I went through a tutorial for implementing the UIActivityViewController everything is working as expected. I can also use excludedItems property to remove any default options in UIActivityViewController. But now I want to make this code more dynamic. Actually my plan is that user can choose which options he can choose to omit or exclude from the UIActivityViewController . So for that I am planning to pass an array with some fixed keys and based on that keys I can define which items to included in excluded lists. Below is the sample code :
NSArray* excludedArray = [NSArray arrayWithObjects: @"Facebook", nil];
UIActivityViewController *controller = [[UIActivityViewController alloc]initWithActivityItems:items applicationActivities:nil];
if ( [excludedArray containsObject: @"Facebook"] ) {
NSArray *excluded = @[UIActivityTypeMessage];
controller.excludedActivityTypes = excluded;
}
Right now excludedArray only contains message string so based on that I added the UIActivityTypeMessage to excluded array . But tomorrow if the user adds more item to excludedArray for example print then based on that I must be able to add UIActivityTypePrint to excluded array. How to achieve that?
Link UIActivityType enum values with the selection you'll give to user using switch case.
On select/deselect update the array.
At last pass the enum array to excludedActivityTypes.
func getExcludedActivityTypes(stringArray: [String]) -> [UIActivity.ActivityType]{
var excludeArray: [UIActivity.ActivityType] = []
for str in stringArray
{
switch str
{
case "messaging":
excludeArray.append(.message)
break
case "postToTwitter":
excludeArray.append(.postToTwitter)
break
// write others to exclude those types
default:
break
}
}
return excludeArray}
Objective c - Alternative(you can use if else statement as objective c doesn't support strings for switch cases)
-(NSArray<UIActivityType>*)getExcludedActivityTypes:(NSArray<NSString*>*)stringArray {
NSMutableArray<UIActivityType> * excludeArray = @[].mutableCopy;
for(NSString * str in stringArray) {
if([str isEqualToString:@"messaging"]){
[excludeArray addObject:UIActivityTypeMessage];
}
else if([str isEqualToString:@"postToTwitter"]){
[excludeArray addObject:UIActivityTypePostToTwitter];
}
// write others to exclude those types
}
return excludeArray;}