iOS搜索相关
项目用到search api 和 Spotlight
以下是:
search api ： NSUserActivity
在不依赖CoreSpotlight时用NSUserActivity实现搜索，必须要保证activity是强引用的，直到它被添加到索引。否则,您设置的 activity会在dealloc 的时候消失。
一：通过属性创建控制器的activity，保证activity是强引用的
二：是使用userActivity 的UIResponder属性，并重写updateUserActivityState方法
1.定义属性
@property (nonatomic, strong) NSUserActivity *userActivity;
2.添加搜索关键字
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 9.0)
{
//创建一个对象，这里的type用于区分搜索的类型
self.userActivity = [[NSUserActivity alloc] initWithActivityType:@"SearchTest"];
//显示的标题
self.userActivity.title = @"鹿顶记-为会员提供更多、更高品质服务";
// 搜索的关键字
self.userActivity.keywords = [NSSet setWithArray: @[@"全球",@"新发现"]];
// 支持Search
self.userActivity.eligibleForSearch = YES;
//提交设置
[self.userActivity becomeCurrent];
}
3.调起app
- (BOOL)application:(nonnull UIApplication *)application continueUserActivity:(nonnull NSUserActivity *)userActivity restorationHandler:(nonnull void (^)(NSArray * __nullable))restorationHandler{
NSString *activityType = userActivity.activityType;
if ([activityType isEqual:LU9_UserActivitySearch])
{
return YES;
}
return NO;
}
Spotlight
</br>
想在App中使用Spotlight,首先得引入Core Spotlight Framework，Targets ->General -> linked Frameworks and Libraries 点击加号添加CoreSpotlight.framework
导入头文件
#import <CoreSpotlight/CoreSpotlight.h>
#import <MobileCoreServices/MobileCoreServices.h>
1.关联搜索
- (void)supportSpotlightSearch {
dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
dispatch_async(queue, ^{
@try {
//创建SearchableItems的数组
NSMutableArray *searchableItems = [[NSMutableArray alloc] initWithCapacity:你的搜索数组];
for (模型 *akind in array) {
//1.创建条目的属性集合
CSSearchableItemAttributeSet * attributeSet = [[CSSearchableItemAttributeSet alloc] initWithItemContentType:(NSString*) kUTTypeImage];
//2.给属性集合添加属性
attributeSet.title = akind.fTitle;
attributeSet.contentDescription = [NSString stringWithFormat:@"%@", akind.content];
// attributeSet.thumbnailData = UIImagePNGRepresentation([UIImage imageNamed:[NSString stringWithFormat:@"%d.png", i+1]]);
//
//3.属性集合与条目进行关联
CSSearchableItem *searchableItem = [[CSSearchableItem alloc] initWithUniqueIdentifier:[NSString stringWithFormat:@"%@", akind.fid] domainIdentifier:@"SpotLight_Category" attributeSet:attributeSet];
//把该条目进行暂存
[searchableItems addObject:searchableItem];
}
//4.吧条目数组与索引进行关联
[[CSSearchableIndex defaultSearchableIndex] indexSearchableItems:searchableItems completionHandler:^(NSError * _Nullable error) {
if (!error) {
NSLog(@"%s, %@", __FUNCTION__, [error localizedDescription]);
}
}];
}
@catch (NSException *exception) {
NSLog(@"%s, %@", __FUNCTION__, exception);
}
@finally {
}
});
}
2.调起app
- (BOOL)application:(nonnull UIApplication *)application continueUserActivity:(nonnull NSUserActivity *)userActivity restorationHandler:(nonnull void (^)(NSArray * __nullable))restorationHandler{
NSString *uniqueIdentifier = [userActivity.userInfo objectForKey:@"kCSSearchableItemActivityIdentifier"];
// 这下面的内容是找到导航 跳转到该页面~~~，根据自己的情况改变
//层层关闭，统一跳转到首页
[kAppDelegate.centerViewDeckController closeOpenView];
for (UINavigationController *na in kAppDelegate.tabBarController.viewControllers)
{
[na popToRootViewControllerAnimated:NO];
}
[kAppDelegate.tabBarController setSelectedWithIndex:0];
Kind *kind = [[Kind alloc] init];
kind.fid = uniqueIdentifier;
kind.fTitle = userActivity.title;
CategoryViewController *categoryVC = [[CategoryViewController alloc] init];
categoryVC.kind = kind;
[kAppDelegate.homeNavigationController pushViewController:categoryVC animated:YES];
return YES;
}
