939 lines
37 KiB
Java
939 lines
37 KiB
Java
package com.king.zxing;
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/*
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* Copyright (C) 2008 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import android.app.Activity;
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import android.content.Intent;
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import android.content.pm.ActivityInfo;
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import android.content.res.Configuration;
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import android.graphics.Bitmap;
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import android.graphics.Rect;
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import android.graphics.RectF;
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import android.hardware.Camera;
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import android.net.Uri;
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import android.os.Bundle;
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import android.os.Handler;
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import android.os.Message;
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import android.util.Log;
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import android.view.KeyEvent;
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import android.view.MotionEvent;
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import android.view.Surface;
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import android.view.SurfaceHolder;
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import android.view.SurfaceView;
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import android.view.View;
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import android.view.Window;
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import android.view.WindowManager;
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import com.google.zxing.BarcodeFormat;
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import com.google.zxing.DecodeHintType;
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import com.google.zxing.Result;
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import com.king.zxing.camera.CameraManager;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.List;
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import java.util.Map;
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/**
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* This activity opens the camera and does the actual scanning on a background thread. It draws a
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* viewfinder to help the user place the barcode correctly, shows feedback as the image processing
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* is happening, and then overlays the results when a scan is successful.
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*
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* @author dswitkin@google.com (Daniel Switkin)
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* @author Sean Owen
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*/
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public class CaptureActivity extends Activity implements SurfaceHolder.Callback {
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public static final String KEY_RESULT = Intents.Scan.RESULT;
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private static final String TAG = CaptureActivity.class.getSimpleName();
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// private static final long DEFAULT_INTENT_RESULT_DURATION_MS = 1500L;
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// private static final long BULK_MODE_SCAN_DELAY_MS = 1000L;
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private static final int DEVIATION = 6;
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private static final String[] ZXING_URLS = { "http://zxing.appspot.com/scan", "zxing://scan/" };
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// private static final Collection<ResultMetadataType> DISPLAYABLE_METADATA_TYPES =
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// EnumSet.of(ResultMetadataType.ISSUE_NUMBER,
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// ResultMetadataType.SUGGESTED_PRICE,
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// ResultMetadataType.ERROR_CORRECTION_LEVEL,
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// ResultMetadataType.POSSIBLE_COUNTRY);
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private CameraManager cameraManager;
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private CaptureActivityHandler handler;
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private Result savedResultToShow;
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private ViewfinderView viewfinderView;
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// private TextView statusView;
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// private View resultView;
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private Result lastResult;
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private boolean hasSurface;
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// private boolean copyToClipboard;
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// private IntentSource source;
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// private String sourceUrl;
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// private ScanFromWebPageManager scanFromWebPageManager;
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private Collection<BarcodeFormat> decodeFormats;
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private Map<DecodeHintType,?> decodeHints;
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private String characterSet;
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// private HistoryManager historyManager;
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private InactivityTimer inactivityTimer;
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private BeepManager beepManager;
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private AmbientLightManager ambientLightManager;
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/**
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* 是否支持缩放（变焦），默认支持
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*/
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private boolean isZoom = true;
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private float oldDistance;
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public ViewfinderView getViewfinderView() {
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return viewfinderView;
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}
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public Handler getHandler() {
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return handler;
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}
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public CameraManager getCameraManager() {
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return cameraManager;
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}
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public BeepManager getBeepManager() {
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return beepManager;
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}
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@Override
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public void onCreate(Bundle icicle) {
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super.onCreate(icicle);
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Window window = getWindow();
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window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
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setContentView(getLayoutId());
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hasSurface = false;
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inactivityTimer = new InactivityTimer(this);
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beepManager = new BeepManager(this);
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ambientLightManager = new AmbientLightManager(this);
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// PreferenceManager.setDefaultValues(this, R.xml.preferences, false);
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}
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public int getLayoutId(){
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return R.layout.capture;
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}
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public int getViewFinderViewId(){
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return R.id.viewfinder_view;
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}
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public int getPreviewViewId(){
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return R.id.preview_view;
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}
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/**
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* 扫码后声音与震动管理里入口
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* @return true表示播放和震动，是否播放与震动还得看{@link BeepManager}
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*/
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public boolean isBeepSoundAndVibrate(){
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return true;
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}
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@Override
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protected void onResume() {
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super.onResume();
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// historyManager must be initialized here to update the history preference
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// historyManager = new HistoryManager(this);
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// historyManager.trimHistory();
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// CameraManager must be initialized here, not in onCreate(). This is necessary because we don't
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// want to open the camera driver and measure the screen size if we're going to show the help on
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// first launch. That led to bugs where the scanning rectangle was the wrong size and partially
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// off screen.
