how to use camera in android studio| code
activity_main.xml(layout) <? xml version= "1.0" encoding= "utf-8" ?> < RelativeLayout xmlns: android = "http://schemas.android.com/apk/res/android" xmlns: tools = "http://schemas.android.com/tools" android :layout_width= "match_parent" android :layout_height= "match_parent" android :paddingBottom= "@dimen/activity_vertical_margin" android :paddingLeft= "@dimen/activity_horizontal_margin" android :paddingRight= "@dimen/activity_horizontal_margin" android :paddingTop= "@dimen/activity_vertical_margin" tools :context= "com.example.avi.trial.MainActivity" > < Button android :layout_width= "match_parent" android :layout_height= "match_parent" android :id= "@+id/btn1" android :background= "@mipmap/camera" /> </ RelativeLayout > ******************...