added files via upload

Tweaks/FLEX/ObjectExplorers/Sections/Shortcuts/FLEXUIAppShortcuts.m

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+//
+//  FLEXUIAppShortcuts.m
+//  FLEX
+//
+//  Created by Tanner on 5/25/20.
+//  Copyright © 2020 FLEX Team. All rights reserved.
+//
+
+#import "FLEXUIAppShortcuts.h"
+#import "FLEXRuntimeUtility.h"
+#import "FLEXShortcut.h"
+#import "FLEXAlert.h"
+
+@implementation FLEXUIAppShortcuts
+
+#pragma mark - Overrides
+
++ (instancetype)forObject:(UIApplication *)application {
+    return [self forObject:application additionalRows:@[
+        [FLEXActionShortcut title:@"Open URL…"
+            subtitle:^NSString *(UIViewController *controller) {
+                return nil;
+            }
+            selectionHandler:^void(UIViewController *host, UIApplication *app) {
+                [FLEXAlert makeAlert:^(FLEXAlert *make) {
+                    make.title(@"Open URL");
+                    make.message(
+                        @"This will call openURL: or openURL:options:completion: "
+                         "with the string below. 'Open if Universal' will only open "
+                         "the URL if it is a registered Universal Link."
+                    );
+                    
+                    make.textField(@"twitter://user?id=12345");
+                    make.button(@"Open").handler(^(NSArray<NSString *> *strings) {
+                        [self openURL:strings[0] inApp:app onlyIfUniveral:NO host:host];
+                    });
+                    make.button(@"Open if Universal").handler(^(NSArray<NSString *> *strings) {
+                        [self openURL:strings[0] inApp:app onlyIfUniveral:YES host:host];
+                    });
+                    make.button(@"Cancel").cancelStyle();
+                } showFrom:host];
+            }
+            accessoryType:^UITableViewCellAccessoryType(UIViewController *controller) {
+                return UITableViewCellAccessoryDisclosureIndicator;
+            }
+        ]
+    ]];
+}
+
++ (void)openURL:(NSString *)urlString
+          inApp:(UIApplication *)app
+ onlyIfUniveral:(BOOL)universalOnly
+           host:(UIViewController *)host {
+    NSURL *url = [NSURL URLWithString:urlString];
+    
+    if (url) {
+        if (@available(iOS 10, *)) {
+            [app openURL:url options:@{
+                UIApplicationOpenURLOptionUniversalLinksOnly: @(universalOnly)
+            } completionHandler:^(BOOL success) {
+                if (!success) {
+                    [FLEXAlert showAlert:@"No Universal Link Handler"
+                        message:@"No installed application is registered to handle this link."
+                        from:host
+                    ];
+                }
+            }];
+        } else {
+            [app openURL:url];
+        }
+    } else {
+        [FLEXAlert showAlert:@"Error" message:@"Invalid URL" from:host];
+    }
+}
+
+@end
+