cocoa - 检测拖动项目的路径

Question

如何检测拖动项目(文件或文件夹)的路径？

当这条路径被扔到一个区域时可以被抓取吗？

Answer 1

参见Drag and Drop Programming Topics - Receiving Drag Operations进行介绍。当文件被删除时，您会从粘贴板收到一组文件。示例摘录:

- (BOOL)performDragOperation:(id <NSDraggingInfo>)sender {    
    NSPasteboard *pboard;    
    NSDragOperation sourceDragMask;

    sourceDragMask = [sender draggingSourceOperationMask];    
    pboard = [sender draggingPasteboard];

    if ( [[pboard types] containsObject:NSFilenamesPboardType] ) {
        NSArray *files = [pboard propertyListForType:NSFilenamesPboardType];
        // ...