xfantasy
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| #define IS_RETINA ([[UIScreen mainScreen] respondsToSelector:@selector(displayLinkWithTarget:selector:)] && ([UIScreen mainScreen].scale == 2.0)) |
xfantasy
/ load image with url
Created
August 18, 2014 13:38
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| NSURL *imageUrl = [NSURL URLWithString:couponInfo.usingUrl]; | |
| NSData *imageData = [[NSData alloc] initWithContentsOfURL:imageUrl]; | |
| _avatar.image = [UIImage imageWithData:imageData]; |
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| // 检测是否存在摄像头 | |
| - (BOOL)isCameraAvailable | |
| { | |
| return [UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]; | |
| } | |
| // 检测前置摄像头是否存在 | |
| - (BOOL)isFrontCameraAvailabel | |
| { | |
| #ifdef __IPHONE_4_0 // iPhone加入了前置摄像头 |