virtualBoard示例的错误-QBackingStore::endPaint

-西门吹雪

已于 2022-02-22 18:25:03 修改

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分类专栏： qt经验文章标签： QBackingStore

于 2022-02-22 18:20:48 首次发布

本文原创作者：-西门吹雪 MMTS_yang

本文链接：https://blog.youkuaiyun.com/MMTS_yang/article/details/123074231

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官方示例virtualBoard在部分设备上虚拟键盘显示异常。通过修复QBackingStore::endPaint问题，键盘能显示但仍有未解决的问题。在输入特定语言后隐藏键盘，再点击数字输入时，数字软件盘的文字预览栏出现残缺。

官方示例virtualBoard

虚拟键盘在有些板子上不显示，添加如下QQuickWindow::setSceneGraphBackend(QSGRendererInterface::Software);后可显示，但是运行时出现两个问题。

问题

问题1

QML debugging is enabled. Only use this in a safe environment.
QBackingStore::endPaint() called with active painter on backingstore paint device
QBackingStore::endPaint() called with active painter on backingstore paint device
QBackingStore::endPaint() called with active painter on backingstore paint device
QBackingStore::endPaint() called with active painter on backingstore paint device
QBackingStore::endPaint() called with active painter on backingstore paint device
QBackingStore::endPaint() called with active painte

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