Im trying to setup some tabs for my android application, but i got stuck.I cant find a way to communicate between the tabs.I got 2 tabs.The search tab is simply showing a TextEdit and a "Search" button.Hitting the search button should make my app change to the result tab and display the result.Now i cant find a way for SearchTabActivity to display ResultTabActivity and alter its view.
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I am using a TabHost one tab with a list and another to show the details of a specific item selected in the list. Does anyone know how I can communicate between tabs?
View 2 Replies View RelatedI'm currently working on my first android application. I am using a tabbed layout for my application. I followed the tutorial for this on the dev guide and ran into a problem. The tutorial only used three tabs, but I have a need for more. As such, the tabs resize and bunch up. I was hoping someone could tell me how I can make them scroll, like in dolphin browser when using multiple tabs.
View 1 Replies View RelatedI simply use the tabwidget :
CODE:..........
Why are my tabs so uggly in 2.0 (no more rounded corners as in 1.5/1.6) ?
ugly tabs here
=>
This was better
What should I do now to show "rounded corners" TABS to Nexus One (for exemple) users ;-) ?
Is it because of the following manifest lines :
CODE:................
I have to keep android:anyDensity="true" otherwise I've got a problem with re-sizing of the menus described here
As a separate question, my users can change the Locale within my app itself, I then "redraw" the menus using onPrepareOptionsMenu (Menu menu) to refresh the strings within the menu with the new language choosen by the user. Is there an equivalent for TABS (I have local strings within the Title of the TABS) or do I have to delete all the tabs and re-create them from scratch ?
We're in the process of writing an app that has 4 tabs: Map, People, Places, Events. The People, Places, and Events in the App show up as Icons on the map. By default the People, Places, and Events tabs each show a listview, custom rendered, displaying all the People, Places, and Events respectively.
Now, right now each of the tabs has as its content an Intent set to launch the corresponding activity. For instance, there is a MapTabActivity that extends MapActivity, a ShowPeopleListActivity that shows the people, and so on and so forth.
I see a lot of StackOverflow questions/answers saying that due to various limitations in the way the TabHost is setup, it's best NOT to use activities as the content of tabs. For instance, it's impossible to launch a new activity and have it take the place of the existing activity within a tab, whereas it's possible to switch out a View with a different view.
Now, I'm at a crossroads. We've (for better or worse) devoted a fair amount of time trying to get this app to work the way it's currently structured, with the Activities as the content of the tabs. When an icon corresponding to a Person, Place, or Event is clicked, it fires off a VIEW Intent on a URI corresponding to that object; this is picked up by an Activity that then shows the object. The same mechanism is at work both in the Map and in the individual lists. We really like the loose coupling this provides us; we just give a VIEW command and the URI to the person/place/event and it automatically brings us to the right activity. Granted, the activity that's launched covers up the tab view rather than appearing inside of that, but we were willing to live with this.
Here's an issue though: from the Show activity, we want to be able to go back to the map, centered at that person, place, or event. We can launch a new activity to show the map again, but now we have the map activity as the content of the tab, plus the show activity, plus the new map activity in the activity stack; given how resource intensive the map activity is, I'm guessing this is not the ideal way to go.
I guess my question is, is there a GOOD tutorial somewhere showing exactly how to do complex tasks with a TabHost? I've seen HelloTabWidget; I'm looking for something much more sophisticated than this. I'm worried that if we switch to the View based way of doing things, we'll have to do a LOT of housekeeping to intercept all the back events, try to switch out the views, etc., etc., as well as strongly coupling our program in a way we don't want.
I have an Tab Activity with 4 tabs. Each of tab is showing me the list view. Suppose i m on 4th tab and dragged the list view to the last position and after that i click on 3rd tab and again when i go to 4th tab it is not refreshing and showing me the last visible screen. Actually i want to show the list view again from 1st element. is tabs refresh automatically or we need to do it programmatic?
View 1 Replies View Relatedi have a problem with this new kitkat os. Before kitkat i could change between tabs by swiping left to right ir right to left to change tabs.Now it doesn't change.
View 1 Replies View RelatedI am trying to send AT commands via Ril from LocationManager as there is only one AT port I can use. But it seems like that there is no ways to call the function refer to Ril. Can I just new a commandsinterface and to call ril's functions via it?
View 2 Replies View RelatedI have read 'http://developer.android.com/guide/tutorials/notepad/notepad-ex2.html', specifically step 4 ahow can I return a different result to the 'calling activity', in this example, it always return ACTIVITY_CREATE. What if the 'activity being launcher' has a 'okay' and a 'cancel' button. How can the 'calling activity' knows which button user presses in the 'activity being launcher'.
