Android :: How Can Call One Activity To Other Activity Without Using Intents And Services

Mar 12, 2010

How can i call one activity to other activity without using intents and services?

Android :: How can call one activity to other activity without using intents and services

Android :: How To Call Activity Wait For Sub-activity To Return & Proceed?

Apr 15, 2010

Experts: My MainActivity launches a SubActivity by calling: startActivityForResult(intent, REQ_CODE); The SubActivity shows a dialog that has two buttons: Yes, No For the dialog, I've the following code: public void onClick(DialogInterface dialog, int whichButton) {/* User clicked OK */setResult(DialogInterface. BUTTON_POSITIVE) ;finish();

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Android :: Activity / Intents InTabs

Sep 19, 2010

Developers. I am a newbie to Android but a seasoned developer in UI, Java , and ECLIPSE. I am trying to do something I believe is very simple yet I am struggling. I have two tabs, A & B. I want to put an Activity in each tab. I want to have the 'B' Activity live inside 'A' so I can access it within 'A'. 'A' has a clock and every second that passes I need to update information in 'B', even if 'A' is not currently shown. I put 'B' into the 2nd tab as follows:TabSpec mapInfo=tabs.newTabSpec("tag3"); Intent intent = new Intent(this, MathleteMapActivity.class)mapInfo.setContent(intent); mapInfo.setIndicator("Course Map");tabs.addTab(mapInfo); I am totally confused on how to get the "MathleteMapActivity" Activity from the Intent 'intent'. There appears no way to do this. Can anyone please recommend a cleaner way to do this knowing what I am trying to do?

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Android :: Launching Activity Through Intents

Aug 9, 2010

I am implementing a simple app. I need to start an activity based on the state of the Activity. Lets take i am using a button to start the activity.
1. If the activity is not started, I need to start XYZ activity.
2. If the XYZ activity is on focus, then i need to close the activity on the button press.
3. If the XYZ activity is not in focus (like onPause) state then, I need to change the button state.Can you please help me in the flags that i need to use for starting the intent. Is it possible to get the state of activity before I start that activity?

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Android :: Methods Of Intents Activity?

Jan 8, 2010

I have two applications A and B (in different packages,but it doesn't matter).Application B is an sms application that i have made and contains one activity.This activity has a method called sendSMS(String number,String text).I want to call this method from application A and send an SMS without opening the activity(the GUI) of application B but just send an SMS in the background by calling just the method of the activity.Any ideas?

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Android :: Intents To Activity From Notification Status Bar?

Sep 22, 2010

I am trying to start an activity from the notification bar but it needs to get an int. From activity to activity I would just put an int into the intent but I can't seem to figure out where to add the extra for the notification bar? Is this possible? If not is there a better way to do it?public void notifyMe()Code...

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Android :: Send Message From Activity Using Intents Filter?

Jul 2, 2010

How to send any message from one activity to another using intent and intent filters?

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Android :: Use Of Intents Used For Sending Data To Activity From Service

Feb 16, 2010

I am little confused with the use of intents used for sending data to activity from service. In my application I have to have startactivity from the service and have to pass data ,so that activity can utilize the data while launching.For this i have written the following code Intent intent = new Intent(Service.this,Activity.class); intent.putExtra("data", data); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); context.start Activity(); I assume that the data is passed to the activity and can be parsed on the oncreate function of the activity.Now the service running in the background has to pass data to the activity continously for UI updates.For this I have written the following codeIntent intent = new Intent(Service.this, Activity.class); intent.putExtra("Data", data); intent.setAction(Intent.ACTION_ATTACH_DATA); sendBroadcast(intent,null); (Do I need to broadcast the intent???) In activity I have done following things:- Implemented broadcast reciever:private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { if (Intent.ACTION_ATTACH_DATA.equals(intent.getAction())) { Bundle extra = intent.getExtras(); float Data[] = extra.getFloatArray("Data"); update(Data);

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Android :: Passing Intents From Service To New Launch From Main Activity

Mar 30, 2009

How do you pass an intent from a service to a new activity launched from a main activity? There's a passextra( intent src ); but I don't think thats what I am looking for?

activity main > start service( intent wuteverserviceintent );
activity main > start activity( intent newactivityintent );

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Android :: Unable To Get Data From Activity To Service / How Intents Could Pass That?

