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我有一個裁剪後的圖像&我在ui上顯示它。當我添加框架時,圖像大小發生了變化。例如,如果圖像大小是200 * 50 &當我添加另一個圖像作爲一個框架,然後新的圖像變得相等的高度&框架image.Please告訴我如何得到解決方案。添加框架時,圖像越來越拉伸?
這裏是我的代碼:
-(void)addFrames:(int)count
{
float scale ;
UIImage *borderImage;
if ([[UIScreen mainScreen] respondsToSelector:@selector(scale)] == YES && [[UIScreen mainScreen] scale] == 2.00)
{
// RETINA DISPLAY
scale = 2.0;
}
else
{
// non - retina display
scale = 1.0;
}
if(count==1)
{
borderImage = [UIImage imageNamed:@""];
}
else if(count==2)
{
borderImage = [UIImage imageNamed:@"borderImage1.png"];
}
else if(count==3)
{
borderImage = [UIImage imageNamed:@"borderImage2.png"];
}
else if(count==4)
{
borderImage =[UIImage imageNamed:@"borderImage3.png"];
}
else if(count==5)
{
borderImage = [UIImage imageNamed:@"borderImage4.png"];
}
UIImage *bottomImage = self.mainImage; //background image
UIImage *image = borderImage; //foreground image
CGSize newSize = CGSizeMake(self.img_background.frame.size.width, self.img_background.frame.size.height);
UIGraphicsBeginImageContext(newSize);
// Use existing opacity as is
[bottomImage drawInRect:CGRectMake(0,0,newSize.width,newSize.height)];
// Apply supplied opacity if applicable
[image drawInRect:CGRectMake(0,0,newSize.width,newSize.height) blendMode:kCGBlendModeNormal alpha:0.8];
UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();//
self.img_background.image=newImage;
framedImage=newImage;
}
我希望新的框架式圖像大小相等的,因爲它是添加幀之前?