尽管fragment的实现独立于activity，可被多个activity复用，但每个activity中实际包含的是该fragment的不同实例，彼此之间相互独立，互不影响。 1、 要在Activity中展示Fragment，必须将其添加到Activity内。添加方式主要有两种：一种是通过XML布局文件静态添加，另一种是在 ...

Historically, transitions between activities and fragments in Android involved animating the entire view hierarchy. However, with Material Design, it is now easier to animate selected Views during a ...