logistics/app/src/main/java/com/example/logistics/ui/LoginActivity.java
+++ b/src/Logistics/app/src/main/java/com/example/logistics/ui/LoginUI.java
@@ -1,15 +1,12 @@
 package com.example.logistics.ui;
 
 import com.example.logistics.R;
-import com.example.logistics.manager.goodManager;
-import com.example.logistics.manager.operationManager;
 import com.example.logistics.manager.userManager;
 import com.example.logistics.entity.User;
 
 import android.annotation.SuppressLint;
 import android.app.Activity;
 import android.app.AlertDialog;
-import android.content.DialogInterface;
 import android.content.Intent;
 import android.os.Bundle;
 import android.os.Handler;
@@ -20,11 +17,8 @@ import android.widget.Button;
 import android.widget.EditText;
 import android.widget.Toast;
 
-import org.json.JSONException;
-import org.json.JSONObject;
 
-
-public class LoginActivity extends Activity {
+public class LoginUI extends Activity {
 
     private int islogin = 0;
     private Button loginButton;
@@ -50,9 +44,9 @@ public class LoginActivity extends Activity {
         phonenumButton = (Button) this.findViewById(R.id.phonenum);
 
 
-        AlertDialog.Builder builder = new AlertDialog.Builder(LoginActivity.this);
+        AlertDialog.Builder builder = new AlertDialog.Builder(LoginUI.this);
 
-        View view2 = View.inflate(LoginActivity.this, R.layout.forget, null);
+        View view2 = View.inflate(LoginUI.this, R.layout.forget, null);
 
         builder.setTitle("取件").setView(view2);
 
@@ -76,7 +70,7 @@ public class LoginActivity extends Activity {
                 new View.OnClickListener() {
                     @Override
                     public void onClick(View v) {
-                        Intent intent = new Intent(LoginActivity.this, SignUpActivity.class);
+                        Intent intent = new Intent(LoginUI.this, SignUpUI.class);
                         Log.d(TAG, "signup");
                         startActivity(intent);
                     }
@@ -156,7 +150,7 @@ public class LoginActivity extends Activity {
                 hand1.sendEmptyMessage(msg);
                 if(msg == 1){
                     User owner = userManager.findUser(userName.getText().toString().trim());
-                    Intent intent = new Intent(LoginActivity.this, MenuActivity.class);
+                    Intent intent = new Intent(LoginUI.this, MenuActivity.class);
                     if(flag == 1){
                         intent.putExtra("user", userName.getText().toString().trim());
                     }else{
@@ -190,9 +184,9 @@ public class LoginActivity extends Activity {
         @Override
         public void handleMessage(Message msg) {
             if(msg.what == 0){
-                Toast.makeText(LoginActivity.this, "修改失败", Toast.LENGTH_SHORT).show();
+                Toast.makeText(LoginUI.this, "修改失败", Toast.LENGTH_SHORT).show();
             }else if(msg.what == 1) {
-                Toast.makeText(LoginActivity.this, "修改成功", Toast.LENGTH_SHORT).show();
+                Toast.makeText(LoginUI.this, "修改成功", Toast.LENGTH_SHORT).show();
             }
         }
     };
diff --git a/src/Logistics/app/src/main/java/com/example/logistics/ui/MenuActivity.java b/src/Logistics/app/src/main/java/com/example/logistics/ui/MenuActivity.java
index ae76baa..8645404 100644
--- a/src/Logistics/app/src/main/java/com/example/logistics/ui/MenuActivity.java
+++ b/src/Logistics/app/src/main/java/com/example/logistics/ui/MenuActivity.java
@@ -93,7 +93,7 @@ public class MenuActivity extends AppCompatActivity implements View.OnClickListe
                 mTextView1.setSelected(true);
                 mTextNum1.setVisibility(View.INVISIBLE);
                 if (mFrag1 == null) {
-                    mFrag1 = new FindActivity();
+                    mFrag1 = new FindUI();
 
 
                     transaction.add(R.id.fragment_container, mFrag1);
@@ -106,7 +106,7 @@ public class MenuActivity extends AppCompatActivity implements View.OnClickListe
                 mTextView2.setSelected(true);
                 mTextNum2.setVisibility(View.INVISIBLE);
                 if (mFrag2 == null) {
-                    mFrag2 = new PickUpActivity();
+                    mFrag2 = new PickUpUI();
                     Bundle bundle = new Bundle();
                     bundle.putString("user", owner);
                     mFrag2.setArguments(bundle);
@@ -120,7 +120,7 @@ public class MenuActivity extends AppCompatActivity implements View.OnClickListe
                 mTextView3.setSelected(true);
                 mTextNum3.setVisibility(View.INVISIBLE);
                 if (mFrag3 == null) {
-                    mFrag3 = new SetActivity();
+                    mFrag3 = new SetUI();
                     Bundle bundle = new Bundle();
                     bundle.putString("user", owner);
                     mFrag3.setArguments(bundle);
diff --git a/src/Logistics/app/src/main/java/com/example/logistics/ui/PickUpActivity.java b/src/Logistics/app/src/main/java/com/example/logistics/ui/PickUpUI.java
similarity index 98%
rename from src/Logistics/app/src/main/java/com/example/logistics/ui/PickUpActivity.java
rename to src/Logistics/app/src/main/java/com/example/logistics/ui/PickUpUI.java
index f0b8fea..0ffd4f1 100644
--- a/src/Logistics/app/src/main/java/com/example/logistics/ui/PickUpActivity.java
+++ b/src/Logistics/app/src/main/java/com/example/logistics/ui/PickUpUI.java
@@ -38,7 +38,7 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.net.URI;
 
