Android QR code tool zxing use

二维码在我们生活中随处可见。在我眼里简直能够用“泛滥”来形容啦。那怎样在我们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，眼下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。

Identify QR code

 /** * Scan QR Code demo sample */ Public  class scancodeactivity extends Activity implements View. Onclicklistener {    PrivateButton Start_scan;PrivateTextView Result_tv;Private Final Static intRequest_code = -;@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) {The//zxing framework has helped us encapsulate the corresponding implementation class. Call Startactivityforresult directly toIntent Intent =NewIntent ( This, Captureactivity.class);        Startactivityforresult (Intent, Request_code); }    }/** * Processing data in Onactivityresult * @param requestcode * @param resultcode * @param 
       Data * /    @Override    protected void Onactivityresult(intRequestcode,intResultCode, 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); }}

Generate two-dimensional code:

/** * Generate two-dimensional Code demo sample * / Public  class madecodeactivity extends Activity implements View . Onclicklistener {    PrivateEditText Code_edt;PrivateButton Made_code;PrivateImageView Result_iv;PrivateCheckBox 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 ();BooleanIsaddlogo = logo_cb.ischecked ();if(Textutils.isempty (content)) {Toast.maketext ( This,"Input cannot be empty", Toast.length_long). Show ();return;        } madecode (content, Isaddlogo); }    }/** * Generate QR Code * * @param content to generate text contents of a picture * @param Isaddlogo Whether to add logo image in QR code * /    Private void Madecode(String content,BooleanIsaddlogo) {String bitmappath;if(!isaddlogo) {//Without logoBitmappath = Encodeutil.createqrimage ( This, Content, -, -,NULL); }Else{//With Logo,r.mipmap.ic_launcher is the logo corresponding image, to joinBitmappath = Encodeutil.createqrimage ( This, Content, -, -, Bitmapfactory.decoderesource (Getresources (), r.mipmap.ic_launcher)); }if(!        Textutils.isempty (Bitmappath)) {Result_iv.setimagebitmap (Bitmapfactory.decodefile (BitmapPath)); }    }}

Completed project (Androidstudio project):
http://download.csdn.net/detail/true100/9487162

Android QR code tool zxing use