zxing二维码

1.依赖

implementation ‘cn.bingoogolapple:bga-qrcode-zxing:1.2.1’

2.布局

<cn.bingoogolapple.qrcode.zxing.ZXingView
        android:id="@+id/zxingview"
        app:qrcv_animTime="1000"
        app:qrcv_borderColor="@android:color/white"
        app:qrcv_borderSize="1dp"
        app:qrcv_cornerColor="@color/colorPrimaryDark"
        app:qrcv_cornerLength="20dp"
        app:qrcv_cornerSize="3dp"
        app:qrcv_maskColor="#33FFFFFF"
        app:qrcv_rectWidth="200dp"
        app:qrcv_scanLineColor="@color/colorPrimaryDark"
        app:qrcv_scanLineSize="1dp"
        app:qrcv_topOffset="90dp"
        android:layout_height="wrap_content"
        android:layout_width="wrap_content" />

3.代码

public class MainActivity extends AppCompatActivity implements QRCodeView.Delegate {
private ZXingView mZxingview;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    initView();
}

private void initView() {
    mZxingview = findViewById(R.id.zxingview);
    mZxingview.setDelegate(this);

    //动态权限
    String[] p = new String[]{Manifest.permission.CAMERA};
    ActivityCompat.requestPermissions(MainActivity.this, p, 1);

}

@Override
public void onScanQRCodeSuccess(String result) {
    Toast.makeText(MainActivity.this, result, Toast.LENGTH_LONG).show();
}

@Override
public void onScanQRCodeOpenCameraError() {

}

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    if (grantResults.length > 0) {
        int result = grantResults[0];
        if (result == PackageManager.PERMISSION_GRANTED) {
            //权限同意
            mZxingview.startSpot();
        } else {
            //权限拒绝
            Toast.makeText(MainActivity.this, "请同意打开摄像头权限", Toast.LENGTH_SHORT).show();
        }
    }
}

}