Dont recreate WebView on configuration changed #119

app/src/main/AndroidManifest.xml

@@ -64,6 +64,7 @@
 		</activity>
 		<activity
 			android:name="org.koitharu.kotatsu.browser.BrowserActivity"
+			android:configChanges="orientation|screenSize|screenLayout|keyboardHidden"
 			android:windowSoftInputMode="adjustResize" />
 		<activity
 			android:name="org.koitharu.kotatsu.settings.sources.auth.SourceAuthActivity"

app/src/main/java/org/koitharu/kotatsu/browser/BrowserActivity.kt

@@ -29,6 +29,9 @@ class BrowserActivity : BaseActivity<ActivityBrowserBinding>(), BrowserCallback
 			javaScriptEnabled = true
 		}
 		binding.webView.webViewClient = BrowserClient(this)
+		if (savedInstanceState != null) {
+			return
+		}
 		val url = intent?.dataString
 		if (url.isNullOrEmpty()) {
 			finishAfterTransition()
@@ -41,6 +44,16 @@ class BrowserActivity : BaseActivity<ActivityBrowserBinding>(), BrowserCallback
 		}
 	}
 
+	override fun onSaveInstanceState(outState: Bundle) {
+		super.onSaveInstanceState(outState)
+		binding.webView.saveState(outState)
+	}
+
+	override fun onRestoreInstanceState(savedInstanceState: Bundle) {
+		super.onRestoreInstanceState(savedInstanceState)
+		binding.webView.restoreState(savedInstanceState)
+	}
+
 	override fun onCreateOptionsMenu(menu: Menu): Boolean {
 		menuInflater.inflate(R.menu.opt_browser, menu)
 		return super.onCreateOptionsMenu(menu)
@@ -82,6 +95,11 @@ class BrowserActivity : BaseActivity<ActivityBrowserBinding>(), BrowserCallback
 		binding.webView.onResume()
 	}
 
+	override fun onDestroy() {
+		super.onDestroy()
+		binding.webView.destroy()
+	}
+
 	override fun onLoadingStateChanged(isLoading: Boolean) {
 		binding.progressBar.isVisible = isLoading
 	}