wpadebug: Add support for QR Code scanning and display via zxing
Enhance wpadebug application to support scanning and displaying of QR codes. This depends on a third-party source: zxing (https://github.com/zxing/zxing). Shell command to launch scanner/viewer via wpadebug is: >adb root >adb shell Scanner: >am start -n w1.fi.wpadebug/w1.fi.wpadebug.QrCodeScannerActivity Viewer: >am start -n w1.fi.wpadebug/w1.fi.wpadebug.QrCodeDisplayActivity QR code string input/output file would be generated in '/sdcard/wpadebug_qrdata.txt' in the device. Signed-off-by: Jouni Malinen <jouni@codeaurora.org>master
Purushottam Kushwaha
6 years ago
committed by
Jouni Malinen
parent
8f7a50a63e
commit
717f236dce
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<?xml version="1.0" encoding="utf-8"?>
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:orientation="vertical"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:gravity="center_horizontal">
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<ImageView
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android:id="@+id/qrCode"
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android:layout_width="350dp"
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android:layout_height="350dp"
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android:layout_marginTop="20dp"
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/>
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</LinearLayout>
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/*
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* wpadebug - wpa_supplicant and Wi-Fi debugging app for Android
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* Copyright (c) 2018, The Linux Foundation
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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package w1.fi.wpadebug;
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import android.app.Activity;
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import android.graphics.Bitmap;
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import android.os.Bundle;
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import android.text.TextUtils;
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import android.util.Log;
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import android.widget.ImageView;
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import com.google.zxing.BarcodeFormat;
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import com.google.zxing.MultiFormatWriter;
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import com.google.zxing.WriterException;
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import com.google.zxing.common.BitMatrix;
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.io.InputStreamReader;
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public class QrCodeDisplayActivity extends Activity {
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private static final String TAG = "wpadebug";
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private static final String FILE_NAME = "wpadebug_qrdata.txt";
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private ImageView imageView;
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// Below set of configs are used for QR code display window
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private final static int WHITE = 0xFFFFFFFF;
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private final static int BLACK = 0xFF000000;
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private final static int WIDTH = 400;
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private final static int HEIGHT = 400;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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// create imageview for this and attach to this activity.
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setContentView(R.layout.qrcode);
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imageView = (ImageView) findViewById(R.id.qrCode);
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String str = readFromFile(FILE_NAME);
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//Encode and launch qrcode now
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try {
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Bitmap bitmap = (TextUtils.isEmpty(str)) ? null : encodeAsBitmap(str);
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if (bitmap != null) {
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imageView.setImageBitmap(bitmap);
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} else {
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Log.e(TAG, "Failed to generate bitmap for uri=" + str);
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finish();
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}
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} catch (WriterException e) {
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e.printStackTrace();
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finish();
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}
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}
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private Bitmap encodeAsBitmap(String str) throws WriterException {
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BitMatrix result;
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try {
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result = new MultiFormatWriter().encode(str, BarcodeFormat.QR_CODE, WIDTH, HEIGHT, null);
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} catch (IllegalArgumentException iae) {
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// Unsupported format
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return null;
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}
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int width = result.getWidth();
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int height = result.getHeight();
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int[] pixels = new int[width * height];
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for (int y = 0; y < height; y++) {
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int offset = y * width;
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for (int x = 0; x < width; x++) {
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pixels[offset + x] = result.get(x, y) ? BLACK : WHITE;
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}
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}
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Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
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bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
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return bitmap;
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}
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private String readFromFile(String filePath) {
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try {
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FileInputStream fis = new FileInputStream(new File("/sdcard", filePath));
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BufferedReader br = new BufferedReader(new InputStreamReader(fis, "UTF-8"));
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StringBuilder sb = new StringBuilder();
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String line;
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while(( line = br.readLine()) != null ) {
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sb.append( line );
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sb.append( '\n' );
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}
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return sb.toString();
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}
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catch (FileNotFoundException e) {
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Log.e(TAG, "File not found: " + e.toString());
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} catch (IOException e) {
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Log.e(TAG, "Can not read file: " + e.toString());
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}
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return null;
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}
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}
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@ -0,0 +1,75 @@
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/*
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* wpadebug - wpa_supplicant and Wi-Fi debugging app for Android
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* Copyright (c) 2018, The Linux Foundation
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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package w1.fi.wpadebug;
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import android.app.Activity;
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import android.content.ActivityNotFoundException;
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import android.content.Intent;
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import android.os.Bundle;
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import android.util.Log;
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import android.widget.Toast;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.OutputStreamWriter;
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public class QrCodeScannerActivity extends Activity {
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private static final String TAG = "wpadebug";
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private static final String RESULT = "SCAN_RESULT";
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private static final String FILE_NAME = "wpadebug_qrdata.txt";
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private static final String ACTION = "com.google.zxing.client.android.SCAN";
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private static final int QRCODE = 1;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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Intent intent = new Intent();
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intent.setAction(ACTION);
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try {
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startActivityForResult(intent, QRCODE);
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} catch (ActivityNotFoundException e) {
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Log.e(TAG, "No QR code scanner found with name=" + ACTION);
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Toast.makeText(QrCodeScannerActivity.this, "QR code scanner not found", Toast.LENGTH_SHORT).show();
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finish();
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}
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}
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@Override
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protected void onActivityResult(int requestCode, int resultCode, Intent data) {
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if (requestCode == QRCODE && resultCode == RESULT_OK) {
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writeToFile(data.getStringExtra(RESULT));
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finish();
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}
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}
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public void writeToFile(String data)
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{
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File file = new File("/sdcard", FILE_NAME);
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try
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{
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file.createNewFile();
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FileOutputStream fOut = new FileOutputStream(file);
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OutputStreamWriter myOutWriter = new OutputStreamWriter(fOut);
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myOutWriter.append(data);
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myOutWriter.close();
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fOut.flush();
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fOut.close();
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}
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catch (IOException e)
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{
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Log.e(TAG, "File write failed: " + e.toString());
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}
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}
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}
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