苹果和安卓手机光标显示不一致

[abings]

在iPhone 和 安卓上，两个光标的高度不一致，苹果上录入 无抖动，安卓上回会抖动
苹果手机光标截图：

安卓手机光标截图

[zmtzawqlp]

as design，官方就这样设计的，安卓会比ios 上下各小 2.0

[zmtzawqlp]

// TODO(garyq): This is no longer producing the highest-fidelity caret
// heights for Android, especially when non-alphabetic languages
// are involved. The current implementation overrides the height set
// here with the full measured height of the text on Android which looks
// superior (subjectively and in terms of fidelity) in _paintCaret. We
// should rework this properly to once again match the platform. The constant
// _kCaretHeightOffset scales poorly for small font sizes.
//
/// On iOS, the cursor is taller than the cursor on Android. The height
/// of the cursor for iOS is approximate and obtained through an eyeball
/// comparison.

[zmtzawqlp]

我先改成一致高度好了，我看了下安卓系统内部的光标