由于未捕获的异常 'NSInvalidArgumentException' 而终止应用程序,原因:“尝试滚动到无效的索引路径
Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'attempt to scroll to invalid index path
我的应用程序崩溃了,我的 UICollectionView
中有 300 个单元格,而我 select 单元格号。 300 向我展示这次崩溃:
Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'attempt to scroll to invalid index path: {length = 2, path = 0 - 300}'
代码:
var EnabledID = Int()
EnabledID = UserDefaults.standard.integer(forKey: "EnabledID")
if EnabledID == 0 {
EnabledID = 1
UserDefaults.standard.set(1, forKey: "EnabledID")
} else {
let index = NSIndexPath(item: EnabledID, section: 0)
self.myCollectionView.scrollToItem(at: index as IndexPath, at: .centeredHorizontally, animated: true)
}
请帮我解决这个问题:)
检查数组计数
if EnabledID < arr.count
{
let index = NSIndexPath(item: EnabledID, section: 0)
self.myCollectionView.scrollToItem(at: index as IndexPath, at: .centeredHorizontally, animated: true)
}
我的应用程序崩溃了,我的 UICollectionView
中有 300 个单元格,而我 select 单元格号。 300 向我展示这次崩溃:
Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'attempt to scroll to invalid index path: {length = 2, path = 0 - 300}'
代码:
var EnabledID = Int()
EnabledID = UserDefaults.standard.integer(forKey: "EnabledID")
if EnabledID == 0 {
EnabledID = 1
UserDefaults.standard.set(1, forKey: "EnabledID")
} else {
let index = NSIndexPath(item: EnabledID, section: 0)
self.myCollectionView.scrollToItem(at: index as IndexPath, at: .centeredHorizontally, animated: true)
}
请帮我解决这个问题:)
检查数组计数
if EnabledID < arr.count
{
let index = NSIndexPath(item: EnabledID, section: 0)
self.myCollectionView.scrollToItem(at: index as IndexPath, at: .centeredHorizontally, animated: true)
}