Question

当我在iphone上运行这个程序后添加四个图像内存警告来应用程序崩溃。所以请帮助我谢谢我只是获取图像参考并写入文件，然后从文件路径获取图像。感谢

- (IBAction)addPicsButtonClick:(id)sender 
{
    UIImagePickerController * picker = [[[UIImagePickerController alloc] init] autorelease];
    picker.delegate = self;
    picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;    
    [self presentModalViewController:picker animated:YES];    
}


- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
    [picker dismissModalViewControllerAnimated:YES];
}

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info 
{        
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *pathToDocuments=[paths objectAtIndex:0];
    AppDelegate *app = [[UIApplication sharedApplication] delegate];
    NSData *imageData = UIImageJPEGRepresentation([info objectForKey:@"UIImagePickerControllerOriginalImage"], 0.3f);    
    [imageData writeToFile:[NSString stringWithFormat:@"%@/%d.jpg", pathToDocuments, [app.images count]] atomically:YES];    
    [self dismissModalViewControllerAnimated:YES];

}

Answer 1

我在模拟器中的新应用程序中运行相同的代码，并且没有崩溃问题或内存警告，并且它创建了文件。我确实取出[app.images count]并使用了局部变量，因为app.images没有在此代码中的任何位置设置。因此，如果该变量是垃圾或过度释放，那可能是您的问题。

从photolibrary获取图像时，iphone中的UIImagePickerViewController内存警告

1 个答案: