Justson/AgentWeb · error · IllegalStateException

please check webcreator's create method was be called ?

Error message

please check webcreator's create method was be called ?

What it means

AgentWebUtils.getWebParentLayoutByWebView throws IllegalStateException when the given WebView has no parent ViewGroup, meaning it was never attached through AgentWeb's create() flow. The method walks up the view hierarchy to find the WebParentLayout; without a parent it cannot locate AgentWeb's internal UI controller. The message points to the create method because AgentWeb's create() is what attaches the WebView.

Solutions

1. Only call this utility with a WebView produced and attached by AgentWeb (after createAgentWeb().go())
2. Verify webView.getParent() != null before calling
3. If you must use a custom WebView, integrate it via AgentWeb's builder (setWebView) rather than standalone
4. Move utility calls out of teardown phases (onDestroyView/onDetach) where the view is already unparented

Example fix

// before
AgentWebUtils.getWebParentLayoutByWebView(myStandaloneWebView); // parent is null
// after
if (myStandaloneWebView.getParent() instanceof ViewGroup) {
    AgentWebUtils.getWebParentLayoutByWebView(myStandaloneWebView);
}

if (!(webView.getParent() instanceof ViewGroup)) { return; }

boolean webviewAttachedByAgentWeb(WebView w) { return w != null && w.getParent() instanceof ViewGroup; }

try { WebParentLayout l = AgentWebUtils.getWebParentLayoutByWebView(wv); } catch (IllegalStateException e) { Log.w(TAG, "webview not attached via AgentWeb", e); }

When it happens

Trigger: Calling AgentWebUtils APIs that take a WebView (e.g. permission/UI-controller helpers) with a WebView created outside AgentWeb, or before createAgentWeb().go()/create() attached it, or after it was removed from its parent.

Common situations: Using AgentWebUtils with a plain manually-instantiated WebView, calling utility methods in a Fragment's onDestroy after the view tree was torn down, or invoking before AgentWeb's ready()/go() completes.

Understand the failure class

Background: "Invalid state transition" errors: "status must be X, actually Y", "already rejected/charging/uninstalled", "cannot ... while running" — what they mean when a library rejects your call — this error's family across 31 libraries.

Related errors

• activity can not be null .
• ViewGroup is null,Please check your parameters .
• injected name can not be null
• the WebView related to the JsCallback has been recycled
• the JsCallback isn't permanent,cannot be called more than…

AI-assisted analysis of Justson/AgentWeb@8f7f6adbf0 (2026-09-11). Data as JSON: /api/errors/b592d0b5a2c7819c. Report an issue: GitHub.

Appendix: source

Thrown at agentweb-core/src/main/java/com/just/agentweb/AgentWebUtils.java:830

	//获取应用的名称
	public static String getApplicationName(Context context) {
		PackageManager packageManager = null;
		ApplicationInfo applicationInfo = null;
		try {
			packageManager = context.getApplicationContext().getPackageManager();
			applicationInfo = packageManager.getApplicationInfo(context.getPackageName(), 0);
		} catch (PackageManager.NameNotFoundException e) {
			applicationInfo = null;
		}
		String applicationName =
				(String) packageManager.getApplicationLabel(applicationInfo);
		return applicationName;
	}

	static WebParentLayout getWebParentLayoutByWebView(WebView webView) {
		ViewGroup mViewGroup = null;
		if (!(webView.getParent() instanceof ViewGroup)) {
			throw new IllegalStateException("please check webcreator's create method was be called ?");
		}
		mViewGroup = (ViewGroup) webView.getParent();
		AbsAgentWebUIController mAgentWebUIController;
		while (mViewGroup != null) {

			LogUtils.i(TAG, "ViewGroup:" + mViewGroup);
			if (mViewGroup.getId() == R.id.web_parent_layout_id) {
				WebParentLayout mWebParentLayout = (WebParentLayout) mViewGroup;
				LogUtils.i(TAG, "found WebParentLayout");
				return mWebParentLayout;
			} else {
				ViewParent mViewParent = mViewGroup.getParent();
				if (mViewParent instanceof ViewGroup) {
					mViewGroup = (ViewGroup) mViewParent;
				} else {
					mViewGroup = null;
				}
			}

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