![](/img/trans.png)
[英]Android Data Binding Error:Execution failed java.lang.RuntimeException:
[英]Zbar Scanner Error java.lang.RuntimeException: cancelAutoFocus failed
我的應用程序包含條形碼掃描儀,我使用了 Zbar 掃描儀並且它工作但以下錯誤不斷出現,我搜索了很多我沒有找到任何解決方案的錯誤:
java.lang.RuntimeException: cancelAutoFocus failed
java.lang.RuntimeException: cancelAutoFocus failed
at android.hardware.Camera.native_cancelAutoFocus(Native Method)
我使用的代碼:
private void initScanner(){
mScannerView = new ZBarScannerView(this);
scannView.addView(mScannerView);
mScannerView.setResultHandler(this);
mScannerView.startCamera();
mScannerView.setAutoFocus(true);
mScannerView.setSoundEffectsEnabled(true);
mScannerView.setContentDescription("barcode scanner ");
//scanResult.setText("scan barcode automatically");
mScannerView.setClickable(true);
}
@Override
public void handleResult(me.dm7.barcodescanner.zbar.Result rawResult) {
nameOfInputItems.requestFocus();
ToneGenerator tg = new ToneGenerator(AudioManager.STREAM_NOTIFICATION, 100);
tg.startTone(ToneGenerator.TONE_PROP_BEEP);
// nameOfInputItems.requestFocus();
if (rawResult != null) {
if (rawResult.getContents() == null) {
Toast.makeText(this, "Cancelled", Toast.LENGTH_LONG).show();
} else {
Toast.makeText(this, "done!", Toast.LENGTH_LONG).show();
scanResult.setText(rawResult.getContents());
barCode=scanResult.getText().toString();
}
} mScannerView.resumeCameraPreview(this);
}
我在代碼中發現了問題,我應該從 onResume 方法中刪除 mScannerView.startCamera()
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.