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cameraManager = new CameraManager(getApplication());
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viewfinderView = findViewById(getViewFinderViewId());
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viewfinderView.setCameraManager(cameraManager);
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// resultView = findViewById(R.id.result_view);
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// statusView = findViewById(R.id.status_view);
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handler = null;
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lastResult = null;
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if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
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setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
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} else {
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setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
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}
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resetStatusView();
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beepManager.updatePrefs();
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ambientLightManager.start(cameraManager);
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inactivityTimer.onResume();
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Intent intent = getIntent();
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// copyToClipboard = prefs.getBoolean(Preferences.KEY_COPY_TO_CLIPBOARD, true)
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// && (intent == null || intent.getBooleanExtra(Intents.Scan.SAVE_HISTORY, true));
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//
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// source = IntentSource.NONE;
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// sourceUrl = null;
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// scanFromWebPageManager = null;
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decodeFormats = null;
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characterSet = null;
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if (intent != null) {
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String action = intent.getAction();
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String dataString = intent.getDataString();
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if (Intents.Scan.ACTION.equals(action)) {
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// Scan the formats the intent requested, and return the result to the calling activity.
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// source = IntentSource.NATIVE_APP_INTENT;
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decodeFormats = DecodeFormatManager.parseDecodeFormats(intent);
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decodeHints = DecodeHintManager.parseDecodeHints(intent);
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if (intent.hasExtra(Intents.Scan.WIDTH) && intent.hasExtra(Intents.Scan.HEIGHT)) {
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int width = intent.getIntExtra(Intents.Scan.WIDTH, 0);
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int height = intent.getIntExtra(Intents.Scan.HEIGHT, 0);
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if (width > 0 && height > 0) {
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cameraManager.setManualFramingRect(width, height);
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}
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}
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if (intent.hasExtra(Intents.Scan.CAMERA_ID)) {
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int cameraId = intent.getIntExtra(Intents.Scan.CAMERA_ID, -1);
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if (cameraId >= 0) {
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cameraManager.setManualCameraId(cameraId);
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}
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}
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// String customPromptMessage = intent.getStringExtra(Intents.Scan.PROMPT_MESSAGE);
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// if (customPromptMessage != null) {
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// statusView.setText(customPromptMessage);
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// }
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} else if (dataString != null &&
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dataString.contains("http://www.google") &&
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dataString.contains("/m/products/scan")) {
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// Scan only products and send the result to mobile Product Search.
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// source = IntentSource.PRODUCT_SEARCH_LINK;
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// sourceUrl = dataString;
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decodeFormats = DecodeFormatManager.PRODUCT_FORMATS;
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} else if (isZXingURL(dataString)) {
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// Scan formats requested in query string (all formats if none specified).
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// If a return URL is specified, send the results there. Otherwise, handle it ourselves.
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// source = IntentSource.ZXING_LINK;
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// sourceUrl = dataString;
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Uri inputUri = Uri.parse(dataString);
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// scanFromWebPageManager = new ScanFromWebPageManager(inputUri);
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decodeFormats = DecodeFormatManager.parseDecodeFormats(inputUri);
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// Allow a sub-set of the hints to be specified by the caller.
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decodeHints = DecodeHintManager.parseDecodeHints(inputUri);
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}
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characterSet = intent.getStringExtra(Intents.Scan.CHARACTER_SET);
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}
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SurfaceView surfaceView = findViewById(getPreviewViewId());
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SurfaceHolder surfaceHolder = surfaceView.getHolder();
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if (hasSurface) {
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// The activity was paused but not stopped, so the surface still exists. Therefore
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// surfaceCreated() won't be called, so init the camera here.
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initCamera(surfaceHolder);
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} else {
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// Install the callback and wait for surfaceCreated() to init the camera.
