[android-developers] Re: A simple question regarding inter-process communication.
Hi All, I have a same kind of problem.. I have an activity in the another process, Say it is running as a back ground. I want to tell that activity to start something.. how do i do that?? Regards, Manjunatha On Mar 23, 4:13 am, me tun wrote: > Yeah, I got my example above to work across processes with intents. I > actually managed to send the soft keyboard character sequence and > cursor position to another text edit view via a bundle in > intent.PutExtra()... So basically, I can type in one application and > have it appear in another one which I needed to do for something I'm > working on. Thanks for all your help. > > On Mar 21, 5:11 am, David Turner wrote: > > > > > On Fri, Mar 20, 2009 at 10:46 AM, Kenny wrote: > > > > I wonder if intents are sent across Linux processes too. Very anxious > > > to know the answer. > > > Of course, they are transparently send across processes when necessary, or > > sent locally if the receiver is in the same process. > > This magic is the exact purpose of the Android "Binder". > > > > Kenny > > > > On Mar 19, 1:05 pm, me tun wrote: > > > > Thanks Dianne, a colleague was telling me basically this too. Does it > > > > matter that the activities are running on different processes? > > > > > On Mar 19, 3:50 pm, Dianne Hackborn wrote: > > > > > > If you are communicating between activities, you wouldn't use > > > interfaces at > > > > > all -- all of the communication with be by sending Intents between > > > > > them > > > in > > > > > various ways, and you can use Intent.putExtra() to put strings and > > > other > > > > > data in them. > > > > > > If you are communicating via a Service, you can use Messenger as the > > > > > interface returned by onBind(), and you can stuff fairly arbitrary > > > > > data > > > in > > > > > the Message with message.setData(). > > > > > > On Wed, Mar 18, 2009 at 9:22 PM, me tun wrote: > > > > > > > Just say I have two applications, each with one activity running on > > > > > > separate processes and I want to send a simple string between them. > > > > > > For the purposes of this example, let us say I have a button that > > > > > > sends whatever is typed into an EditText view to the other > > > application > > > > > > where it is then displayed. > > > > > > > Do I have to expose a remote interface via a service that co-resides > > > > > > between the two applications? > > > > > > > Or can I do something simpler (is there a way to pass data between > > > > > > processes without defining your interface using AIDL)? > > > > > > > Thanks for clearing this up for me, as I seem to be struggling with > > > > > > performing IPC at the moment. I'm pretty sure I have to use the > > > > > > Android IPC path and generate a remote interface using AIDL. I'm > > > just > > > > > > not sure about the binding to service part. > > > > > > > Cheers! > > > > > > -- > > > > > Dianne Hackborn > > > > > Android framework engineer > > > > > hack...@android.com > > > > > > Note: please don't send private questions to me, as I don't have time > > > to > > > > > provide private support. All such questions should be posted on > > > > > public > > > > > forums, where I and others can see and answer them.- Hide quoted text > > > > > - > > - Show quoted text - --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: A simple question regarding inter-process communication.
