/* * Copyright (C) 2008 ZXing authors * * 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 com.google.zxing.client.android; import com.google.zxing.BarcodeFormat; import com.google.zxing.Result; import com.google.zxing.ResultMetadataType; import com.google.zxing.ResultPoint; import com.google.zxing.client.android.camera.CameraManager; import com.rhomobile.rhodes.BaseActivity; import com.rhomobile.rhodes.R; import android.app.Activity; import android.app.AlertDialog; import android.content.DialogInterface; import android.content.Intent; import android.content.SharedPreferences; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.content.res.AssetFileDescriptor; import android.content.res.Configuration; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.Paint; import android.graphics.Rect; import android.media.AudioManager; import android.media.MediaPlayer; import android.media.MediaPlayer.OnCompletionListener; import android.net.Uri; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.os.Vibrator; import android.preference.PreferenceManager; import android.text.ClipboardManager; import android.util.Log; import android.util.TypedValue; import android.view.KeyEvent; import android.view.Menu; import android.view.MenuItem; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.view.View; import android.view.ViewGroup; import android.view.Window; import android.view.WindowManager; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.ImageView; import android.widget.TextView; import android.widget.Toast; import java.io.IOException; import java.text.DateFormat; import java.util.Date; import java.util.HashSet; import java.util.Map; import java.util.Set; import java.util.Vector; /** * The barcode reader activity itself. This is loosely based on the CameraPreview * example included in the Android SDK. * * @author dswitkin@google.com (Daniel Switkin) * @author Sean Owen */ public final class CaptureActivity extends BaseActivity implements SurfaceHolder.Callback { public static final String CAMERA_INDEX_EXTRA = "camera_index"; private static final String TAG = CaptureActivity.class.getSimpleName(); private static final int SHARE_ID = Menu.FIRST; private static final int HISTORY_ID = Menu.FIRST + 1; private static final int SETTINGS_ID = Menu.FIRST + 2; private static final int HELP_ID = Menu.FIRST + 3; private static final int ABOUT_ID = Menu.FIRST + 4; private static final long INTENT_RESULT_DURATION = 1500L; private static final long BULK_MODE_SCAN_DELAY_MS = 1000L; private static final float BEEP_VOLUME = 0.10f; private static final long VIBRATE_DURATION = 200L; private static final String PACKAGE_NAME = "com.google.zxing.client.android"; private static final String PRODUCT_SEARCH_URL_PREFIX = "http://www.google"; private static final String PRODUCT_SEARCH_URL_SUFFIX = "/m/products/scan"; private static final String ZXING_URL = "http://zxing.appspot.com/scan"; private static final String RETURN_CODE_PLACEHOLDER = "{CODE}"; private static final String RETURN_URL_PARAM = "ret"; private static final Set DISPLAYABLE_METADATA_TYPES; static { DISPLAYABLE_METADATA_TYPES = new HashSet(5); DISPLAYABLE_METADATA_TYPES.add(ResultMetadataType.ISSUE_NUMBER); DISPLAYABLE_METADATA_TYPES.add(ResultMetadataType.SUGGESTED_PRICE); DISPLAYABLE_METADATA_TYPES.add(ResultMetadataType.ERROR_CORRECTION_LEVEL); DISPLAYABLE_METADATA_TYPES.add(ResultMetadataType.POSSIBLE_COUNTRY); } private enum Source { NATIVE_APP_INTENT, PRODUCT_SEARCH_LINK, ZXING_LINK, NONE } private CaptureActivityHandler handler; private ViewfinderView viewfinderView; //private TextView statusView; private View resultView; private MediaPlayer mediaPlayer; private Result lastResult; private boolean hasSurface; private boolean playBeep = true; private boolean vibrate = false; private boolean copyToClipboard = false; private Source source; private String sourceUrl; private String returnUrlTemplate; private Vector decodeFormats; private String characterSet; private String versionName; //private HistoryManager historyManager; private InactivityTimer inactivityTimer; private Button mCancelButton = null; private Button mCancelButton2 = null; private Button mRetakeButton = null; private Button mOKButton = null; /** * When the beep has finished playing, rewind to queue up another one. */ private final OnCompletionListener beepListener = new OnCompletionListener() { public void onCompletion(MediaPlayer mediaPlayer) { mediaPlayer.seekTo(0); } }; ViewfinderView getViewfinderView() { return viewfinderView; } public Handler getHandler() { return handler; } @Override public void onCreate(Bundle icicle) { super.onCreate(icicle); Window window = getWindow(); window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); setContentView(R.layout.capture); int camera_index = 0; Intent