在iOS17上,YYText会报以下错误:
UIGraphicsBeginImageContext() failed to allocate CGBitampContext: size={0, 0}, scale=3.000000, bitmapInfo=0x2002. Use UIGraphicsImageRenderer to avoid this assert.
办理方法如下:
在YYTextAsyncLayer.m文件中,_displayAsyncBOOL)async 方法中。
原代码:
- UIGraphicsBeginImageContextWithOptions(self.bounds.size, self.opaque, self.contentsScale);
- CGContextRef context = UIGraphicsGetCurrentContext();
- if (self.opaque) {
- CGSize size = self.bounds.size;
- size.width *= self.contentsScale;
- size.height *= self.contentsScale;
- CGContextSaveGState(context); {
- if (!self.backgroundColor || CGColorGetAlpha(self.backgroundColor) < 1) {
- CGContextSetFillColorWithColor(context, [UIColor whiteColor].CGColor);
- CGContextAddRect(context, CGRectMake(0, 0, size.width, size.height));
- CGContextFillPath(context);
- }
- if (self.backgroundColor) {
- CGContextSetFillColorWithColor(context, self.backgroundColor);
- CGContextAddRect(context, CGRectMake(0, 0, size.width, size.height));
- CGContextFillPath(context);
- }
- } CGContextRestoreGState(context);
- }
- task.display(context, self.bounds.size, ^{return NO;});
- UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
- UIGraphicsEndImageContext();
- self.contents = (__bridge id)(image.CGImage);
复制代码 修复后的代码:
- UIGraphicsImageRendererFormat *format = [[UIGraphicsImageRendererFormat alloc] init];
- format.opaque = self.opaque;
- format.scale = self.contentsScale;
- UIGraphicsImageRenderer *renderer = [[UIGraphicsImageRenderer alloc] initWithSize:self.bounds.size format:format];
- UIImage *image = [renderer imageWithActions:^(UIGraphicsImageRendererContext * _Nonnull rendererContext) {
- CGContextRef context = rendererContext.CGContext;
- if (self.opaque) {
- CGSize size = self.bounds.size;
- size.width *= self.contentsScale;
- size.height *= self.contentsScale;
- CGContextSaveGState(context); {
- if (!self.backgroundColor || CGColorGetAlpha(self.backgroundColor) < 1) {
- CGContextSetFillColorWithColor(context, [UIColor whiteColor].CGColor);
- CGContextAddRect(context, CGRectMake(0, 0, size.width, size.height));
- CGContextFillPath(context);
- }
- if (self.backgroundColor) {
- CGContextSetFillColorWithColor(context, self.backgroundColor);
- CGContextAddRect(context, CGRectMake(0, 0, size.width, size.height));
- CGContextFillPath(context);
- }
- } CGContextRestoreGState(context);
- }
- task.display(context, self.bounds.size, ^{return NO;});
- }];
- self.contents = (__bridge id)(image.CGImage);
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