-public class PickUpActivity extends Fragment implements View.OnClickListener{
+public class PickUpUI extends Fragment implements View.OnClickListener{
 
     private Button mButton;
     private Context mContext;
@@ -58,7 +58,7 @@ public class PickUpActivity extends Fragment implements View.OnClickListener{
 
     int flag = 0; //flag=0:chushi
 
-    public PickUpActivity(){
+    public PickUpUI(){
 
     }
     @Nullable
diff --git a/src/Logistics/app/src/main/java/com/example/logistics/ui/SearchActivity.java b/src/Logistics/app/src/main/java/com/example/logistics/ui/SearchUI.java
similarity index 93%
rename from src/Logistics/app/src/main/java/com/example/logistics/ui/SearchActivity.java
rename to src/Logistics/app/src/main/java/com/example/logistics/ui/SearchUI.java
index c824188..b5d3499 100644
--- a/src/Logistics/app/src/main/java/com/example/logistics/ui/SearchActivity.java
+++ b/src/Logistics/app/src/main/java/com/example/logistics/ui/SearchUI.java
@@ -25,7 +25,7 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
-public class SearchActivity extends Activity implements OnItemClickListener, OnScrollListener, View.OnClickListener {
+public class SearchUI extends Activity implements OnItemClickListener, OnScrollListener, View.OnClickListener {
 
     private String TAG = "NoPickActivity";
     private ListView lv_nopick;
@@ -113,7 +113,7 @@ public class SearchActivity extends Activity implements OnItemClickListener, OnS
         @Override
         public void handleMessage(Message msg){
             if(msg.what == 1){
-                simp_adapter=new SimpleAdapter(SearchActivity.this, dataList, R.layout.item, new String[]{"id","time"}, new int[]{R.id.np_id,R.id.np_time});
+                simp_adapter=new SimpleAdapter(SearchUI.this, dataList, R.layout.item, new String[]{"id","time"}, new int[]{R.id.np_id,R.id.np_time});
                 lv_nopick.setAdapter(simp_adapter);
             }
         }
diff --git a/src/Logistics/app/src/main/java/com/example/logistics/ui/SetActivity.java b/src/Logistics/app/src/main/java/com/example/logistics/ui/SetUI.java
similarity index 85%
rename from src/Logistics/app/src/main/java/com/example/logistics/ui/SetActivity.java
rename to src/Logistics/app/src/main/java/com/example/logistics/ui/SetUI.java
index 7aa06a4..b01353a 100644
--- a/src/Logistics/app/src/main/java/com/example/logistics/ui/SetActivity.java
+++ b/src/Logistics/app/src/main/java/com/example/logistics/ui/SetUI.java
@@ -15,14 +15,14 @@ import androidx.annotation.Nullable;
 
 import com.example.logistics.R;
 
-public class SetActivity extends Fragment implements View.OnClickListener{
+public class SetUI extends Fragment implements View.OnClickListener{
     private LinearLayout ll_waiting;
     private LinearLayout ll_history;
     private LinearLayout ll_exit;
     private Context mContext;
     private String user;
 
-    public SetActivity(){
+    public SetUI(){
 
     }
     @Nullable
@@ -52,19 +52,19 @@ public class SetActivity extends Fragment implements View.OnClickListener{
         Intent intent;
         switch(view.getId()){
             case R.id.waiting:
-                intent = new Intent(mContext, SearchActivity.class);
+                intent = new Intent(mContext, SearchUI.class);
                 intent.putExtra("user", user);
                 startActivity(intent);
                 break;
             case R.id.history:
 
