mirror of
https://github.com/purplecabbage/phonegap-plugins.git
synced 2026-01-15 01:08:17 -05:00
239 lines
7.5 KiB
Java
Executable File
239 lines
7.5 KiB
Java
Executable File
/**
|
|
* Phonegap Barcode Scanner plugin
|
|
* Copyright (c) Matt Kane 2010
|
|
*
|
|
*/
|
|
|
|
package com.beetight.barcodescanner;
|
|
|
|
|
|
|
|
import org.json.JSONArray;
|
|
import org.json.JSONException;
|
|
|
|
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 com.phonegap.api.PhonegapActivity;
|
|
import com.phonegap.api.Plugin;
|
|
import com.phonegap.api.PluginResult;
|
|
|
|
/**
|
|
* This calls out to the ZXing barcode reader and returns the result.
|
|
*/
|
|
public class BarcodeScanner extends Plugin {
|
|
public static final int REQUEST_CODE = 0x0ba7c0de;
|
|
|
|
|
|
public static final String defaultInstallTitle = "Install Barcode Scanner?";
|
|
public static final String defaultInstallMessage = "This requires the free Barcode Scanner app. Would you like to install it now?";
|
|
public static final String defaultYesString = "Yes";
|
|
public static final String defaultNoString = "No";
|
|
|
|
public String callback;
|
|
|
|
/**
|
|
* Constructor.
|
|
*/
|
|
public BarcodeScanner() {
|
|
}
|
|
|
|
/**
|
|
* Executes the request and returns PluginResult.
|
|
*
|
|
* @param action The action to execute.
|
|
* @param args JSONArray of arguments for the plugin.
|
|
* @param callbackId The callback id used when calling back into JavaScript.
|
|
* @return A PluginResult object with a status and message.
|
|
*/
|
|
public PluginResult execute(String action, JSONArray args, String callbackId) {
|
|
this.callback = callbackId;
|
|
|
|
try {
|
|
if (action.equals("encode")) {
|
|
String type = null;
|
|
if(args.length() > 0) {
|
|
type = args.getString(0);
|
|
}
|
|
|
|
String data = null;
|
|
if(args.length() > 1) {
|
|
data = args.getString(1);
|
|
}
|
|
|
|
String installTitle = defaultInstallTitle;
|
|
if(args.length() > 2) {
|
|
installTitle = args.getString(2);
|
|
}
|
|
|
|
String installMessage = defaultInstallMessage;
|
|
if(args.length() > 3) {
|
|
installMessage = args.getString(3);
|
|
}
|
|
|
|
String yesString = defaultYesString;
|
|
if(args.length() > 4) {
|
|
yesString = args.getString(4);
|
|
}
|
|
|
|
String noString = defaultNoString;
|
|
if(args.length() > 5) {
|
|
noString = args.getString(5);
|
|
}
|
|
|
|
// if data.TypeOf() == Bundle, then call
|
|
// encode(type, Bundle)
|
|
// else
|
|
// encode(type, String)
|
|
this.encode(type, data, installTitle, installMessage, yesString, noString);
|
|
}
|
|
else if (action.equals("scan")) {
|
|
String barcodeTypes = null;
|
|
if(args.length() > 0) {
|
|
barcodeTypes = args.getString(0);
|
|
}
|
|
|
|
String installTitle = defaultInstallTitle;
|
|
if(args.length() > 1) {
|
|
installTitle = args.getString(1);
|
|
}
|
|
|
|
String installMessage = defaultInstallMessage;
|
|
if(args.length() > 2) {
|
|
installMessage = args.getString(2);
|
|
}
|
|
|
|
String yesString = defaultYesString;
|
|
if(args.length() > 3) {
|
|
yesString = args.getString(3);
|
|
}
|
|
|
|
String noString = defaultNoString;
|
|
if(args.length() > 4) {
|
|
noString = args.getString(4);
|
|
}
|
|
|
|
scan(barcodeTypes, installTitle, installMessage, yesString, noString);
|
|
} else {
|
|
return new PluginResult(PluginResult.Status.INVALID_ACTION);
|
|
}
|
|
PluginResult r = new PluginResult(PluginResult.Status.NO_RESULT);
|
|
r.setKeepCallback(true);
|
|
return r;
|
|
} catch (JSONException e) {
|
|
e.printStackTrace();
|
|
return new PluginResult(PluginResult.Status.JSON_EXCEPTION);
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Initiates a barcode scan. If the ZXing scanner isn't installed, the user
|
|
* will be prompted to install it.
