Android Open Source - scandit_glass Scandit S D K Demo Simple

• Back to Development/sdk  ↑

From Project

Back to project page scandit_glass.

License

The source code is released under:

MIT License

Java Source Code

package com.xtuple.packworkflow.main;
/*  www.  j a va  2 s. c  o m*/
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Toast;

import com.mirasense.scanditsdk.ScanditSDKAutoAdjustingBarcodePicker;
import com.mirasense.scanditsdk.interfaces.ScanditSDK;
import com.mirasense.scanditsdk.interfaces.ScanditSDKListener;

/**
 * Simple demo application illustrating the use of the Scandit SDK.
 *
 * Important information for the developer with respect to Android 2.1 support!
 *
 * Android 2.1 differs from subsequent versions of Android OS in that it
 * does not offer a camera preview mode in portrait mode (landscape only).
 * Android 2.2+ offers both - a camera preview in landscape mode and in portrait
 * mode. There are certain devices that run Android 2.2+ but do not properly
 * implement the methods needed for a portrait camera view.
 *
 * To address this difference between the Android versions, the Scandit SDK
 * offers the following approaches and the developer needs to choose his
 * preferred option:
 *
 * If you are showing the scanner on the full screen in a new Activity:
 *
 * - Instantiate the ScanditSDKAutoAdjustingBarcodePicker which will choose
 * whether to use the new or legacy picker.
 *
 * If you want to show the picker inside a view hierarchy/cropped/scaled you
 * have to make the distinction between the different pickers yourself. Fore
 * devices that don't support the new picker the following options exist:
 *
 * - a scan view in landscape mode scanning only(!) that is fully
 * customizable by the developer - ScanditSDKBarcodePicker.class
 *
 * - our own custom scan view with portrait mode scanning that offers only
 * limited customization options (show/hide title & tool bars,
 * but no additional Android UI elements) -  LegacyPortraitScanditSDKBarcodePicker.class
 *
 * For devices that do support the new picker the following options exist:
 *
 * - a scan view with portrait mode scanning that is fully customizable
 * by the developer (RECOMMENDED) - ScanditSDKBarcodePicker.class
 *
 * - any of the options listed under Android 2.1
 *
 * We recommend that developers choose the scan view in portrait mode on Android 2.2.
 * It has the native Android look&feel and provides full customization. We provide our
 * own custom scan view (LegacyPortraitScanditSDKBarcodePicker.class) in Android 2.1
 * to provide backwards compatibility with Android 2.1.
 *
 * To integrate the Scandit SDK, carry out the following three steps:
 *
 * 1. Create a BarcodePicker object that manages camera access and
 *    bar code scanning:
 *
 *    e.g.
 *    ScanditSDKBarcodePicker barcodePicker = new ScanditSDKBarcodePicker(this,
 *              R.raw.class, "your app key", true,
                ScanditSDKBarcodePicker.LOCATION_PROVIDED_BY_SCANDIT_SDK);
 *
 *  IMPORTANT: Make sure add your app key here. It is available from your Scandit SDK account.
 *
 * 2. Add it to the activity:
 *    my_activity.setContentView(barcodePicker);
 *
 * 3. Implement the ScanditSDKListener interface (didCancel, didScanBarcode,
 *    didManualSearch) and register with the ScanditSDKOverlayView to receive
 *    callbacks:
 *    barcodePicker.getOverlayView().addListener(this);
 *
 *
 * If you want to use the custom scan view for scanning in portrait mode in
 * Android 2.1, instantiate the LegacyPortraitScanditSDKBarcodePicker
 * class (as shown in the example below). There is utility method available
 * to determine whenever the default portrait scan view is not available
 * ScanditSDKBarcodePicker.canRunPortraitPicker().
 *
 *
 *
 * Copyright 2010 Mirasense AG
 */

/*
 * 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 premissions and
 * limitations under the License.
 */
public class ScanditSDKDemoSimple extends Activity implements ScanditSDKListener {

    // The main object for recognizing a displaying barcodes.
    private ScanditSDK mBarcodePicker;

    // Enter your Scandit SDK App key here.
    // Your Scandit SDK App key is available via your Scandit SDK web account.
 public static final String sScanditSdkAppKey = "hGRdHH8HEeOIc9g8+R+A2oPqEjchuxL3auRBiiy91Xs";


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // Initialize and start the bar code recognition.
        initializeAndStartBarcodeScanning();
    }

    @Override
    protected void onPause() {
        // When the activity is in the background immediately stop the
        // scanning to save resources and free the camera.
        mBarcodePicker.stopScanning();

        super.onPause();
    }

    @Override
    protected void onResume() {
        // Once the activity is in the foreground again, restart scanning.
        mBarcodePicker.startScanning();
        super.onResume();
    }

    /**
     * Initializes and starts the bar code scanning.
     */
    public void initializeAndStartBarcodeScanning() {
        // Switch to full screen.
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                             WindowManager.LayoutParams.FLAG_FULLSCREEN);
        requestWindowFeature(Window.FEATURE_NO_TITLE);

        // We instantiate the automatically adjusting barcode picker that will
        // choose the correct picker to instantiate. Be aware that this picker
        // should only be instantiated if the picker is shown full screen as the
        // legacy picker will rotate the orientation and not properly work in
        // non-fullscreen.
        ScanditSDKAutoAdjustingBarcodePicker picker = new ScanditSDKAutoAdjustingBarcodePicker(
                    this, sScanditSdkAppKey, ScanditSDKAutoAdjustingBarcodePicker.CAMERA_FACING_BACK);

        // Add both views to activity, with the scan GUI on top.
        setContentView(picker);
        mBarcodePicker = picker;

        // Register listener, in order to be notified about relevant events
        // (e.g. a successfully scanned bar code).
        mBarcodePicker.getOverlayView().addListener(this);

        // Show a search bar in the scan user interface.
        mBarcodePicker.getOverlayView().showSearchBar(true);
    }

    /**
     *  Called when a barcode has been decoded successfully.
     *
     *  @param barcode Scanned barcode content.
     *  @param symbology Scanned barcode symbology.
     */
    public void didScanBarcode(String barcode, String symbology) {
        // Remove non-relevant characters that might be displayed as rectangles
        // on some devices. Be aware that you normally do not need to do this.
        // Only special GS1 code formats contain such characters.
        String cleanedBarcode = "";
        for (int i = 0 ; i < barcode.length(); i++) {
            if (barcode.charAt(i) > 30) {
                cleanedBarcode += barcode.charAt(i);
            }
        }

        Toast.makeText(this, symbology + ": " + cleanedBarcode, Toast.LENGTH_LONG).show();

//INTENT PASSBACK
        Intent returnIntent = new Intent();
        returnIntent.putExtra("SCAN_RESULT",cleanedBarcode);
        setResult(RESULT_OK,returnIntent);
        finish();
    }

    /**
     * Called when the user entered a bar code manually.
     *
     * @param entry The information entered by the user.
     */
    public void didManualSearch(String entry) {
      Toast.makeText(this, "User entered: " + entry, Toast.LENGTH_LONG).show();
    }

    @Override
    public void didCancel() {
        mBarcodePicker.stopScanning();
        finish();
    }

    @Override
    public void onBackPressed() {
        mBarcodePicker.stopScanning();
        finish();
    }
}

Java Source Code List

• Back to Development/sdk  ↑