-                intent = new Intent(mContext, HistoryActivity.class);
+                intent = new Intent(mContext, HistoryUI.class);
                 intent.putExtra("user", user);
                 startActivity(intent);
                 break;
             case R.id.exit:
                 Toast.makeText(mContext, "exit", Toast.LENGTH_SHORT).show();
-                intent = new Intent(mContext, LoginActivity.class);
+                intent = new Intent(mContext, LoginUI.class);
                 startActivity(intent);
                 getActivity().finish();
                 break;
diff --git a/src/Logistics/app/src/main/java/com/example/logistics/ui/SignUpActivity.java b/src/Logistics/app/src/main/java/com/example/logistics/ui/SignUpUI.java
similarity index 82%
rename from src/Logistics/app/src/main/java/com/example/logistics/ui/SignUpActivity.java
rename to src/Logistics/app/src/main/java/com/example/logistics/ui/SignUpUI.java
index 55ef479..e7fdfe2 100644
--- a/src/Logistics/app/src/main/java/com/example/logistics/ui/SignUpActivity.java
+++ b/src/Logistics/app/src/main/java/com/example/logistics/ui/SignUpUI.java
@@ -15,7 +15,7 @@ import com.example.logistics.R;
 import com.example.logistics.manager.userManager;
 import com.example.logistics.entity.User;
 
-public class SignUpActivity extends Activity {
+public class SignUpUI extends Activity {
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -38,7 +38,7 @@ public class SignUpActivity extends Activity {
                     @Override
                     public void onClick(View v) {
                         // 跳转到登录界面
-                        Intent intent = new Intent(SignUpActivity.this, LoginActivity.class);
+                        Intent intent = new Intent(SignUpUI.this, LoginUI.class);
                         startActivity(intent);
                     }
                 }
@@ -58,17 +58,17 @@ public class SignUpActivity extends Activity {
         String strPhoneNumber = phone.getText().toString().trim();
 
         if (strUserName.length() > 10) {
-            Toast.makeText(SignUpActivity.this, "用户名长度必须小于10！", Toast.LENGTH_SHORT).show();
+            Toast.makeText(SignUpUI.this, "用户名长度必须小于10！", Toast.LENGTH_SHORT).show();
         } else if (strUserName.length() == 0) {
-            Toast.makeText(SignUpActivity.this, "用户名不能为空！", Toast.LENGTH_SHORT).show();
+            Toast.makeText(SignUpUI.this, "用户名不能为空！", Toast.LENGTH_SHORT).show();
         } else if (strPassWord.length() > 16) {
-            Toast.makeText(SignUpActivity.this, "密码长度必须小于16！", Toast.LENGTH_SHORT).show();
+            Toast.makeText(SignUpUI.this, "密码长度必须小于16！", Toast.LENGTH_SHORT).show();
         } else if (strPassWord.length() == 0) {
-            Toast.makeText(SignUpActivity.this, "密码不能为空！", Toast.LENGTH_SHORT).show();
+            Toast.makeText(SignUpUI.this, "密码不能为空！", Toast.LENGTH_SHORT).show();
         } else if (!strPassWord.equals(strPassWordAgain)) {
-            Toast.makeText(SignUpActivity.this, "两次密码输入不一致！", Toast.LENGTH_SHORT).show();
+            Toast.makeText(SignUpUI.this, "两次密码输入不一致！", Toast.LENGTH_SHORT).show();
         } else {
-            Toast.makeText(SignUpActivity.this, "注册成功！", Toast.LENGTH_SHORT).show();
+            Toast.makeText(SignUpUI.this, "注册成功！", Toast.LENGTH_SHORT).show();
 
             User user = new User();
             user.setUserName(strUserName);
@@ -106,7 +106,7 @@ public class SignUpActivity extends Activity {
                 Toast.makeText(getApplicationContext(), "该账号已存在，请换一个注册", Toast.LENGTH_SHORT).show();
             }else if(msg.what == 2){
                 Toast.makeText(getApplicationContext(), "注册成功", Toast.LENGTH_SHORT).show();
-                Intent intent = new Intent(SignUpActivity.this, LoginActivity.class);
+                Intent intent = new Intent(SignUpUI.this, LoginUI.class);
                 startActivity(intent);
             }
         }
diff --git a/src/Logistics/app/src/main/res/layout/activity_main.xml b/src/Logistics/app/src/main/res/layout/activity_main.xml
index d7bfeb4..64d5903 100644
--- a/src/Logistics/app/src/main/res/layout/activity_main.xml
+++ b/src/Logistics/app/src/main/res/layout/activity_main.xml
@@ -3,7 +3,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context="com.example.logistics.ui.LoginActivity">
+    tools:context="com.example.logistics.ui.LoginUI">
     <!--使用线性布局-->
     <LinearLayout
         android:id="@+id/linearLayout2"
diff --git a/src/Logistics/app/src/main/res/layout/activity_sign_up.xml b/src/Logistics/app/src/main/res/layout/activity_sign_up.xml
index 9d9a60e..59b09a4 100644
--- a/src/Logistics/app/src/main/res/layout/activity_sign_up.xml
+++ b/src/Logistics/app/src/main/res/layout/activity_sign_up.xml
@@ -3,7 +3,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context="com.example.logistics.ui.SignUpActivity">
+    tools:context="com.example.logistics.ui.SignUpUI">
 
     <!--使用线性布局-->
     <LinearLayout