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surfaceHolder.addCallback(this);
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}
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}
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// private int getCurrentOrientation() {
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// int rotation = getWindowManager().getDefaultDisplay().getRotation();
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// if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE) {
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// switch (rotation) {
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// case Surface.ROTATION_0:
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// case Surface.ROTATION_90:
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// return ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;
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// default:
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// return ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE;
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// }
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// } else {
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// switch (rotation) {
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// case Surface.ROTATION_0:
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// case Surface.ROTATION_270:
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// return ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;
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// default:
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// return ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT;
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// }
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// }
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// }
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private static boolean isZXingURL(String dataString) {
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if (dataString == null) {
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return false;
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}
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for (String url : ZXING_URLS) {
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if (dataString.startsWith(url)) {
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return true;
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}
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}
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return false;
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}
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@Override
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protected void onPause() {
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if (handler != null) {
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handler.quitSynchronously();
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handler = null;
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}
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inactivityTimer.onPause();
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ambientLightManager.stop();
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beepManager.close();
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cameraManager.closeDriver();
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//historyManager = null; // Keep for onActivityResult
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if (!hasSurface) {
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SurfaceView surfaceView = findViewById(R.id.preview_view);
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SurfaceHolder surfaceHolder = surfaceView.getHolder();
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surfaceHolder.removeCallback(this);
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}
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super.onPause();
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}
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@Override
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protected void onDestroy() {
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inactivityTimer.shutdown();
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super.onDestroy();
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}
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@Override
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public boolean onKeyDown(int keyCode, KeyEvent event) {
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switch (keyCode) {
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case KeyEvent.KEYCODE_BACK:
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// if (source == IntentSource.NATIVE_APP_INTENT) {
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// setResult(RESULT_CANCELED);
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// finish();
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// return true;
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// }
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// if ((source == IntentSource.NONE || source == IntentSource.ZXING_LINK) && lastResult != null) {
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// restartPreviewAfterDelay(0L);
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// return true;
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// }
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break;
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case KeyEvent.KEYCODE_FOCUS:
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case KeyEvent.KEYCODE_CAMERA:
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// Handle these events so they don't launch the Camera app
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return true;
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// Use volume up/down to turn on light
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case KeyEvent.KEYCODE_VOLUME_DOWN:
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cameraManager.setTorch(false);
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return true;
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case KeyEvent.KEYCODE_VOLUME_UP:
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cameraManager.setTorch(true);
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return true;
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}
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return super.onKeyDown(keyCode, event);
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}
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// @Override
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// public boolean onCreateOptionsMenu(Menu menu) {
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// MenuInflater menuInflater = getMenuInflater();
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// menuInflater.inflate(R.menu.capture, menu);
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// return super.onCreateOptionsMenu(menu);
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// }
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//
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// @Override
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// public boolean onOptionsItemSelected(MenuItem item) {
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// Intent intent = new Intent(Intent.ACTION_VIEW);
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// intent.addFlags(Intents.FLAG_NEW_DOC);
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// switch (item.getItemId()) {
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// case R.id.menu_share:
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// intent.setClassName(this, ShareActivity.class.getName());
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// startActivity(intent);
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// break;
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// case R.id.menu_history:
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// intent.setClassName(this, HistoryActivity.class.getName());
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// startActivityForResult(intent, HISTORY_REQUEST_CODE);
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// break;
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// case R.id.menu_settings:
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// intent.setClassName(this, PreferencesActivity.class.getName());
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// startActivity(intent);
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// break;
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// case R.id.menu_help:
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// intent.setClassName(this, HelpActivity.class.getName());
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// startActivity(intent);
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// break;
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// default:
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// return super.onOptionsItemSelected(item);
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// }
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// return true;
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// }
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// @Override
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// public void onActivityResult(int requestCode, int resultCode, Intent intent) {
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// if (resultCode == RESULT_OK && requestCode == HISTORY_REQUEST_CODE && historyManager != null) {
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// int itemNumber = intent.getIntExtra(Intents.History.ITEM_NUMBER, -1);
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// if (itemNumber >= 0) {
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// HistoryItem historyItem = historyManager.buildHistoryItem(itemNumber);
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// decodeOrStoreSavedBitmap(null, historyItem.getResult());
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// }
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// }
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// }
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private void decodeOrStoreSavedBitmap(Bitmap bitmap, Result result) {
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// Bitmap isn't used yet -- will be used soon
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if (handler == null) {
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savedResultToShow = result;
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} else {
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if (result != null) {
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savedResultToShow = result;
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}
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if (savedResultToShow != null) {
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Message message = Message.obtain(handler, R.id.decode_succeeded, savedResultToShow);
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handler.sendMessage(message);
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}
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savedResultToShow = null;
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}
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}
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@Override
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public void surfaceCreated(SurfaceHolder holder) {
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if (holder == null) {
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Log.e(TAG, "*** WARNING *** surfaceCreated() gave us a null surface!");
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}
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if (!hasSurface) {
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hasSurface = true;
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initCamera(holder);
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}
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}
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@Override
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public void surfaceDestroyed(SurfaceHolder holder) {
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hasSurface = false;
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}
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@Override
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public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
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// do nothing
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}
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/**
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* A valid barcode has been found, so give an indication of success and show the results.
