Question

我需要获取NSPasteboard的对象并将其存储在某处，以便稍后将其放回剪贴板。我现在仅使用text属性来执行此操作。我想知道如何对任何对象执行此操作（例如：复制文件）。到目前为止，这是我获取代码并将其放回原处的代码：

NSString *pasteboardString;

//Save the value of the pasteboard
NSPasteboard *pasteboard= [NSPasteboard generalPasteboard];
pasteboardString= [pasteboard stringForType:NSStringPboardType];

//Clear the pasteboard
[pasteboard clearContents];

//Do some stuff with clipboard

//Write the old object back
if(pasteboardString!= NULL || pasteboardString.length != 0){
    [pasteboard declareTypes:[NSArray arrayWithObject:NSStringPboardType] owner:nil];
    [pasteboard setString:pasteboardString forType:NSStringPboardType];
}

Answer 1

我找到的最简单的方法是获取所有NSPasteboardItems的数组：

- (NSArray *)readFromPasteBoard
{
    NSMutableArray *pasteboardItems = [NSMutableArray array];
    for (NSPasteboardItem *item in [pasteboard pasteboardItems]) {
        //Create new data holder
        NSPasteboardItem *dataHolder = [[NSPasteboardItem alloc] init];
        //For each type in the pasteboard's items
        for (NSString *type in [item types]) {
            //Get each type's data and add it to the new dataholder
            NSData *data = [[item dataForType:type] mutableCopy];
            if (data) {
                [dataHolder setData:data forType:type];
            }
        }
        [pasteboardItems addObject:dataHolder];
    }
    return pasteboardItems;
}

从此页：Dissociating NSPasteboardItem from pasteboard

然后，您可以在剪贴板操作之后使用相同的数组写回粘贴板：[pasteboard writeObjects:arrayPasteboardItems];

这将放回之前复制的所有对象（甚至文件，文件夹等）。

从NSPasteboard Mac获取剪贴板的对象

1 个答案: