image - Android - Reading EXIF information from file using ExifReader very slow -


i have image processing app needs remember photos processed. solution came store given string ("abc-"), exif make tag. so, in order filter photos, app needs read exif make attribute see if contains string ("abc-"). have tested following code , execution took around 15 seconds on friend's phone android 5.1.1 cyanogenmod , 1000 photos, poor time.

public boolean isalreadyprocessed(file imagefile) {     android.media.exifinterface exifinterface = new exifinterface(imagefile.getabsolutepath());     string attribute = exifinterface.getattribute(exifinterface.tag_make);      return attribute.contains("abc-"); }

other solution thought store processed images filenames sqlite database. faster option, has problem if user copys photos new device, app wouldn't remember photos processed, need backup database cloud , restore on new device.

so, there more efficient way read exif image metadata? if not, there better way accomplish second way mentioned (to store images names in database)?

thank you


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