package com.wtsang02.activities;
 
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
 
import com.google.zxing.BarcodeFormat;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.ChecksumException;
import com.google.zxing.FormatException;
import com.google.zxing.LuminanceSource;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.NotFoundException;
import com.google.zxing.Reader;
import com.google.zxing.Result;
import com.google.zxing.ResultPoint;
import com.google.zxing.common.HybridBinarizer;
 
 
public class QRDecoder extends Activity implements OnClickListener {
 
    private String text;
    private Button webbutton;
    private Bitmap bmp;
    private ImageView ivPicture;
    private TextView textv;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.mysales);
        webbutton = (Button)findViewById(R.id.webbutton);
 
        ivPicture = (ImageView) findViewById(R.id.ivPicture);
        textv= (TextView) findViewById(R.id.mytext);
 
        webbutton.setOnClickListener(this);
    }
 
    private void decode() {
 
 
        if (bmp == null) {
            Log.i("tag","wtf");
        }
        bmp = bmp.copy(Bitmap.Config.ARGB_8888,true);
 
        int[] intArray = new int[bmp.getWidth() * bmp.getHeight()];
        bmp.getPixels(intArray,bmp.getWidth(),bmp.getHeight());
 
        LuminanceSource source = new com.google.zxing.RGBLuminanceSource(
                bmp.getWidth(),bmp.getHeight(),intArray);
        BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
        Reader reader = new MultiFormatReader();
        try {
            Result result = reader.decode(bitmap);
 
            text = result.getText();
            byte[] rawBytes = result.getRawBytes();
            BarcodeFormat format = result.getBarcodeFormat();
            ResultPoint[] points = result.getResultPoints();
            textv.setText(text);
 
        } catch (NotFoundException e) {
 
            e.printStackTrace();
        } catch (ChecksumException e) {
 
            e.printStackTrace();
        } catch (FormatException e) {
 
            e.printStackTrace();
 
        }
        Log.i("done","done");
        if(text!=null)
        Toast.makeText(getBaseContext(),text,Toast.LENGTH_LONG).show();
        else{
            Toast.makeText(getBaseContext(),"QQ",Toast.LENGTH_LONG).show();
        }
    }
 
    @Override
    public void onClick(View v) {
 
        Intent i = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
        startActivityForResult(i,0);
    }
 
    @Override
    protected void onActivityResult(int requestCode,int resultCode,Intent data) {
        super.onActivityResult(requestCode,resultCode,data);
        if (resultCode == RESULT_OK) {
            Bundle extras = data.getExtras();
            bmp = (Bitmap) extras.get("data");
            ivPicture.setImageBitmap(bmp);
            decode();
        }
 
    }
 
}

此代码将使用您手机的默认摄像头,如果您需要使用他们的客户端,您将需要启动他们的CaptureActivity,您的布局应包括TextView以显示结果,ImageView显示您捕获的图像,以及按钮以启动摄像头. .这是基于2.1zxing.