They also need to be able to track state in the application , identify calling screens for wizards or modal dialogs , and properly capture reverse - navigation events back buttons 它們還必須能夠跟蹤應用程序中的狀態(tài),標識向導或模式對話框的調用屏幕,并正確捕獲反導航事件(后退按鈕) 。
Because most stacks are the same , you don t actually have to store very much data - at most a few thousand strings - identifying call stacks and the associated numbers of instances linked to each stack 因為多數(shù)棧都是相同的,標識調用棧以及鏈接到每個棧的相關實例個數(shù)需要存儲的數(shù)據(jù)并不很多(最多幾千個字符串) 。