学习进度条

今日所花时间：一小时
今日代码量：100行
博客量：1篇
了解到的知识点： 学习APP开发
继续优化学习APP
1.完成学生用户能够查看自己发布的学习记录
在AndroidStudio加上API调用

@GET("/programmingRecord/list")
    Call<List<ProgrammingRecord>> getProgrammingRecords(
            @Header("Authorization") String token
    );

ViewRecordsActivity

package com.example.study0327;

import android.content.SharedPreferences;
import android.os.Bundle;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import com.example.study0327.api.ApiService;
import com.example.study0327.api.RetrofitClient;
import com.example.study0327.modules.ProgrammingRecord;

import java.util.List;

import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;

public class ViewRecordsActivity extends AppCompatActivity {
    private RecyclerView recyclerView;
    private ProgrammingRecordAdapter adapter;
    private String token;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_view_records);

        // 获取token
        SharedPreferences prefs = getSharedPreferences("user_prefs", MODE_PRIVATE);
        token = "Bearer " + prefs.getString("auth_token", "").trim();

        // 初始化RecyclerView
        recyclerView = findViewById(R.id.recyclerViewRecords);
        recyclerView.setLayoutManager(new LinearLayoutManager(this));
        adapter = new ProgrammingRecordAdapter();
        recyclerView.setAdapter(adapter);

        // 加载数据
        loadProgrammingRecords();
    }

    private void loadProgrammingRecords() {
        ApiService apiService = RetrofitClient.getClient().create(ApiService.class);
        Call<List<ProgrammingRecord>> call = apiService.getProgrammingRecords(token);

        call.enqueue(new Callback<List<ProgrammingRecord>>() {
            @Override
            public void onResponse(Call<List<ProgrammingRecord>> call, Response<List<ProgrammingRecord>> response) {
                if (response.isSuccessful() && response.body() != null) {
                    adapter.setRecords(response.body());
                } else {
                    Toast.makeText(ViewRecordsActivity.this, "获取记录失败: " + response.message(), Toast.LENGTH_SHORT).show();
                }
            }

            @Override
            public void onFailure(Call<List<ProgrammingRecord>> call, Throwable t) {
                Toast.makeText(ViewRecordsActivity.this, "网络错误: " + t.getMessage(), Toast.LENGTH_SHORT).show();
            }
        });
    }
}

activity_add_record.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="16dp"
    tools:context=".AddRecordActivity">

    <!-- 标题 -->
    <TextView
        android:id="@+id/tvTitle"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="24dp"
        android:text="添加编程记录"
        android:textSize="24sp"
        android:textStyle="bold"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <!-- PSP阶段 -->
    <TextView
        android:id="@+id/tvPspStage"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="24dp"
        android:text="PSP阶段:"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/tvTitle" />

    <EditText
        android:id="@+id/etPspStage"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:hint="输入PSP阶段"
        android:inputType="text"
        android:minHeight="48dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/tvPspStage" />

    <!-- 内容 -->
    <TextView
        android:id="@+id/tvContent"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="16dp"
        android:text="内容:"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/etPspStage" />

    <EditText
        android:id="@+id/etContent"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:hint="输入内容"
        android:inputType="textMultiLine"
        android:minLines="3"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/tvContent" />

    <!-- 耗时 -->
    <TextView
        android:id="@+id/tvTimeSpent"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="16dp"
        android:text="耗时(分钟):"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/etContent" />

    <EditText
        android:id="@+id/etTimeSpent"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:hint="输入耗时"
        android:inputType="number"
        android:minHeight="48dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/tvTimeSpent" />

    <!-- 按钮区域 -->
    <LinearLayout
        android:id="@+id/buttonContainer"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="24dp"
        android:orientation="horizontal"
        android:weightSum="2"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/etTimeSpent">

        <!-- 添加记录按钮 -->
        <Button
            android:id="@+id/btnAddRecord"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginEnd="8dp"
            android:layout_weight="1"
            android:text="添加记录" />

        <!-- 新增的查看记录按钮 -->
        <Button
            android:id="@+id/btnViewRecords"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:layout_weight="1"
            android:text="查看记录" />
    </LinearLayout>

</androidx.constraintlayout.widget.ConstraintLayout>

页面上添加查看记录的按钮，点击即可查看该已经登陆的用户的编程记录
2.学生用户能够查看自己添加的每日总结按钮，并且点击即可跳转到该条总结的博客
DailySummaryAdapter

package com.example.study0327;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

import com.example.study0327.modules.DailySummary;

import java.util.List;

public class DailySummaryAdapter extends RecyclerView.Adapter<DailySummaryAdapter.ViewHolder> {
    private List<DailySummary> summaries;

    public static class ViewHolder extends RecyclerView.ViewHolder {
        public TextView tvUsername, tvDate, tvBlogUrl;

        public ViewHolder(View itemView) {
            super(itemView);
            tvUsername = itemView.findViewById(R.id.tvUsername);
            tvDate = itemView.findViewById(R.id.tvDate);
            tvBlogUrl = itemView.findViewById(R.id.tvBlogUrl);
        }
    }

    public void setSummaries(List<DailySummary> summaries) {
        this.summaries = summaries;
        notifyDataSetChanged();
    }

    @NonNull
    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext())
                .inflate(R.layout.item_daily_summary, parent, false);
        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
        DailySummary summary = summaries.get(position);
        holder.tvUsername.setText(summary.getUsername());
        holder.tvDate.setText(summary.getSummaryDate());
        holder.tvBlogUrl.setText(summary.getBlogUrl());
    }

    @Override
    public int getItemCount() {
        return summaries == null ? 0 : summaries.size();
    }
}

