perf(app): throttle upload progress callbacks to 256KB steps

Co-Authored-By: Claude Code <noreply@anthropic.com>
2026-09-28 14:10:29 +08:00
parent 203f62e7cb
commit 45dbde3719
3 changed files with 47 additions and 4 deletions
@@ -139,9 +139,15 @@ class DartHttpTransport implements Transport {
    final file = File(filePath);
    final length = await file.length();
    var sent = 0;
+    var lastReported = 0;
+    // 256KB 步长节流（与原生 UploadPutExecutor 一致）；末块必报 sent==length。
+    const progressStep = 256 * 1024;
    final progressStream = file.openRead().map((List<int> chunk) {
      sent += chunk.length;
-      onProgress?.call(sent, length);
+      if (sent - lastReported >= progressStep || sent == length) {
+        lastReported = sent;
+        onProgress?.call(sent, length);
+      }
      return chunk;
    });
    try {