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Code Issues Actions Packages Projects Releases Wiki Activity

Added send barcode feature

Browse source 
git-svn-id: https://zxing.googlecode.com/svn/trunk@1274 59b500cc-1b3d-0410-9834-0bbf25fbcc57
This commit is contained in:
srowen 2010-04-03 23:57:46 +00:00
parent 43c3fed6b2
commit 3423422956
2 changed files with 95 additions and 18 deletions
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70
android/src/com/google/zxing/client/android/encode/EncodeActivity.java
View file

@ -16,6 +16,8 @@
package com.google.zxing.client.android.encode;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.WriterException;
import com.google.zxing.client.android.Intents;
import com.google.zxing.client.android.R;
@ -27,14 +29,23 @@ import android.content.DialogInterface.OnCancelListener;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.Environment;
import android.os.Message;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewTreeObserver.OnGlobalLayoutListener;
import android.widget.ImageView;
import android.widget.TextView;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
/**
* This class encodes data from an Intent into a QR code, and then displays it full screen so that
* another person can scan it with their device.
@ -42,6 +53,11 @@ import android.widget.TextView;
* @author dswitkin@google.com (Daniel Switkin)
*/
public final class EncodeActivity extends Activity {
private static final String TAG = EncodeActivity.class.getSimpleName();
private static final int SHARE_BARCODE_DIMENSION = 300;
private QRCodeEncoder qrCodeEncoder;
private ProgressDialog progressDialog;
private boolean firstLayout;
@ -86,7 +102,7 @@ public final class EncodeActivity extends Activity {
view.setImageBitmap(image);
TextView contents = (TextView) findViewById(R.id.contents_text_view);
contents.setText(qrCodeEncoder.getDisplayContents());
qrCodeEncoder = null;
//qrCodeEncoder = null;
break;
case R.id.encode_failed:
showErrorMessage(R.string.msg_encode_barcode_failed);
@ -123,6 +139,58 @@ public final class EncodeActivity extends Activity {
finish();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
menu.add(0, Menu.FIRST, 0, R.string.menu_share).setIcon(android.R.drawable.ic_menu_share);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (qrCodeEncoder == null) { // Odd
Log.w(TAG, "No existing barcode to send?");
return true;
}
Bitmap bitmap;
try {
bitmap = QRCodeEncoder.encodeAsBitmap(qrCodeEncoder.getContents(),
BarcodeFormat.QR_CODE,
SHARE_BARCODE_DIMENSION,
SHARE_BARCODE_DIMENSION);
} catch (WriterException we) {
Log.w(TAG, we.toString());
return true;
}
File barcodeFile;
try {
File bsRoot = new File(Environment.getExternalStorageDirectory(), "BarcodeScanner");
bsRoot.mkdir();
File barcodesRoot = new File(bsRoot, "barcodes");
barcodesRoot.mkdir();
barcodeFile = new File(barcodesRoot, "barcode-" + System.currentTimeMillis() + ".png");
barcodeFile.delete();
FileOutputStream fos = new FileOutputStream(barcodeFile);
bitmap.compress(Bitmap.CompressFormat.PNG, 0, fos);
fos.close();
} catch (IOException ioe) {
Log.w(TAG, ioe.toString());
return true;
}
Intent intent = new Intent(Intent.ACTION_SEND, Uri.parse("mailto:"));
intent.putExtra(Intent.EXTRA_SUBJECT, getString(R.string.app_name) + " - " + qrCodeEncoder.getTitle());
intent.putExtra(Intent.EXTRA_TEXT, qrCodeEncoder.getContents());
intent.putExtra(Intent.EXTRA_STREAM, Uri.parse("file://" + barcodeFile.getAbsolutePath()));
intent.setType("image/png");
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
startActivity(Intent.createChooser(intent, null));
return true;
}
@Override
protected void onResume() {
super.onResume();

43
android/src/com/google/zxing/client/android/encode/QRCodeEncoder.java
View file

@ -51,7 +51,7 @@ import java.io.InputStream;
*/
final class QRCodeEncoder {
private static final String TAG = "QRCodeEncoder";
private static final String TAG = QRCodeEncoder.class.getSimpleName();
private static final int WHITE = 0xFFFFFFFF;
private static final int BLACK = 0xFF000000;
@ -311,8 +311,31 @@ final class QRCodeEncoder {
}
}
static Bitmap encodeAsBitmap(String contents,
BarcodeFormat format,
int desiredWidth,
int desiredHeight) throws WriterException {
BitMatrix result = new MultiFormatWriter().encode(contents, format,
desiredWidth, desiredHeight);
int width = result.getWidth();
int height = result.getHeight();
int[] pixels = new int[width * height];
// All are 0, or black, by default
for (int y = 0; y < height; y++) {
int offset = y * width;
for (int x = 0; x < width; x++) {
pixels[offset + x] = result.get(x, y) ? BLACK : WHITE;
}
}
Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
return bitmap;
}
private static final class EncodeThread extends Thread {
private static final String TAG = "EncodeThread";
private static final String TAG = EncodeThread.class.getSimpleName();
private final String contents;
private final Handler handler;
@ -330,21 +353,7 @@ final class QRCodeEncoder {
@Override
public void run() {
try {
BitMatrix result = new MultiFormatWriter().encode(contents, format,
pixelResolution, pixelResolution);
int width = result.getWidth();
int height = result.getHeight();
int[] pixels = new int[width * height];
// All are 0, or black, by default
for (int y = 0; y < height; y++) {
int offset = y * width;
for (int x = 0; x < width; x++) {
pixels[offset + x] = result.get(x, y) ? BLACK : WHITE;
}
}
Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
Bitmap bitmap = encodeAsBitmap(contents, format, pixelResolution, pixelResolution);
Message message = Message.obtain(handler, R.id.encode_succeeded);
message.obj = bitmap;
message.sendToTarget();