所有的android设备都有内置SD卡吗？
[英]Do ALL android devices have an internal SD card?
问题描述
On the first run of my app, I am downloading a pretty big file to /sdcard/ 
在我的应用程序首次运行时，我正在将一个很大的文件下载到/ sdcard /
I already know this can fail if the internal SD card of the user's phone is full or not mounted (eg if the phone is connected to a PC as a mass storage device, or has not been properly disconnected from a PC). 我已经知道，如果用户电话的内部SD卡已满或未安装（例如，电话已作为大容量存储设备连接到PC，或者未与PC正确断开连接），这可能会失败。
But are there any android devices with NO INTERNAL SD CARD ? 但是，有没有没有内置SD卡的android设备吗？ (on which my app would definitely be unusable) （我的应用肯定无法使用）
3 个解决方案
解决方案1
24 已采纳 2010-11-07 15:51:22
But are there any android devices with NO INTERNAL SD CARD ?
Any device that has the Android Market will have at least 2GB of storage at Environment.getExternalStorageDirectory() . 具有Android Market的任何设备都将在Environment.getExternalStorageDirectory()处至少拥有2GB的存储空间。 Whether that is an SD card or something else will vary by device. 是SD卡还是其他设备，将因设备而异。
解决方案2
2 2010-11-07 15:52:34
I personally have Samsung Galaxy Tab and it doesn't have internal SD card (shipped with, can be bought separately I guess). 我个人有Samsung Galaxy Tab，并且没有内置SD卡（附带，我想可以单独购买）。
In my program I call Environment.getExternalStorageDirectory and it seems to provide with internal memory path when no SD card is mounted. 在我的程序中，我调用Environment.getExternalStorageDirectory，当未安装SD卡时，它似乎提供了内部存储路径。 So far works, haven't investigated further. 到目前为止，还没有进一步研究。
解决方案3
2 2011-06-14 20:59:52
All Android compatible devices supports external storage. 所有与Android兼容的设备均支持外部存储。 This doesn't necessary have to be a SD card, it could be non-removable internal storage. 不必一定是SD卡，它可以是不可移动的内部存储器。
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