android Camera2 + zxing进行二维码解码

资源文件列表(大概)

文件名

大小

CameraTest/

CameraTest/.gitignore

222B

CameraTest/.gradle/

CameraTest/.gradle/5.4.1/

CameraTest/.gradle/5.4.1/executionHistory/

CameraTest/.gradle/5.4.1/executionHistory/executionHistory.bin

2.76MB

CameraTest/.gradle/5.4.1/executionHistory/executionHistory.lock

17B

CameraTest/.gradle/5.4.1/fileChanges/

CameraTest/.gradle/5.4.1/fileChanges/last-build.bin

CameraTest/.gradle/5.4.1/fileContent/

CameraTest/.gradle/5.4.1/fileContent/fileContent.lock

17B

CameraTest/.gradle/5.4.1/fileHashes/

CameraTest/.gradle/5.4.1/fileHashes/fileHashes.bin

255.29KB

CameraTest/.gradle/5.4.1/fileHashes/fileHashes.lock

17B

CameraTest/.gradle/5.4.1/fileHashes/resourceHashesCache.bin

18.99KB

CameraTest/.gradle/5.4.1/gc.properties

CameraTest/.gradle/5.4.1/javaCompile/

CameraTest/.gradle/5.4.1/javaCompile/classAnalysis.bin

1014.07KB

CameraTest/.gradle/5.4.1/javaCompile/javaCompile.lock

17B

CameraTest/.gradle/5.4.1/javaCompile/taskHistory.bin

32.49KB

CameraTest/.gradle/5.4.1/vcsMetadata-1/

CameraTest/.gradle/buildOutputCleanup/

CameraTest/.gradle/buildOutputCleanup/buildOutputCleanup.lock

17B

CameraTest/.gradle/buildOutputCleanup/cache.properties

53B

CameraTest/.gradle/buildOutputCleanup/outputFiles.bin

97.29KB

CameraTest/.gradle/vcs-1/

CameraTest/.gradle/vcs-1/gc.properties

CameraTest/.idea/

CameraTest/.idea/.gitignore

50B

CameraTest/.idea/caches/

CameraTest/.idea/caches/build_file_checksums.ser

536B

CameraTest/.idea/caches/gradle_models.ser

130.23KB

CameraTest/.idea/codeStyles/

CameraTest/.idea/codeStyles/Project.xml

3.34KB

CameraTest/.idea/compiler.xml

174B

CameraTest/.idea/gradle.xml

886B

CameraTest/.idea/jarRepositories.xml

1.66KB

CameraTest/.idea/libraries/

CameraTest/.idea/libraries/Gradle__androidx_annotation_annotation_1_0_0.xml

761B

CameraTest/.idea/libraries/Gradle__androidx_appcompat_appcompat_1_0_2_aar.xml

996B

CameraTest/.idea/libraries/Gradle__androidx_arch_core_core_common_2_0_0.xml

565B

CameraTest/.idea/libraries/Gradle__androidx_arch_core_core_runtime_2_0_0_aar.xml

830B

CameraTest/.idea/libraries/Gradle__androidx_asynclayoutinflater_asynclayoutinflater_1_0_0_aar.xml

892B

CameraTest/.idea/libraries/Gradle__androidx_collection_collection_1_0_0.xml

563B

CameraTest/.idea/libraries/Gradle__androidx_constraintlayout_constraintlayout_1_1_3_aar.xml

652B

CameraTest/.idea/libraries/Gradle__androidx_constraintlayout_constraintlayout_solver_1_1_3.xml

416B

CameraTest/.idea/libraries/Gradle__androidx_coordinatorlayout_coordinatorlayout_1_0_0_aar.xml

1.04KB

CameraTest/.idea/libraries/Gradle__androidx_core_core_1_0_1_aar.xml

951B

CameraTest/.idea/libraries/Gradle__androidx_cursoradapter_cursoradapter_1_0_0_aar.xml

