WebViewer crashing on Memu emulator [Android 5.1.1]

vknow360 · March 30, 2021, 2:13pm

Same blocks work on Android 4.4 in real phone but not on emulator, in companion.
Here is the logcat:


D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https
ewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

W/cr_BindingManager(10434): Cannot call determinedVisibility() - never saw a connection for the pid: 10434

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = https

D/HoneycombWebViewClient(10434): scheme = blob

W/System.err(10434): java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.lang.String.equals(java.lang.Object)' on a null object reference

W/System.err(10434): 	at com.google.appinventor.components.runtime.util.HoneycombWebViewClient.shouldInterceptRequest(HoneycombWebViewClient.java:48)

W/System.err(10434): 	at com.android.webview.chromium.WebViewContentsClientAdapter.shouldInterceptRequest(WebViewContentsClientAdapter.java:307)

W/System.err(10434): 	at org.chromium.android_webview.AwContents$BackgroundThreadClientImpl.shouldInterceptRequest(AwContents.java:523)

W/System.err(10434): 	at org.chromium.android_webview.AwContentsBackgroundThreadClient.shouldInterceptRequestFromNative(AwContentsBackgroundThreadClient.java:38)

It is from this line:

github.com

mit-cml/appinventor-sources/blob/f430979379612f663d339ef064bb7760dd5f0f21/appinventor/components/src/com/google/appinventor/components/runtime/util/HoneycombWebViewClient.java#L48


  if (url.startsWith("http://localhost/") || url.startsWith(ASSET_PREFIX)) {
    return handleAppRequest(url);
  }
  return super.shouldInterceptRequest(view, url);
}


@androidx.annotation.RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
@Override
public WebResourceResponse shouldInterceptRequest(WebView view, WebResourceRequest request) {
  Log.d(TAG, "scheme = " + request.getUrl().getScheme());
  if (request.getUrl().getAuthority().equals("localhost")
      || request.getUrl().toString().startsWith(ASSET_PREFIX)) {
    return handleAppRequest(request.getUrl().toString());
  }
  return super.shouldInterceptRequest(view, request);
}


protected WebResourceResponse handleAppRequest(String url) {
  String path;
  if (url.startsWith(ASSET_PREFIX)) {
    path = url.substring(ASSET_PREFIX.length());

ewpatton · March 30, 2021, 3:09pm

Seems like it should be easy to fix if the equality check is inverted, e.g.,

"localhost".equals(request.getUrl().getAuthority())

system · April 6, 2021, 3:10pm

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