@Override protected void onResume() { super.onResume(); // CameraManager必须在这里初始化,而不是在onCreate()中。 // 这是必须的,因为当我们第一次进入时需要显示帮助页,我们并不想打开Camera,测量屏幕大小 // 当扫描框的尺寸不正确时会出现bug cameraManager = new CameraManager(getApplication()); viewfinderView = (ViewfinderView) findViewById(R.id.viewfinder_view); viewfinderView.setCameraManager(cameraManager); handler = null; SurfaceView surfaceView = (SurfaceView) findViewById(R.id.preview_view); SurfaceHolder surfaceHolder = surfaceView.getHolder(); if (hasSurface) { // activity在paused时但不会stopped,因此surface仍旧存在; // surfaceCreated()不会调用,因此在这里初始化camera initCamera(surfaceHolder); } else { // 重置callback,等待surfaceCreated()来初始化camera surfaceHolder.addCallback(this); } beepManager.updatePrefs(); inactivityTimer.onResume(); source = IntentSource.NONE; decodeFormats = null; characterSet = null; }
@Override protected void onResume() { super.onResume(); // CameraManager must be initialized here, not in onCreate(). This is necessary because we don't // want to open the camera driver and measure the screen size if we're going to show the help on // first launch. That led to bugs where the scanning rectangle was the wrong size and partially // off screen. cameraManager = new CameraManager(getApplication()); viewfinderView = (ViewfinderView) findViewById(fakeR.getId("id", "viewfinder_view")); viewfinderView.setCameraManager(cameraManager); resultView = findViewById(fakeR.getId("id", "result_view")); statusView = (TextView) findViewById(fakeR.getId("id", "status_view")); handler = null; lastResult = null; resetStatusView(); SurfaceView surfaceView = (SurfaceView) findViewById(fakeR.getId("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); } beepManager.updatePrefs(); inactivityTimer.onResume(); Intent intent = getIntent(); SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this); copyToClipboard = prefs.getBoolean(PreferencesActivity.KEY_COPY_TO_CLIPBOARD, true) && (intent == null || intent.getBooleanExtra(Intents.Scan.SAVE_HISTORY, true)); // source = IntentSource.NONE; source = IntentSource.NATIVE_APP_INTENT; decodeFormats = null; characterSet = null; if (intent != null) { String action = intent.getAction(); String dataString = intent.getDataString(); if (Intents.Scan.ACTION.equals(action)) { // Scan the formats the intent requested, and return the result to the calling activity. source = IntentSource.NATIVE_APP_INTENT; decodeFormats = DecodeFormatManager.parseDecodeFormats(intent); if (intent.hasExtra(Intents.Scan.WIDTH) && intent.hasExtra(Intents.Scan.HEIGHT)) { int width = intent.getIntExtra(Intents.Scan.WIDTH, 0); int height = intent.getIntExtra(Intents.Scan.HEIGHT, 0); if (width > 0 && height > 0) { cameraManager.setManualFramingRect(width, height); } } String customPromptMessage = intent.getStringExtra(Intents.Scan.PROMPT_MESSAGE); if (customPromptMessage != null) { statusView.setText(customPromptMessage); } } else if (dataString != null && dataString.contains(PRODUCT_SEARCH_URL_PREFIX) && dataString.contains(PRODUCT_SEARCH_URL_SUFFIX)) { // Scan only products and send the result to mobile Product Search. source = IntentSource.PRODUCT_SEARCH_LINK; sourceUrl = dataString; decodeFormats = DecodeFormatManager.PRODUCT_FORMATS; } else if (isZXingURL(dataString)) { // Scan formats requested in query string (all formats if none specified). // If a return URL is specified, send the results there. Otherwise, handle it ourselves. source = IntentSource.ZXING_LINK; sourceUrl = dataString; Uri inputUri = Uri.parse(sourceUrl); returnUrlTemplate = inputUri.getQueryParameter(RETURN_URL_PARAM); returnRaw = inputUri.getQueryParameter(RAW_PARAM) != null; decodeFormats = DecodeFormatManager.parseDecodeFormats(inputUri); } characterSet = intent.getStringExtra(Intents.Scan.CHARACTER_SET); } }
@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); } Intent intent = getIntent(); String action = intent == null ? null : intent.getAction(); String dataString = intent == null ? null : intent.getDataString(); if (intent != null && action != null) { if (action.equals(Intents.Scan.ACTION)) { // Scan the formats the intent requested, and return the result to the calling activity. source = Source.NATIVE_APP_INTENT; decodeFormats = DecodeFormatManager.parseDecodeFormats(intent); // if (intent.hasExtra(Intents.Scan.WIDTH) && intent.hasExtra(Intents.Scan.HEIGHT)) { // int width = intent.getIntExtra(Intents.Scan.WIDTH, 0); // int height = intent.getIntExtra(Intents.Scan.HEIGHT, 0); // if (width > 0 && height > 0) { // CameraManager.get().setManualFramingRect(width, height); // } // } } else if (dataString != null && dataString.contains(PRODUCT_SEARCH_URL_PREFIX) && dataString.contains(PRODUCT_SEARCH_URL_SUFFIX)) { // Scan only products and send the result to mobile Product Search. source = Source.PRODUCT_SEARCH_LINK; sourceUrl = dataString; decodeFormats = DecodeFormatManager.PRODUCT_FORMATS; } else if (dataString != null && dataString.startsWith(ZXING_URL)) { // Scan formats requested in query string (all formats if none specified). // If a return URL is specified, send the results there. Otherwise, handle it ourselves. source = Source.ZXING_LINK; sourceUrl = dataString; Uri inputUri = Uri.parse(sourceUrl); returnUrlTemplate = inputUri.getQueryParameter(RETURN_URL_PARAM); decodeFormats = DecodeFormatManager.parseDecodeFormats(inputUri); } else { // Scan all formats and handle the results ourselves (launched from Home). source = Source.NONE; decodeFormats = null; } characterSet = intent.getStringExtra(Intents.Scan.CHARACTER_SET); } else { source = Source.NONE; decodeFormats = null; characterSet = null; } SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this); copyToClipboard = prefs.getBoolean(PreferencesActivity.KEY_COPY_TO_CLIPBOARD, true) && (intent == null || intent.getBooleanExtra(Intents.Scan.SAVE_HISTORY, true)); // beepManager.updatePrefs(); inactivityTimer.onResume(); }