AddSummaryActivity

package com.example.study0327;

import android.content.Intent;
import android.content.SharedPreferences;
import android.net.Uri;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;

import com.example.study0327.api.ApiService;
import com.example.study0327.api.RetrofitClient;
import com.example.study0327.modules.DailySummary;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.Locale;

import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;

public class AddSummaryActivity extends AppCompatActivity {
    private EditText etBlogUrl;
    private Button btnAddSummary;
    private LinearLayout summaryListLayout;
    private String studentId;
    private String authToken;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_add_summary);

        // 获取用户登录信息
        SharedPreferences prefs = getSharedPreferences("user_prefs", MODE_PRIVATE);
        studentId = prefs.getString("student_id", "");
        authToken = "Bearer " + prefs.getString("auth_token", "");

        if (studentId.isEmpty() || authToken.equals("Bearer ")) {
            Toast.makeText(this, "请先登录", Toast.LENGTH_SHORT).show();
            finish();
            return;
        }

        etBlogUrl = findViewById(R.id.etBlogUrl);
        btnAddSummary = findViewById(R.id.btnAddSummary);
        summaryListLayout = findViewById(R.id.summaryListLayout);

        // 获取当前日期
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd", Locale.getDefault());
        String currentDate = sdf.format(new Date());

        // 加载历史记录
        loadHistorySummaries();

        btnAddSummary.setOnClickListener(v -> {
            String blogUrl = etBlogUrl.getText().toString().trim();
            if (blogUrl.isEmpty()) {
                Toast.makeText(this, "请输入博客链接", Toast.LENGTH_SHORT).show();
                return;
            }

            // 检查URL格式，自动添加http://前缀
            if (!blogUrl.startsWith("http://") && !blogUrl.startsWith("https://")) {
                blogUrl = "http://" + blogUrl;
            }

            DailySummary summary = new DailySummary();
            summary.setUserId(Long.valueOf(studentId));
            summary.setSummaryDate(currentDate);
            summary.setBlogUrl(blogUrl);

            ApiService apiService = RetrofitClient.getClient().create(ApiService.class);
            Call<String> call = apiService.addDailySummary(authToken, summary);

            call.enqueue(new Callback<String>() {
                @Override
                public void onResponse(Call<String> call, Response<String> response) {
                    if (response.isSuccessful()) {
                        Toast.makeText(AddSummaryActivity.this, response.body(), Toast.LENGTH_SHORT).show();
                        loadHistorySummaries(); // 刷新历史记录
                        etBlogUrl.setText(""); // 清空输入框
                    } else {
                        Toast.makeText(AddSummaryActivity.this, "添加失败: " + response.message(), Toast.LENGTH_SHORT).show();
                    }
                }

                @Override
                public void onFailure(Call<String> call, Throwable t) {
                    Toast.makeText(AddSummaryActivity.this, "网络错误: " + t.getMessage(), Toast.LENGTH_SHORT).show();
                }
            });
        });
    }

    private void loadHistorySummaries() {
        ApiService apiService = RetrofitClient.getClient().create(ApiService.class);
        Call<List<DailySummary>> call = apiService.getDailySummaries(authToken);

        call.enqueue(new Callback<List<DailySummary>>() {
            @Override
            public void onResponse(Call<List<DailySummary>> call, Response<List<DailySummary>> response) {
                if (response.isSuccessful() && response.body() != null) {
                    displaySummaries(response.body());
                } else {
                    Toast.makeText(AddSummaryActivity.this, "获取历史记录失败", Toast.LENGTH_SHORT).show();
                }
            }

            @Override
            public void onFailure(Call<List<DailySummary>> call, Throwable t) {
                Toast.makeText(AddSummaryActivity.this, "网络错误: " + t.getMessage(), Toast.LENGTH_SHORT).show();
            }
        });
    }

    private void displaySummaries(List<DailySummary> summaries) {
        summaryListLayout.removeAllViews();

        if (summaries.isEmpty()) {
            TextView emptyView = new TextView(this);
            emptyView.setText("暂无历史记录");
            emptyView.setTextSize(16);
            emptyView.setPadding(0, 32, 0, 0);
            summaryListLayout.addView(emptyView);
            return;
        }

        LayoutInflater inflater = LayoutInflater.from(this);

        for (DailySummary summary : summaries) {
            View summaryView = inflater.inflate(R.layout.item_summary, summaryListLayout, false);

            TextView tvDate = summaryView.findViewById(R.id.tvDate);
            TextView tvBlogUrl = summaryView.findViewById(R.id.tvBlogUrl);

            tvDate.setText(summary.getSummaryDate());
            tvBlogUrl.setText(summary.getBlogUrl());

            // 为每个总结项添加点击事件
            summaryView.setOnClickListener(v -> {
                String url = summary.getBlogUrl();
                // 检查URL格式
                if (!url.startsWith("http://") && !url.startsWith("https://")) {
                    url = "http://" + url;
                }

                // 使用浏览器打开链接
                Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
                startActivity(browserIntent);
            });

            summaryListLayout.addView(summaryView);
        }
    }
}

activity_add_summary.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:padding="16dp"
    tools:context=".AddSummaryActivity">

    <TextView
        android:id="@+id/tvTitle"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="24dp"
        android:text="添加每日总结"
        android:textSize="20sp"
        android:textStyle="bold" />

    <EditText
        android:id="@+id/etBlogUrl"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="16dp"
        android:hint="请输入博客链接"
        android:inputType="textUri"
        android:minHeight="48dp" />

    <Button
        android:id="@+id/btnAddSummary"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="16dp"
        android:text="添加总结" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="24dp"
        android:text="我的历史总结"
        android:textSize="18sp"
        android:textStyle="bold" />

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="8dp">

        <LinearLayout
            android:id="@+id/summaryListLayout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical" />
    </ScrollView>
</LinearLayout>