Flutter免权限悬浮窗,支持全局、单页面悬浮、支持边缘吸附,边缘吸附位置选择、位置保存、上下可滑动区域控制以及屏幕旋转窗口化后的位置修复等。The Flutter has no jurisdiction suspension window, supports global, single page suspension, edge adsorption, edge adsorption location selection, position preservation, control of the upper and lower sliding regions, and so on