getSupportFragmentManager.getBackStackEntryCount()作用

【getSupportFragmentManager.getBackStackEntryCount()作用】

getSupportFragmentManager.getBackStackEntryCount()作用

文章插图
GetSupportFragmentManager() 。GetBackStackentryCount()函数GetSupportFragmentManager() 。GetBackStackerCount()函数描述:当我分别添加ft.add(,)或ft.replace(,)时,指定的区域应该被替换,但是GetSupportFragmentManager() 。GetBackStack