1.下载文件报错异常可以先建立临时空文件方便下次任务驱动下载

2.启动第三方应用需要建立新栈

mylibrary/src/main/java/com/android/download/DownLoadTaskThread.java

@@ -130,6 +130,14 @@ public class DownLoadTaskThread implements Runnable {
             e.printStackTrace();
             LogUtils.loge("download Exception===>"+e.getMessage());
             // TODO: 2025/12/17 异常检验-tmp是否存在，不存在再建一个0KB临时空文件可保证 文件以后一定能下载下来
+            File file = new File(bean.getPath(), bean.getFileName()+"-tmp");
+            if(!file.exists()){
+                try {
+                    file.createNewFile();
+                } catch (IOException ex) {
+                    LogUtils.loge("exception happen before file create,must create tmp file");
+                }
+            }
             if (observer != null) {
                 observer.onError(bean, bean.getTaskId(), e.getMessage());
             }

mylibrary/src/main/java/com/android/util/IntentUtil.java

@@ -19,6 +19,7 @@ public class IntentUtil {
             intent = context.getPackageManager().getLeanbackLaunchIntentForPackage(packageName);
         }
         if(intent!=null){
+            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
             context.startActivity(intent);
         }else {
             Toast.makeText( context, tipmsg, Toast.LENGTH_SHORT).show();