添加判断service是否在后台运行

Signed-off-by: ycj0808 <ycj0808@126.com>
Signed-off-by: ycj0808 <ycj0808@126.com>
Merge branch 'master' of https://github.com/ycj0808/CommonUtil.git

Conflicts:
	src/com/icefire/android/utils/AppUtils.java