...

app/src/main/java/com/base/pdfviewerscannerwhite/ui/cleanjunk/ScanJunkActivity.kt

@@ -83,7 +83,10 @@ class ScanJunkActivity : BaseActivity<ActivityScanJunkBinding>() {
         //record last use junk clean function time
         AppPreferences.getInstance().put("last_use_junk_clean", System.currentTimeMillis())
         beginScan()
+
+        binding.root.postDelayed({
             AdmobInterstitialUtils.showInterstitialAd(this)
+        }, 2000)
     }
 
     override fun initListener() {