39、移动应用中光栅图形处理与保存的深入解析

移动应用中光栅图形处理与保存的深入解析

1. 程序从墓碑状态恢复

当程序从墓碑状态恢复时，会执行反向的处理流程。以相关代码为例：

protected override void OnNavigatedTo(NavigationEventArgs args) { object objHaveValidTileImages; if (appService.State.TryGetValue("haveValidTileImages", out objHaveValidTileImages) && (bool)objHaveValidTileImages) { emptyRow = (int)appService.State["emptyRow"]; emptyCol = (int)appService.State["emptyCol"]; for (int row = 0; row < VERT_TILES; row++) for (int col = 0; col < HORZ_TILES; col++) if (col != emptyCol || row != emptyRow) { byte[] buffer = (byte[])appService.State[TileKey(row, col)]; MemoryStream stream = new