Yeah, I got my example above to work across processes with intents. I actually managed to send the soft keyboard character sequence and cursor position to another text edit view via a bundle in intent.PutExtra()... So basically, I can type in one application and have it appear in another one which I needed to do for something I'm working on. Thanks for all your help. On Mar 21, 5:11 am, David Turner wrote: > On Fri, Mar 20, 2009 at 10:46 AM, Kenny wrote: > > > I wonder if intents are sent across Linux processes too. Very anxious > > to know the answer. > > Of course, they are transparently send across processes when necessary, or > sent locally if the receiver is in the same process. > This magic is the exact purpose of the Android "Binder". > > > > > Kenny > > > On Mar 19, 1:05 pm, me tun wrote: > > > Thanks Dianne, a colleague was telling me basically this too. Does it > > > matter that the activities are running on different processes? > > > > On Mar 19, 3:50 pm, Dianne Hackborn wrote: > > > > > If you are communicating between activities, you wouldn't use > > interfaces at > > > > all -- all of the communication with be by sending Intents between them > > in > > > > various ways, and you can use Intent.putExtra() to put strings and > > other > > > > data in them. > > > > > If you are communicating via a Service, you can use Messenger as the > > > > interface returned by onBind(), and you can stuff fairly arbitrary data > > in > > > > the Message with message.setData(). > > > > > On Wed, Mar 18, 2009 at 9:22 PM, me tun wrote: > > > > > > Just say I have two applications, each with one activity running on > > > > > separate processes and I want to send a simple string between them. > > > > > For the purposes of this example, let us say I have a button that > > > > > sends whatever is typed into an EditText view to the other > > application > > > > > where it is then displayed. > > > > > > Do I have to expose a remote interface via a service that co-resides > > > > > between the two applications? > > > > > > Or can I do something simpler (is there a way to pass data between > > > > > processes without defining your interface using AIDL)? > > > > > > Thanks for clearing this up for me, as I seem to be struggling with > > > > > performing IPC at the moment. I'm pretty sure I have to use the > > > > > Android IPC path and generate a remote interface using AIDL. I'm > > just > > > > > not sure about the binding to service part. > > > > > > Cheers! > > > > > -- > > > > Dianne Hackborn > > > > Android framework engineer > > > > hack...@android.com > > > > > Note: please don't send private questions to me, as I don't have time > > to > > > > provide private support. All such questions should be posted on public > > > > forums, where I and others can see and answer them. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: A simple question regarding inter-process communication.
On Fri, Mar 20, 2009 at 10:46 AM, Kenny wrote: > > I wonder if intents are sent across Linux processes too. Very anxious > to know the answer. > Of course, they are transparently send across processes when necessary, or sent locally if the receiver is in the same process. This magic is the exact purpose of the Android "Binder". > > Kenny > > On Mar 19, 1:05 pm, me tun wrote: > > Thanks Dianne, a colleague was telling me basically this too. Does it > > matter that the activities are running on different processes? > > > > On Mar 19, 3:50 pm, Dianne Hackborn wrote: > > > > > If you are communicating between activities, you wouldn't use > interfaces at > > > all -- all of the communication with be by sending Intents between them > in > > > various ways, and you can use Intent.putExtra() to put strings and > other > > > data in them. > > > > > If you are communicating via a Service, you can use Messenger as the > > > interface returned by onBind(), and you can stuff fairly arbitrary data > in > > > the Message with message.setData(). > > > > > On Wed, Mar 18, 2009 at 9:22 PM, me tun wrote: > > > > > > Just say I have two applications, each with one activity running on > > > > separate processes and I want to send a simple string between them. > > > > For the purposes of this example, let us say I have a button that > > > > sends whatever is typed into an EditText view to the other > application > > > > where it is then displayed. > > > > > > Do I have to expose a remote interface via a service that co-resides > > > > between the two applications? > > > > > > Or can I do something simpler (is there a way to pass data between > > > > processes without defining your interface using AIDL)? > > > > > > Thanks for clearing this up for me, as I seem to be struggling with > > > > performing IPC at the moment. I'm pretty sure I have to use the > > > > Android IPC path and generate a remote interface using AIDL. I'm > just > > > > not sure about the binding to service part. > > > > > > Cheers! > > > > > -- > > > Dianne Hackborn > > > Android framework engineer > > > hack...@android.com > > > > > Note: please don't send private questions to me, as I don't have time > to > > > provide private support. All such questions should be posted on public > > > forums, where I and others can see and answer them. > > > --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: A simple question regarding inter-process communication.
