问题描述
我正在尝试在名为addToPlaylist和removeFromPlayList的UITableViewCell中设置2个UIButtons（在刷卡后将它们设置为向右动画）并使用如下块：
I am trying to animate 2 UIButtons in a UITableViewCell called addToPlaylist and removeFromPlayList (they animate off to the right after being swiped on) and am using a block as follows
[UIView animateWithDuration:0.25 animations:^{
self.addToPlaylist.center = CGPointMake(contentsSize.width + (buttonSize.width / 2), (buttonSize.height / 2));
self.removeFromPlaylist.center = CGPointMake(contentsSize.width + (buttonSize.width / 2), (buttonSize.height / 2));
myImage.alpha = 1.0;
}
completion:^ (BOOL finished)
{
if (finished) {
// Revert image view to original.
NSLog(@"Is completed");
self.addToPlaylist.hidden = YES;
self.removeFromPlaylist.hidden = YES;
self.hasSwipeOpen = NO;
}
}];
完成后我想隐藏按钮以尝试减少滚动时的重绘等。
on completion I want to hide the buttons to attempt to lessen redraw on scroll etc.
此代码位于' - （void）swipeOff'中，在UITableViewControllers方法中调用scrollViewWillBeginDragging，如下所示：
This code sits within '-(void) swipeOff' which is called in the UITableViewControllers method scrollViewWillBeginDragging like so:
- (void)scrollViewWillBeginDragging:(UIScrollView *) scrollView
{
for (MediaCellView* cell in [self.tableView visibleCells]) {
if (cell.hasSwipeOpen) {
[cell swipeOff];
}
}
}
问题是完成代码，如果我删除它或将其设置为nil一切都很好，如果我包含它我得到一个EXC_BAD_ACCESS。即使我在if（已完成）注释掉的任何或所有行中包含它
The problem is the completion code, if I remove it or set it to nil all is good, if I include it I get an EXC_BAD_ACCESS. even if I include it with any or all of the lines within the if(finished) commented out
我是否以错误的方式使用它，任何帮助都非常感激。
Am I using this in the wrong way, any help much appreciated.
谢谢
推荐答案
我的动画遇到了同样的问题。我已经通过从其他链接器标志中删除 -weak_library /usr/lib/libSystem.B.dylib 来解决它。
I had the same problem with animations. I've solved it by removing -weak_library /usr/lib/libSystem.B.dylib from Other Linker flags.
另外，根据，如果你需要这个标志，你可以用 -weak-lSystem 替换它。
Also, according to this answer, if you need this flag, you may replace it with -weak-lSystem.
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