|
|
* @param types The barcode types to accept
|
|
* @param installTitle The title for the dialog box that prompts the user to install the scanner
|
|
* @param installMessage The message prompting the user to install the barcode scanner
|
|
* @param yesString The string "Yes" or localised equivalent
|
|
* @param noString The string "No" or localised version
|
|
*/
|
|
public void scan(String barcodeFormats, String installTitle, String installMessage, String yesString, String noString ) {
|
|
Intent intentScan = new Intent("com.google.zxing.client.android.SCAN");
|
|
intentScan.addCategory(Intent.CATEGORY_DEFAULT);
|
|
|
|
// A null format means we scan for any type
|
|
if (barcodeFormats != null) {
|
|
// Tell the scanner what types we're after
|
|
intentScan.putExtra("SCAN_FORMATS", barcodeFormats);
|
|
}
|
|
|
|
try {
|
|
this.ctx.startActivityForResult((Plugin) this, intentScan, REQUEST_CODE);
|
|
} catch (ActivityNotFoundException e) {
|
|
showDownloadDialog(installTitle, installMessage, yesString, noString);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Called when the barcode scanner exits
|
|
*
|
|
* @param requestCode The request code originally supplied to startActivityForResult(),
|
|
* allowing you to identify who this result came from.
|
|
* @param resultCode The integer result code returned by the child activity through its setResult().
|
|
* @param intent An Intent, which can return result data to the caller (various data can be attached to Intent "extras").
|
|
*/
|
|
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
|
|
if (requestCode == REQUEST_CODE) {
|
|
if (resultCode == Activity.RESULT_OK) {
|
|
String contents = intent.getStringExtra("SCAN_RESULT");
|
|
this.success(new PluginResult(PluginResult.Status.OK, contents), this.callback);
|
|
} else {
|
|
this.error(new PluginResult(PluginResult.Status.ERROR), this.callback);
|
|
}
|
|
}
|
|
}
|
|
|
|
private void showDownloadDialog(final String title, final String message, final String yesString, final String noString) {
|
|
final PhonegapActivity context = this.ctx;
|
|
Runnable runnable = new Runnable() {
|
|
public void run() {
|
|
|
|
AlertDialog.Builder dialog = new AlertDialog.Builder(context);
|
|
dialog.setTitle(title);
|
|
dialog.setMessage(message);
|
|
dialog.setPositiveButton(yesString, new DialogInterface.OnClickListener() {
|
|
public void onClick(DialogInterface dlg, int i) {
|
|
dlg.dismiss();
|
|
Intent intent = new Intent(Intent.ACTION_VIEW,
|
|
Uri.parse("market://search?q=pname:com.google.zxing.client.android")
|
|
);
|
|
try {
|
|
context.startActivity(intent);
|
|
} catch (ActivityNotFoundException e) {
|
|
// We don't have the market app installed, so download it directly.
|
|
Intent in = new Intent(Intent.ACTION_VIEW);
|
|
in.setData(Uri.parse("http://zxing.googlecode.com/files/BarcodeScanner3.53.apk"));
|
|
context.startActivity(in);
|
|
|
|
}
|
|
|
|
}
|
|
});
|
|
dialog.setNegativeButton(noString, new DialogInterface.OnClickListener() {
|
|
public void onClick(DialogInterface dlg, int i) {
|
|
dlg.dismiss();
|
|
}
|
|
});
|
|
dialog.create();
|
|
dialog.show();
|
|
}
|
|
};
|
|
context.runOnUiThread(runnable);
|
|
}
|
|
|
|
/**
|
|
* Initiates a barcode encode. If the ZXing scanner isn't installed, the user
|
|
* will be prompted to install it.
|
|
* @param type The barcode type to encode
|
|
* @param data The data to encode in the bar code
|
|
* @param installTitle The title for the dialog box that prompts the user to install the scanner
|
|
* @param installMessage The message prompting the user to install the barcode scanner
|
|
* @param yesString The string "Yes" or localised equivalent
|
|
* @param noString The string "No" or localised version
|
|
*/
|
|
public void encode(String type, String data, String installTitle, String installMessage, String yesString, String noString) {
|
|
Intent intentEncode = new Intent("com.google.zxing.client.android.ENCODE");
|
|
intentEncode.putExtra("ENCODE_TYPE", type);
|
|
intentEncode.putExtra("ENCODE_DATA", data);
|
|
|
|
try {
|
|
this.ctx.startActivity(intentEncode);
|
|
} catch (ActivityNotFoundException e) {
|
|
showDownloadDialog(installTitle, installMessage, yesString, noString);
|
|
}
|
|
}
|
|
}
|