Android zxing持续扫码不返回上一页

package com.byxc.scanning; import android.Manifest; import android.annotation.TargetApi; import android.app.Activity; import android.app.AlertDialog; import android.content.DialogInterface; import android.content.Intent; import android.content.pm.ActivityInfo; import android.content.pm.PackageManager; import android.content.res.Configuration; import android.graphics.Bitmap; import android.os.Build; import android.os.Bundle; import android.os.Handler; import android.support.v4.app.ActivityCompat; import android.support.v4.content.ContextCompat; import android.util.Log; import android.view.Display; import android.view.Surface; import android.view.Window; import android.view.WindowManager; import com.google.zxing.ResultMetadataType; import com.google.zxing.ResultPoint; import com.google.zxing.client.android.BeepManager; import com.google.zxing.client.android.Intents; import com.journeyapps.barcodescanner.BarcodeCallback; import com.journeyapps.barcodescanner.BarcodeResult; import com.journeyapps.barcodescanner.CameraPreview; import com.journeyapps.barcodescanner.CaptureManager; import com.journeyapps.barcodescanner.DecoratedBarcodeView; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.util.List; import java.util.Map; /** * 原CaptureManager不满足持续扫描的需求，所以进行修改 * Created by ypp on 2018/5/24. */ public class CustomerCaptureManager { private static final String TAG = CaptureManager.class.getSimpleName(); private static int cameraPermissionReqCode = 250; private Activity activity; private DecoratedBarcodeView barcodeView; private int orientationLock = ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED; private static final String SAVED_ORIENTATION_LOCK = "SAVED_ORIENTATION_LOCK"; private boolean returnBarcodeImagePath = false; private boolean destroyed = false; // Delay long enough that the beep can be played. // TODO: play beep in background private static final long DELAY_BEEP = 150; // private InactivityTimer inactivityTimer; private BeepManager beepManager; private Handler handler; private ScanningListener scanningListener; private BarcodeCallback callback = new BarcodeCallback() { @Override public void barcodeResult(final BarcodeResult result) { barcodeView.pause(); beepManager.playBeepSoundAndVibrate(); handler.postDelayed(new Runnable() { @Override public void run() { returnResult(result); } }, DELAY_BEEP); } @Override public void possibleResultPoints(List<ResultPoint> resultPoints) { } }; private final CameraPreview.StateListener stateListener = new CameraPreview.StateListener() { @Override public void previewSized() { } @Override public void previewStarted() { HLog.v(TAG,"previewStarted","预览开始"); } @Override public void previewStopped() { HLog.v(TAG,"previewStarted","预览停止"); } @Override public void cameraError(Exception error) { displayFrameworkBugMessageAndExit(); } }; public CustomerCaptureManager(Activity activity, DecoratedBarcodeView barcodeView, ScanningListener scanningListener) { this.activity = activity; this.barcodeView = barcodeView; this.scanningListener=scanningListener; barcodeView.getBarcodeView().pause();//先停止，再重启 barcodeView.getBarcodeView().resume(); barcodeView.getBarcodeView().addStateListener(stateListener); handler = new Handler(); // inactivityTimer = new InactivityTimer(activity, new Runnable() { // @Override // public void run() { // Log.d(TAG, "Finishing due to inactivity"); // finish(); // } // }); beepManager = new BeepManager(activity); } /** * Perform initialization, according to preferences set in the intent. * * @param intent the intent containing the scanning preferences * @param savedInstanceState saved state, containing orientation lock */ public void initializeFromIntent(Intent intent, Bundle savedInstanceState) { Window window = activity.getWindow(); window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); if (savedInstanceState != null) { // If the screen was locked and unlocked again, we may start in a different orientation // (even one not allowed by the manifest). In this case we restore the orientation we were // previously locked to. this.orientationLock = savedInstanceState.getInt(SAVED_ORIENTATION_LOCK, ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED); } if(intent != null) { if (orientationLock == ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED) { // Only lock the orientation if it's not locked to something else yet boolean orientationLocked = intent.getBooleanExtra(Intents.Scan.ORIENTATION_LOCKED, true); if (orientationLocked) { lockOrientation(); } } if (Intents.Scan.ACTION.equals(intent.getAction())) { barcodeView.initializeFromIntent(intent); } if (!intent.getBooleanExtra(Intents.Scan.BEEP_ENABLED, true)) { beepManager.setBeepEnabled(false); beepManager.updatePrefs(); } if (intent.hasExtra(Intents.Scan.TIMEOUT)) { Runnable runnable = new Runnable() { @Override public void run() { returnResultTimeout(); } }; handler.postDelayed(runnable, intent.getLongExtra(Intents.Scan.TIMEOUT, 0L)); } if (intent.getBooleanExtra(Intents.Scan.BARCODE_IMAGE_ENABLED, false)) { returnBarcodeImagePath = true; } } } /** * Lock display to current orientation. */ protected void lockOrientation() { // Only get the orientation if it's not locked to one yet. if (this.orientationLock == ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED) { // Adapted from http://stackoverflow.com/a/14565436 Display display = activity.getWindowManager().getDefaultDisplay(); int rotation = display.getRotation(); int baseOrientation = activity.getResources().getConfiguration().orientation; int orientation = 0; if (baseOrientation == Configuration.ORIENTATION_LANDSCAPE) { if (rotation == Surface.ROTATION_0 || rotation == Surface.ROTATION_90) { orientation = ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE; } else { orientation = ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE; } } else if (baseOrientation == Configuration.ORIENTATION_PORTRAIT) { if (rotation == Surface.ROTATION_0 || rotation == Surface.ROTATION_270) { orientation = ActivityInfo.SCREEN_ORIENTATION_PORTRAIT; } else { orientation = ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT; } } this.orientationLock = orientation; } //noinspection ResourceType activity.setRequestedOrientation(this.orientationLock); } /** * Start decoding. */ public void decode() { barcodeView.decodeSingle(callback); } /** * Call from Activity#onResume(). */ public void onResume() { if(Build.VERSION.SDK_INT >= 23) { openCameraWithPermission();