<dependency>
  <groupId>cn.6xyun.android</groupId>
  <artifactId>qrcode</artifactId>
  <version>0.2.1</version>
  <type>aar</type>
</dependency>

implementation 'cn.6xyun.android:qrcode:0.2.1'

implementation("cn.6xyun.android:qrcode:0.2.1")

libraryDependencies += "cn.6xyun.android" % "qrcode" % "0.2.1"

@Grapes(
  @Grab(group='cn.6xyun.android', module='qrcode', version='0.2.1')
)

<dependency org="cn.6xyun.android" name="qrcode" rev="0.2.1" />

[cn.6xyun.android/qrcode "0.2.1"]

'cn.6xyun.android:qrcode:jar:0.2.1'