2016-09-24 45 views

回答

0

在MWGridViewController中,cellForRow中的代码。通过使用通知来请求图像的原始方法。现在我用block来改变它。它适合我。

//my code 
[photo requestImageForAsset:photo.asset size:CGSizeMake(cell.width * 2, cell.height * 2) resizeMode:PHImageRequestOptionsResizeModeFast completion:^(UIImage *image, NSDictionary *info) { 
    if(image){ 
     photo.loadingInProgress = NO; 
     cell.imageView.image = image; 
     [cell hideLoadingIndicator]; 
     cell.selectedButton.hidden = !_selectionMode; 
     [cell hideImageFailure]; 
    } 
}]; 
//original code 
UIImage *img = [_browser imageForPhoto:photo]; 
if (img) { 
    [cell displayImage]; 
} else { 
    [photo loadUnderlyingImageAndNotify]; 
}