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*
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* @param rawResult The contents of the barcode.
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* @param scaleFactor amount by which thumbnail was scaled
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* @param barcode A greyscale bitmap of the camera data which was decoded.
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*/
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public void handleDecode(Result rawResult, Bitmap barcode, float scaleFactor) {
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inactivityTimer.onActivity();
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lastResult = rawResult;
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if(isBeepSoundAndVibrate()){
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beepManager.playBeepSoundAndVibrate();
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}
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String resultString = rawResult.getText();
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Intent intent = new Intent();
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intent.putExtra(KEY_RESULT,resultString);
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setResult(RESULT_OK,intent);
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finish();
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// ResultHandler resultHandler = ResultHandlerFactory.makeResultHandler(this, rawResult);
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// boolean fromLiveScan = barcode != null;
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// if (fromLiveScan) {
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//// historyManager.addHistoryItem(rawResult, resultHandler);
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// // Then not from history, so beep/vibrate and we have an image to draw on
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// beepManager.playBeepSoundAndVibrate();
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// drawResultPoints(barcode, scaleFactor, rawResult);
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// }
|
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// switch (source) {
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// case NATIVE_APP_INTENT:
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// case PRODUCT_SEARCH_LINK:
|
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// handleDecodeExternally(rawResult, resultHandler, barcode);
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// break;
|
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// case ZXING_LINK:
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// if (scanFromWebPageManager == null || !scanFromWebPageManager.isScanFromWebPage()) {
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// handleDecodeInternally(rawResult, resultHandler, barcode);
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// } else {
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// handleDecodeExternally(rawResult, resultHandler, barcode);
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// }
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// break;
|
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// case NONE:
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// SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
|
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// if (fromLiveScan && prefs.getBoolean(PreferencesActivity.KEY_BULK_MODE, false)) {
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// Toast.makeText(getApplicationContext(),
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// getResources().getString(R.string.msg_bulk_mode_scanned) + " (" + rawResult.getText() + ')',
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// Toast.LENGTH_SHORT).show();
|
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// maybeSetClipboard(resultHandler);
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// // Wait a moment or else it will scan the same barcode continuously about 3 times
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// restartPreviewAfterDelay(BULK_MODE_SCAN_DELAY_MS);
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// } else {
|
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// handleDecodeInternally(rawResult, resultHandler, barcode);
|
||
// }
|
||
// break;
|
||
// }
|
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}
|
||
|
||
// /**
|
||
// * 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 scaleFactor amount by which thumbnail was scaled
|
||
// * @param rawResult The decoded results which contains the points to draw.
|
||
// */
|
||
// private void drawResultPoints(Bitmap barcode, float scaleFactor, 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_points));
|
||
// if (points.length == 2) {
|
||
// paint.setStrokeWidth(4.0f);
|
||
// drawLine(canvas, paint, points[0], points[1], scaleFactor);
|
||
// } else if (points.length == 4 &&
|
||
// (rawResult.getBarcodeFormat() == BarcodeFormat.UPC_A ||
|
||
// rawResult.getBarcodeFormat() == BarcodeFormat.EAN_13)) {
|
||
// // Hacky special case -- draw two lines, for the barcode and metadata
|
||
// drawLine(canvas, paint, points[0], points[1], scaleFactor);
|
||
// drawLine(canvas, paint, points[2], points[3], scaleFactor);
|
||
// } else {
|
||
// paint.setStrokeWidth(10.0f);
|
||
// for (ResultPoint point : points) {
|
||
// if (point != null) {
|
||
// canvas.drawPoint(scaleFactor * point.getX(), scaleFactor * point.getY(), paint);
|
||
// }
|
||
// }
|
||
// }
|
||
// }
|
||
// }
|
||
//
|
||
// private static void drawLine(Canvas canvas, Paint paint, ResultPoint a, ResultPoint b, float scaleFactor) {
|
||
// if (a != null && b != null) {
|
||
// canvas.drawLine(scaleFactor * a.getX(),
|
||
// scaleFactor * a.getY(),
|
||
// scaleFactor * b.getX(),
|
||
// scaleFactor * b.getY(),
|
||
// paint);
|
||
// }
|
||
// }
|
||
//
|
||
// // Put up our own UI for how to handle the decoded contents.