Nov 24, 2010

I am pretty new to this but I was told I could get good help here. A friend and myself are playing around with creating Android apps (using ADT)

Here is how we are trying to make the program: in activity, user sets threshold values for the X and Y axis on accelerometer. When user hits button "Start", startService is invoked and starts TiltService.

TiltService is designed to run in the background always on the phone without user interaction. TiltService constantly compares the threshold with the accelerometer values and will vibrate if they are off.

My problem is I can't seem to get the putExtra() data correctly. I have overridden the onStartCommand in my service but I get the message "unreachable code" when I save the getExtras() to a bundle.

Here is the relevant code (I can post the whole thing, just do not want to clog up page) code...

I thought I understood the basic of how Intents could pass data, but I guess I don't. Is it obvious what I am missing?

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Android :: Android Activity Call Another Activity Method

Jun 7, 2010

A TabActivity start other activity when i click on a tab,

How to send information to parent (tabActivity) and don't finish current activity?

My tabactivity start another activity like this :


Inside my new Activity Option, i would like to Call method of Tabactivity, is it possible ?

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Android :: Stopping Background Services During An Android Activity

Mar 17, 2010

I am developing an android game right now, and it requires very precise timing and synchronization. That said, it is essential that there is no lag during the game. However I sometimes get lag spikes in the game, and I know its not the GC because I have run the ddms tool, and eliminated all the GC calls. However, I do see alot of background services popping up in my ddms logcat. Is there anyway to pause all services when my game is running?

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Android :: How To Call An Activity Of Other App From Another?

Jun 25, 2009

How can I call an activity of app A from app B.

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Android :: Way To Call An Activity?

Jun 23, 2009

I am developing a android application with more than four activities. i am starting a activity using startActrivity() method wherever i need to go for other activity. i feel this degrade my application performance.

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Android :: Way To Call Map Activity From Another?

Jul 26, 2010

When I try the above, I get a class not found exception. I have included the required entry in manifest file. The code in current activity is as follows: Intent i = new Intent(MainListingA.this, DrawTheatreMap.class); try{startActivity(i); The error I get is as follows: 07-26 23:03:20.259: WARN/dalvikvm(307): threadid=1: thread exiting with uncaught exception (group=0x4001d800) 07-26 23:03:20.397: ERROR/AndroidRuntime(307): FATAL EXCEPTION: main 07-26 23:03:20.397: ERROR/AndroidRuntime(307): java.lang.NoClassDefFoundError: 07-26 23:03:20.397: ERROR/AndroidRuntime(307): at$1.onItemClick( 07-26 23:03:20.397: ERROR/AndroidRuntime(307): at android.widget.AdapterView.performItemClick( 07-26 23:03:20.397: ERROR/AndroidRuntime(307): at android.widget.ListView.performItemClick( 07-26 23:03:20.397: ERROR/AndroidRuntime(307): at android.widget.AbsListView$ 07-26 23:03:20.397: ERROR/AndroidRuntime(307): at android.os.Handler.handleCallback( 07-26 23:03:20.397: ERROR/AndroidRuntime(307): at android.os.Handler.dispatchMessage( 07-26 23:03:20.397: ERROR/AndroidRuntime(307): at android.os.Looper.loop( 07-26 23:03:20.397: ERROR/AndroidRuntime(307): at 07-26 23:03:20.397: ERROR/AndroidRuntime(307): at java.lang.reflect.Method.invokeNative(Native Method) 07-26 23:03:20.397: ERROR/AndroidRuntime(307): at java.lang.reflect.Method.invoke( 07-26 23:03:20.397: ERROR/AndroidRuntime(307): at $ 07-26 23:03:20.397: ERROR/AndroidRuntime(307): at 07-26 23:03:20.397: ERROR/AndroidRuntime(307): at dalvik.system.NativeStart.main(Native Method) On a standalone basis, the same map activity works fine.

