现给出示例代码
import com.google.zxing.WriterException; import com.zxing.activity.CaptureActivity; import com.zxing.encoding.EncodingHandler; import android.app.Activity; import android.content.Intent; import android.graphics.Bitmap; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.ImageView; import android.widget.TextView; import android.widget.Toast; public class BarCodeTestActivity extends Activity { /** Called when the activity is first created. */ private TextView resultTextView; private EditText qrStrEditText; private ImageView qrImgImageView; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); resultTextView = (TextView) this.findViewById(R.id.tv_scan_result); qrStrEditText = (EditText) this.findViewById(R.id.et_qr_string); qrImgImageView = (ImageView) this.findViewById(R.id.iv_qr_image); Button scanBarCodeButton = (Button) this.findViewById(R.id.btn_scan_barcode); scanBarCodeButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { //打开扫描界面扫描条形码或二维码 Intent openCameraIntent = new Intent(BarCodeTestActivity.this,CaptureActivity.class); startActivityForResult(openCameraIntent, 0); } }); Button generateQRCodeButton = (Button) this.findViewById(R.id.btn_add_qrcode); generateQRCodeButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { try { String contentString = qrStrEditText.getText().toString(); if (!contentString.equals("")) { //根据字符串生成二维码图片并显示在界面上,第二个参数为图片的大小(350*350) Bitmap qrCodeBitmap = EncodingHandler.createQRCode(contentString, 350); qrImgImageView.setImageBitmap(qrCodeBitmap); }else { Toast.makeText(BarCodeTestActivity.this, "Text can not be empty", Toast.LENGTH_SHORT).show(); } } catch (WriterException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); //处理扫描结果(在界面上显示) if (resultCode == RESULT_OK) { Bundle bundle = data.getExtras(); String scanResult = bundle.getString("result"); resultTextView.setText(scanResult); } } }
注册CaptureActivity.java
<activity android:configChanges="orientation|keyboardHidden" android:name="com.zxing.activity.CaptureActivity" android:screenOrientation="portrait" android:theme="@android:style/Theme.NoTitleBar.Fullscreen" android:windowSoftInputMode="stateAlwaysHidden" > </activity>
添加两个权限,振动&照相机
<uses-permission android:name="android.permission.CAMERA"/> <uses-permission android:name="android.permission.VIBRATE"/>
详情见附件
QRCodeReaderView 是基于 ZXING 条形码扫描工具项目改进,为了在肖像模式和增强现实目的下进行更简单的 Android 二维码检测。此项目可以在相机的预览中显示是否有二维码。
http://www.open-open.com/lib/view/open1446534728935.html
android Zxing扫描二维码
1:工程中需要引入android-support-v7-appcompat
2:扫描界面现在做的效果是四个角在框的外面,如果需要改变二维码扫描的框,可以通过修改ViewfinderView类的onDraw方法来实现不同的效果。
3:项目中现在已经集成了从相册中扫描图片二维码,生成我的二维码,如果你的项目中不需要用到这些,可以去CaptureActivity类中删除相应的代码即可。
4:生成我的二维码那块,现在默认写成了我的名字,如果需要修改的话可以通过传参数的形式来实现要生成的二维码。
https://github.com/gexingfeiyang/TestForMyCapture