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/* * Copyright (C) 2008 ZXing authors// w w w . ja v a 2 s . c om * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.google.zxing.client.android; /** * This class provides the constants to use when sending an Intent to Barcode Scanner. * These strings are effectively API and cannot be changed. * * @author dswitkin@google.com (Daniel Switkin) */ public final class Intents { private Intents() { } public static final class Scan { /** * Send this intent to open the Barcodes app in scanning mode, find a barcode, and return * the results. */ public static final String ACTION = "com.google.zxing.client.android.SCAN"; /** * By default, sending this will decode all barcodes that we understand. However it * may be useful to limit scanning to certain formats. Use * {@link android.content.Intent#putExtra(String, String)} with one of the values below. * * Setting this is effectively shorthand for setting explicit formats with {@link #FORMATS}. * It is overridden by that setting. */ public static final String MODE = "SCAN_MODE"; /** * Decode only UPC and EAN barcodes. This is the right choice for shopping apps which get * prices, reviews, etc. for products. */ public static final String PRODUCT_MODE = "PRODUCT_MODE"; /** * Decode only 1D barcodes. */ public static final String ONE_D_MODE = "ONE_D_MODE"; /** * Decode only QR codes. */ public static final String QR_CODE_MODE = "QR_CODE_MODE"; /** * Decode only Data Matrix codes. */ public static final String DATA_MATRIX_MODE = "DATA_MATRIX_MODE"; /** * Decode only Aztec. */ public static final String AZTEC_MODE = "AZTEC_MODE"; /** * Decode only PDF417. */ public static final String PDF417_MODE = "PDF417_MODE"; /** * Comma-separated list of formats to scan for. The values must match the names of * {@link com.google.zxing.BarcodeFormat}s, e.g. {@link com.google.zxing.BarcodeFormat#EAN_13}. * Example: "EAN_13,EAN_8,QR_CODE". This overrides {@link #MODE}. */ public static final String FORMATS = "SCAN_FORMATS"; /** * @see com.google.zxing.DecodeHintType#CHARACTER_SET */ public static final String CHARACTER_SET = "CHARACTER_SET"; /** * Optional parameters to specify the width and height of the scanning rectangle in pixels. * The app will try to honor these, but will clamp them to the size of the preview frame. * You should specify both or neither, and pass the size as an int. */ public static final String WIDTH = "SCAN_WIDTH"; public static final String HEIGHT = "SCAN_HEIGHT"; /** * Desired duration in milliseconds for which to pause after a successful scan before * returning to the calling intent. Specified as a long, not an integer! * For example: 1000L, not 1000. */ public static final String RESULT_DISPLAY_DURATION_MS = "RESULT_DISPLAY_DURATION_MS"; /** * Prompt to show on-screen when scanning by intent. Specified as a {@link String}. */ public static final String PROMPT_MESSAGE = "PROMPT_MESSAGE"; /** * If a barcode is found, Barcodes returns {@link android.app.Activity#RESULT_OK} to * {@link android.app.Activity#onActivityResult(int, int, android.content.Intent)} * of the app which requested the scan via * {@link android.app.Activity#startActivityForResult(android.content.Intent, int)} * The barcodes contents can be retrieved with * {@link android.content.Intent#getStringExtra(String)}. * If the user presses Back, the result code will be {@link android.app.Activity#RESULT_CANCELED}. */ public static final String RESULT = "SCAN_RESULT"; /** * Call {@link android.content.Intent#getStringExtra(String)} with {@link #RESULT_FORMAT} * to determine which barcode format was found. * See {@link com.google.zxing.BarcodeFormat} for possible values. */ public static final String RESULT_FORMAT = "SCAN_RESULT_FORMAT"; /** * Call {@link android.content.Intent#getStringExtra(String)} with {@link #RESULT_UPC_EAN_EXTENSION} * to return the content of any UPC extension barcode that was also found. Only applicable * to {@link com.google.zxing.BarcodeFormat#UPC_A} and {@link com.google.zxing.BarcodeFormat#EAN_13} * formats. */ public static final String RESULT_UPC_EAN_EXTENSION = "SCAN_RESULT_UPC_EAN_EXTENSION"; /** * Call {@link android.content.Intent#getByteArrayExtra(String)} with {@link #RESULT_BYTES} * to get a {@code byte[]} of raw bytes in the barcode, if available. */ public static final String RESULT_BYTES = "SCAN_RESULT_BYTES"; /** * Key for the value of {@link com.google.zxing.ResultMetadataType#ORIENTATION}, if available. * Call {@link android.content.Intent#getIntArrayExtra(String)} with {@link #RESULT_ORIENTATION}. */ public static final String RESULT_ORIENTATION = "SCAN_RESULT_ORIENTATION"; /** * Key for the value of {@link com.google.zxing.ResultMetadataType#ERROR_CORRECTION_LEVEL}, if available. * Call {@link android.content.Intent#getStringExtra(String)} with {@link #RESULT_ERROR_CORRECTION_LEVEL}. */ public static final String RESULT_ERROR_CORRECTION_LEVEL = "SCAN_RESULT_ERROR_CORRECTION_LEVEL"; /** * Prefix for keys that map to the values of {@link com.google.zxing.ResultMetadataType#BYTE_SEGMENTS}, * if available. The actual values will be set under a series of keys formed by adding 0, 1, 2, ... * to this prefix. So the first byte segment is under key "SCAN_RESULT_BYTE_SEGMENTS_0" for example. * Call {@link android.content.Intent#getByteArrayExtra(String)} with these keys. */ public static final String RESULT_BYTE_SEGMENTS_PREFIX = "SCAN_RESULT_BYTE_SEGMENTS_"; /** * Setting this to false will not save scanned codes in the history. Specified as a {@code boolean}. */ public static final String SAVE_HISTORY = "SAVE_HISTORY"; private Scan() { } } public static final class History { public static final String ITEM_NUMBER = "ITEM_NUMBER"; private History() { } } public static final class Encode { /** * Send this intent to encode a piece of data as a QR code and display it full screen, so * that another person can scan the barcode from your screen. */ public static final String ACTION = "com.google.zxing.client.android.ENCODE"; /** * The data to encode. Use {@link android.content.Intent#putExtra(String, String)} or * {@link android.content.Intent#putExtra(String, android.os.Bundle)}, * depending on the type and format specified. Non-QR Code formats should * just use a String here. For QR Code, see Contents for details. */ public static final String DATA = "ENCODE_DATA"; /** * The type of data being supplied if the format is QR Code. Use * {@link android.content.Intent#putExtra(String, String)} with one of {@link Contents.Type}. */ public static final String TYPE = "ENCODE_TYPE"; /** * The barcode format to be displayed. If this isn't specified or is blank, * it defaults to QR Code. Use {@link android.content.Intent#putExtra(String, String)}, where * format is one of {@link com.google.zxing.BarcodeFormat}. */ public static final String FORMAT = "ENCODE_FORMAT"; /** * Normally the contents of the barcode are displayed to the user in a TextView. Setting this * boolean to false will hide that TextView, showing only the encode barcode. */ public static final String SHOW_CONTENTS = "ENCODE_SHOW_CONTENTS"; private Encode() { } } public static final class SearchBookContents { /** * Use Google Book Search to search the contents of the book provided. */ public static final String ACTION = "com.google.zxing.client.android.SEARCH_BOOK_CONTENTS"; /** * The book to search, identified by ISBN number. */ public static final String ISBN = "ISBN"; /** * An optional field which is the text to search for. */ public static final String QUERY = "QUERY"; private SearchBookContents() { } } public static final class WifiConnect { /** * Internal intent used to trigger connection to a wi-fi network. */ public static final String ACTION = "com.google.zxing.client.android.WIFI_CONNECT"; /** * The network to connect to, all the configuration provided here. */ public static final String SSID = "SSID"; /** * The network to connect to, all the configuration provided here. */ public static final String TYPE = "TYPE"; /** * The network to connect to, all the configuration provided here. */ public static final String PASSWORD = "PASSWORD"; private WifiConnect() { } } public static final class Share { /** * Give the user a choice of items to encode as a barcode, then render it as a QR Code and * display onscreen for a friend to scan with their phone. */ public static final String ACTION = "com.google.zxing.client.android.SHARE"; private Share() { } } }