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Android :: How To Call Map Activity From Another?

Jul 26, 2010

I get a class not found exception. I have included the required entry in manifest file.The code...

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Android :: Back To Activity When Call Is Done

Nov 24, 2010

I am launching an activity to make a phone call, but when I pressed the 'End Call' button, it does not go back to my activity. Can you please tell me how can I launch a call activity which comes back to me when 'End Call' button is pressed?

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Android :: How To Call A Method From Outside An Activity?

Apr 21, 2009

I have a java class and an Activity .GameWindow in GameWindow.Java. In the GameWindow activity i have a method...

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Android :: Way To Call Other Activities In An Activity?

May 8, 2010

Say I have 2 activities (ActivityOne and ActivityTwo). How would I call ActivityTwo from ActivityOne? Then how would I return to ActivityOne from ActivityTwo? For example, I have a listview with all the contacts on the host phone. When I tap on a contact, another activity shows information and allows editing of that contact. Then I could hit the back button, and I would go back to the exact state that ActivityOne was in before I called ActivityTwo. I was thinking an Intent object, but I am not sure. Could someone post some code?

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Android :: Call Activity From Widget?

May 30, 2009

I've read through the Application Fundamentals three times today (and I had done so before), but I still can't quite wrap my ahead around the task concept. Or I guess I thought I understood it, but usually, the results I am seeing don't match up to what I would expect to happen (maybe a tool to see the current tasks/activities etc. for debugging purposes would be a nice addition).

I have multiple widgets from my provider in the Launcher desktop, and each is using a PendingIntent with a different URI as data (so they should be separate intents) to open an Activity.

I want there to be only once concurrent instance of this Activity that the user can access. So clicking the widget (1) , pressing HOME (2), clicking a different widget (3), pressing BACK (4) should bring the user back to the Desktop.

Now I did manage to do this using launchMode="singleTask" - the existing instance is brought to the top, onNewIntent() is called and I am pretty satisfied with it.

However, supposedly there are other ways to achieve an equivalent effect (say with having the activity restarted), and I'd like to understand why I don't seem to be able to get them to work: In every case, instead of seeing the home screen after step (4) (after pressing BACK), I see the *previous* instance of the Activity.

For example, if I read this correctly:

"There's another way to force activities to be removed from the stack. If an Intent object includes the FLAG_ACTIVITY_CLEAR_TOP flag, and the target task already has an instance of the type of activity that should handle the intent in its stack, all activities above that instance are cleared away so that it stands at the top of the stack and can respond to the intent. If the launch mode of the designated activity is "standard", it too will be removed from the stack, and a new instance will be launched to handle the incoming intent."

Then simply using using the following code to start my Activity from my widget should do what I want, no?


So in (3) My activity should be launched using FLAG_ACTIVITY_NEW_TASK by the launcher, which due to process affinity would find the existing task (which would consist of a single instance of my Activity), and launch the new instance on top of it. This explains what I am seeing. Why doesn't FLAG_ACTIVITY_CLEAR_TOP cause the existing instance in the task to be replaced?

Even setting android:launchMode explicitely to "standard", as mentioned in the doc quote above, this doesn't seem to change things.

I also tried android:finishOnTaskLaunch="true", but the behaviour is the exact same was just described with FLAG_ACTIVITY_CLEAR_TOP (which seems to be the exact same as when doing neither and really starting an activity without any special attributes).

