Android Scan two-dimensional code and production of two-dimensional code

Geek College scan QR code and generate two-dimensional code

Package Com.example.testqr;import Android.app.activity;import Android.content.intent;import Android.graphics.bitmap;import Android.os.bundle;import Android.view.menu;import Android.view.View;import Android.view.view.onclicklistener;import Android.widget.button;import Android.widget.imageview;import Android.widget.toast;import Com.google.zxing.writerexception;import Com.zxing.activity.captureactivity;import Com.zxing.encoding.encodinghandler;public class Mainactivity extends Activity {private button Startscan;private button    Generateqr;private ImageView Qrimageview;        @Override protected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);        Setcontentview (R.layout.activity_main);        Startscan = (Button) Findviewbyid (R.id.startscan);        GENERATEQR = (Button) Findviewbyid (R.id.generateqrcode);        Qrimageview = (ImageView) Findviewbyid (R.ID.QRIV); Startscan.setonclicklistener (New Onclicklistener () {@Overridepublic void OnClick (VieW view) {Intent Intent = new Intent (mainactivity.this,captureactivity.class); Startactivityforresult (Intent, 0);}});  Generateqr.setonclicklistener (New Onclicklistener () {@Overridepublic void OnClick (view view) {try {Bitmap Bitmap = Encodinghandler.createqrcode ("DotA"); Qrimageview.setimagebitmap (bitmap);}    catch (Writerexception e) {e.printstacktrace ();}}});        @Override public boolean Oncreateoptionsmenu (Menu menu) {getmenuinflater (). Inflate (R.menu.main, menu);    return true; } @Override protected void Onactivityresult (int requestcode, int resultcode, Intent data) {if (ResultCode = =    RESULT_OK) {String str = Data.getstringextra ("result");    Toast.maketext (mainactivity.this, str, 0). Show (); }    }    }

Main description
1: The library is in the Geek College material library is also under the Internet because the error changed the switch case to the IF else
2: Scan QR code is captureactivity
3: A method of generating a two-dimensional code

Bitmap Bitmap = Encodinghandler.createqrcode ("DotA", 400);
Qrimageview.setimagebitmap (bitmap);

　　

Android Scan two-dimensional code and production of two-dimensional code