|
||
// private void handleDecodeInternally(Result rawResult, ResultHandler resultHandler, Bitmap barcode) {
|
||
//
|
||
// maybeSetClipboard(resultHandler);
|
||
//
|
||
// SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
|
||
//
|
||
// if (resultHandler.getDefaultButtonID() != null && prefs.getBoolean(PreferencesActivity.KEY_AUTO_OPEN_WEB, false)) {
|
||
// resultHandler.handleButtonPress(resultHandler.getDefaultButtonID());
|
||
// return;
|
||
// }
|
||
//
|
||
// 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(BitmapFactory.decodeResource(getResources(),
|
||
// R.drawable.launcher_icon));
|
||
// } else {
|
||
// barcodeImageView.setImageBitmap(barcode);
|
||
// }
|
||
//
|
||
// TextView formatTextView = (TextView) findViewById(R.id.format_text_view);
|
||
// formatTextView.setText(rawResult.getBarcodeFormat().toString());
|
||
//
|
||
// TextView typeTextView = (TextView) findViewById(R.id.type_text_view);
|
||
// typeTextView.setText(resultHandler.getType().toString());
|
||
//
|
||
// DateFormat formatter = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT);
|
||
// TextView timeTextView = (TextView) findViewById(R.id.time_text_view);
|
||
// timeTextView.setText(formatter.format(rawResult.getTimestamp()));
|
||
//
|
||
//
|
||
// TextView metaTextView = (TextView) findViewById(R.id.meta_text_view);
|
||
// View metaTextViewLabel = findViewById(R.id.meta_text_view_label);
|
||
// metaTextView.setVisibility(View.GONE);
|
||
// metaTextViewLabel.setVisibility(View.GONE);
|
||
// Map<ResultMetadataType,Object> metadata = rawResult.getResultMetadata();
|
||
// if (metadata != null) {
|
||
// StringBuilder metadataText = new StringBuilder(20);
|
||
// for (Map.Entry<ResultMetadataType,Object> entry : metadata.entrySet()) {
|
||
// if (DISPLAYABLE_METADATA_TYPES.contains(entry.getKey())) {
|
||
// metadataText.append(entry.getValue()).append('\n');
|
||
// }
|
||
// }
|
||
// if (metadataText.length() > 0) {
|
||
// metadataText.setLength(metadataText.length() - 1);
|
||
// metaTextView.setText(metadataText);
|
||
// metaTextView.setVisibility(View.VISIBLE);
|
||
// metaTextViewLabel.setVisibility(View.VISIBLE);
|
||
// }
|
||
// }
|
||
//
|
||
// CharSequence displayContents = resultHandler.getDisplayContents();
|
||
// TextView contentsTextView = (TextView) findViewById(R.id.contents_text_view);
|
||
// contentsTextView.setText(displayContents);
|
||
// int scaledSize = Math.max(22, 32 - displayContents.length() / 4);
|
||
// contentsTextView.setTextSize(TypedValue.COMPLEX_UNIT_SP, scaledSize);
|
||
//
|
||
// TextView supplementTextView = (TextView) findViewById(R.id.contents_supplement_text_view);
|
||
// supplementTextView.setText("");
|
||
// supplementTextView.setOnClickListener(null);
|
||
// if (PreferenceManager.getDefaultSharedPreferences(this).getBoolean(
|
||
// PreferencesActivity.KEY_SUPPLEMENTAL, true)) {
|
||
// SupplementalInfoRetriever.maybeInvokeRetrieval(supplementTextView,
|
||
// resultHandler.getResult(),
|
||
// historyManager,
|
||
// this);
|
||
// }
|
||
//
|
||
// int buttonCount = resultHandler.getButtonCount();
|
||
// ViewGroup buttonView = (ViewGroup) findViewById(R.id.result_button_view);
|
||
// buttonView.requestFocus();
|
||
// for (int x = 0; x < ResultHandler.MAX_BUTTON_COUNT; x++) {
|
||
// TextView button = (TextView) buttonView.getChildAt(x);
|
||
// if (x < buttonCount) {
|
||
// button.setVisibility(View.VISIBLE);
|
||
// button.setText(resultHandler.getButtonText(x));
|
||
// button.setOnClickListener(new ResultButtonListener(resultHandler, x));
|
||
// } else {
|
||
// button.setVisibility(View.GONE);
|
||
// }
|
||
// }
|
||
//
|
||
// }
|
||
//
|
||
// // Briefly show the contents of the barcode, then handle the result outside Barcode Scanner.
