Reimplement auto launch helper by objective-c.

LaunchHelper/LaunchHelper/AppDelegate.m

@@ -0,0 +1,43 @@
+//
+//  AppDelegate.m
+//  LaunchHelper
+//
+//  Created by 邱宇舟 on 2017/3/28.
+//  Copyright © 2017年 qiuyuzhou. All rights reserved.
+//
+
+#import "AppDelegate.h"
+
+@interface AppDelegate ()
+
+@property (weak) IBOutlet NSWindow *window;
+@end
+
+@implementation AppDelegate
+
+- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
+    // Insert code here to initialize your application
+    NSLog(@"ShadowsocksX-NG LaunchHelper");
+    
+    NSWorkspace* ws = [NSWorkspace sharedWorkspace];
+    BOOL bLaunched = NO;
+    bLaunched = [ws launchApplication: @"/Applications/ShadowsocksX-NG.app"];
+    if (!bLaunched) {
+        bLaunched = [ws launchApplication: @"ShadowsocksX-NG.app"];
+    }
+    if (!bLaunched) {
+        NSArray *pathComponents = [[[NSBundle mainBundle] bundlePath] pathComponents];
+        pathComponents = [pathComponents subarrayWithRange:NSMakeRange(0, [pathComponents count] - 4)];
+        NSString *path = [NSString pathWithComponents:pathComponents];
+        [[NSWorkspace sharedWorkspace] launchApplication:path];
+    }
+    [NSApp terminate:nil];
+}
+
+
+- (void)applicationWillTerminate:(NSNotification *)aNotification {
+    // Insert code here to tear down your application
+}
+
+
+@end