...

app/src/main/java/com/base/pdfviewerscannerwhite/ui/document/pdf/PdfActivity.kt

@@ -15,6 +15,7 @@ import android.view.inputmethod.EditorInfo
 import androidx.activity.addCallback
 import androidx.core.content.ContextCompat
 import androidx.core.widget.addTextChangedListener
+import androidx.lifecycle.lifecycleScope
 import com.artifex.mupdfdemo.Annotation
 import com.artifex.mupdfdemo.Hit
 import com.artifex.mupdfdemo.MuPDFCore
@@ -42,6 +43,9 @@ import com.base.pdfviewerscannerwhite.utils.LogEx
 import com.base.pdfviewerscannerwhite.utils.SpStringUtils
 import com.base.pdfviewerscannerwhite.utils.SpStringUtils.LAST_VIEW_KEY
 import com.base.pdfviewerscannerwhite.utils.ToastUtils.toast
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.launch
 import java.io.File
 
 
@@ -118,6 +122,10 @@ class PdfActivity : BaseActivity<ActivityPdfBinding>(), PdfView {
 
         if (!haveGuideGesture) {
             binding.flGuideGesture.visibility = View.VISIBLE
+            lifecycleScope.launch(Dispatchers.Main) {
+                delay(2000)
+                binding.flGuideGesture.visibility = View.GONE
+            }
         }
 
         AdmobNativeUtils.showNativeAd(this, binding.flAd, R.layout.layout_admob_document_in)