How to add images to Realm Database in Android?

Question

I am trying to implement a login (no register) service in my application using Realm as database . It is the first time I am trying to use this so I am really new to Realm. I have read Realm documentation but I wasn't able to figure out how can I add Image to Realm and use it in my app.

The scenario is like this: I have predefined username and password set and when user logins with that username and password, I want to update the Account Header Image in Navigation Drawer to that username and password . Also, user can update the Account Header Image too.

I hope you guys were able to understand my scenario. Please help me with this.

Any help is greatly appreciated. Thanks. :)

Anmol

Answer 1

Realm documentations say the following limitation:

Strings and byte arrays (byte[]) cannot be larger than 16 MB.

The recommended way is to save the path to a file instead of the actual image.

Answer 2

One of the ways to do so is to convert image into base64 string and store it as a string in realm database.

While retrieving, decode that base 64 string to image and use it.

Here is a link of how to convert image to base64

Another not so reliable solution is download the image into some file and store the file path in realm

Answer 3

如果blob数据类型在领域中可用，则可以将图像字节数组存储在blob中

Answer 4

如果您有较大的位图（图像），最好将图像存储在磁盘上，并将路径存储在Realm中。