iOS之share Extension
先上效果图。从系统自带的浏览器Safari打开一个网址，分享到自己的app
具体实现步骤：
1.File->New->Target， Application Extension->Share Extension
新建文件
2.Product Name 是在分享菜单中显示的名字。
新建文件
3.
文件建好效果
但目前这个分享扩展什么都不能做，需要完善功能。
4.先来分析ShareViewController这个类
- (void)viewDidLoad
- (BOOL)isContentValid
- (void)didSelectPost
- (NSArray *)configurationItems
viewDidLoad这个方法我们就不用说了， isContentValid来判断我们获取到得数据是否是我们想要的。didSelectPost是选择之后的方法， configurationItems 只返回一个SLComposeSheetConfigurationItem 这是一个类似tableview的列表下面会看到效果.以上三步就能实现一个简单的share Extension 编译运行之后，我们会看到一个很简单的分享页面，当然现在我们还没有做任何东西，那么怎么把我们要分享的东西，或者其他操作和我们的应用关联呢或者上传到我们的服务器呢？
直接上代码：
shareViewController代码如下
@interface ShareViewController ()
@property (strong, nonatomic) UIWebView *webView;
@end
@implementation ShareViewController
- (BOOL)isContentValid {
return YES;
}
- (void)didSelectPost {
[self initWebView];
[self parsePostUrl];
}
- (void)parsePostUrl {
NSExtensionItem *extensionItem = self.extensionContext.inputItems.firstObject;
NSItemProvider *itemProvider = extensionItem.attachments[0];
NSUserDefaults *myDefaults = [[NSUserDefaults alloc]
initWithSuiteName:@"group.com.yabadun.live"];
[myDefaults setObject:self.contentText forKey:@"text"];
[myDefaults synchronize];
if ([itemProvider hasItemConformingToTypeIdentifier:(NSString*)kUTTypeURL]) {
[itemProvider loadItemForTypeIdentifier:(NSString*)kUTTypeURL options:nil completionHandler:^(NSURL *url, NSError *error) {
[self.extensionContext completeRequestReturningItems:@[] completionHandler:^(BOOL expired) {
[self openAppWithURL:url.absoluteString text:self.contentText];
}];
}];
}
}
- (NSArray *)configurationItems {
return @[];
}
- (void)initWebView {
self.webView = [[UIWebView alloc] init];
[self.view addSubview:self.webView];
}
- (void)openAppWithURL:(NSString*)urlString text:(NSString*)text {
UIResponder* responder = self;
while ((responder = [responder nextResponder]) != nil) {
if ([responder respondsToSelector:@selector(openURL:)] == YES) {
[responder performSelector:@selector(openURL:) withObject:[NSURL URLWithString:[NSString stringWithFormat:@"wolaiSocial://%@", [self urlStringForShareExtension:urlString text:text]]]];
}
}
}
- (NSString*)urlStringForShareExtension:(NSString*)urlString text:(NSString*)text {
NSString* finalUrl=[NSString stringWithFormat:@"%@____%@", text, urlString];
finalUrl = (NSString *)CFBridgingRelease(CFURLCreateStringByAddingPercentEscapes(
NULL,
(CFStringRef)finalUrl,
NULL,
(CFStringRef)@"!*'();:@&=+$,/?%#[]",
kCFStringEncodingUTF8 ));
return finalUrl;
}
@end
然后在appdelegate 实现如下
#pragma mark Handle app open from share extention
- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation {
if ([url.description hasPrefix:@"wolaiSocial"]) {
[POIShareHelper shareFromURL:url];
}
}
//iOS 9 及以上
- (BOOL)application:(UIApplication *)app
openURL:(NSURL *)url
options:(NSDictionary *)options {
if ([url.description hasPrefix:@"wolaiSocial"]) {
[POIShareHelper shareFromURL:url];
}
}
POIShareHelper主要实现如下：通过url，获取该网页的标题和图片分享到app内部的社区模块
#import "POIHtmlParser.h" //解析html内容
#import "POIShareHelper.h"
#import "POIUploaderHelper.h" //图片处理
#import "POIPublishRequest.h" //发布到社区模块
#import "POIExploreViewController.h"
@implementation POIShareHelper
+ (void)shareFromURL:(NSURL *)url{
[self shareFromWolaiSocial:url];
}
+ (void)shareFromWolaiSocial:(NSURL *)url{
NSString *attrStr = [NSString poi_urlStringFromShareExtension:url.absoluteString];
NSArray* attrArr = [attrStr componentsSeparatedByString:@"____"];
if([attrArr count] > 1){
NSString* text = attrArr[0];
NSString* linkUrl = attrArr[1];
POIHtmlParser *parser = [[POIHtmlParser alloc] initWithUrl:attrArr[1]];
if(parser.imageUrl && ![parser.imageUrl isEqualToString:@""])
{
NSURL *url = [NSURL URLWithString:parser.imageUrl];
UIImage *image = [UIImage imageWithData:[NSData dataWithContentsOfURL:url]];
[POIUploaderHelper uploadImage:image completion:^(id responseObject) {
NSString* linkImage = @"";
if ([responseObject isKindOfClass:[NSString class]])
{
linkImage = (NSString*)responseObject;
}
[self handleShareLinkImageUploadFinished:@{
@"linkURL":linkUrl,
@"text":text,
@"linkTitle":parser.title,
@"linkImage":linkImage
}];
} progress:^(float percent) {
} failed:^{
[self handleShareLinkImageUploadFinished:@{
@"linkURL":linkUrl,
@"text":text,
@"linkTitle":parser.title,
@"linkImage":@""
}];
}];
}else{
[self handleShareLinkImageUploadFinished:@{
@"linkURL":linkUrl,
@"text":text,
@"linkTitle":parser.title,
@"linkImage":@""
}];
}
}
}
+ (void)handleShareLinkImageUploadFinished:(id)object {
NSString* linkURL = [object objectForKey:@"linkURL"];
NSString* linkImage = [object objectForKey:@"linkImage"];
NSString* linkTitle = [object objectForKey:@"linkTitle"];
NSString* text = [object objectForKey:@"text"];
[POIPublishRequest requestPublishWithUrl:linkURL text:text linkImage:linkImage linkTitle:linkTitle complete:^(NSInteger stastus) {
[SVProgressHUD showSuccessWithStatus:@"分享成功！"];
} failure:^{
[MBProgressHUD showMessage:@"分享失败" afterDelay:2.0f];
}]; 此处分享至社区模块代码
}
@end
至于html解析与图片处理的类就不放了，方法有很多。仅供参考哈~ 有不对或有什么问题的地方欢迎纠正