|
||
// private void handleDecodeExternally(Result rawResult, ResultHandler resultHandler, Bitmap barcode) {
|
||
//
|
||
// if (barcode != null) {
|
||
// viewfinderView.drawResultBitmap(barcode);
|
||
// }
|
||
//
|
||
// long resultDurationMS;
|
||
// if (getIntent() == null) {
|
||
// resultDurationMS = DEFAULT_INTENT_RESULT_DURATION_MS;
|
||
// } else {
|
||
// resultDurationMS = getIntent().getLongExtra(Intents.Scan.RESULT_DISPLAY_DURATION_MS,
|
||
// DEFAULT_INTENT_RESULT_DURATION_MS);
|
||
// }
|
||
//
|
||
// if (resultDurationMS > 0) {
|
||
// String rawResultString = String.valueOf(rawResult);
|
||
// if (rawResultString.length() > 32) {
|
||
// rawResultString = rawResultString.substring(0, 32) + " ...";
|
||
// }
|
||
// statusView.setText(getString(resultHandler.getDisplayTitle()) + " : " + rawResultString);
|
||
// }
|
||
//
|
||
// maybeSetClipboard(resultHandler);
|
||
//
|
||
// switch (source) {
|
||
// case NATIVE_APP_INTENT:
|
||
// // Hand back whatever action they requested - this can be changed to Intents.Scan.ACTION when
|
||
// // the deprecated intent is retired.
|
||
// Intent intent = new Intent(getIntent().getAction());
|
||
// intent.addFlags(Intents.FLAG_NEW_DOC);
|
||
// intent.putExtra(Intents.Scan.RESULT, rawResult.toString());
|
||
// intent.putExtra(Intents.Scan.RESULT_FORMAT, rawResult.getBarcodeFormat().toString());
|
||
// byte[] rawBytes = rawResult.getRawBytes();
|
||
// if (rawBytes != null && rawBytes.length > 0) {
|
||
// intent.putExtra(Intents.Scan.RESULT_BYTES, rawBytes);
|
||
// }
|
||
// Map<ResultMetadataType, ?> metadata = rawResult.getResultMetadata();
|
||
// if (metadata != null) {
|
||
// if (metadata.containsKey(ResultMetadataType.UPC_EAN_EXTENSION)) {
|
||
// intent.putExtra(Intents.Scan.RESULT_UPC_EAN_EXTENSION,
|
||
// metadata.get(ResultMetadataType.UPC_EAN_EXTENSION).toString());
|
||
// }
|
||
// Number orientation = (Number) metadata.get(ResultMetadataType.ORIENTATION);
|
||
// if (orientation != null) {
|
||
// intent.putExtra(Intents.Scan.RESULT_ORIENTATION, orientation.intValue());
|
||
// }
|
||
// String ecLevel = (String) metadata.get(ResultMetadataType.ERROR_CORRECTION_LEVEL);
|
||
// if (ecLevel != null) {
|
||
// intent.putExtra(Intents.Scan.RESULT_ERROR_CORRECTION_LEVEL, ecLevel);
|
||
// }
|
||
// @SuppressWarnings("unchecked")
|
||
// Iterable<byte[]> byteSegments = (Iterable<byte[]>) metadata.get(ResultMetadataType.BYTE_SEGMENTS);
|
||
// if (byteSegments != null) {
|
||
// int i = 0;
|
||
// for (byte[] byteSegment : byteSegments) {
|
||
// intent.putExtra(Intents.Scan.RESULT_BYTE_SEGMENTS_PREFIX + i, byteSegment);
|
||
// i++;
|
||
// }
|
||
// }
|
||
// }
|
||
// sendReplyMessage(R.id.return_scan_result, intent, resultDurationMS);
|
||
// break;
|
||
//
|
||
// case PRODUCT_SEARCH_LINK:
|
||
// // Reformulate the URL which triggered us into a query, so that the request goes to the same
|
||
// // TLD as the scan URL.
