如何從imagePickerController中保存UIImage屬性

Question

如何從imagePickerController中保存圖片屬性？我能夠將圖像顯示到UIImageView中，但是當我嘗試對圖像執行其他操作時，圖像仍然爲零。你可以看到我如何保存下面的圖像。

-(void)imagePickerController:(UIImagePickerController *)picker 
didFinishPickingMediaWithInfo:(NSDictionary *)info 
{ 

[self dismissViewControllerAnimated:YES completion:nil]; 
self.image = [info objectForKey:UIImagePickerControllerOriginalImage]; //self.image is a UIImage property 
} 

Answer 1

[self dismissViewControllerAnimated:YES completion:nil]; 
self.image = [info objectForKey:UIImagePickerControllerOriginalImage]; 

你應該解僱圖像拾取您保存圖像後，因爲info的對象保留通過圖像選擇器（和信息是那裏，直到圖像選擇器沒有被駁回），正確的做法：

self.image = [info objectForKey:UIImagePickerControllerOriginalImage]; 
[self dismissViewControllerAnimated:YES completion:nil]; 

現在你可以將你想要的任何東西進行圖像處理。