fix UI

app/build.gradle

@@ -70,6 +70,10 @@ android {
         jvmTarget = '1.8'
     }
 
+    buildFeatures{
+        viewBinding = true
+    }
+
 }
 
 configurations.all {

app/src/main/java/com/tuya/appsdk/sample/user/login/UserLoginActivity.kt

@@ -28,12 +28,7 @@ import com.thingclips.smart.android.user.api.ILoginCallback
 import com.thingclips.smart.android.user.bean.User
 import com.thingclips.smart.home.sdk.ThingHomeSdk
 
-/**
- * User Login Example
- *
- * @author qianqi <a href="mailto:developer@tuya.com">Contact me.</a>
- * @since 2021/1/5 5:13 PM
- */
+
 class UserLoginActivity : AppCompatActivity(), View.OnClickListener {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)