【发布时间】：2015-02-24 15:28:37
【问题描述】：
在 android 应用程序中集成 zxing 库期间，一切正常，但是当我尝试反复调用相机时，相机会遇到这个问题 这是我的日志
02-24 20:49:34.775: W/CameraBase(15622): An error occurred while connecting to camera: 0
02-24 20:49:34.785: W/CaptureActivity(15622): Unexpected error initializing camera
02-24 20:49:34.785: W/CaptureActivity(15622): java.lang.RuntimeException: Fail to connect to camera service
02-24 20:49:34.785: W/CaptureActivity(15622): at android.hardware.Camera.<init>(Camera.java:545)
02-24 20:49:34.785: W/CaptureActivity(15622): at android.hardware.Camera.open(Camera.java:385)
02-24 20:49:34.785: W/CaptureActivity(15622): at com.google.zxing.client.android.camera.open.OpenCameraInterface.open(OpenCameraInterface.java:53)
02-24 20:49:34.785: W/CaptureActivity(15622): at com.google.zxing.client.android.camera.CameraManager.openDriver(CameraManager.java:80)
02-24 20:49:34.785: W/CaptureActivity(15622): at com.google.zxing.client.android.CaptureActivity.initCamera(CaptureActivity.java:652)
02-24 20:49:34.785: W/CaptureActivity(15622): at com.google.zxing.client.android.CaptureActivity.surfaceCreated(CaptureActivity.java:370)
02-24 20:49:34.785: W/CaptureActivity(15622): at android.view.SurfaceView.updateWindow(SurfaceView.java:607)
02-24 20:49:34.785: W/CaptureActivity(15622): at android.view.SurfaceView$3.onPreDraw(SurfaceView.java:184)
02-24 20:49:34.785: W/CaptureActivity(15622): at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:921)
02-24 20:49:34.785: W/CaptureActivity(15622): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2169)
02-24 20:49:34.785: W/CaptureActivity(15622): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1196)
02-24 20:49:34.785: W/CaptureActivity(15622): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6675)
02-24 20:49:34.785: W/CaptureActivity(15622): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:777)
02-24 20:49:34.785: W/CaptureActivity(15622): at android.view.Choreographer.doCallbacks(Choreographer.java:590)
02-24 20:49:34.785: W/CaptureActivity(15622): at android.view.Choreographer.doFrame(Choreographer.java:560)
02-24 20:49:34.785: W/CaptureActivity(15622): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:763)
02-24 20:49:34.785: W/CaptureActivity(15622): at android.os.Handler.handleCallback(Handler.java:739)
02-24 20:49:34.785: W/CaptureActivity(15622): at android.os.Handler.dispatchMessage(Handler.java:95)
02-24 20:49:34.785: W/CaptureActivity(15622): at android.os.Looper.loop(Looper.java:145)
02-24 20:49:34.785: W/CaptureActivity(15622): at android.app.ActivityThread.main(ActivityThread.java:5944)
02-24 20:49:34.785: W/CaptureActivity(15622): at java.lang.reflect.Method.invoke(Native Method)
02-24 20:49:34.785: W/CaptureActivity(15622): at java.lang.reflect.Method.invoke(Method.java:372)
02-24 20:49:34.785: W/CaptureActivity(15622): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1388)
02-24 20:49:34.785: W/CaptureActivity(15622): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1183)
这是集成zxing库的代码，请查看
@Override
public void onScanClicked(int position) {
barCodePosition = position;
Intent intent = new Intent("com.google.zxing.client.android.SCAN");
intent.putExtra("SCAN_MODE", "SCAN_MODE");
startActivityForResult(intent, 123);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// We came from the scanning activity; the return intent contains a
// RESULT_EXTRA key
// whose value is an ArrayList of BarcodeResult objects that we found
// while scanning.
// Get the list of objects and add them to our list view.
System.out
.println(requestCode + "DDDDDDDDDDDDDDDDDDDDDDD" + resultCode);
switch (requestCode) {
case SCAN_CODE:
if (resultCode == RESULT_OK) {
ArrayList<BarcodeResult> barcodes = data
.getParcelableArrayListExtra(BarcodeScanActivity.RESULT_EXTRA);
if (barcodes != null && barcodes.size() > 0) {
BarcodeResult barCodeResult = barcodes.get(0);
String barCodeNumber = barCodeResult.barcodeString;
Toast.makeText(getApplicationContext(), barCodeNumber,
Toast.LENGTH_LONG).show();
scanAdapter.addBarcodes(barCodeNumber, barCodePosition);
}
}
break;
case SCANNER_REQ_CODE:
if (resultCode == RESULT_OK) {
String contents = data.getStringExtra("SCAN_RESULT");
System.out.println(contents
+ "TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT");
scanAdapter.addBarcodes(contents, barCodePosition);
}
break;
case gps_code:
switch (resultCode) {
case Activity.RESULT_OK:
Bundle bund = data.getExtras();
outletLatitude = bund.getString("LATITUDE");
outletLongitude = bund.getString("LONGITUDE");
diag = ProgressDialog.show(this, "Please wait",
"saving data...");
thd = new Thread(StockCountActivity.this);
thd.start();
break;
default:
}
case product_code:
switch (resultCode) {
case Activity.RESULT_OK:
Bundle bund = data.getExtras();
// purchaseVolume.setText(bund.getString("SALES_VOLUME"));
// purchaseValue.setText(bund.getString("SALES_VALUE"));
// salesDetails = bund.getString("SALES_DETAILS");
break;
case Activity.RESULT_CANCELED:
break;
default:
}
}
}
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标签： android-camera zxing