🎉Release 1.3，长按新UI文字标题可修改背景图片(BETA)

app/src/main/java/com/haohanyh/linmengjia/nearlink/nlchat/fun/ChatCore/ChatFileUtils.java

@@ -0,0 +1,36 @@
+/* 受Haohanyh Computer Software Products Open Source LICENSE保护 https://github.com/Hny0305Lin/LICENSE/blob/main/LICENSE */
+package com.haohanyh.linmengjia.nearlink.nlchat.fun.ChatCore;
+
+import android.content.Context;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+
+public class ChatFileUtils {
+    private static final String FILE_NAME = "background_path.txt";
+
+    public static void saveBackgroundPath(Context context, String path) {
+        File file = new File(context.getFilesDir(), FILE_NAME);
+        try (FileWriter writer = new FileWriter(file)) {
+            writer.write(path);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public static String getBackgroundPath(Context context) {
+        File file = new File(context.getFilesDir(), FILE_NAME);
+        if (!file.exists()) {
+            return null;
+        }
+        try (BufferedReader reader = new BufferedReader(new FileReader(file))) {
+            return reader.readLine();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+}