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