原因是:
由于Andorid上的设计,MTP是透過Query Database的方式获取Object/Storage/Device的资讯。不论是AP或是Service或是任何process对Object(档案)有修改的,都必須update database....这样PC才有机会获取updated的资讯....
修改方法:
diff --git a/alps/packages/apps/Settings/src/com/android/settings/deviceinfo/UsbBackend.java b/alps/packages/apps/Settings/src/com/android/settings/deviceinfo/UsbBackend.java
old mode 100644
new mode 100755
index 9a199d4..4b3d612
--- a/alps/packages/apps/Settings/src/com/android/settings/deviceinfo/UsbBackend.java
+++ b/alps/packages/apps/Settings/src/com/android/settings/deviceinf