是否有corespotlight搜索功能的示例代码- iOS 9API？

Question

是否有corespotlight搜索功能的示例代码- iOS 9API？如果能看一下实现/测试的示例代码，我会很感激。

Answer 1

1. 创建一个新的iOS项目，并将CoreSpotlight和MobileCoreServices框架添加到项目中。

​

1. 创建实际的CSSearchableItem，并将uniqueIdentifier、domainIdentifier和attributeSet关联起来。最后，使用[CSSearchableIndex defaultSearchableIndex...]为CSSearchableItem建立索引如下所示。

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1. OK！测试索引！

​

Answer 2

CSSearchableItemAttributeSet *attributeSet;
attributeSet = [[CSSearchableItemAttributeSet alloc]
                                 initWithItemContentType:(NSString *)kUTTypeImage];

attributeSet.title = @"My First Spotlight Search";
attributeSet.contentDescription = @"This is my first spotlight Search";

attributeSet.keywords = @[@"Hello", @"Welcome",@"Spotlight"];

UIImage *image = [UIImage imageNamed:@"searchIcon.png"];
NSData *imageData = [NSData dataWithData:UIImagePNGRepresentation(image)];
attributeSet.thumbnailData = imageData;

CSSearchableItem *item = [[CSSearchableItem alloc]
                                       initWithUniqueIdentifier:@"com.deeplink"
                                               domainIdentifier:@"spotlight.sample"
                                                   attributeSet:attributeSet];

[[CSSearchableIndex defaultSearchableIndex] indexSearchableItems:@[item]
                                 completionHandler: ^(NSError * __nullable error) {
    if (!error)
        NSLog(@"Search item indexed");
}];

注意：kUTTypeImage要求您导入MobileCoreServices框架。

Answer 3

为了完成spotlight搜索功能，一旦你实现了 answer，你将能够在搜索中看到结果，但在选择结果时，你的应用程序将简单地打开相关视图，而不是相关内容。

为此，请转到AppDelegate.m并添加以下方法。

 -(BOOL)application:(UIApplication *)application continueUserActivity:(NSUserActivity *)userActivity restorationHandler:(void (^)(NSArray * _Nullable))restorationHandler

        {

            //check if your activity has type search action(i.e. coming from spotlight search)
            if ([userActivity.activityType isEqualToString:CSSearchableItemActionType ] == YES) {

                //the identifier you'll use to open specific views and the content in those views.
                NSString * identifierPath = [NSString stringWithFormat:@"%@",[userActivity.userInfo objectForKey:CSSearchableItemActivityIdentifier]];

                if (identifierPath != nil) {

                    // go to YOUR VIEWCONTROLLER
                    // use notifications or whatever you want to do so

                    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle: nil];
                    MyViewController *myViewController = [storyboard instantiateViewControllerWithIdentifier:@"MyViewController"];

                    // this notification must be registered in MyViewController
                    [[NSNotificationCenter defaultCenter] postNotificationName:@"OpenMyViewController" object: myViewController userInfo:nil];


                    return YES;
                }

            }


            return NO;
        }

确保在AppDelegate.m中导入：

 #import <MobileCoreServices/MobileCoreServices.h>
 #import <CoreSpotlight/CoreSpotlight.h>

Swift 2.1的更新

func application(application: UIApplication, continueUserActivity userActivity: NSUserActivity, restorationHandler: ([AnyObject]?) -> Void) -> Bool {

    if #available(iOS 9.0, *) {
        if userActivity.activityType == CSSearchableItemActionType  {

            //the identifier you'll use to open specific views and the content in those views.
            let dict = userActivity.userInfo! as NSDictionary
            let identifierPath  = dict.objectForKey(CSSearchableItemActivityIdentifier) as! String
            if identifierPath.characters.count > 0 {

                let storyboard : UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
                let mvc: MyViewController = storyboard.instantiateViewControllerWithIdentifier("MyViewController") as! MyViewController

                NSNotificationCenter.defaultCenter().postNotificationName("OpenMyViewController", object: mvc, userInfo: nil)
            }

            return true
        }

    } else {
        // Fallback on earlier versions
            return false

    }

    return false

}

确保在AppDelegate.swift中导入：

import CoreSpotlight
import MobileCoreServices