844B

CameraTest/.idea/libraries/Gradle__androidx_customview_customview_1_0_0_aar.xml

820B

CameraTest/.idea/libraries/Gradle__androidx_documentfile_documentfile_1_0_0_aar.xml

836B

CameraTest/.idea/libraries/Gradle__androidx_drawerlayout_drawerlayout_1_0_0_aar.xml

1023B

CameraTest/.idea/libraries/Gradle__androidx_fragment_fragment_1_0_0_aar.xml

987B

CameraTest/.idea/libraries/Gradle__androidx_interpolator_interpolator_1_0_0_aar.xml

836B

CameraTest/.idea/libraries/Gradle__androidx_legacy_legacy_support_core_ui_1_0_0_aar.xml

884B

CameraTest/.idea/libraries/Gradle__androidx_legacy_legacy_support_core_utils_1_0_0_aar.xml

902B

CameraTest/.idea/libraries/Gradle__androidx_lifecycle_lifecycle_common_2_0_0.xml

590B

CameraTest/.idea/libraries/Gradle__androidx_lifecycle_lifecycle_livedata_2_0_0_aar.xml

866B

CameraTest/.idea/libraries/Gradle__androidx_lifecycle_lifecycle_livedata_core_2_0_0_aar.xml

896B

CameraTest/.idea/libraries/Gradle__androidx_lifecycle_lifecycle_runtime_2_0_0_aar.xml

860B

CameraTest/.idea/libraries/Gradle__androidx_lifecycle_lifecycle_viewmodel_2_0_0_aar.xml

872B

CameraTest/.idea/libraries/Gradle__androidx_loader_loader_1_0_0_aar.xml

788B

CameraTest/.idea/libraries/Gradle__androidx_localbroadcastmanager_localbroadcastmanager_1_0_0_aar.xml

907B

CameraTest/.idea/libraries/Gradle__androidx_print_print_1_0_0_aar.xml

960B

CameraTest/.idea/libraries/Gradle__androidx_slidingpanelayout_slidingpanelayout_1_0_0_aar.xml

876B

CameraTest/.idea/libraries/Gradle__androidx_swiperefreshlayout_swiperefreshlayout_1_0_0_aar.xml

1.05KB

CameraTest/.idea/libraries/Gradle__androidx_test_core_1_1_0_aar.xml

952B

CameraTest/.idea/libraries/Gradle__androidx_test_espresso_espresso_core_3_1_1_aar.xml

1.03KB

CameraTest/.idea/libraries/Gradle__androidx_test_espresso_espresso_idling_resource_3_1_1_aar.xml

1.11KB

CameraTest/.idea/libraries/Gradle__androidx_test_ext_junit_1_1_0_aar.xml

972B

CameraTest/.idea/libraries/Gradle__androidx_test_monitor_1_1_1_aar.xml

975B

CameraTest/.idea/libraries/Gradle__androidx_test_runner_1_1_1_aar.xml

967B

CameraTest/.idea/libraries/Gradle__androidx_vectordrawable_vectordrawable_1_0_1_aar.xml

852B

CameraTest/.idea/libraries/Gradle__androidx_vectordrawable_vectordrawable_animated_1_0_0_aar.xml

906B

CameraTest/.idea/libraries/Gradle__androidx_versionedparcelable_versionedparcelable_1_0_0_aar.xml

