.

build.gradle.kts

@@ -50,6 +50,12 @@ dependencies {
     implementation ("io.github.lucksiege:ucrop:v3.11.2")
     implementation ("io.github.lucksiege:camerax:v3.11.2")
     implementation ("com.github.bumptech.glide:glide:4.15.1")
+
+    implementation ("com.squareup.okhttp3:okhttp:4.11.0")
+    implementation ("com.google.code.gson:gson:2.10.1")
+    implementation ("com.squareup.okhttp3:logging-interceptor:4.9.3")
+    implementation ("com.squareup.retrofit2:retrofit:2.9.0")
+    implementation ("com.squareup.retrofit2:converter-gson:2.9.0")
     //权限
 
 

src/main/java/com/hnucm/c202201020328/ApiService.java

@@ -0,0 +1,8 @@
+package com.hnucm.c202201020328;
+import retrofit2.Call;
+import retrofit2.http.GET;
+import java.util.List;
+public interface ApiService {
+    @GET("test")  // 替换为你的 API 路径
+    Call<List<System_messages>> getSystemMessages();
+}

src/main/java/com/hnucm/c202201020328/System_messages.java

@@ -1,5 +1,13 @@
 package com.hnucm.c202201020328;
 
 public class System_messages {
-    public String title;
+    String title;
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
 }

src/main/java/com/hnucm/c202201020328/System_messagesActivity.java

@@ -1,6 +1,6 @@
 package com.hnucm.c202201020328;
-
 import android.os.Bundle;
+import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -16,34 +16,65 @@ import com.gyf.immersionbar.ImmersionBar;
 import java.util.ArrayList;
 import java.util.List;
 
+import retrofit2.Call;
+import retrofit2.Callback;
+import retrofit2.Response;
+import retrofit2.Retrofit;
+import retrofit2.converter.gson.GsonConverterFactory;
+
 public class System_messagesActivity extends AppCompatActivity {
     RecyclerView recyclerView1;
     MyAdapter myAdapter;
-    List<System_messages> system_messages=new ArrayList<>();
+    List<System_messages> system_messages = new ArrayList<>();
+    ApiService apiService;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_system_messages);
         ImmersionBar.with(this).init();
-        recyclerView1=findViewById(R.id.recyclerview1);
-        for (int i=1;i<=25;i++){
-            System_messages systemMessages=new System_messages();
-            String  c=String.valueOf(i);
-            systemMessages.title=c;
-            system_messages.add(systemMessages);
-        }
-        myAdapter=new MyAdapter();
-        recyclerView1.setAdapter(myAdapter);
+        recyclerView1 = findViewById(R.id.recyclerview1);
         recyclerView1.setLayoutManager(new LinearLayoutManager(this));
-    }
-    public class MyAdapter extends RecyclerView.Adapter<MyViewHoler>{
 
+        // 初始化 Retrofit 和 ApiService
+        Retrofit retrofit = new Retrofit.Builder()
+                .baseUrl("https://dev.usemock.com/673ff29f94b857f277d90f07/") // 替换为你的 API 基础 URL
+                .addConverterFactory(GsonConverterFactory.create())
+                .build();
+        apiService = retrofit.create(ApiService.class);
+
+        // 发起网络请求
+        fetchSystemMessages();
+    }
+    private void fetchSystemMessages() {
+        Call<List<System_messages>> call = apiService.getSystemMessages();
+        call.enqueue(new Callback<List<System_messages>>() {
+            @Override
+            public void onResponse(Call<List<System_messages>> call, Response<List<System_messages>> response) {
+                if (response.isSuccessful() && response.body() != null) {
+                    Log.i("test", "Response: " + response.body().toString());
+                    system_messages.clear();
+                    system_messages.addAll(response.body());
+                    myAdapter = new MyAdapter();
+                    recyclerView1.setAdapter(myAdapter);
+                } else {
+                    Log.e("test", "Response failed: " + response.message());
+                }
+            }
+
+
+            @Override
+            public void onFailure(Call<List<System_messages>> call, Throwable t) {
+                Log.e("test", "Request failed: " + t.getMessage(), t);
+            }
+        });
+    }
+    public class MyAdapter extends RecyclerView.Adapter<MyViewHoler> {
         @NonNull
         @Override
         public MyViewHoler onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
-            View view= LayoutInflater.from(System_messagesActivity.this).inflate(R.layout.item_system_messages,parent,false);
-            MyViewHoler myViewHoler=new MyViewHoler(view);
-            return myViewHoler;
+            View view = LayoutInflater.from(System_messagesActivity.this).inflate(R.layout.item_system_messages, parent, false);
+            return new MyViewHoler(view);
         }
 
         @Override
@@ -56,11 +87,13 @@ public class System_messagesActivity extends AppCompatActivity {
             return system_messages.size();
         }
     }
+    // ViewHolder
     public class MyViewHoler extends RecyclerView.ViewHolder {
         TextView text;
+
         public MyViewHoler(@NonNull View itemView) {
             super(itemView);
-            text=itemView.findViewById(R.id.textView115);
+            text = itemView.findViewById(R.id.textView115);
         }
     }
 }

src/main/res/layout/activity_tool.xml

@@ -672,7 +672,7 @@
                     android:id="@+id/txt_content"
                     android:layout_width="match_parent"
                     android:layout_height="140dp"
-                    android:layout_marginTop="50dp"
+                    android:layout_marginTop="84dp"
                     android:ellipsize="end"
                     android:paddingLeft="16dp"
                     android:paddingRight="16dp"
@@ -681,6 +681,7 @@
                     android:textColor="#BBBBBB"
                     android:textSize="18dp"
                     app:layout_constraintEnd_toEndOf="parent"
+                    app:layout_constraintHorizontal_bias="0.0"
                     app:layout_constraintStart_toStartOf="parent"
                     app:layout_constraintTop_toTopOf="parent" />