二维码之 ZXing

package com.gaoo.zxingcode;import android.content.Intent;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.text.TextUtils;import android.view.View;import android.webkit.WebView;import android.widget.Button;import android.widget.CheckBox;import android.widget.EditText;import android.widget.ImageView;import android.widget.TextView;import android.widget.Toast;import com.xys.libzxing.zxing.activity.CaptureActivity;import com.xys.libzxing.zxing.encoding.EncodingUtils;/** * 二维码的 学习和使用 */public class MainActivity extends AppCompatActivity {    Button btnScan, btnMake;    WebView webview;    TextView show;    ImageView image;    EditText input;CheckBox logo;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        btnScan = (Button) findViewById(R.id.btn_scan);        btnMake = (Button) findViewById(R.id.btn_make);        show = (TextView) findViewById(R.id.tv_show);        webview = (WebView) findViewById(R.id.webview);        image = (ImageView) findViewById(R.id.iv_image);        input = (EditText) findViewById(R.id.et_input);        logo = (CheckBox) findViewById(R.id.cb_logo);        initListener(); //按钮事件监听    }    private void initListener() {        //扫描二维码        btnScan.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                startActivityForResult(new Intent(MainActivity.this, CaptureActivity.class), 0);            }        });        //生成二维码        btnMake.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {               //获取输入的数据                String str = input.getText().toString();                if (TextUtils.isEmpty(str)) {                    Toast.makeText(MainActivity.this, "输入内容不能为空", Toast.LENGTH_SHORT).show();                }else{                    Bitmap bitmap = EncodingUtils.createQRCode(                            str, //输入的内容                            500, //二维码宽                            500, //二维码 高                            logo.isChecked()? //logo图标                                    BitmapFactory.decodeResource(getResources(),R.mipmap.icon):                                    null); //这里表示是否添加图标 不显示图片传 null 如果显示则需要bitmao                    image.setImageBitmap(bitmap);                }            }        });    }    @Override    protected void onActivityResult(int requestCode, int resultCode, Intent data) {        super.onActivityResult(requestCode, resultCode, data);        if (resultCode == RESULT_OK) {            Bundle bundle = data.getExtras();            String result = bundle.getString("result"); //把该文本显示到textview            show.setText(result);//            if (result.startsWith("http")){//                webview.setWebViewClient(new WebViewClient() {//                    @Override//                    public boolean shouldOverrideUrlLoading(WebView view, String url) {//                        view.loadUrl(url); // 根据传入的参数再去加载新的网页//                        return true; // 表示当前WebView可以处理打开新网页的请求，不用借助系统浏览器//                    }//                });//                webview.loadUrl(result);//            }        }    }}

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二维码库 源码 [http://pan.baidu.com/s/1o7WkitO ] 密码 gab5