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package com.google.zxing.integration.android;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.ActivityNotFoundException;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.util.Log;
import android.view.Display;
import com.google.zxing.client.android.Intents;
import java.lang.CharSequence;import java.lang.Math;import java.lang.String;import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
/**
* TODO: update these docs - a lot of it is not relevant anymore.
*
* <p>A utility class which helps ease integration with Barcode Scanner via {@link android.content.Intent}s. This is a simple
* way to invoke barcode scanning and receive the result, without any need to integrate, modify, or learn the
* project's source code.</p>
* <p/>
* <h2>Initiating a barcode scan</h2>
* <p/>
* <p>Integration is essentially as easy as calling {@link #initiateScan(android.app.Activity)} and waiting
* for the result in your app.</p>
* <p/>
* <p>It does require that the Barcode Scanner application is installed. The
* {@link #initiateScan(android.app.Activity)} method will prompt the user to download the application, if needed.</p>
* <p/>
* <p>There are a few steps to using this integration. First, your {@link android.app.Activity} must implement
* the method {@link android.app.Activity#onActivityResult(int, int, android.content.Intent)} and include a line of code like this:</p>
* <p/>
* <pre>{@code
* public void onActivityResult(int requestCode, int resultCode, Intent intent) {
* IntentResult scanResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, intent);
* if (scanResult != null) {
* // handle scan result
* }
* // else continue with any other code you need in the method
* ...
* }
* }</pre>
* <p/>
* <p>This is where you will handle a scan result.
* Second, just call this in response to a user action somewhere to begin the scan process:</p>
* <p/>
* <pre>{@code IntentIntegrator.initiateScan(yourActivity);}</pre>
* <p/>
* <h2>Sharing text via barcode</h2>
* <p/>
* <p>To share text, encoded as a QR Code on-screen, similarly, see {@link #shareText(android.app.Activity, CharSequence)}.</p>
* <p/>
* <p>Some code, particularly download integration, was contributed from the Anobiit application.</p>
*
* @author Sean Owen
* @author Fred Lin
* @author Isaac Potoczny-Jones
* @author Brad Drehmer
* @author gcstang
*/
public final class IntentIntegrator {
public static final int REQUEST_CODE = 0x0000c0de; // Only use bottom 16 bits
private static final String TAG = IntentIntegrator.class.getSimpleName();
private static final String PACKAGE = "com.google.zxing.client.android";
// supported barcode formats
public static final String PRODUCT_CODE_TYPES = "UPC_A,UPC_E,EAN_8,EAN_13";
public static final String ONE_D_CODE_TYPES = PRODUCT_CODE_TYPES + ",CODE_39,CODE_93,CODE_128";
public static final String QR_CODE_TYPES = "QR_CODE";
public static final String ALL_CODE_TYPES = null;
private IntentIntegrator() {
}
public static void initiateScan(Activity activity) {
initiateScan(activity, null);
}
public static void initiateScan(Activity activity, CharSequence stringDesiredBarcodeFormats) {
initiateScan(activity, stringDesiredBarcodeFormats, null);
}
/**
* Invokes scanning.
*
* @param stringDesiredBarcodeFormats a comma separated list of codes you would
* like to scan for.
*/
public static void initiateScan(Activity activity, CharSequence stringDesiredBarcodeFormats, String prompt) {
Intent intentScan = createScanIntent(activity);
// check which types of codes to scan for
if (stringDesiredBarcodeFormats != null) {
// set the desired barcode types
intentScan.putExtra("SCAN_FORMATS", stringDesiredBarcodeFormats);
String formats = stringDesiredBarcodeFormats.toString();
// Hack to use a wider viewfinder for CODE 39 barcodes. This should probably be in the main code instead.
if (formats.contains("CODE_39") && !formats.contains(QR_CODE_TYPES)) {
Display display = activity.getWindowManager().getDefaultDisplay();
int displayWidth = display.getWidth();
int displayHeight = display.getHeight();
if (displayHeight > displayWidth) {
// This is portrait dimensions, but the barcode scanner is always in landscape mode.
int temp = displayWidth;
//noinspection SuspiciousNameCombination
displayWidth = displayHeight;
displayHeight = temp;
}
int desiredWidth = displayWidth * 9 / 10;
int desiredHeight = Math.min(displayHeight * 3 / 4, 400); // Limit to 400px
intentScan.putExtra("SCAN_WIDTH", desiredWidth);
intentScan.putExtra("SCAN_HEIGHT", desiredHeight);
}
}
if (prompt != null) {
intentScan.putExtra("PROMPT_MESSAGE", prompt);
}
intentScan.putExtra("RESULT_DISPLAY_DURATION_MS", 0L);
activity.startActivityForResult(intentScan, REQUEST_CODE);
}
/**
* <p>Call this from your {@link android.app.Activity}'s
* {@link android.app.Activity#onActivityResult(int, int, android.content.Intent)} method.</p>
*
* @return null if the event handled here was not related to this class, or
* else an {@link IntentResult} containing the result of the scan. If the user cancelled scanning,
* the fields will be null.
*/
public static IntentResult parseActivityResult(int requestCode, int resultCode, Intent intent) {
if (requestCode == REQUEST_CODE) {
if (resultCode == Activity.RESULT_OK) {
String contents = intent.getStringExtra("SCAN_RESULT");
String formatName = intent.getStringExtra("SCAN_RESULT_FORMAT");
return new IntentResult(contents, formatName);
} else {
return new IntentResult(null, null);
}
}
return null;
}
/**
* Shares the given text by encoding it as a barcode, such that another user can
* scan the text off the screen of the device.
*
* @param text the text string to encode as a barcode
*/
public static void shareText(Activity activity, CharSequence text) {
// TODO: fix this
Intent intent = new Intent();
intent.setAction(PACKAGE + ".ENCODE");
intent.putExtra("ENCODE_TYPE", "TEXT_TYPE");
intent.putExtra("ENCODE_DATA", text);
activity.startActivity(intent);
}
private static Intent createScanIntent(Activity activity) {
Intent intent = new Intent(activity, com.google.zxing.client.android.CaptureActivity.class);
intent.setAction(Intents.Scan.ACTION);
return intent;
}
}
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