To expand on alex.dorokhov’s answer with some sample code. The support library is a great way to go.
build.gradle
dependencies {
...
compile "com.android.support:exifinterface:25.0.1"
...
}
Example code:
import android.support.media.ExifInterface;
...
try (InputStream inputStream = context.getContentResolver().openInputStream(uri)) {
ExifInterface exif = new ExifInterface(inputStream);
int orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL);
} catch (IOException e) {
e.printStackTrace();
}
The reason I had to do it this way once we started targeting api 25 (maybe a problem on 24+ also) but still supporting back to api 19, on android 7 our app would crash if I passed in a URI to the camera that was just referencing a file. Hence I had to create a URI to pass to the camera intent like this.
FileProvider.getUriForFile(context, context.getApplicationContext().getPackageName() + ".fileprovider", tempFile);
The issue there is that file its not possible to turn the URI into a real file path (other than holding on to the temp file path).