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Editorial Team
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Asked: 2026-05-22T23:31:46+00:00

I saved an image using Coredata in my application. Then i imported the Sqlite

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I saved an image using Coredata in my application. Then i imported the Sqlite file in another project and retrieved that Blob field and converted to NSData. Then i got a NULL value when trying to convert this NSData to UIImage.

NSData *data=UIImageJPEGRepresentation(tempImage, 1.0);

saved the above data by saving context

To get back from Sqlite ::

const char *sqlStatement = "select ID,NAME,IMAGE from CALL";
sqlite3_stmt *compiledStatement;
NSData *data=[[NSData alloc] initWithBytes: sqlite3_column_blob(compiledStatement, 2) length:sqlite3_column_bytes(compiledStatement, 2)];
UIImage * showImage= [UIImage imageWithData: data];
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1 Answer

  1. Editorial Team

    The code you are writing is correct.

    Difference I found in your code and some other code on internet is:

    You use: UIImageJPEGRepresentation(tempImage, 1.0);

    They use: UIImagePNGRepresentation(self.coffeeImage);

    Though this is not the correct solution of your question but though It may help you to investigate further in issue.

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