Storing & Retrieving Images in Sqlite for Android: Blob Tutorial

If you're developing an Android app that requires the storage and retrieval of images, you may be wondering how to accomplish this task using Sqlite. One method is to use the Blob data type, which allows you to store binary data including images.

To store an image in Sqlite as a Blob, you first need to convert the image into a byte array. This can be done using the BitmapFactory class in Android. Once you have the byte array, you can insert it into the database using a ContentValues object and the insert() method.

To retrieve the image from the database, you can use a cursor to query the database and retrieve the Blob data as a byte array. You can then use BitmapFactory to convert the byte array back into an image.

It's important to note that storing images as Blobs in Sqlite can increase the size of your database significantly, so it's not recommended for large images or large amounts of images. In these cases, it may be better to store the images externally and reference them in the database using a file path.

Overall, using Blobs to store and retrieve images in Sqlite for Android can be a useful solution for certain situations. Just be sure to consider the size and number of images you're working with before deciding on this approach.