Question

我已经尝试了很多想法，但还没有成功，我的问题是我有一个视频，我提供了一个功能，通过视频写文本，然后将视频拖放到视频上，我现在就设置了CATextlayer具有由用户设置但未显示在正确位置的道具位置的视频，请帮助我。

这是我用于此的代码。

CATextLayer *titleLayer = [CATextLayer layer];//<========code to set the text
titleLayer.string = self.strText;
titleLayer.font = (__bridge CFTypeRef)(self.fonts);;
titleLayer.fontSize = titleLayer.fontSize;
titleLayer.position = CGPointMake (titleLayer.fontSize,titleLayer.fontSize);
//?? titleLayer.shadowOpacity = 0.5;
titleLayer.alignmentMode = kCAAlignmentCenter;
titleLayer.bounds = CGRectMake(self.rectText.origin.x,self.rectText.origin.y-52, 480, 480); //You may need to adjust this for proper display

[titleLayer setBackgroundColor:[UIColor redColor].CGColor];
[parentLayer addSublayer:titleLayer]; //ONLY IF WE ADDED TEXT

Answer 1

您的代码似乎很好，但不确定提供的框架是错误还是正确。如果您提供了正确的框架，那么最后添加此代码： -

[titleLayer display];

它现在可以使用了！

Answer 2

解决了问题，请参阅下面的代码。这与视频一起正常工作。

CATextLayer *titleLayer = [CATextLayer layer];
titleLayer.string = self.strText;
titleLayer.font = (__bridge CFTypeRef)(self.fonts);
titleLayer.fontSize = fontsize;
titleLayer.masksToBounds = NO;
titleLayer.foregroundColor = self.textColor.CGColor;
titleLayer.alignmentMode = kCAAlignmentCenter;
//[self.txtVideoText setBackgroundColor:[UIColor colorWithHue:255.0/255.0 saturation:255.0/255.0 brightness:255.0/255.0 alpha:0.4]];
//[self setAnchorPoint:self.txtVideoText.layer.anchorPoint forView:self.txtVideoText layer:titleLayer];
titleLayer.anchorPoint = CGPointMake(0.5, 0.5);
titleLayer.frame = CGRectMake(xx,-(yy-CGRectGetHeight(self.viewHeader.frame)), 480, 480); //You may need to adjust this for proper display
[parentLayer addSublayer:titleLayer]; //ONLY IF WE ADDED TEXT

Answer 3

解决了问题，请参阅下面的代码。这与视频

工作正常

CGFloat stickerX = (videoSize.width * (newsticker.frame.origin.x+imageView2.frame.origin.x))/_StickerView.frame.size.width;
CGFloat stickerY = (videoSize.height * (newsticker.frame.origin.y+imageView2.frame.origin.y))/_StickerView.frame.size.height;

titleLayer.frame = CGRectMake(stickerX,-(StickerY-CGRectGetHeight(self.viewHeader.frame)), 480, 480); //You may need to adjust this for proper display

如何根据框架在视频中设置CATextLayer？

3 个答案: