add common router

Example/GMRouter/GMTableViewController.m

@@ -46,7 +46,7 @@
 }
 
 - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
-   UIViewController *vc = [[GMRouter sharedInstance] pushScheme:@"gengmei://common" completeBlock:^(NSDictionary * _Nonnull params) {
+   UIViewController *vc = [[GMRouter sharedInstance] pushScheme:@"common" completeBlock:^(NSDictionary * _Nonnull params) {
         
     }];
 }

GMRouter/Classes/GMRouter+gm.h

@@ -10,6 +10,7 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
+extern NSString *const GMRouterProtocolPrefix;
 @interface GMRouter (gm)
 
 /**

GMRouter/Classes/GMRouter+gm.m

@@ -18,7 +18,7 @@
 NSString *const GMRouterActionPrefix = @"Action_";
 NSString *const GMRouterActionSuffix = @":";
 NSString *const GMRouterTargetPrefix = @"Target_";
-
+NSString *const GMRouterProtocolPrefix = @"gengmei://";
 /**
  增加一个模块, 需要在路由做映射,
  TODO: 后续改为数组的形式传过来
@@ -81,7 +81,12 @@ static NSMutableDictionary *routeMap = nil;
 }
 
 - (id)pushScheme:(NSString *)urlScheme completeBlock:(GMRouterBlock)routerBlock {
-    NSString *encodeUrlScheme = [self URLEncodeString:urlScheme];
+    NSString *encodeUrlScheme;
+    if ([encodeUrlScheme hasPrefix:GMRouterProtocolPrefix]) {
+        encodeUrlScheme = [self URLEncodeString:urlScheme];
+    } else {
+        encodeUrlScheme = [NSString stringWithFormat:@"%@%@", GMRouterProtocolPrefix ,urlScheme];
+    }
     NSURL *url = [NSURL URLWithString:encodeUrlScheme];
     if (!url) {
         // debugLog(@"协议出错了!");