Two-dimensional code generation and scanning

Download class library Https://yunpan.cn/cBAZaMg5t2BXH access password 5a55

1. Add the settings.gradle in the outer layer of the project

Include ': App ', ': libzxing '


2.libzxing Build.gradle in the same version as your app

Compilesdkversion 23
Buildtoolsversion "23.0.3"

Defaultconfig {
    Minsdkversion 15
    Targetsdkversion 23


3. In Build.gradle's

Dependencies add

Compile project (': Libzxing ')



In the layout

<?xml version="1.0"encoding="Utf-8"? ><linearlayout xmlns:android="http://schemas.android.com/apk/res/android"Xmlns:tools="Http://schemas.android.com/tools"Android:layout_width="match_parent"Android:layout_height="match_parent"android:orientation="Vertical"Tools:context=". Mainactivity"> <Button android:layout_width="match_parent"Android:layout_height="wrap_content"Android:text="Scan Two-dimensional code"Android:id="@+id/btn_scan"Android:layout_alignparentleft="true"Android:layout_alignparentstart="true"Android:onclick="Scan"/> <TextView android:layout_width="wrap_content"Android:layout_height="wrap_content"Android:text="---Display the scan results----"android:textsize="22DP"Android:id="@+id/tv_scanresult"/> <EditText android:layout_width="match_parent"Android:layout_height="wrap_content"Android:id="@+id/et_text"Android:hint="here Please enter the content you want to generate QR code"/> <CheckBox android:layout_width="wrap_content"Android:layout_height="wrap_content"Android:text="whether the QR code should contain the image logo"Android:id="@+id/cb_includelogo"android:checked="false"/> <Button android:layout_width="fill_parent"Android:layout_height="wrap_content"Android:text="generate two-dimensional code QRCode"Android:id="@+id/btn_createqrcode"Android:onclick="Createqrode"/> <ImageView android:layout_width="wrap_content"Android:layout_height="wrap_content"Android:id="@+id/imgv_qrcode"android:layout_gravity="Center_horizontal"Android:background="@mipmap/appicon"/></linearlayout>

In activity

Package Tests.bwie.com.mygridview;import Android.content.intent;import android.graphics.bitmap;import Android.graphics.bitmapfactory;import Android.support.v7.app.appcompatactivity;import Android.os.Bundle;import Android.view.view;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; Public classZxingactivity extends Appcompatactivity {PrivateButton Btn_scan; PrivateTextView Tv_scanresult; PrivateEditText Et_text; PrivateCheckBox Cb_include; PrivateButton Btn_createsrcode; PrivateImageView Iv_qrcode; @Overrideprotected voidonCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);        Setcontentview (r.layout.activity_zxing); //Find ControlsFindcomp (); }    Private voidFindcomp () {Btn_scan=(Button) Findviewbyid (R.id.btn_scan); Tv_scanresult=(TextView) Findviewbyid (R.id.tv_scanresult); Et_text=(EditText) Findviewbyid (R.id.et_text); Cb_include=(CheckBox) Findviewbyid (R.id.cb_includelogo); Btn_createsrcode=(Button) Findviewbyid (R.id.btn_createqrcode); Iv_qrcode=(ImageView) Findviewbyid (R.id.imgv_qrcode); }    //direct call to third-party Zxing library API for scanning     Public voidScan (view view) {Startactivityforresult (NewIntent (zxingactivity. This, captureactivity.class),0); } @Overrideprotected voidOnactivityresult (intRequestcode,intResultCode, Intent data)        {Super.onactivityresult (Requestcode, ResultCode, data); if(resultcode==RESULT_OK) {Bundle Bundle=data.getextras ();//retrieve the scanned result data through the bundleString sresult=bundle.getstring ("result");            Tv_scanresult.settext (Sresult); System. out. println ("viewing read values"+Sresult); }    }     Public voidCreateqrode (view view) {String SInput=Et_text.gettext (). toString (); if(Sinput.equals ("") {toast.maketext (zxingactivity). This,"You have not entered the QR code to generate, please enter the content to generate the QR code", Toast.length_short). Show (); }Else{            if(cb_include.ischecked () = =false){                //call the Createqrcode of the Zxing class library to generate a QR code----does not contain a pictureBitmap bitmap= Encodingutils.createqrcode (SInput, -, -,NULL);            Iv_qrcode.setimagebitmap (bitmap); }Else{                //call the Createqrcode of the Zxing class library to generate a two-dimensional code----include picturesBitmap bitmap= Encodingutils.createqrcode (SInput, -, -, Bitmapfactory.decoderesource (Getresources (), R.mipmap.appicon));            Iv_qrcode.setimagebitmap (bitmap); }        }    }}

Two-dimensional code generation and scanning