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1.//NSData转换为UIImage NSData *imageData = [NSData dataWithContentsOfFile: imagePath]; UIImage *image = [UIImage imageWithData: imageData]; 2.//UIImage转换为NSData NSData *imageData = UIImagePNGRepresentation(image);…

iOS开发之--NSData与UIImage之间的转换

//NSData转换为UIImage NSData *imageData = [NSData dataWithContentsOfFile: imagePath]; UIImage *image = [UIImage imageWithData: imageData]; //UIImage转换为NSData NSData *imageData = UIImagePNGRepresentation(aimae); 利用这2个方法就可以进行转换,转换成NSData格式后就可以使用userdefaul…

NSData与UIImage之间的转换

1 //NSData转换为UIImage 2 NSData *imageData = [NSData dataWithContentsOfFile: imagePath]; 3 UIImage *image = [UIImage imageWithData: imageData]; 4 5 //UIImage转换为NSData 6 NSData *imageData = UIImagePNGRepresentation(aimae);…

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1,NSData 与 NSString NSData --> NSString NSString *aString = [[NSString alloc] initWithData:adata encoding:NSUTF8StringEncoding]; NSString --> NSData NSString *aString = @"1234"; NSData *aData = [aString dataUsingEncoding: NSUTF8StringEncod…

UIImage NSData 相互转化

//UIImage 转为 NSData NSData *imageData = UIImagePNGRepresentation(aImage); //NSData 转为 UIImage UIImage *newImage = [UIImage imageWithData:imageData];…

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1. NSData 与 NSStringNSData-> NSStringNSString *aString = [[NSString alloc] initWithData:adata encoding:NSUTF8StringEncoding]; NSString->NSDataNSString *aString = @"1234abcd";NSData *aData = [aString dataUsingEncoding: NSUTF8StringEncoding]…

NSdata 与 NSString，Byte数组，UIImage 的相互转换

1. NSData 与 NSString NSData-> NSString NSString *aString = [[NSString alloc] initWithData:adataencoding:NSUTF8StringEncoding]; NSString->NSData NSString *aString = @"1234abcd"; NSData *aData = [aString dataUsingEncoding: NSUTF8StringEncodi…

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,NSData 与 NSString NSData --> NSString NSString *aString = [[NSString alloc] initWithData:adata encoding:NSUTF8StringEncoding]; NSString --> NSData NSString *aString = "; NSData *aData = [aString dataUsingEncoding: NSUTF8StringEncoding]; ,NSDat…

<iOS>UIImage变为NSData并进行压缩

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//NSData转换为UIImage NSData *imageData = [NSData dataWithContentsOfFile: imagePath]; UIImage *image = [UIImage imageWithData: imageData]; //UIImage转换为NSData NSData *imageData = UIImagePNGRepresentation(aimae); . 字符串转Data NSString * str =@"str"; NS…