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QR_CODE GENERATOR IN ANDROID

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History                       The QR code system was invented in 1994 by Denso Wave. Its purpose was to track vehicles during manufacture; it was designed to allow high-speed component scanning. [3] Although initially used for tracking parts in vehicle manufacturing, QR codes now are used in a much broader context, including both commercial tracking applications and convenience-oriented applications aimed at mobile-phone users (termed mobile tagging). QR codes may be used to display text to the user, to add a vCard contact to the user's device, to open a Uniform Resource Identifier (URI), or to compose an e-mail or text message. Users can generate and print their own QR codes for others to scan and use by visiting one of several paid and free QR code generating sites or apps. The technology has since become one of the most-used types of two-dimensional barcode. [4] 1 .What is QR_code ?          ...

HOW TO CREATE THE CUSTOM DIALOG BOX IN ANDROID

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HOW TO CREATE THE CUSTOM DIALOG BOX IN ANDROID: 1.Create a custom layout in xml (example :alert_dialog.xml) 2. Write this code in java class Complete code in XML <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:id="@+id/popup_element"     android:layout_width="400dp"     android:layout_height="200dp"     android:background="@drawable/popupbg"     android:orientation="vertical" >     <ImageView         android:id="@+id/imageView1"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_alignParentLeft="true"         android:layout_alignParentTop="true"         android:layout_marginLeft="22dp"         android:layout_margin...
I  DONE BY IN BARCODE GENERATOR FOR ANDROID if any quries tell me