Android 二维码扫描

有个比较易用的Android 二维码扫描的开源库：

https://github.com/bingoogolapple/BGAQRCode-Android

它也是基于谷歌的zxing开源库的：

https://github.com/zxing/zxing

 

在grandle中添加依赖库：

compile 'pub.devrel:easypermissions:0.1.7'//用于请求相机权限
compile 'com.google.zxing:core:3.2.1'     //谷歌的zxing库
compile 'cn.bingoogolapple:bga-qrcodecore:1.1.7@aar'//bingoogolapple的库
compile 'cn.bingoogolapple:bga-zxing:1.1.7@aar'

 

 1 public class MainActivity extends AppCompatActivity implements EasyPermissions.PermissionCallbacks,QRCodeView.Delegate{
 2     private static final String TAG = "ActionsQRScanActivity";
 3     private static final int REQUEST_CODE_QRCODE_PERMISSIONS = 1;
 4     private long clickTime = 0; //记录第一次点击的时间
 5 
 6     private QRCodeView mQRCodeView;
 7 
 8     @Override
 9     protected void onCreate(Bundle savedInstanceState) {
10         super.onCreate(savedInstanceState);
11         setContentView(R.layout.activity_main);
12         mQRCodeView = (ZXingView) findViewById(R.id.zxingview);
13         mQRCodeView.setDelegate(this);
14 
15     }
16 
17     @Override
18     protected void onStart() {
19         super.onStart();
20         requestCodeQRCodePermissions();
21         mQRCodeView.startCamera();
22         mQRCodeView.startSpot();
23     }
24 
25     @Override
26     protected void onResume(){
27         mQRCodeView.showScanRect();
28         super.onResume();
29     }
30 
31     @Override
32     protected void onStop() {
33         mQRCodeView.stopCamera();
35         super.onStop();
36     }
37 
38     @Override
39     public void onScanQRCodeSuccess(String result) {
40         Log.i(TAG, "result:" + result);
41 
42     }
43 
44     @Override
45     public void onScanQRCodeOpenCameraError() {
46         Log.e(TAG, "open camera error!");
47     }
48 
49     @Override
50     public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
51         EasyPermissions.onRequestPermissionsResult(requestCode, permissions, grantResults, this);
52     }
53 
54     @Override
55     public void onPermissionsGranted(int requestCode, List<String> perms) {
56     }
57 
58     @Override
59     public void onPermissionsDenied(int requestCode, List<String> perms) {
60     }
61 
62     @AfterPermissionGranted(REQUEST_CODE_QRCODE_PERMISSIONS)
63     private void requestCodeQRCodePermissions() {
64         String[] perms = {Manifest.permission.CAMERA};
65         if (!EasyPermissions.hasPermissions(this, perms)) {
66             EasyPermissions.requestPermissions(this, getResources().getString(R.string.qrcode_permission), REQUEST_CODE_QRCODE_PERMISSIONS, perms);
67         }
68     }
69 
70     @Override
71     public boolean onKeyDown(int keyCode, KeyEvent event) {
72         if (keyCode == KeyEvent.KEYCODE_BACK) {
73             exit();
74             return true;
75         }
76         return super.onKeyDown(keyCode, event);
77     }
78 
79     private void exit() {
80         if ((System.currentTimeMillis() - clickTime) > 2000) {
81             Toast.makeText(getApplicationContext(), getResources().getString(R.string.exit_message),
82                     Toast.LENGTH_SHORT).show();
83             clickTime = System.currentTimeMillis();
84         } else {
85             Log.e(TAG, "exit application");
86             this.finish();
87         }
88     }
89 
90 
91     
92 
93 }

 

Activity主要实现的接口如下：

public interface PermissionCallbacks extends
                                         ActivityCompat.OnRequestPermissionsResultCallback {//授权成功失败回调

        void onPermissionsGranted(int requestCode, List<String> perms);

        void onPermissionsDenied(int requestCode, List<String> perms);

    }

 

public interface Delegate {//扫码成功返回的结果是result，打开相机失败的回调
        /**
         * 处理扫描结果
         *
         * @param result
         */
        void onScanQRCodeSuccess(String result);

        /**
         * 处理打开相机出错
         */
        void onScanQRCodeOpenCameraError();
    }

 

xml文件中的ZxingView

 1 <?xml version="1.0" encoding="utf-8"?>
 2     <cn.bingoogolapple.qrcode.zxing.ZXingView
 3     xmlns:android="http://schemas.android.com/apk/res/android"
 4     xmlns:app="http://schemas.android.com/apk/res-auto"
 5         android:id="@+id/zxingview"
 6         style="@style/MatchWrap"
 7         app:qrcv_animTime="1000"
 8         app:qrcv_barCodeTipText="将条码放入框内，即可自动扫描"
 9         app:qrcv_barcodeRectHeight="140dp"
10         app:qrcv_borderColor="@android:color/white"
11         app:qrcv_borderSize="1dp"
12         app:qrcv_cornerColor="@color/colorPrimaryDark"
13         app:qrcv_cornerLength="20dp"
14         app:qrcv_cornerSize="3dp"
15         app:qrcv_customScanLineDrawable="@drawable/scan_icon_scanline"
16         app:qrcv_isBarcode="false"
17         app:qrcv_isCenterVertical="false"
18         app:qrcv_isOnlyDecodeScanBoxArea="false"
19         app:qrcv_isScanLineReverse="true"
20         app:qrcv_isShowDefaultGridScanLineDrawable="false"
21         app:qrcv_isShowDefaultScanLineDrawable="true"
22         app:qrcv_isShowTipBackground="true"
23         app:qrcv_isShowTipTextAsSingleLine="false"
24         app:qrcv_isTipTextBelowRect="false"
25         app:qrcv_maskColor="#33FFFFFF"
26         app:qrcv_qrCodeTipText="@string/scan_tips"
27         app:qrcv_rectWidth="200dp"
28         app:qrcv_scanLineColor="@color/colorPrimaryDark"
29         app:qrcv_scanLineMargin="0dp"
30         app:qrcv_scanLineSize="0.5dp"
31         app:qrcv_tipTextColor="@android:color/white"
32         app:qrcv_tipTextSize="12sp"
33         app:qrcv_toolbarHeight="56dp"
34         app:qrcv_topOffset="60dp"/>

自定义属性代码的含义在这里可以找到：https://github.com/bingoogolapple/BGAQRCode-Android

感觉还是很简单的

 

 

 

 

 
posted @ 2017-02-22 19:18  george_cw  阅读(5527)  评论(0)  编辑  收藏  举报