zbar和QR码阅读器 - QR码阅读器
问题描述:
我试图做一个QR码阅读器zbar和,但QR码之后,应用程序崩溃后检测碰撞(!当结果= 0)zbar和QR码阅读器 - QR码阅读器
我没有变错误消息,只有一个警告:
CHECK表面信息来源创建=假formatChanged =假 SizeChanged将=假可见=假visibleChanged =真 surfaceChanged =真realSizeChanged =假redrawNeeded =假 左=假顶=假
这里是我得到的崩溃
public void onPreviewFrame(byte[] data, Camera camera) {
Camera.Parameters parameters = camera.getParameters();
Camera.Size size = parameters.getPreviewSize();
Image barcode = new Image(size.width, size.height, "Y800");
barcode.setData(data);
int result = mScanner.scanImage(barcode);
if (result != 0) {
mCamera.cancelAutoFocus();
mCamera.setPreviewCallback(null);
mCamera.stopPreview();
mPreviewing = false;
SymbolSet syms = mScanner.getResults();
for (Symbol sym : syms) {
String symData = sym.getData();
if (!TextUtils.isEmpty(symData)) {
Intent dataIntent = new Intent();
dataIntent.putExtra(SCAN_RESULT, symData);
dataIntent.putExtra(SCAN_RESULT_TYPE, sym.getType());
setResult(Activity.RESULT_OK, dataIntent);
finish();
break;
}
}
}
}
答
试试这个......对于读者的QR码....
public class QRCodeActivityTest extends Activity implements OnQRCodeReadListener {
QRCodeReaderView qrView;
TextView tvQr;
Image_Sql sql;
String Description;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.qrtest_layout);
qrView = (QRCodeReaderView) findViewById(R.id.qRCodeReaderView1);
qrView.setOnQRCodeReadListener(this);
tvQr = (TextView) findViewById(R.id.txtqr);
sql= new Image_Sql(this);
sql.Open();
}
@Override
public void onQRCodeRead(String text, PointF[] points) {
// TODO Auto-generated method stub
Cursor desc = sql.fetchNameFromTitle(text);
while (desc.moveToNext()) {
Description = desc.getString(desc
.getColumnIndexOrThrow(Image_Sql.IMAGE_DESCRIPTION));
}
if(text.equals(""))
{
Dialog d = new Dialog(this);
TextView tv = new TextView(this);
tv.setText("Please Sync Catalogue TO Display QRCode Image Information");
d.setContentView(tv);
d.setTitle("Required Syncing..");
d.show();
}else
{
tvQr.setText(Description);
}
}
@Override
public void cameraNotFound() {
// TODO Auto-generated method stub
}
@Override
public void QRCodeNotFoundOnCamImage() {
// TODO Auto-generated method stub
}
@Override
protected void onResume() {
super.onResume();
qrView.getCameraManager().startPreview();
}
@Override
protected void onPause() {
super.onPause();
qrView.getCameraManager().stopPreview();
}
}
+0
您是在阅读问题还是只是发布一些随机谷歌调查结果? – Selvin
答
我做了更新我的代码和它很好用!所有!
public void onPreviewFrame(byte[] data, Camera camera) {
Camera.Parameters parameters = camera.getParameters();
Camera.Size size = parameters.getPreviewSize();
Image barcode = new Image(size.width, size.height, "Y800");
barcode.setData(data);
int result = mScanner.scanImage(barcode);
if (result != 0) {
mCamera.cancelAutoFocus();
mCamera.setPreviewCallback(null);
mCamera.stopPreview();
mPreviewing = false;
SymbolSet syms = mScanner.getResults();
for (Symbol sym : syms) {
String symData = sym.getData();
Log.i("url qr code",symData);
Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(symData));
startActivity(browserIntent);
break;
}
}
}
您在模拟器或设备上运行 –