QR code to identify Android app

TextView class for displaying textual information imageview display

Id:button1 (used to display "scan QR Code") layout: fill_parent make the screen full (advanced version with match_parent) Wrap_cont: Layout elements change size based on content

　　

Id:result (used to display the information in the QR Code, textview) XML: android:layout_below= "@+id/button1" the bottom of the control is placed under the control of the given ID (the info box is placed below the key)

Android:lines= "2" sets the number of rows to two rows

Id:qrcode_bitmap (used to display a fixed QR code image) placed under result in the layout

QR code to identify Android app