在iOS開(kāi)發(fā)中，我們可能有需求需要長(zhǎng)按某個(gè)控件來(lái)復(fù)制內(nèi)容。

第一種情況，直接使用tableview的方法來(lái)調(diào)用系統(tǒng)的復(fù)制剪切那個(gè)功能。

-(BOOL)tableView:(UITableView *)tableView shouldShowMenuForRowAtIndexPath:(NSIndexPath *)indexPath

{

if (indexPath.section == 0 && indexPath.row !=0) {

return YES;

}

return NO;

}

-(BOOL)tableView:(UITableView *)tableView canPerformAction:(SEL)action forRowAtIndexPath:(NSIndexPath *)indexPath withSender:(id)sender

{

if (action == @selector(copy:)) {

return YES;

}

return NO;

}

-(void)tableView:(UITableView *)tableView performAction:(SEL)action forRowAtIndexPath:(NSIndexPath *)indexPath withSender:(id)sender

{

if (action == @selector(copy:)) {

UsermessageCell *messageCell = (UsermessageCell *)[tableView cellForRowAtIndexPath:indexPath];

[UIPasteboard generalPasteboard].string =messageCell.messageLab.text;

}

}

第二種是自定義(這里主要是改掉系統(tǒng)拷貝的名字為復(fù)制)

//在自定義cell中的init方法加入
UILongPressGestureRecognizer *longPressGesture = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPressCellHandle:)];

self.longGesture = longPressGesture;

[self addGestureRecognizer:longPressGesture];

//并加上幾個(gè)方法

-(void)longPressCellHandle:(UILongPressGestureRecognizer *)gesture

{

[self becomeFirstResponder];

UIMenuController *menuController = [UIMenuController sharedMenuController];

UIMenuItem *copyItem = [[UIMenuItem alloc] initWithTitle:@"復(fù)制" action:@selector(menuCopyBtnPressed:)];

menuController.menuItems = @[copyItem];

[menuController setTargetRect:gesture.view.frame inView:gesture.view.superview];

[menuController setMenuVisible:YES animated:YES];

[UIMenuController sharedMenuController].menuItems=nil;

}

-(void)menuCopyBtnPressed:(UIMenuItem *)menuItem

{

[UIPasteboard generalPasteboard].string = self.messageLab.text;

}

-(BOOL)canBecomeFirstResponder

{

return YES;

}

-(BOOL)canPerformAction:(SEL)action withSender:(id)sender

{

if (action == @selector(menuCopyBtnPressed:)) {

return YES;

}

return NO;

}