org.openmidaas.app.activities.ScanFragment.java Source code

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Here is the source code for org.openmidaas.app.activities.ScanFragment.java

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/*******************************************************************************
 * Copyright 2013 SecureKey Technologies Inc.
 * 
 * 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 org.openmidaas.app.activities;

import org.openmidaas.app.R;
import org.openmidaas.app.common.Constants;
import org.openmidaas.app.common.DialogUtils;
import org.openmidaas.app.common.Intents;
import org.openmidaas.app.common.Logger;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.Fragment;

public class ScanFragment extends Fragment {
    private final int SCAN_REQUEST = 65534;
    Context context;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        context = getActivity();
        showQRCodeScanner();
    }

    private void showQRCodeScanner() {
        // check to see if a rear-camera is available
        if (getActivity().getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA)) {
            Intent intentScan = new Intent(Intents.QR_CODE_INIT_INTENT);
            intentScan.putExtra("SCAN_MODE", "QR_CODE_MODE");
            intentScan.putExtra("SAVE_HISTORY", false);
            try {
                startActivityForResult(intentScan, SCAN_REQUEST);
            } catch (ActivityNotFoundException error) {
                showNoQRCodeScannersPresentDialog();
            }
        } else {
            showNoBackCameraPresentDialog();
        }
    }

    private void showNoQRCodeScannersPresentDialog() {
        AlertDialog.Builder dlBuilder = new AlertDialog.Builder(getActivity());
        dlBuilder.setTitle(R.string.no_qrcode_dialog_title);
        dlBuilder.setMessage(R.string.no_qrcode_dialog_message);
        dlBuilder.setIcon(android.R.drawable.ic_dialog_alert);
        dlBuilder.setPositiveButton(R.string.install_button, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int whichButton) {
                Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(Constants.ZXING_MARKET));
                AlertDialog aDialog = (AlertDialog) dialog;
                try {

                    aDialog.getContext().startActivity(intent);
                } catch (ActivityNotFoundException e) {
                    intent = new Intent(Intent.ACTION_VIEW, Uri.parse(Constants.ZXING_DIRECT));
                    aDialog.getContext().startActivity(intent);
                }
            }
        });
        dlBuilder.setNegativeButton(R.string.cancel, null);
        dlBuilder.show();
    }

    private void showNoBackCameraPresentDialog() {
        DialogUtils.showNeutralButtonDialog(getActivity(), "Problem",
                getString(R.string.rear_camera_not_present_text));
    }

    public void onActivityResult(int requestCode, int resultCode, Intent intent) {
        if (requestCode == SCAN_REQUEST) {
            if (resultCode == Activity.RESULT_OK) {
                if (intent.getStringExtra("SCAN_RESULT") != null) {
                    Logger.debug(getClass(), intent.getStringExtra("SCAN_RESULT"));
                    ((MainTabActivity) getActivity()).processUrl(intent.getStringExtra("SCAN_RESULT"));
                } else {
                    DialogUtils.showNeutralButtonDialog(getActivity(), "Error", "Error in scan");
                }
            } else if (resultCode == Activity.RESULT_CANCELED) {
                Logger.debug(getClass(), "Scan cancelled");
            }
            //Setting the tab back to precious tab 
            ((MainTabActivity) getActivity()).mTabHost
                    .setCurrentTabByTag(((MainTabActivity) getActivity()).currentTab);
        }
    }
}