Android:在哪里以及如何在应用程序中存储图像？

Question

我在存储头像时遇到问题。我的应用程序通过图像获取了用户的详细信息(图像位于 byte[] 数组中)。如何将这些图像存储在我的应用程序中？我的意思是我应该将每个用户的图像保存在内部或外部存储中吗？还是我应该及时使用这个图像并设置为ImageView？我的问题的最佳解决方案是什么？

感谢帮助:)

Answer 1

将图像存储在内部存储器中有优点也有缺点。它还在很大程度上取决于您应用程序的业务逻辑。在安卓文档中here解释得很好。

Internal storage:

1. It's always available.

2. Files saved here are accessible by only your app.

3. When the user uninstalls your app, the system removes all your app's files from internal storage.

External storage:

1. It's not always available, because the user can mount the external storage as USB storage and in some cases remove it from the device.

2. It's world-readable, so files saved here may be read outside of your control.When the user uninstalls your app, the system removes your app's files from here only if you save them in the directory from getExternalFilesDir().