I wonder if intents are sent across Linux processes too. Very anxious to know the answer. Kenny On Mar 19, 1:05 pm, me tun wrote: > Thanks Dianne, a colleague was telling me basically this too. Does it > matter that the activities are running on different processes? > > On Mar 19, 3:50 pm, Dianne Hackborn wrote: > > > If you are communicating between activities, you wouldn't use interfaces at > > all -- all of the communication with be by sending Intents between them in > > various ways, and you can use Intent.putExtra() to put strings and other > > data in them. > > > If you are communicating via a Service, you can use Messenger as the > > interface returned by onBind(), and you can stuff fairly arbitrary data in > > the Message with message.setData(). > > > On Wed, Mar 18, 2009 at 9:22 PM, me tun wrote: > > > > Just say I have two applications, each with one activity running on > > > separate processes and I want to send a simple string between them. > > > For the purposes of this example, let us say I have a button that > > > sends whatever is typed into an EditText view to the other application > > > where it is then displayed. > > > > Do I have to expose a remote interface via a service that co-resides > > > between the two applications? > > > > Or can I do something simpler (is there a way to pass data between > > > processes without defining your interface using AIDL)? > > > > Thanks for clearing this up for me, as I seem to be struggling with > > > performing IPC at the moment. I'm pretty sure I have to use the > > > Android IPC path and generate a remote interface using AIDL. I'm just > > > not sure about the binding to service part. > > > > Cheers! > > > -- > > Dianne Hackborn > > Android framework engineer > > hack...@android.com > > > Note: please don't send private questions to me, as I don't have time to > > provide private support. All such questions should be posted on public > > forums, where I and others can see and answer them. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: A simple question regarding inter-process communication.
Thanks Dianne, a colleague was telling me basically this too. Does it matter that the activities are running on different processes? On Mar 19, 3:50 pm, Dianne Hackborn wrote: > If you are communicating between activities, you wouldn't use interfaces at > all -- all of the communication with be by sending Intents between them in > various ways, and you can use Intent.putExtra() to put strings and other > data in them. > > If you are communicating via a Service, you can use Messenger as the > interface returned by onBind(), and you can stuff fairly arbitrary data in > the Message with message.setData(). > > > > On Wed, Mar 18, 2009 at 9:22 PM, me tun wrote: > > > Just say I have two applications, each with one activity running on > > separate processes and I want to send a simple string between them. > > For the purposes of this example, let us say I have a button that > > sends whatever is typed into an EditText view to the other application > > where it is then displayed. > > > Do I have to expose a remote interface via a service that co-resides > > between the two applications? > > > Or can I do something simpler (is there a way to pass data between > > processes without defining your interface using AIDL)? > > > Thanks for clearing this up for me, as I seem to be struggling with > > performing IPC at the moment. I'm pretty sure I have to use the > > Android IPC path and generate a remote interface using AIDL. I'm just > > not sure about the binding to service part. > > > Cheers! > > -- > Dianne Hackborn > Android framework engineer > hack...@android.com > > Note: please don't send private questions to me, as I don't have time to > provide private support. All such questions should be posted on public > forums, where I and others can see and answer them. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: A simple question regarding inter-process communication.
If you are communicating between activities, you wouldn't use interfaces at all -- all of the communication with be by sending Intents between them in various ways, and you can use Intent.putExtra() to put strings and other data in them. If you are communicating via a Service, you can use Messenger as the interface returned by onBind(), and you can stuff fairly arbitrary data in the Message with message.setData(). On Wed, Mar 18, 2009 at 9:22 PM, me tun wrote: > > Just say I have two applications, each with one activity running on > separate processes and I want to send a simple string between them. > For the purposes of this example, let us say I have a button that > sends whatever is typed into an EditText view to the other application > where it is then displayed. > > Do I have to expose a remote interface via a service that co-resides > between the two applications? > > Or can I do something simpler (is there a way to pass data between > processes without defining your interface using AIDL)? > > Thanks for clearing this up for me, as I seem to be struggling with > performing IPC at the moment. I'm pretty sure I have to use the > Android IPC path and generate a remote interface using AIDL. I'm just > not sure about the binding to service part. > > Cheers! > > > > > -- Dianne Hackborn Android framework engineer hack...@android.com Note: please don't send private questions to me, as I don't have time to provide private support. All such questions should be posted on public forums, where I and others can see and answer them. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