I should mention that If I click the same widget in (3) as I clicked in (1), i.e. using the same PendingIntent twice, I do get the previous instance brought to the front (not restarted), but again, regardless of whether FLAG_ACTIVITY_CLEAR_TOP or finishOnTaskLaunch are being used.

I find this especially strange since the docs about tasks don't seem to mention the intent itself being relevant at all. Application Fundamentals does at one point say "For the default "standard" mode, a new instance is created to respond to every new intent", but it's not clear what "new intent" means then. Is triggering a PendingIntent multiple times through a widget not multiple "new" intents then?

I also tried various combinations of the other related options, but pretty much got nowhere.

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Android : Closing Activity Completely / Process Killed By Activity Manager Service

Aug 2, 2010

Whenever the memory needs to be reclaimed, the process is being killed by Activity Manager Service in killPidsForProcess. I have a back button in my activity window on right corner of the title bar.

I want to kill the activity completely on clicking the close button. Can I reuse the same function and will it have any major effect? Please help me out in this.

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Android :: Accessing Battery Info Activity (or Any System General Activity)

Jan 20, 2009

I want to be able to show the Battery Info activity in my app, which shows things such as the exact level, battery health, etc.I'm not sure how I can get it, though a few applications such as Power Manager, Any Cut, etc. show this screen as well. I found in the source code of Settings this intent in a file called testing_settings.xml,But I don't know how to use it. I would guess from the fact that Any Cut has a list of activities, that a list of said activities exists somewhere, and therefore an easy way to access them exists, but I haven't found it.

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Android :: Force Activity To Call Finalize

May 20, 2010

My application contains 2 activities A and B. B is opened with startActivity(intent) in A, when B is closed with finish(), I found the method finalize() of B is not called.

My question is: How to force Activity to call finalize() when it is closed with finish()?

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Android :: Call TextToSpeech In Your Class - Not In Activity

Aug 16, 2010

I wrote successfully TTS with some references in Activity.

However, I want to call this TTS in my own class as below.


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Android :: Launch Activity Like Phone Call?

Sep 27, 2009

1. i have a service that will launch an activity. How to make the activity launched like a phone call? i mean when the phone screen is locked, it will awaken.

2. how to start a service right after downloaded and installed from android market?

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Android :: Launch Activity At End Of Phone Call

Nov 21, 2009

I would like to launch an activity at the end of a phone call. Could not find any reference to that. How can I do it?

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Android :: How To Call Function Of Activity From A Service?

May 16, 2010

I have an Activity (A) and a Service (S) which gets started by A like this:
Intent i = new Intent();
i.putExtra("updateInterval", 10);
i.setClassName("com.blah", "com.blah.S");
A have a function like this one in A: public void someInfoArrived(Info i) Now I want to call A.someInfoArrived(i) from within S. Intent.putExtra has no version where I could pass an Object reference etc.

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Android :: Call ListActivity From An Activity / App Crashes

Mar 23, 2010

My app crashes when i call a ListActivity from an Activity. I have searched on Internet and many people ask the same but i have not found any response. The only person i have found that solves the problems says that he solved changing manifest but he does not say nothing else. I i put the ListAvtivity as main activity in manifest app works ok buet if a set an Activity as main activity an then call ListActivity like:
Intent searchAct = new Intent(this, SearchResult.class); startActivity(searchAct);
then my app crashes. Des anybody know what happens?

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Android :: Want Call Methods Of A Activity From Service

Apr 27, 2009

Is it possible to call methods of a Activity from service. I am running a thread from a service and i listening to some external event from that thread. I am not able to call methods from that thread. Is there any way to call methods from a thread.

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Android :: IPhone Like Tab / Need To Call Some Activity Through Intent

Aug 16, 2010

I want to create 4(four) tab, on click of each tab i need to call some activity through Intent, upto this is OK, but without replacement of whole page, I would not like to replace tab, tab will remain (unchanged) same for each a every layout/activity, i.e, only lower part (content) parts will change.

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