ChromeView very very slow, and I can't even scroll.

[ghost]

V8 Engine works properly (WebSocket works)

ChromeView#onTouchEvent is called but I can't scroll.

@Override
public boolean onTouchEvent(final MotionEvent event) {
    final boolean h = super.onTouchEvent(event);
    Util.log(h + "");
    return h;
}

This print true on down and move, but false on up.

[cbsol]

For scrolling simple override the onDraw Methode org.chromium.android_webview.AwContents.java

to:

public void onDraw(Canvas canvas) { if (mNativeAwContents == 0) return; canvas.getClipBounds(mClipBoundsTemporary);

  if (!nativeOnDraw(mNativeAwContents, canvas, canvas.isHardwareAccelerated(),
              mContainerView.getScrollX(), mContainerView.getScrollY(),
              mClipBoundsTemporary.left, mClipBoundsTemporary.top,
              mClipBoundsTemporary.right, mClipBoundsTemporary.bottom )) {
      Log.w(TAG, "nativeOnDraw failed; clearing to background color.");
      int c = mContentViewCore.getBackgroundColor();
      canvas.drawRGB(Color.red(c), Color.green(c), Color.blue(c));
  }

}

[ghost]

Thank yout very much! How did you know that??

The problem was

mScrollOffsetManager.syncScrollOffsetFromOnDraw();

This syncs offset to top.

[cbsol]

The Problem was that the ChromeView Scrolls indeed but it does not update the UI so you cant see the scroll effect.

I was just looking for the onDraw and saw the mistake ;)