fix examples

Author: luanpotter

examples/lib/stories/rendering/nine_tile_box_custom_grid_example.dart

@@ -1,10 +1,9 @@
 import 'package:flame/components.dart';
 import 'package:flame/events.dart';
 import 'package:flame/game.dart';
-import 'package:flame/input.dart';
 
 class NineTileBoxCustomGridExample extends FlameGame
-    with TapCallbacks, DoubleTapDetector {
+    with TapCallbacks, DoubleTapCallbacks {
   static const String description = '''
     If you want to create a background for something that can stretch you can
     use the `NineTileBox` which is showcased here. In this example a custom
@@ -41,7 +40,7 @@ class NineTileBoxCustomGridExample extends FlameGame
   }
 
   @override
-  void onDoubleTap() {
+  void onDoubleTapDown(_) {
     nineTileBoxComponent.scale.scale(0.8);
   }
 }

examples/lib/stories/system/pause_resume_example.dart

@@ -1,10 +1,9 @@
 import 'package:flame/components.dart';
 import 'package:flame/events.dart';
 import 'package:flame/game.dart';
-import 'package:flame/input.dart';
 
 class PauseResumeExample extends FlameGame
-    with TapCallbacks, DoubleTapDetector {
+    with TapCallbacks, DoubleTapCallbacks {
   static const description = '''
     Demonstrate how to use the pause and resume engine methods and paused
     attribute.
@@ -47,7 +46,7 @@ class PauseResumeExample extends FlameGame
   }
 
   @override
-  void onDoubleTap() {
+  void onDoubleTapDown(_) {
     paused = !paused;
   }
 }

examples/lib/stories/utils/timer_component_example.dart

@@ -4,7 +4,7 @@ import 'package:flame/game.dart';
 import 'package:flutter/material.dart';
 
 class TimerComponentExample extends FlameGame
-    with TapCallbacks, DoubleTapDetector {
+    with TapCallbacks, DoubleTapCallbacks {
   static const String description = '''
     This examples showcases the `TimerComponent`.\n\n
     Tap to start a timer that lives for one second and double tap to start
@@ -22,7 +22,7 @@ class TimerComponentExample extends FlameGame
   }
 
   @override
-  void onDoubleTap() {
+  void onDoubleTapDown(_) {
     doubleTapComponent?.removeFromParent();
     doubleTapComponent = RenderedTimeComponent(5, yOffset: 180);
     add(doubleTapComponent!);