![]() Int column_index = cursor.getColumnIndexOrThrow(. Public static void verifyStoragePermissions(Activity activity) Ĭursor cursor = mContext.getContentResolver().query(contentUri, proj, null, ![]() So, in AndroidManifest.xml, we have to add those two lines: We have to bear in mind that we are willing to read external storage (to read images from storage) and write to external storage (to write cleaned images) Permissions overview – Android Developers This includes reading or writing the user’s private data (such as contacts or emails), reading or writing another app’s files, performing network access, keeping the device awake, and so on. Depending on the feature, the system might automatically grant permission or prompt the user to approve the request.Ī central design point of the Android security architecture is that no app, by default, has permission to perform any operations that would adversely impact other apps, the operating system, or the user. Android apps must request permission to access sensitive user data (such as contacts and SMS) and certain system features (such as camera and internet). The purpose of permission is to protect the privacy of an Android user. Since Android 6.0 (introduced in 2015), we have a crucial security mechanism – permissions.Īs we can read in the official documentation: If you want to learn more about layouts, check out Android guides: Layout Recently, I came across an open source project named ExifCleaner. Note: Sure, it needs improvement before publishing the app, but for article purposes, it’s fine □ I also wanted EXIF data to be shown after the click on the image: The whole list is going to be (copied) cleaned and saved in a different directory.įor this article purposes, I’ll keep the interface as simple as possible – I need only a grid view (to present a grid of images) and two buttons – load images and clear images.I want to build a simple application where: Now, according to the DRY (don’t repeat yourself) principle, I’ll focus on building an Android app instead of explaining why we should clear metadata. If you want to get more details about Why privacy is so important with examples such as people giving out personal passwords in a street poll, a geotagging trace of Russians in Ukrainian territory or social media sites, and their attitude to metadata, I strongly recommend to get back to Simple Python Ex-if remover and give it a closer look □ ![]() Now is the time for the final weapon against Exif – Android EXIF cleaner! A while ago, when I published my first project here ( Project: Smart Bulb Cop Car), I discovered a need for Exif metadata cleaning.Ī few days later, Simple Python Ex-if remover was developed. ![]()
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