892B

CameraTest/.idea/libraries/Gradle__androidx_viewpager_viewpager_1_0_0_aar.xml

812B

CameraTest/.idea/libraries/Gradle__com_google_code_findbugs_jsr305_2_0_1.xml

363B

CameraTest/.idea/libraries/Gradle__com_google_zxing_core_3_5_1.xml

706B

CameraTest/.idea/libraries/Gradle__com_squareup_javawriter_2_1_1.xml

733B

CameraTest/.idea/libraries/Gradle__javax_inject_javax_inject_1.xml

719B

CameraTest/.idea/libraries/Gradle__junit_junit_4_12.xml

663B

CameraTest/.idea/libraries/Gradle__net_sf_kxml_kxml2_2_3_0.xml

694B

CameraTest/.idea/libraries/Gradle__org_hamcrest_hamcrest_core_1_3.xml

740B

CameraTest/.idea/libraries/Gradle__org_hamcrest_hamcrest_integration_1_3.xml

789B

CameraTest/.idea/libraries/Gradle__org_hamcrest_hamcrest_library_1_3.xml

760B

CameraTest/.idea/misc.xml

378B

CameraTest/.idea/modules/

CameraTest/.idea/modules.xml

415B

CameraTest/.idea/modules/app/

CameraTest/.idea/modules/app/CameraTest.app.iml

8.59KB

CameraTest/.idea/runConfigurations.xml

698B

CameraTest/.idea/workspace.xml

10.31KB

CameraTest/app/

CameraTest/app/.gitignore

CameraTest/app/build.gradle

1.21KB

CameraTest/app/libs/

CameraTest/app/proguard-rules.pro

772B

CameraTest/app/src/

CameraTest/app/src/androidTest/

CameraTest/app/src/androidTest/java/

CameraTest/app/src/androidTest/java/com/

CameraTest/app/src/androidTest/java/com/ipos/

CameraTest/app/src/androidTest/java/com/ipos/cameratest/

CameraTest/app/src/androidTest/java/com/ipos/cameratest/ExampleInstrumentedTest.java

