Android EditText 显示/隐藏 密码字符串

		@Override
		public void onCheckedChanged(CompoundButton buttonView,
				boolean isChecked) {
			if (isChecked)
				moEditPassword.setInputType(InputType.TYPE_CLASS_TEXT);
			else
				moEditPassword.setInputType(InputType.TYPE_CLASS_TEXT
						| InputType.TYPE_TEXT_VARIATION_PASSWORD);
		}