增加天气显示

2026-03-06 09:50:58 +08:00
parent 962a022bf9
commit 0f2adad060
30 changed files with 5567 additions and 64 deletions
--- a/app/src/main/java/com/ttstd/dialer/manager/CsvDeserializer.java
+++ b/app/src/main/java/com/ttstd/dialer/manager/CsvDeserializer.java
@@ -0,0 +1,102 @@
+package com.ttstd.dialer.manager;
+
+import android.content.Context;
+import android.util.Log;
+
+import com.opencsv.bean.CsvToBean;
+import com.opencsv.bean.CsvToBeanBuilder;
+import com.opencsv.bean.HeaderColumnNameMappingStrategy;
+import com.ttstd.dialer.bean.CityInfo;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.Reader;
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.List;
+
+public class CsvDeserializer {
+    private static final String TAG = "CsvDeserializer";
+
+    /**
+     * 从assets文件夹中的CSV文件反序列化为对象列表
+     *
+     * @param context  上下文
+     * @param fileName assets中的CSV文件名
+     * @return 对象列表
+     */
+    public static List<CityInfo> deserializeFromAssets(Context context, String fileName) {
+        InputStream inputStream = null;
+        Reader reader = null;
+        try {
+            long time = System.currentTimeMillis();
+            // 从assets获取CSV文件输入流
+            inputStream = context.getAssets().open(fileName);
+            reader = new InputStreamReader(inputStream, StandardCharsets.UTF_8);
+
+            // 创建映射策略，使用CSV头部列名映射到对象字段
+            HeaderColumnNameMappingStrategy<CityInfo> strategy = new HeaderColumnNameMappingStrategy<>();
+            strategy.setType(CityInfo.class);
+
+            // 创建CsvToBean并进行转换
+            CsvToBean<CityInfo> csvToBean = new CsvToBeanBuilder<CityInfo>(reader)
+                    .withMappingStrategy(strategy)
+                    .withIgnoreLeadingWhiteSpace(true)
+                    .withIgnoreEmptyLine(true) // 忽略空行
+                    .withThrowExceptions(false) // 不抛出异常，便于调试
+                    .build();
+            Log.e(TAG, "deserializeFromAssets: finish " + (System.currentTimeMillis() - time) + "ms");
+            // 转换并返回结果列表
+            return csvToBean.parse();
+        } catch (IOException e) {
+            Log.e(TAG, "Error reading CSV file: " + e.getMessage());
+            e.printStackTrace();
+        } catch (Exception e) {
+            Log.e(TAG, "Error during CSV deserialization: " + e.getMessage());
+            e.printStackTrace();
+        } finally {
+            // 确保关闭流，避免资源泄漏
+            try {
+                if (reader != null) {
+                    reader.close();
+                }
+                if (inputStream != null) {
+                    inputStream.close();
+                }
+            } catch (IOException e) {
+                Log.w(TAG, "Failed to close stream: " + e.getMessage());
+            }
+        }
+        return new ArrayList<>();
+    }
+
+
+    /**
+     * 从输入流反序列化为对象列表
+     *
+     * @param inputStream CSV文件输入流
+     * @return 对象列表
+     */
+    public static List<CityInfo> deserializeFromStream(InputStream inputStream) {
+        try {
+            Reader reader = new InputStreamReader(inputStream, StandardCharsets.UTF_8);
+
+            HeaderColumnNameMappingStrategy<CityInfo> strategy = new HeaderColumnNameMappingStrategy<>();
+            strategy.setType(CityInfo.class);
+
+            CsvToBean<CityInfo> csvToBean = new CsvToBeanBuilder<CityInfo>(reader)
+                    .withMappingStrategy(strategy)
+                    .withIgnoreLeadingWhiteSpace(true)
+                    .build();
+
+            return csvToBean.parse();
+
+        } catch (Exception e) {
+            Log.e(TAG, "Error during CSV deserialization: " + e.getMessage());
+            e.printStackTrace();
+        }
+
+        return null;
+    }
+}