781B

CameraTest/app/src/main/

CameraTest/app/src/main/AndroidManifest.xml

1.37KB

CameraTest/app/src/main/java/

CameraTest/app/src/main/java/com/

CameraTest/app/src/main/java/com/ipos/

CameraTest/app/src/main/java/com/ipos/cameratest/

CameraTest/app/src/main/java/com/ipos/cameratest/MainActivity.java

6.82KB

CameraTest/app/src/main/java/com/ipos/cameratest/QrCamera.java

23.33KB

CameraTest/app/src/main/java/com/ipos/cameratest/QrDecorateView.java

4.77KB

CameraTest/app/src/main/java/com/ipos/cameratest/QrYuvLuminanceSource.java

1.71KB

CameraTest/app/src/main/res/

CameraTest/app/src/main/res/drawable/

CameraTest/app/src/main/res/drawable-v24/

CameraTest/app/src/main/res/drawable-v24/ic_launcher_foreground.xml

1.87KB

CameraTest/app/src/main/res/drawable/ic_launcher_background.xml

5.64KB

CameraTest/app/src/main/res/layout/

CameraTest/app/src/main/res/layout/activity_main.xml

988B

CameraTest/app/src/main/res/mipmap-anydpi-v26/

CameraTest/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

276B

CameraTest/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

276B

CameraTest/app/src/main/res/mipmap-hdpi/

CameraTest/app/src/main/res/mipmap-hdpi/ic_launcher.png

2.89KB

CameraTest/app/src/main/res/mipmap-hdpi/ic_launcher_round.png

4.79KB

CameraTest/app/src/main/res/mipmap-mdpi/

CameraTest/app/src/main/res/mipmap-mdpi/ic_launcher.png

2.01KB

CameraTest/app/src/main/res/mipmap-mdpi/ic_launcher_round.png

2.72KB

CameraTest/app/src/main/res/mipmap-xhdpi/

CameraTest/app/src/main/res/mipmap-xhdpi/ic_launcher.png

4.38KB

CameraTest/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png

6.73KB

CameraTest/app/src/main/res/mipmap-xxhdpi/

CameraTest/app/src/main/res/mipmap-xxhdpi/ic_launcher.png

6.24KB

CameraTest/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png

10.17KB

CameraTest/app/src/main/res/mipmap-xxxhdpi/

CameraTest/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png

8.91KB

CameraTest/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png

14.78KB

CameraTest/app/src/main/res/values/

CameraTest/app/src/main/res/values/colors.xml

395B

CameraTest/app/src/main/res/values/strings.xml

76B

CameraTest/app/src/main/res/values/styles.xml

394B

CameraTest/app/src/test/

CameraTest/app/src/test/java/

CameraTest/app/src/test/java/com/

CameraTest/app/src/test/java/com/ipos/

CameraTest/app/src/test/java/com/ipos/cameratest/

CameraTest/app/src/test/java/com/ipos/cameratest/ExampleUnitTest.java

396B

CameraTest/build.gradle

771B

CameraTest/CameraTest.iml

991B

CameraTest/gradle/

CameraTest/gradle.properties

1.07KB

CameraTest/gradlew

5.17KB

CameraTest/gradlew.bat

2.21KB

CameraTest/gradle/wrapper/

CameraTest/gradle/wrapper/gradle-wrapper.jar

53.06KB

CameraTest/gradle/wrapper/gradle-wrapper.properties

238B

CameraTest/local.properties

366B

CameraTest/settings.gradle

47B

资源内容介绍

网上很多关于zxing的相关资源，但基本都是调用的camera或camerax进行集成的，由于摄像头原因，camera原生api又无法进行对焦，camerax在系统源码中又不是很方便导入到编译脚本，故使用了camera2进行集成。关键代码调用:LuminanceSource source = new RGBLuminanceSource(width, height, data);BinaryBitmap bitmap1 = new BinaryBitmap(new HybridBinarizer(source));Result qrCodeResult = null; MultiFormatReader multiFormatReader = new MultiFormatReader(); try { qrCodeResult = multiFormatReader.decode(bitmap1); } catch (NotFoundException e) { }

