Android二维码工具zxing使用安卓整理

二维码在我们生活中随处可见，在我眼里简直可以用“泛滥”来形容啦！那如何在我们Android项目中扫描识别二维码或生成二维码图片呢？我们通常使用的开源框架是zxing。在github上的开源地址：https://github.com/zxing/zxing，目前在做的项目中也用到这个框架，所以自己做了个demo，方便学习及下次使用。

识别二维码

/** * 扫描二维码示例 */ public class ScanCodeActivity extends Activity implements View.OnClickListener { private Button start_scan; private TextView result_tv; private final static int REQUEST_CODE = 100; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_scan); this.start_scan = (Button) findViewById(R.id.start_scan); this.result_tv = (TextView) findViewById(R.id.result_tv); this.start_scan.setOnClickListener(this); }@Override public void onClick(View v) { if (v.getId() == R.id.start_scan) { //zxing框架已经帮我们封装好对应的实现类，直接调用startActivityForResult即可 Intent intent = new Intent(this, CaptureActivity.class); startActivityForResult(intent, REQUEST_CODE); } }/** * 在onActivityResult中处理数据 * @param requestCode * @param resultCode * @param data */ @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (resultCode == RESULT_OK && requestCode == REQUEST_CODE) { Bundle bundle = data.getExtras(); String scanResult = bundle.getString("result"); this.result_tv.setText(scanResult); } super.onActivityResult(requestCode, resultCode, data); } }

生成二维码：

/** * 生成二维码示例 */ public class MadeCodeActivity extends Activity implements View.OnClickListener { private EditText code_edt; private Button made_code; private ImageView result_iv; private CheckBox logo_cb; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_made); this.code_edt = (EditText) findViewById(R.id.code_edt); this.made_code = (Button) findViewById(R.id.made_code); this.result_iv = (ImageView) findViewById(R.id.result_iv); logo_cb = (CheckBox) findViewById(R.id.logo_cb); this.made_code.setOnClickListener(this); }@Override public void onClick(View v) { if (v.getId() == R.id.made_code) { String content = code_edt.getText().toString().trim(); boolean isAddLogo = logo_cb.isChecked(); if (TextUtils.isEmpty(content)) { Toast.makeText(this, "输入内容不能为空", Toast.LENGTH_LONG).show(); return; } madeCode(content, isAddLogo); } }/** * 生成二维码 * * @param content要生成图片的文字内容 * @param isAddLogo 是否在二维码中添加LOGO图片 */ private void madeCode(String content, boolean isAddLogo) { String bitmapPath; if (!isAddLogo) {//不带LOGO bitmapPath = EncodeUtil.createQRImage(this, content, 300, 300, null); } else {//带Logo，R.mipmap.ic_launcher就是LOGO对应图片，自行添加 bitmapPath = EncodeUtil.createQRImage(this, content, 300, 300, BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher)); } if (!TextUtils.isEmpty(bitmapPath)) { result_iv.setImageBitmap(BitmapFactory.decodeFile(bitmapPath)); } } }

【Android二维码工具zxing使用】完成的项目（AndroidStudio项目）下载地址：
http://download.csdn.net/detail/true100/9487162