一、系统用法
1.1. 现在的微信SDK，暂时不支持，多图和视频发给好友。但是系统的分享确实可以的。下面来实现一波：
#1.如果是多图，items 存的是图片，所以我们要先把图片拿到，放置在 items 中即可
#2.如果是视频，items 存的就是视频的沙盒地址，然后包装成一个 NSURL 对象
NSMutableArray *items = [NSMutableArray array];
#1.1.图片
#1.2.视频
//
//if ([filePath hasPrefix:@"file://"]) {
// filePath = [filePath stringByReplacingOccurrencesOfString:@"file://" withString:@""];
// }
// NSURL *videoUrl = [NSURL fileURLWithPath:filePath];
//}
UIActivityViewController *activityVC = [[UIActivityViewController alloc] initWithActivityItems:items applicationActivities:nil];
activityVC.completionWithItemsHandler = ^(UIActivityType _Nullable activityType, BOOL completed, NSArray * _Nullable returnedItems, NSError * _Nullable activityError) {
NSLog(@"%@",activityType);
if (completed) {
}
};
[self presentViewController:activityVC animated:YES completion:nil];
上面说的是分享的常规操作
二、自定义用法
自定义效果图 1
2.1 先做黑色提示部分
原理：自定义一个类继承于 UIActivityViewController，然后重写它相应的 view 方法，然后在里面添加相应的操作即可。如下：
1.首先自定义一个类继承于 UIActivityViewController，叫 XXActivityViewController
//XXActivityViewController.h 文件
#import <UIKit/UIKit.h>
NS_ASSUME_NONNULL_BEGIN
@interface XXActivityViewController : UIActivityViewController
@end
NS_ASSUME_NONNULL_END
//XXActivityViewController.m 文件
#import "XXActivityViewController.h"
@interface XXActivityViewController ()
@property (nonatomic, weak) UIView *tipView;
@end
@implementation XXActivityViewController
//重写 view 方法
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
//这里延迟加载一下，可能有的机型会错乱
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(.25 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
CGFloat tipViewH = 100;
//这里 10:是黑色与它的间隔； 57:是取消按钮； 15:是间隔；safeAreaBottom：是底部安全距离一个宏而已
UIView *av = [[UIView alloc] initWithFrame:CGRectMake(self.view.frame.origin.x, SCREEN_HEIGHT - self.view.frame.size.height - tipViewH - 10 - 57 - 15 + safeAreaBottom, self.view.frame.size.width, tipViewH)];
av.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:.8];
av.layer.cornerRadius = 5.0;
av.layer.masksToBounds = YES;
[[UIApplication sharedApplication].delegate.window addSubview:av];
_tipView = av;
//
UILabel *lb = [[UILabel alloc] initWithFrame:CGRectMake(12, 15, self.view.frame.size.width - 12 * 2, tipViewH - 15 * 2)];
lb.numberOfLines = 0;
lb.text = @"文案已复制，选择分享到微信好友／群或朋友圈时，长按粘贴文案。\n好友通过识别分享的海报二维码即可进入你的店铺。";
lb.font = [UIFont boldSystemFontOfSize:14];
lb.textColor = [UIColor whiteColor];
[av addSubview:lb];
});
}
#//消失的时候，记得把我们添加的控件移除。否则会留在当前窗口
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
[_tipView removeFromSuperview];
}
- (void)viewDidLoad {
[super viewDidLoad];
}
- (void)dealloc
{
NSLog(@"%s %@", __FUNCTION__, self.class);
}
@end
2.2 手动发圈按钮制作
原理：自定义一个类继承于 UIActivity，然后重写它相应的方法，然后在里面添加相应的操作即可。如下：
//XXActivity.h
#import <UIKit/UIKit.h>
NS_ASSUME_NONNULL_BEGIN
typedef void(^ActionBlock)(void);
@interface XXActivity : UIActivity
@property (nonatomic, nullable) UIActivityType xxActivityType;
@property (nonatomic, nullable) NSString *xxActivityTitle;
@property (nonatomic, nullable) UIImage *xxActivityImage;
@property (nonatomic, nullable) NSString *xxActivityUrl;
@property (nonatomic, copy) ActionBlock itemActionCallBack;
- (id)initWithTitle:(NSString *)title image:(UIImage *)image openUrl:(NSString *)openUrl;
@end
NS_ASSUME_NONNULL_END
//XXActivity.m
#import "xxActivity.h"
@implementation xxActivity
- (id)initWithTitle:(NSString *)title image:(UIImage *)image openUrl:(NSString *)openUrl
{
self = [super init];
if (self) {
self.xxActivityTitle = title;
self.xxActivityUrl = openUrl;
self.xxActivityImage = image;
}
return self;
}
+ (UIActivityCategory)activityCategory {
#//UIActivityCategoryAction 是下面那排灰色的，但是要注意图片的问题，图片有颜色的地方都是显示成灰色的，透明的才是白色显示。（就是和平时做图相反。）
return UIActivityCategoryShare;
}
- (NSString *)activityType { return @"customAppType"; }
- (NSString *)activityTitle { return self.xxActivityTitle;}
- (UIImage *)activityImage { return self.xxActivityImage; }
- (BOOL)canPerformWithActivityItems:(NSArray *)activityItems { return YES; }
- (void)prepareWithActivityItems:(NSArray *)activityItems {
}
- (UIViewController *) activityViewController { return nil; }
- (void)performActivity {
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:self.xxActivityUrl] options:@{UIApplicationOpenURLOptionsSourceApplicationKey : @(YES)} completionHandler:^(BOOL success) {
if (!success) {
if ([self.xxActivityUrl hasPrefix:@"wechat://"]) {
NSLog(@"请先安装微信客户端");
}
}else{
if (_itemActionCallBack) {
_itemActionCallBack();
}
}
}];
}
到此重写结束，下面是使用：
#//这里的 items 就是上面开始说的东西（视频或图片），并不是软件哦
- (void)showSystemShareAlertVCWithItems:(NSArray *)items
{
XXActivity *lineTimeActivity = [[XXActivity alloc] initWithTitle:@"手动发圈" image:IMG(@"jiaji_icon_penyq") openUrl:@"wechat://"];
XXActivityViewController *activityVC = [[XXActivityViewController alloc] initWithActivityItems:items applicationActivities:@[lineTimeActivity]];
//这里是排除哪些系统自带不要的
activityVC.excludedActivityTypes = @[UIActivityTypePostToFacebook,UIActivityTypePostToTwitter, UIActivityTypePostToWeibo,UIActivityTypeMessage,UIActivityTypeMail,UIActivityTypePrint,UIActivityTypeCopyToPasteboard,UIActivityTypeAssignToContact,UIActivityTypeAddToReadingList,UIActivityTypePostToFlickr,UIActivityTypePostToVimeo,UIActivityTypePostToTencentWeibo,UIActivityTypeAirDrop,UIActivityTypeOpenInIBooks];
activityVC.completionWithItemsHandler = ^(UIActivityType _Nullable activityType, BOOL completed, NSArray * _Nullable returnedItems, NSError * _Nullable activityError) {
NSLog(@"%@",activityType);
if (completed) {
}
};
[self presentViewController:activityVC animated:YES completion:nil];
}
本文到此结束。
总结：在自定义系统控件时，其实原理就是：重写它的方法，然后加入我们自己的实现。
声明：本文仅是学习笔记，如果涉及违法违规行为请联系删除，谢谢🙏
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