intent = getIntent(); if (intent != null) { camera_index = intent.getIntExtra(CAMERA_INDEX_EXTRA, 0); } CameraManager.init(getApplication(), camera_index); viewfinderView = (ViewfinderView) findViewById(R.id.viewfinder_view); resultView = findViewById(R.id.result_view); //statusView = (TextView) findViewById(R.id.status_view); handler = null; lastResult = null; hasSurface = false; //historyManager = new HistoryManager(this); //historyManager.trimHistory(); inactivityTimer = new InactivityTimer(this); mCancelButton2 = (Button)findViewById(R.id.cancel_button_a); mCancelButton = (Button)findViewById(R.id.cancel_button); mRetakeButton = (Button)findViewById(R.id.retake_button); mOKButton = (Button)findViewById(R.id.ok_button); mCancelButton2.setOnClickListener( new OnClickListener() { public void onClick(View v) { onCancel(); }}); mCancelButton.setOnClickListener( new OnClickListener() { public void onClick(View v) { onCancel(); }}); mRetakeButton.setOnClickListener( new OnClickListener() { public void onClick(View v) { onRetake(); }}); mOKButton.setOnClickListener( new OnClickListener() { public void onClick(View v) { onOK(); }}); mCancelButton2.setVisibility(View.VISIBLE); showHelpOnFirstLaunch(); } public void onCancel() { finish(); com.rhomobile.barcode.Barcode.callCancelCallback(); } public void onRetake() { resetStatusView(); if (handler != null) { handler.sendEmptyMessage(R.id.restart_preview); } } public void onOK() { finish(); String res = null; if (lastResult != null) { res = lastResult.getText(); } com.rhomobile.barcode.Barcode.callOKCallback(res); } @Override protected void onResume() { super.onResume(); resetStatusView(); SurfaceView surfaceView = (SurfaceView) findViewById(R.id.preview_view); SurfaceHolder surfaceHolder = surfaceView.getHolder(); if (hasSurface) { // The activity was paused but not stopped, so the surface still exists. Therefore // surfaceCreated() won't be called, so init the camera here. initCamera(surfaceHolder); } else { // Install the callback and wait for surfaceCreated() to init the camera. surfaceHolder.addCallback(this); surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); } { source = Source.NONE; decodeFormats = null; characterSet = null; } //SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this); playBeep = true;//prefs.getBoolean(PreferencesActivity.KEY_PLAY_BEEP, true); if (playBeep) { // See if sound settings overrides this AudioManager audioService = (AudioManager) getSystemService(AUDIO_SERVICE); if (audioService.getRingerMode() != AudioManager.RINGER_MODE_NORMAL) { playBeep = false; } } //vibrate = prefs.getBoolean(PreferencesActivity.KEY_VIBRATE, false); //copyToClipboard = prefs.getBoolean(PreferencesActivity.KEY_COPY_TO_CLIPBOARD, true); initBeepSound(); } @Override protected void onPause() { super.onPause(); if (handler != null) { handler.quitSynchronously(); handler = null; } CameraManager.get().closeDriver(); } @Override protected void onDestroy() { inactivityTimer.shutdown(); super.onDestroy(); } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_BACK) { if (source == Source.NATIVE_APP_INTENT) { setResult(RESULT_CANCELED); onCancel(); return true; } else if ((source == Source.NONE || source == Source.ZXING_LINK) && lastResult != null) { onRetake(); return true; } } else if (keyCode == KeyEvent.KEYCODE_FOCUS || keyCode == KeyEvent.KEYCODE_CAMERA) { // Handle these events so they don't launch the Camera app return true; } return super.onKeyDown(keyCode, event); } @Override public void onConfigurationChanged(Configuration config) { // Do nothing, this is to prevent the activity from being restarted when the keyboard opens. super.onConfigurationChanged(config); } public void surfaceCreated(SurfaceHolder holder) { if (!hasSurface) { hasSurface = true; initCamera(holder); } } public void surfaceDestroyed(SurfaceHolder holder) { hasSurface = false; } public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { } /** * A valid barcode has been found, so give an indication of success and show the results. * * @param rawResult The contents of the barcode. * @param barcode A greyscale bitmap of the camera data which was decoded. */ public void handleDecode(Result rawResult, Bitmap barcode) { inactivityTimer.onActivity(); lastResult = rawResult; //historyManager.addHistoryItem(rawResult); if (barcode == null) { // This is from history -- no saved barcode handleDecodeInternally(rawResult, null); } else { playBeepSoundAndVibrate(); drawResultPoints(barcode, rawResult); handleDecodeInternally(rawResult, barcode); } } /** * Superimpose a line for 1D or dots for 2D to highlight the key features of the barcode. * * @param barcode A bitmap of the captured image. * @param rawResult The decoded results which contains the points to draw. */ private void