View 3 Replies View Relatedmy machine is running window 7.i want to communicate bw two android emulators running on same machine.Emulator 1 is listening on some ip 10.0.2.15 when emulator two tries to create Socket socket = new Socket ("10.0.2.15",8080);it gives exception, unable to connect to 10.0.2.15.does any know how to solve this problem??
View 1 Replies View RelatedI want to control my pc with an app on my android device over usb. Is this possible.
View 1 Replies View RelatedSuppose I have an Activity that's a list. It calls a Service when this Activity starts.The Service will do background stuff download, parse, and fill the list.My question is this: How can the Service communicate with the Activity?How can I call a method in the Activity, from the Service? (I'm new to OOP)
View 2 Replies View RelatedHow does BaseAdapter communicate with its ListView? I was wondering how the BaseAdapter.notifyDataSetChanged() method notifies the attached View that the underlying data has been changed and it should refresh itself? When creating a BaseAdapter you attach it to the View with.So the ListView then knows it's adapter to get list elements. But you never tell the BaseAdapter what ListView it is attached to. So when you call BaseAdapter.notifyDataSetChanged() how does it reach the View to tell it to refresh itself?
View 3 Replies View RelatedI'm loading up a webview with some locally generated html and javascript.It makes calls to app methods just fine.But what's the right way to get data from Javascript back to the application? It's simple to have javascript call app methods, but any parameters specified in the call on the javascript side don't survive the trip (I just get null in the app).Gross hacks seem obvious (open a url and encode the data in the url), but that can't be right.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+unsubscribe@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
View 3 Replies View RelatedI am working on a app that will eventually need to communicate with an external device over the phone USB port. Are there any USB drivers and hooks in the Android OS for such applications.
View 4 Replies View RelatedIn my current project I have a full screen TabActivity. Each tab content is handled by two instances of same ListActivity. Now, I put an extra int in intent to know which data should be displayed.So in onCreate method of my ListActivity, I check the int in extra and I build my query to obtain a SQLLiteCursor.I would like to dynamycally give to this two instances of ListActivity the list of item that should be displayed.I do not know what is the best way to do this. Any idea ?
View 1 Replies View Relatedi have some problem to communicate with a service from an Android application.The service is in a first package "package com.myService" and the application in another on "package com.myApplication".My service work and start well but my next step is to add an AIDL interface to external applications.I have tried to follow the recomandation described here : http://developer.android.com/guide/developing/tools/aidl.html, but i have still the following error (given in the log service):W/ActivityManager( 568): Unable to start service Intent { action=com.MyApplication.IBootstrapService }: not found
View 2 Replies View RelatedI'm wondering which is the best way to communicate between a Service and an activity..
Broadcast intent
Callback
others?...
i have an app widget that has a couple of buttons on it, and in my onUpdate() call, I am hooking up the buttons to do something when you press them
RemoteViews remoteViews = new RemoteViews(context.getPackageName (), R.layout.appwidget); remoteViews.setOnClickPendingIntent(R.id.Button1, button1PendingIntent); remoteViews.setOnClickPendingIntent(R.id.Button2, button2PendingIntent);
The problem is that when I click on button2, it sends the button1 pending intent. i think that's because it's reusing the pending intent. http://groups.google.com/group/android-developers/browse_thread/threa. "If the creating application later re-retrieves the same kind of PendingIntent (same operation, same Intent action, data, categories, and components, and same flags), it will receive a PendingIntent representing the same token if that is still valid, and can thus call cancel() to remove it." So then the question is, how do I communicate which button was pressed?
My intention is to let two applications communicate using DBus . i know that DBus is already integrated into android,Dbus binaries DBus send,DBus-monitor,DBus-daemon are already available. i am trying to create an application which will connect to the Dbus and start sending signals and messages over DBus . for this i have used basic DBus API's to establish connection to the bus.
I have written native code to connect to the DBus.here is the code
CODE:.................................
I currently have a Service and an Activity in my application.I currently bind the Service to the activity without using AIDL as the Service and the Activity are in the same application.This allows me to call the methods from the Service within my Activity when I require them, however it doesn't let me call the methods of the Activity from within my Service when I want to.Can anyone comment on what would be the best way to achieve this?I could use Intents but is there an alternative option?I want to have tight communication between the Service and the Activity, I want to be able to call an Activity method from my Service when an event happens.