package com.ipos.cameratest;import android.Manifest;import android.content.pm.PackageManager;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.graphics.ImageFormat;import android.hardware.camera2.CameraAccessException;import android.hardware.camera2.CameraCaptureSession;import android.hardware.camera2.CameraCharacteristics;import android.hardware.camera2.CameraManager;import android.hardware.camera2.CaptureRequest;import android.hardware.camera2.params.StreamConfigurationMap;import android.media.Image;import android.media.ImageReader;import android.nfc.Tag;import android.os.Environment;import android.os.Handler;import android.content.Context;import android.content.res.Configuration;import android.graphics.Matrix;import android.graphics.Rect;import android.graphics.SurfaceTexture;//import android.hardware.Camera;//import android.hardware.Camera.CameraInfo;//import android.hardware.Camera.Parameters;import android.hardware.camera2.CameraDevice;import android.os.AsyncTask;import android.os.HandlerThread;import android.os.Looper;import android.os.Message;import android.text.TextUtils;import android.util.ArrayMap;import android.util.Log;import android.util.Size;import android.view.SurfaceHolder;import android.view.SurfaceView;import android.view.TextureView;import android.view.View;import android.view.WindowManager;import android.widget.Toast;import androidx.annotation.VisibleForTesting;import androidx.core.app.ActivityCompat;import com.google.zxing.BarcodeFormat;import com.google.zxing.BinaryBitmap;import com.google.zxing.DecodeHintType;import com.google.zxing.LuminanceSource;import com.google.zxing.MultiFormatReader;import com.google.zxing.NotFoundException;import com.google.zxing.RGBLuminanceSource;import com.google.zxing.ReaderException;import com.google.zxing.Result;import com.google.zxing.common.HybridBinarizer;import java.io.File;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.lang.ref.WeakReference;import java.nio.ByteBuffer;import java.util.ArrayList;import java.util.Arrays;import java.util.List;import java.util.Map;import java.util.concurrent.Executors;import java.util.concurrent.Semaphore;/** * Manage the camera for the QR scanner and help the decoder to get the image inside the scanning * frame. Caller prepares a {@link SurfaceTexture} then call {@link #start()} to * start QR Code scanning. The scanning result will return by ScannerCallback interface. Caller * can also call {@link #stop()} to halt QR Code scanning before the result returned. */public class QrCamera extends Handler { private static final String TAG = "QrCamera"; private static final int MSG_AUTO_FOCUS = 1; /** * The max allowed difference between picture size ratio and preview size ratio. * Uses to filter the picture sizes of similar preview size ratio, for example, if a preview * size is 1920x1440, MAX_RATIO_DIFF 0.1 could allow picture size of 720x480 or 352x288 or * 176x44 but not 1920x1080. */ private static final double MAX_RATIO_DIFF = 0.1; private static final long AUTOFOCUS_INTERVAL_MS = 1500L; private static Map<DecodeHintType, List<BarcodeFormat>> HINTS = new ArrayMap<>(); private static List<BarcodeFormat> FORMATS = new ArrayList<>(); static { FORMATS.add(BarcodeFormat.QR_CODE); HINTS.put(DecodeHintType.POSSIBLE_FORMATS, FORMATS); } @VisibleForTesting// Camera mCamera; private CameraDevice mCameraDevice; private CameraCaptureSession mCaptureSession; private CaptureRequest.Builder mPreviewRequestBuilder; private CaptureRequest mPreviewRequest; private SurfaceView mSurfaceView; private SurfaceHolder mSurfaceHolder; private ImageReader mImageReader; private Size mPreviewSize; private WeakReference<Context> mContext; private ScannerCallback mScannerCallback; private MultiFormatReader mReader; private DecodingTask mDecodeTask; private int mCameraOrientation = 0; @VisibleForTesting// Camera.Parameters mParameters; public QrCamera(Context context, ScannerCallback callback) { mContext = new WeakReference<Context>(context); mScannerCallback = callback; mReader = new MultiFormatReader(); mReader.setHints(HINTS); } public QrCamera(Context context, ScannerCallback callback, SurfaceView mSurfaceView, SurfaceHolder mSurfaceHolder) { mContext = new WeakReference<Context>(context); mScannerCallback = callback; mReader = new MultiFormatReader(); mReader.setHints(HINTS); this.mSurfaceView = mSurfaceView; this.mSurfaceHolder = mSurfaceHolder; mPreviewSize = new Size(mSurfaceView.getWidth(), mSurfaceView.getHeight()); } /** * The function start camera preview and capture pictures to decode QR code continuously in a * background task. * //@param surface The surface to be used for live preview. */ public void start() { CameraManager manager = (CameraManager) mContext.get().getSystemService(Context.CAMERA_SERVICE); try { String cameraId = manager.getCameraIdList()[0]; CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId); StreamConfigurationMap map = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP); int width = mPreviewSize.getWidth(); int height = mPreviewSize.getHeight(); mImageReader = ImageReader.newInstance(width, height, ImageFormat.JPEG, 1); mImageReader.setOnImageAvailableListener(mOnImageAvailableListener, null); if (ActivityCompat.checkSelfPermission(mContext.get(), Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) { return; } manager.openCamera(cameraId, mStateCallback, null); } catch (CameraAccessException e) { e.printStackTrace(); } } final Semaphore imageGot = new Semaphore(0); long lastTime = 0; private final ImageReader.OnImageAvailableListener mOnImageAvailableListener = new ImageReader.OnImageAvailableListener() { @Override public void onImageAvailable(ImageReader reader) { Image image = reader.acquireLatestImage(); if (image == null) { return; } ByteBuffer buffer = image.getPlanes()[0].getBuffer(); byte[] bytes = new byte[buffer.remaining()]; buffer.get(bytes); image.close(); imageGot.release(); try { // Semaphore.acquire() blocking until permit is available, or the thread is // interrupted. imageGot.acquire(); Result qrCode = decodeQRCode(BitmapFactory.decodeByteArray(bytes, 0, bytes.length)); if (qrCode != null) { if (mScannerCallback.isValid(qrCode.getText())) { long curTime = System.currentTimeMillis(); if (curTime < lastTime + 3000) { return; } lastTime = curTime; if (qrCode != null) { mScannerCallback.handleSuccessfulResult(qrCode.getText());

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android Camera2 + zxing进行二维码解码

资源文件列表(大概)

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