drawResultPoints(Bitmap barcode, Result rawResult) { ResultPoint[] points = rawResult.getResultPoints(); if (points != null && points.length > 0) { Canvas canvas = new Canvas(barcode); Paint paint = new Paint(); paint.setColor(getResources().getColor(R.color.result_image_border)); paint.setStrokeWidth(3.0f); paint.setStyle(Paint.Style.STROKE); Rect border = new Rect(2, 2, barcode.getWidth() - 2, barcode.getHeight() - 2); canvas.drawRect(border, paint); paint.setColor(getResources().getColor(R.color.result_points)); if (points.length == 2) { paint.setStrokeWidth(4.0f); drawLine(canvas, paint, points[0], points[1]); } else if (points.length == 4 && (rawResult.getBarcodeFormat().equals(BarcodeFormat.UPC_A)) || (rawResult.getBarcodeFormat().equals(BarcodeFormat.EAN_13))) { // Hacky special case -- draw two lines, for the barcode and metadata drawLine(canvas, paint, points[0], points[1]); drawLine(canvas, paint, points[2], points[3]); } else { paint.setStrokeWidth(10.0f); for (ResultPoint point : points) { canvas.drawPoint(point.getX(), point.getY(), paint); } } } } private static void drawLine(Canvas canvas, Paint paint, ResultPoint a, ResultPoint b) { canvas.drawLine(a.getX(), a.getY(), b.getX(), b.getY(), paint); } // Put up our own UI for how to handle the decoded contents. private void handleDecodeInternally(Result rawResult, Bitmap barcode) { //statusView.setVisibility(View.GONE); viewfinderView.setVisibility(View.GONE); resultView.setVisibility(View.VISIBLE); ImageView barcodeImageView = (ImageView) findViewById(R.id.barcode_image_view); if (barcode != null) { barcodeImageView.setImageBitmap(barcode); } TextView contentsTextView = (TextView) findViewById(R.id.contents_text_view); CharSequence displayContents = rawResult.getText();// resultHandler.getDisplayContents(); contentsTextView.setText(displayContents); // Crudely scale betweeen 22 and 32 -- bigger font for shorter text int scaledSize = Math.max(22, 32 - displayContents.length() / 4); contentsTextView.setTextSize(TypedValue.COMPLEX_UNIT_SP, scaledSize); mCancelButton2.setVisibility(View.GONE); mCancelButton.setVisibility(View.VISIBLE); mRetakeButton.setVisibility(View.VISIBLE); mOKButton.setVisibility(View.VISIBLE); } // Briefly show the contents of the barcode, then handle the result outside Barcode Scanner. private void handleDecodeExternally(Result rawResult, Bitmap barcode) { } /** * We want the help screen to be shown automatically the first time a new version of the app is * run. The easiest way to do this is to check android:versionCode from the manifest, and compare * it to a value stored as a preference. */ private boolean showHelpOnFirstLaunch() { return false; } /** * Creates the beep MediaPlayer in advance so that the sound can be triggered with the least * latency possible. */ private void initBeepSound() { if (playBeep && mediaPlayer == null) { // The volume on STREAM_SYSTEM is not adjustable, and users found it too loud, // so we now play on the music stream. setVolumeControlStream(AudioManager.STREAM_MUSIC); mediaPlayer = new MediaPlayer(); mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC); mediaPlayer.setOnCompletionListener(beepListener); AssetFileDescriptor file = getResources().openRawResourceFd(R.raw.beep); try { mediaPlayer.setDataSource(file.getFileDescriptor(), file.getStartOffset(), file.getLength()); file.close(); mediaPlayer.setVolume(BEEP_VOLUME, BEEP_VOLUME); mediaPlayer.prepare(); } catch (IOException e) { mediaPlayer = null; } } } private void playBeepSoundAndVibrate() { if (playBeep && mediaPlayer != null) { mediaPlayer.start(); } if (vibrate) { Vibrator vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE); vibrator.vibrate(VIBRATE_DURATION); } } private void initCamera(SurfaceHolder surfaceHolder) { try { CameraManager.get().openDriver(surfaceHolder); } catch (IOException ioe) { Log.w(TAG, ioe); displayFrameworkBugMessageAndExit(); return; } catch (RuntimeException e) { // Barcode Scanner has seen crashes in the wild of this variety: // java.?lang.?RuntimeException: Fail to connect to camera service Log.w(TAG, "Unexpected error initializating camera", e); displayFrameworkBugMessageAndExit(); return; } if (handler == null) { handler = new CaptureActivityHandler(this, decodeFormats, characterSet); } } private void displayFrameworkBugMessageAndExit() { } private void resetStatusView() { resultView.setVisibility(View.GONE); //statusView.setText(R.string.msg_default_status); //statusView.setVisibility(View.VISIBLE); viewfinderView.setVisibility(View.VISIBLE); mCancelButton2.setVisibility(View.VISIBLE); mCancelButton.setVisibility(View.GONE); mRetakeButton.setVisibility(View.GONE); mOKButton.setVisibility(View.GONE); lastResult = null; } public void drawViewfinder() { viewfinderView.drawViewfinder(); } }