After launching the app and navigating to the Preview Activity,when I clicked on the "Open a file" option to select a file for preview and select on an image file or a text file I was expecting the app to either load the file for preview or prompt a message that I have selected the wrong file format. Also when I click on the "Scan a QR code " option was expecting a preview or a dialog if the QR code is not valid.
When I click on the "Open a file" option and chose an image file or a text file, the app crashes. Also when I pick up any QR code and scan the app crashes.