I now have it working the way I want, however I have come across a problem.My service gets status updates and my Activity is then supposed to react to the update sent on from the Service.The problem is that when I start my activity I get the Dialling Status and then Connected status before the onBind is called and I get the instance of iCallDialogActivity.
I need to be able to use my iCallDialogActivity when I get the Dialling and Connected Status notifications.But this gives me a NullPointer Exception due to it not being created in time when my Activity starts, binding is the first thing I do in my Activities onCreate().Is there a way to make it bind straight away?
An application I'm building uses a local Service for downloading files from the web to the phone's SD card. In this app users can browse lists of books, and read them while online. A user can also download a pdf copy of a book for offline viewing. To handle downloads I'm using a locally bound Service. I do not want this Service to run all the time, only when downloading files. So that the Service can shut itself down when its tasks are complete, I am not binding to the service, rather I'm sending an "enqueue for download" command through the Intent passed to Context.startService.
Books available for download are shown in a list. A user can choose to download a book by clicking on its row in the list. On download, I need to show download progress using a ProgressBar on the actual book list row. I need to also show, on the rows, if a book is enqueued for download, or if its download has completed or failed. The books can be shown in different activities throughout the application--in search, or in the user's list of favorite books, for example. When the books are shown in different places, these are not the same objects, but they are uniquely identified by their bookId...............
I have an application A and a application B that both have an activity. Now i want to send Data from activity A1 to activity B1 and back. Whats the easiest way to to dis? I tried to use Remote Service via AIDL, but this doesn't work very well in both directions because I only can pass the primitives data types and not every object i like (ok i would have to implement parceable but this is not really practicle). Then i read this post by Dianne Hackborn.
View 5 Replies View RelatedIn the Activity I write Intent i=new Intent("IntentServiceTest"); Bundle bundle = new Bundle(); bundle.putString("abc", "def"); i.putExtra("wer", bundle); IntentTest.this.startService(i); Start Service into Service OnCreate method,but I don't know how to do get this Intent in this method.
View 11 Replies View RelatedI have a service that listens to a socket. When receiving certain input it is to create an activity. When receiving other input, it is to kill this activity. I have struggled for a while to make the service communicate with the activity through AIDL (http://developer.android.com/guide/developing/tools/aidl.html), but this seems to not be effective. I think AIDL is only effective when the process that is to be talked to is a service, not when it is an activity? I would love some directions or suggestions on how to solve my problem.
View 1 Replies View RelatedI have written a command line interface program in the C language. This kind of programs (as you know) waits for user commands typed in the terminal and reacts on depend of them. In fact, the program implements a callback function which parses the command and invokes the appropriate function in order to respond to the user.Now, I have to make a Java GUI (Graphical user interface) for the desktop (Ubuntu) version of this program and then port the same program to the Android Platform (of course the GUI will respect Android framework), so I'm looking for the best way to do it.I have heard about JNI and JNA and I don't known which one will be the best for me. By the way what are the main differences between JNI and JNA.
View 1 Replies View RelatedWhat is the difference between 2 ways of interaction between applications on android:
1. implementing service in app #1 and using it in app #2.
2. handling intentions and posting answer intention.
I'm starting my first Android Application and I'm trying to figure out the best way to implement an RPC layer to communicate with my Tomcat server. Basically, I've got POJOs on the Android Client and on the Server. I simply would like to seserialize the POJOs on Android, send up an HTTP Post, deserialize on the server, do some work, then serialize a POJO response back down to the client. I've seen a number of posts referencing JSON and XML but nothing really definitive.
Further clouding the matter is the different Android SDKs out there that seem to have different levels of support for each. Obviously, if Android has a native library that works well, I'd like to use that. Additionally, I'd like something that could work with my existing POJOs without a great deal of trouble. What are the best practices for this sort of thing? Can anyone send me to any tutorials that have some solid examples on how to get this implemented and going?
I am trying to develop an app and I want it to bring in data from a mySQL database. But from some reading I have done on different sites, I am realizing that it is probably not going to happen. But I am curious to know, how do apps like PhoneFlix and others view that dynamic data on the application? Does it somehow just bring it in through http? If so, how would I go about doing that? Does anyone know of any good sites that will point me in the right direction?
View 1 Replies View RelatedIn my app I want to obtain a gps lock and record the coords. But I do not want to lock the device into looking for the gps. The user is to be free to traverse through the app and the different activities within.
So If I call a locationListener in activity A, can I reference it in activities B C and D?
if is was still in activity A I could say something like
A.this.mlocListener.removeMyUpdates();
When I am in activity B how can I reference the LocationListener I set up in Activity A