.

Author: tinayuangao

src/lib/checkbox/checkbox.ts

@@ -13,7 +13,7 @@ import {
 } from '@angular/core';
 import {CommonModule} from '@angular/common';
 import {NG_VALUE_ACCESSOR, ControlValueAccessor} from '@angular/forms';
-import {MdRippleModule, coerceBooleanProperty} from '../core';
+import {BooleanFieldValue, MdRippleModule} from '../core';
 
 /**
  * Monotonically increasing integer used to auto-generate unique ids for checkbox components.
@@ -90,24 +90,15 @@ export class MdCheckbox implements ControlValueAccessor {
   @Input() id: string = `md-checkbox-${++nextId}`;
 
   /** Whether the ripple effect on click should be disabled. */
-  private _disableRipple: boolean = false;
-
-  @Input()
-  get disableRipple() { return this._disableRipple; }
-  set disableRipple(v) { this._disableRipple = coerceBooleanProperty(v); }
+  @Input() @BooleanFieldValue() disableRipple: boolean = false;
 
   /** ID to be applied to the `input` element */
   get inputId(): string {
     return `input-${this.id}`;
   }
 
   /** Whether the checkbox is required or not. */
-  private _required: boolean;
-
-  /** Whether the checkbox is required or not. */
-  @Input()
-  get required(): boolean { return this._required; }
-  set required(value) { this._required = coerceBooleanProperty(value); }
+  @Input() @BooleanFieldValue() required: boolean = false;
 
   /** Whether or not the checkbox should come before or after the label. */
   @Input() align: 'start' | 'end' = 'start';