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以下是目前找到比较有效的帮 .thumbdata4-

文件瘦身的好方法.

下面的一大堆废话的核心就是进手机设置>应用程序>显示系统程序>媒体存储器>存储>清除数据/缓存.

重启后会发现thumbdata还会出现但是没有数GB那么大了.

How do I Reset the Android

Media Scan Database?

Android has a system-level utility which scans and indexes all

compatible media files and playlists on the device. The doubleTwist

Player app and the CloudPlayer app uses this database to help

populate the media library with songs and playlists.

But sometimes this database can be corrupted or have stale data so

incorrect songs and playlists appear in the app. The exact steps to

reset the database will vary slightly from device to device as each

version of Android is different but the general concept is the

same.

Go into the App Drawer and select

Android Settings.

Select the Apps configuration option.

Search for "Media Storage" but if it's

not shown, you may need to unhide it by selecting "Show system" in

the 3-dot option menu.

Select "Media Storage" and then tap on

the "Storage" option.

Select "Clear Data" and "OK" when the

confirmation dialog appears. This will reset the Android Media Scan

database.

After the reset, you can reboot your

device or use an app like "SD Scanner" to

force a rescan and reindex of the songs and playlists on your

device.