I have a multiple picker, which I store it's selection in an array. It is retained within the app usage. But when the app is exited, it removes the selection view. What i wanted is after saving it to an array, Im going to save it in NSUserDefaults so when I open the app the selection will still be there. How can I store the index as a whole using NSUserDefaults then load it again for the picker.
Here is my loading of the imagepicker view part:
- (void)loadAssets
{
count = 0;
[self.assets removeAllObjects];
AGIPCAssetsController *blockSelf = self;
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_LOW, 0), ^{
selectedPhotos = [[NSMutableArray alloc] initWithArray:blockSelf.imagePickerController.selection];
@autoreleasepool {
[blockSelf.assetsGroup enumerateAssetsUsingBlock:^(ALAsset *result, NSUInteger index, BOOL *stop) {
//ALAssetRepresentation* representation = [result defaultRepresentation];
// NSUInteger assetindex= [blockSelf.assetsGroup numberOfAssets];
if (result == nil)
{
return;
}
AGIPCGridItem *gridItem = [[AGIPCGridItem alloc] initWithAsset:result andDelegate:blockSelf];
if(count < blockSelf.imagePickerController.selection.count)
{
if ( blockSelf.imagePickerController.selection != nil &&
[result isEqual:[selectedPhotos objectAtIndex:count]])
{
gridItem.selected = YES;
count++;
}
}
[blockSelf.assets addObject:gridItem];
}];
}
dispatch_async(dispatch_get_main_queue(), ^{
[blockSelf reloadData];
});
});