From f8adef2a9e6b08f9f2cc7443ed28c84cd0338903 Mon Sep 17 00:00:00 2001
From: frank wang <425294756@qq.com>
Date: Thu, 30 Oct 2025 16:58:16 +0800
Subject: [PATCH] =?UTF-8?q?=E6=96=87=E4=BB=B6=E4=B8=8A=E4=BC=A0=E7=9A=84?=
 =?UTF-8?q?=E9=80=BB=E8=BE=91?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/com/pxkj/jwzs/FirstActivity.java     | 98 +++++++++----------
 1 file changed, 46 insertions(+), 52 deletions(-)

diff --git a/app/src/main/java/com/pxkj/jwzs/FirstActivity.java b/app/src/main/java/com/pxkj/jwzs/FirstActivity.java
index 391c03d..cc87306 100644
--- a/app/src/main/java/com/pxkj/jwzs/FirstActivity.java
+++ b/app/src/main/java/com/pxkj/jwzs/FirstActivity.java
@@ -262,50 +262,52 @@ public class FirstActivity extends BaseActivity {
     private long currentDownloadId = -1; // 保存当前下载任务ID
 
     private void downloadFile(String url) {
-        try {
-            if (TextUtils.isEmpty(url)) {
-                Toast.makeText(this, "下载地址为空", Toast.LENGTH_SHORT).show();
-                return;
+        new Thread(() -> {
+            try {
+                if (TextUtils.isEmpty(url)) {
+                    Toast.makeText(this, "下载地址为空", Toast.LENGTH_SHORT).show();
+                    return;
+                }
+
+                if (url.startsWith("blob:") || url.startsWith("data:")) {
+                    Toast.makeText(this, "无法直接下载 Blob 文件，请检查前端下载逻辑", Toast.LENGTH_SHORT).show();
+                    return;
+                }
+
+                Uri uri = Uri.parse(url);
+                DownloadManager.Request request = new DownloadManager.Request(uri);
+
+                String fileName = URLUtil.guessFileName(url, null, null);
+                request.setTitle(fileName);
+                request.setDescription("正在下载文件...");
+                request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
+                request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, fileName);
+                request.allowScanningByMediaScanner();
+                request.addRequestHeader("User-Agent", System.getProperty("http.agent"));
+
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                    request.setRequiresCharging(false);
+                    request.setAllowedOverMetered(true);
+                    request.setAllowedOverRoaming(true);
+                }
+
+                String mimeType = getMimeTypeForUrl(url);
+                request.setMimeType(!TextUtils.isEmpty(mimeType) ? mimeType : "application/octet-stream");
+
+                DownloadManager dm = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
+                if (dm != null) {
+                    Toast.makeText(this, "文件已开始下载，请等待", Toast.LENGTH_SHORT).show();
+                    currentDownloadId = dm.enqueue(request);
+                    startDownloadProgressMonitor(dm, currentDownloadId);
+                } else {
+                    Toast.makeText(this, "系统下载服务不可用", Toast.LENGTH_SHORT).show();
+                }
+
+            } catch (Exception e) {
+                e.printStackTrace();
+                Toast.makeText(this, "下载失败: " + e.getMessage(), Toast.LENGTH_SHORT).show();
             }
-
-            if (url.startsWith("blob:") || url.startsWith("data:")) {
-                Toast.makeText(this, "无法直接下载 Blob 文件，请检查前端下载逻辑", Toast.LENGTH_SHORT).show();
-                return;
-            }
-
-            Uri uri = Uri.parse(url);
-            DownloadManager.Request request = new DownloadManager.Request(uri);
-
-            String fileName = URLUtil.guessFileName(url, null, null);
-            request.setTitle(fileName);
-            request.setDescription("正在下载文件...");
-            request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
-            request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, fileName);
-            request.allowScanningByMediaScanner();
-            request.addRequestHeader("User-Agent", System.getProperty("http.agent"));
-
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
-                request.setRequiresCharging(false);
-                request.setAllowedOverMetered(true);
-                request.setAllowedOverRoaming(true);
-            }
-
-            String mimeType = getMimeTypeForUrl(url);
-            request.setMimeType(!TextUtils.isEmpty(mimeType) ? mimeType : "application/octet-stream");
-
-            DownloadManager dm = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
-            if (dm != null) {
-                Toast.makeText(this, "文件已开始下载，请等待", Toast.LENGTH_SHORT).show();
-                currentDownloadId = dm.enqueue(request);
-                startDownloadProgressMonitor(dm, currentDownloadId);
-            } else {
-                Toast.makeText(this, "系统下载服务不可用", Toast.LENGTH_SHORT).show();
-            }
-
-        } catch (Exception e) {
-            e.printStackTrace();
-            Toast.makeText(this, "下载失败: " + e.getMessage(), Toast.LENGTH_SHORT).show();
-        }
+        }).start();
     }
 
     /**
@@ -553,15 +555,6 @@ public class FirstActivity extends BaseActivity {
             }
         }
 
-        // ✅ 供前端调用的文件选择方法
-        @JavascriptInterface
-        public void previewFile(String url) {
-            FirstActivity activity = activityRef.get();
-            if (activity != null && !TextUtils.isEmpty(url)) {
-                activity.runOnUiThread(() -> activity.previewFile(url));
-            }
-        }
-
         // ✅ 供前端调用的文件选择方法
         @JavascriptInterface
         public void setToken(String token) {
@@ -570,6 +563,7 @@ public class FirstActivity extends BaseActivity {
                 activity.runOnUiThread(() -> activity.setToken(token));
             }
         }
+
         @JavascriptInterface
         public void showLog(String message) {
             FirstActivity activity = activityRef.get();