Question

What I want the app to do after scanning is to dial the number instead of displaying it.所以我是Android开发和zxing库的新手。我已经能够使用zxing库创建一个独立的QR扫描仪应用程序，但问题是当它扫描QR码时，我希望它能够在浏览器中打开URL或根据内容做一些其他内容。 QR而不是显示QR码的字符串内容。例如，如果QR码的字符串内容是URL＆＃34; www.stackoverflow.com＆＃34;，我希望应用程序带我到网站而不是显示QR码的字符串内容。

这是我的CaptureActivity的代码

package com.skyers.jwetherell.quick_response_code;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.util.Log;
import android.util.TypedValue;
import android.view.KeyEvent;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;

import com.skyers.google.zxing.Result;
import com.skyers.google.zxing.ResultMetadataType;
import com.skyers.jwetherell.quick_response_code.result.ResultHandler;
import com.skyers.jwetherell.quick_response_code.result.ResultHandlerFactory;

import java.text.DateFormat;
import java.util.Date;
import java.util.EnumSet;
import java.util.Map;
import java.util.Set;

public class CaptureActivity extends com.skyers.jwetherell.quick_response_code.DecoderActivity {

    private static final String TAG = CaptureActivity.class.getSimpleName();
    private static final Set<ResultMetadataType> DISPLAYABLE_METADATA_TYPES = EnumSet.of(ResultMetadataType.ISSUE_NUMBER, ResultMetadataType.SUGGESTED_PRICE,
        ResultMetadataType.ERROR_CORRECTION_LEVEL, ResultMetadataType.POSSIBLE_COUNTRY);

    private TextView statusView = null;
    private View resultView = null;
    private boolean inScanMode = false;

    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        setContentView(R.layout.capture);
        Log.v(TAG, "onCreate()");

        resultView = findViewById(R.id.result_view);
        statusView = (TextView) findViewById(R.id.status_view);

        inScanMode = false;
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        Log.v(TAG, "onDestroy()");
    }

    @Override
    protected void onResume() {
        super.onResume();
        Log.v(TAG, "onResume()");
    }

    @Override
    protected void onPause() {
        super.onPause();
        Log.v(TAG, "onPause()");
    }

    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if (keyCode == KeyEvent.KEYCODE_BACK) {
            if (inScanMode)
                finish();
            else
                onResume();
            return true;
        }
        return super.onKeyDown(keyCode, event);
    }

    @Override
    public void handleDecode(Result rawResult, Bitmap barcode) {
        drawResultPoints(barcode, rawResult);

        ResultHandler resultHandler = ResultHandlerFactory.makeResultHandler(this, rawResult);
        handleDecodeInternally(rawResult, resultHandler, barcode);
    }

    protected void showScanner() {
        inScanMode = true;
        resultView.setVisibility(View.GONE);
        statusView.setText(R.string.msg_default_status);
        statusView.setVisibility(View.VISIBLE);
        viewfinderView.setVisibility(View.VISIBLE);
    }

    protected void showResults() {
        inScanMode = false;
        statusView.setVisibility(View.GONE);
        viewfinderView.setVisibility(View.GONE);
        resultView.setVisibility(View.VISIBLE);
    }

    // Put up our own UI for how to handle the decodBarcodeFormated contents.
    private void handleDecodeInternally(Result rawResult, ResultHandler resultHandler, Bitmap barcode) {
        onPause();
        showResults();

        ImageView barcodeImageView = (ImageView) findViewById(R.id.barcode_image_view);
        if (barcode == null) {
            barcodeImageView.setImageBitmap(BitmapFactory.decodeResource(getResources(), R.drawable.skyers));
        } else {
            barcodeImageView.setImageBitmap(barcode);
        }

        TextView formatTextView = (TextView) findViewById(R.id.format_text_view);
        formatTextView.setText(rawResult.getBarcodeFormat().toString());

        TextView typeTextView = (TextView) findViewById(R.id.type_text_view);
        typeTextView.setText(resultHandler.getType().toString());

        DateFormat formatter = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT);
        String formattedTime = formatter.format(new Date(rawResult.getTimestamp()));
        TextView timeTextView = (TextView) findViewById(R.id.time_text_view);
        timeTextView.setText(formattedTime);

        TextView metaTextView = (TextView) findViewById(R.id.meta_text_view);
        View metaTextViewLabel = findViewById(R.id.meta_text_view_label);
        metaTextView.setVisibility(View.GONE);
        metaTextViewLabel.setVisibility(View.GONE);
        Map<ResultMetadataType, Object> metadata = rawResult.getResultMetadata();
        if (metadata != null) {
            StringBuilder metadataText = new StringBuilder(20);
            for (Map.Entry<ResultMetadataType, Object> entry : metadata.entrySet()) {
                if (DISPLAYABLE_METADATA_TYPES.contains(entry.getKey())) {
                    metadataText.append(entry.getValue()).append('\n');
                }
            }
            if (metadataText.length() > 0) {
                metadataText.setLength(metadataText.length() - 1);
                metaTextView.setText(metadataText);
                metaTextView.setVisibility(View.VISIBLE);
                metaTextViewLabel.setVisibility(View.VISIBLE);
            }
        }

        TextView contentsTextView = (TextView) findViewById(R.id.contents_text_view);
        CharSequence displayContents = resultHandler.getDisplayContents();
        contentsTextView.setText(displayContents);
        // Crudely scale betweeen 22 and 32 -- bigger font for shorter text
        int scaledSize = Math.max(22, 32 - displayContents.length() / 4);
        contentsTextView.setTextSize(TypedValue.COMPLEX_UNIT_SP, scaledSize);
    }
}

这是我的ResultHandler的代码

package com.skyers.jwetherell.quick_response_code.result;

import android.app.Activity;

import com.skyers.google.zxing.Result;
import com.skyers.google.zxing.client.result.ParsedResult;
import com.skyers.google.zxing.client.result.ParsedResultType;

public abstract class ResultHandler {

    private final ParsedResult result;
    private final Activity activity;
    private final Result rawResult;

    ResultHandler(Activity activity, ParsedResult result) {
        this(activity, result, null);
    }

    ResultHandler(Activity activity, ParsedResult result, Result rawResult) {
        this.result = result;
        this.activity = activity;
        this.rawResult = rawResult;
    }

    public ParsedResult getResult() {
        return result;
    }

    Activity getActivity() {
        return activity;
    }

    public Result getRawResult() {
        return rawResult;
    }

    public boolean areContentsSecure() {
        return false;
    }

    public CharSequence getDisplayContents() {
        String contents = result.getDisplayResult();
        return contents.replace("\r", "");
    }

    public abstract int getDisplayTitle();

    public final ParsedResultType getType() {
        return result.getType();
    }
}

Answer 1

你的问题不是很清楚，你必须提供一些源代码来解释你的问题。

您可以使用此库：https://github.com/zxing/zxing/wiki/Scanning-Via-Intent

并在您的活动中：

with Managers as
(

SELECT empid, mgrid, firstname,lastname
FROM HR.Employees as h
where 
*******

如何让zxing在浏览器中打开URL或在扫描后拨打一个号码

1 个答案: