1.声明相册权限
在info.plist文件中添加
<key>NSPhotoLibraryUsageDescription</key>
<string>用于选取照片</string>
2.把view转成UIImage
- -(UIImage*)imageFromView:(UIView*)view{
- CGSize s = view.bounds.size;
- // 下面方法,第一个参数表示区域大小。第二个参数表示是否是非透明的。如果需要显示半透明效果,需要传NO,否则传YES。第三个参数就是屏幕密度了,关键就是第三个参数。
- UIGraphicsBeginImageContextWithOptions(s, NO, [UIScreen mainScreen].scale);
- [view.layer renderInContext:UIGraphicsGetCurrentContext()];
- UIImage*image = UIGraphicsGetImageFromCurrentImageContext();
- UIGraphicsEndImageContext();
- return image;
- }
3.把UIImage保存到系统相册
- - (void)saveImageToPhotos:(UIImage*)savedImage
- {
- UIImageWriteToSavedPhotosAlbum(savedImage, self, @selector(image:didFinishSavingWithError:contextInfo:), NULL);
- }
- - (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(voidvoid *)contextInfo{
- if (error == nil) {
- NSLog(@"存入手机相册成功");
- }else{
- NSLog(@"存入手机相册失败");
- }
- }