|
||
// int end = sourceUrl.lastIndexOf("/scan");
|
||
// String productReplyURL = sourceUrl.substring(0, end) + "?q=" +
|
||
// resultHandler.getDisplayContents() + "&source=zxing";
|
||
// sendReplyMessage(R.id.launch_product_query, productReplyURL, resultDurationMS);
|
||
// break;
|
||
//
|
||
// case ZXING_LINK:
|
||
// if (scanFromWebPageManager != null && scanFromWebPageManager.isScanFromWebPage()) {
|
||
// String linkReplyURL = scanFromWebPageManager.buildReplyURL(rawResult, resultHandler);
|
||
// scanFromWebPageManager = null;
|
||
// sendReplyMessage(R.id.launch_product_query, linkReplyURL, resultDurationMS);
|
||
// }
|
||
// break;
|
||
// }
|
||
// }
|
||
//
|
||
// private void maybeSetClipboard(ResultHandler resultHandler) {
|
||
// if (copyToClipboard && !resultHandler.areContentsSecure()) {
|
||
// ClipboardInterface.setText(resultHandler.getDisplayContents(), this);
|
||
// }
|
||
// }
|
||
//
|
||
// private void sendReplyMessage(int id, Object arg, long delayMS) {
|
||
// if (handler != null) {
|
||
// Message message = Message.obtain(handler, id, arg);
|
||
// if (delayMS > 0L) {
|
||
// handler.sendMessageDelayed(message, delayMS);
|
||
// } else {
|
||
// handler.sendMessage(message);
|
||
// }
|
||
// }
|
||
// }
|
||
|
||
private void initCamera(SurfaceHolder surfaceHolder) {
|
||
if (surfaceHolder == null) {
|
||
throw new IllegalStateException("No SurfaceHolder provided");
|
||
}
|
||
if (cameraManager.isOpen()) {
|
||
Log.w(TAG, "initCamera() while already open -- late SurfaceView callback?");
|
||
return;
|
||
}
|
||
try {
|
||
cameraManager.openDriver(surfaceHolder);
|
||
// Creating the handler starts the preview, which can also throw a RuntimeException.
|
||
if (handler == null) {
|
||
handler = new CaptureActivityHandler(this, decodeFormats, decodeHints, characterSet, cameraManager);
|
||
}
|
||
decodeOrStoreSavedBitmap(null, null);
|
||
} catch (IOException ioe) {
|
||
Log.w(TAG, ioe);
|
||
// displayFrameworkBugMessageAndExit();
|
||
} 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 initializing camera", e);
|
||
// displayFrameworkBugMessageAndExit();
|
||
}
|
||
}
|
||
|
||
// private void displayFrameworkBugMessageAndExit() {
|
||
// AlertDialog.Builder builder = new AlertDialog.Builder(this);
|
||
// builder.setTitle(getString(R.string.app_name));
|
||
// builder.setMessage(getString(R.string.msg_camera_framework_bug));
|
||
// builder.setPositiveButton(R.string.button_ok, new FinishListener(this));
|
||
// builder.setOnCancelListener(new FinishListener(this));
|
||
// builder.show();
|
||
// }
|
||
|
||
public void restartPreviewAfterDelay(long delayMS) {
|
||
if (handler != null) {
|
||
handler.sendEmptyMessageDelayed(R.id.restart_preview, delayMS);
|
||
}
|
||
resetStatusView();
|
||
}
|
||
|
||
private void resetStatusView() {
|
||
// resultView.setVisibility(View.GONE);
|
||
// statusView.setText(R.string.msg_default_status);
|
||
// statusView.setVisibility(View.VISIBLE);
|
||
viewfinderView.setVisibility(View.VISIBLE);
|
||
lastResult = null;
|
||
}
|
||
|
||
public void drawViewfinder() {
|
||
viewfinderView.drawViewfinder();
|
||
}
|
||
|
||
@Override
|
||
public boolean onTouchEvent(MotionEvent event) {
|
||
if(isZoom && cameraManager.isOpen()){
|
||
Camera camera = cameraManager.getOpenCamera().getCamera();
|
||
if(camera ==null){
|
||
return super.onTouchEvent(event);
|
||
}
|
||
if (event.getPointerCount() == 1) {//单点触控，聚焦
|
||
focusOnTouch(event,camera);
|
||
} else {
|
||
switch (event.getAction() & MotionEvent.ACTION_MASK) {//多点触控
|
||
case MotionEvent.ACTION_POINTER_DOWN:
|
||
oldDistance = calcFingerSpacing(event);
|
||
break;
|
||
case MotionEvent.ACTION_MOVE:
|
||
float newDistance = calcFingerSpacing(event);
