Hello folks,
There appears to be a bug in focus handling when a WebView is
partially overlapping a ListView. I am able to reproduce this problem
via a simple change to one of the ApiDemos example.
If you change the file ApiDemos/res/layout/linear_layout_9.xml to be
as given below, and run the demo "Views/Layouts/LinearLayout/9.Layout
Weight", this change causes a WebView to be overlaid on top of the
list such that the list is partially obscured. Now, any mouse motions
on top of the WebView seem to make their way to the ListView. The
embedded WebView object never gets focus. for example, one can hold
the mouse on top of the WebView and cause the ListView (which is
obscured) to respond to scrolling action. If you replace the WebView
with a TextView instead, then the TextView intercepts all mouse events
as expected.
Any thoughts on where this bug lies and potential workarounds will be
greatly appreciated.
Thanks,
DS.
---linear_layout_9.xml---
<?xml version="1.0" encoding="utf-8"?>
<!--
Demonstrates a simple linear layout. The layout fills the screen,
with the
children stacked from the top.
-->
<AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android
"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ListView android:id="@+id/list"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1.0" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/linear_layout_9_button" />
<WebView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_x="500px"
android:layout_y="200px"
android:background="#FFFFFFFF"
android:clickable="true"
/>
</AbsoluteLayout>
<!--
* Copyright (C) 2007 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied.
* See the License for the specific language governing permissions and
* limitations under the License.
-->
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