iphone相框应用程序

Question

我正在创建相框应用程序如何将照片和相框合并到一个PNG中并将其保存到包或文档文件夹中。

Answer 1

//UIGraphicsBeginImageContext(im1.frame.size); 
UIGraphicsBeginImageContext(im2.frame.size); 

[im1.image drawInRect:CGRectMake(0.0, 0.0, im2.frame.size.width, im2.frame.size.height)]; 
[backdrop.layer renderInContext:UIGraphicsGetCurrentContext()]; 
[im2.image drawInRect:CGRectMake(0.0, 0.0, im2.frame.size.width, im2.frame.size.height) blendMode:kCGBlendModeNormal alpha:1.0]; 
UIImage *image = UIGraphicsGetImageFromCurrentImageContext(); 
UIGraphicsEndImageContext(); 
//NSData *dataObj = UIImagePNGRepresentation(image); 
//NSString *picturedata = [dataObj base64Encoding]; 
appDelegate.fbpost=image; 

//appDelegate.image11=image; 

[UIImagePNGRepresentation(image) writeToFile:[self findUniqueSavePath] atomically:YES]; 

// Set the background 
//SETIMAGE(image); 

// Show the current contents of the documents folder 
CFShow([[NSFileManager defaultManager] directoryContentsAtPath:[NSHomeDirectory() stringByAppendingString:@"/Documents"]]);