|
||
|
||
if (newDistance > oldDistance + DEVIATION) {//
|
||
handleZoom(true, camera);
|
||
} else if (newDistance < oldDistance - DEVIATION) {
|
||
handleZoom(false, camera);
|
||
}
|
||
oldDistance = newDistance;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
return super.onTouchEvent(event);
|
||
}
|
||
|
||
public boolean isZoom() {
|
||
return isZoom;
|
||
}
|
||
|
||
public void setZoom(boolean zoom) {
|
||
isZoom = zoom;
|
||
}
|
||
|
||
/**
|
||
* 处理变焦缩放
|
||
* @param isZoomIn
|
||
* @param camera
|
||
*/
|
||
private void handleZoom(boolean isZoomIn, Camera camera) {
|
||
Camera.Parameters params = camera.getParameters();
|
||
if (params.isZoomSupported()) {
|
||
int maxZoom = params.getMaxZoom();
|
||
int zoom = params.getZoom();
|
||
if (isZoomIn && zoom < maxZoom) {
|
||
zoom++;
|
||
} else if (zoom > 0) {
|
||
zoom--;
|
||
}
|
||
params.setZoom(zoom);
|
||
camera.setParameters(params);
|
||
} else {
|
||
Log.i(TAG, "zoom not supported");
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 聚焦
|
||
* @param event
|
||
* @param camera
|
||
*/
|
||
public void focusOnTouch(MotionEvent event,Camera camera) {
|
||
|
||
Camera.Parameters params = camera.getParameters();
|
||
Camera.Size previewSize = params.getPreviewSize();
|
||
|
||
Rect focusRect = calcTapArea(event.getRawX(), event.getRawY(), 1f,previewSize);
|
||
Rect meteringRect = calcTapArea(event.getRawX(), event.getRawY(), 1.5f,previewSize);
|
||
Camera.Parameters parameters = camera.getParameters();
|
||
if (parameters.getMaxNumFocusAreas() > 0) {
|
||
List<Camera.Area> focusAreas = new ArrayList<>();
|
||
focusAreas.add(new Camera.Area(focusRect, 600));
|
||
parameters.setFocusAreas(focusAreas);
|
||
}
|
||
|
||
if (parameters.getMaxNumMeteringAreas() > 0) {
|
||
List<Camera.Area> meteringAreas = new ArrayList<>();
|
||
meteringAreas.add(new Camera.Area(meteringRect, 600));
|
||
parameters.setMeteringAreas(meteringAreas);
|
||
}
|
||
final String currentFocusMode = params.getFocusMode();
|
||
params.setFocusMode(Camera.Parameters.FOCUS_MODE_MACRO);
|
||
camera.setParameters(params);
|
||
|
||
camera.autoFocus(new Camera.AutoFocusCallback() {
|
||
@Override
|
||
public void onAutoFocus(boolean success, Camera camera) {
|
||
Camera.Parameters params = camera.getParameters();
|
||
params.setFocusMode(currentFocusMode);
|
||
camera.setParameters(params);
|
||
}
|
||
});
|
||
|
||
}
|
||
|
||
/**
|
||
* 计算两指间距离
|
||
* @param event
|
||
* @return
|
||
*/
|
||
private float calcFingerSpacing(MotionEvent event) {
|
||
float x = event.getX(0) - event.getX(1);
|
||
float y = event.getY(0) - event.getY(1);
|
||
return (float) Math.sqrt(x * x + y * y);
|
||
}
|
||
|
||
/**
|
||
* 计算对焦区域
|
||
* @param x
|
||
* @param y
|
||
* @param coefficient
|
||
* @param previewSize
|
||
* @return
|
||
*/
|
||
private Rect calcTapArea(float x, float y, float coefficient,Camera.Size previewSize) {
|
||
float focusAreaSize = 200;
|
||
int areaSize = Float.valueOf(focusAreaSize * coefficient).intValue();
|
||
int centerX = (int) ((x / previewSize.width) * 2000 - 1000);
|
||
int centerY = (int) ((y / previewSize.height) * 2000 - 1000);
|
||
int left = clamp(centerX - (areaSize / 2), -1000, 1000);
|
||
int top = clamp(centerY - (areaSize / 2), -1000, 1000);
|
||
RectF rectF = new RectF(left, top, left + areaSize, top + areaSize);
|
||
return new Rect(Math.round(rectF.left), Math.round(rectF.top),
|
||
Math.round(rectF.right), Math.round(rectF.bottom));
|
||
}
|
||
|
||
/**
|
||
*
|
||
* @param x
|
||
* @param min
|
||
* @param max
|
||
* @return
|
||
*/
|
||
private int clamp(int x, int min, int max) {
|
||
if (x > max) {
|
||
return max;
|
||
}
|
||
if (x < min) {
|
||
return min;
|
||
}
|
||
return x;
|
||
}
|
||
|
||
|
||
} |