D*f
2 楼
区别大吗?能不能说说原理。
c*o
3 楼
可以
j*2
4 楼
网络稳定的话应该是push省电,如果网络不稳定,客户端经常要重新连接的话,push可
能反而更费电
能反而更费电
n*y
6 楼
大部分时候是push还是pull都不是你能选择的,所以感觉这个问题意义不太大,而且也
没有一个绝对的答案。
不过如果你是开发app,那用google的c2dm push是最省电的
没有一个绝对的答案。
不过如果你是开发app,那用google的c2dm push是最省电的
b*2
15 楼
g*t
16 楼
Push费电, 因为push需要手机向server不停的发心跳信号,来保持联系,这样才即使
查询到新email
查询到新email
s*m
18 楼
我怎么看微软ActiveSync一大宣传卖点就是省点啊?找到一个解释:
You can look at it this way. your phone already has a push notification
connection. When developers (including email apps) register for a channel,
it uses this connection. Whether you choose to use it or not. When hotmail
offers push capability, it is using the same system already in operation. A
push notification gets sent through that channel. It s a small data packet
that tells the email program to then go fetch the email. When you are
polling, your phone is constantly checking the server for any changes, in
addition to your push channel already operating.
【在 g*******t 的大作中提到】![](/moin_static193/solenoid/img/up.png)
: Push费电, 因为push需要手机向server不停的发心跳信号,来保持联系,这样才即使
: 查询到新email
You can look at it this way. your phone already has a push notification
connection. When developers (including email apps) register for a channel,
it uses this connection. Whether you choose to use it or not. When hotmail
offers push capability, it is using the same system already in operation. A
push notification gets sent through that channel. It s a small data packet
that tells the email program to then go fetch the email. When you are
polling, your phone is constantly checking the server for any changes, in
addition to your push channel already operating.
【在 g*******t 的大作中提到】
![](/moin_static193/solenoid/img/up.png)
: Push费电, 因为push需要手机向server不停的发心跳信号,来保持联系,这样才即使
: 查询到新email
a*a
21 楼
你如果把pull限制在很低的频率上应当省电。但是pull是各个app各干个的,每个都在
后台开个服务。。。
A
【在 s*****m 的大作中提到】![](/moin_static193/solenoid/img/up.png)
: 我怎么看微软ActiveSync一大宣传卖点就是省点啊?找到一个解释:
: You can look at it this way. your phone already has a push notification
: connection. When developers (including email apps) register for a channel,
: it uses this connection. Whether you choose to use it or not. When hotmail
: offers push capability, it is using the same system already in operation. A
: push notification gets sent through that channel. It s a small data packet
: that tells the email program to then go fetch the email. When you are
: polling, your phone is constantly checking the server for any changes, in
: addition to your push channel already operating.
后台开个服务。。。
A
【在 s*****m 的大作中提到】
![](/moin_static193/solenoid/img/up.png)
: 我怎么看微软ActiveSync一大宣传卖点就是省点啊?找到一个解释:
: You can look at it this way. your phone already has a push notification
: connection. When developers (including email apps) register for a channel,
: it uses this connection. Whether you choose to use it or not. When hotmail
: offers push capability, it is using the same system already in operation. A
: push notification gets sent through that channel. It s a small data packet
: that tells the email program to then go fetch the email. When you are
: polling, your phone is constantly checking the server for any changes, in
: addition to your push channel already operating.
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