[置顶] android开发之集成zxing,二维码，以及扫描二维码的功能实现。带源代码下载

package cc.jiusansec.www;

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;

/**
* @author 官网：http://www.93sec.cc
*
*         David编写： 微博：http://weibo.com/93sec.cc
*
* @version V1.0正式版 扫描二维码及生成二维码
*
* @process QQ986945193
*
* @Note weibo.com/mcxiaobing
*
* @dateTime 2015-10-18下午1:46:20
*
*/
public class MainActivity extends Activity {
//读取二维码控件

private Button mBtn_erweima;
private TextView tView;//读取到的内容

//生成二维码控件
private Button btn_go;
private EditText input;
private ImageView img_two;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tView = (TextView) findViewById(R.id.tv_text);
mBtn_erweima = (Button) findViewById(R.id.btn_erweima);
mBtn_erweima.setOnClickListener(new OnClickListener() {

public void onClick(View v) {

// TODO Auto-generated method stub
// 启动扫描二维码的activity
Intent startScan = new Intent(MainActivity.this,
CaptureActivity.class);
// startActivity(startScan);需要返回值，所以暂时不用此方法
startActivityForResult(startScan, 1);

}
});
img_two = (ImageView) findViewById(R.id.img_erweima);
btn_go = (Button) findViewById(R.id.gen);
input = (EditText) findViewById(R.id.input);
btn_go.setOnClickListener(new OnClickListener() {

public void onClick(View v) {
// TODO Auto-generated method stub
String string = input.getText().toString();
if (string.equals("")) {
Toast.makeText(MainActivity.this, "内容为空，请重新输入", Toast.LENGTH_SHORT).show();
}else {
try {
//得到二维码图片并且展示
Bitmap bitmap = EncodingHandler.createQRCode(string, 400);
img_two.setImageBitmap(bitmap);
} catch (WriterException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
});
}
//返回结果的方法
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
String result = data.getExtras().getString("result");
tView.setText(result);
}

}
}

项目demo可运行下载地址：http://download.csdn.net/detail/qq_21376985/9511435