fix(inputs): fix form onChange/onTouch

ionic/components/toggle/toggle.ts

@@ -91,9 +91,6 @@ export class Toggle {
     this.lastTouch = 0;
     this.mode = config.get('mode');
 
-    this.onChange = (_) => {};
-    this.onTouched = (_) => {};
-
     if (ngControl) {
       ngControl.valueAccessor = this;
     }
@@ -164,13 +161,6 @@ export class Toggle {
     this.onChange(this._checked);
   }
 
-  /**
-   * @private
-   */
-  writeValue(value) {
-    this.checked = value;
-  }
-
   /**
    * @private
    */
@@ -209,6 +199,27 @@ export class Toggle {
     this.isActivated = false;
   }
 
+  /**
+   * @private
+   */
+  writeValue(value) {
+    this.checked = value;
+  }
+
+  /**
+   * @private
+   */
+  onChange(val) {
+    // TODO: figure the whys and the becauses
+  }
+
+  /**
+   * @private
+   */
+  onTouched(val) {
+    // TODO: figure the whys and the becauses
+  }
+
   /**
    * @private
    */
@@ -225,7 +236,7 @@ export class Toggle {
   ngOnDestroy() {
     this.removeMoveListener();
     this.toggleEle = this.addMoveListener = this.removeMoveListener = null;
-    this.form.deregister(this);
+    this._form.deregister(this);
   }
 
   /**