I am wondering whether is possible to use a BroadcastReceiver to listen for an Activity being launched. I have no control of the Activity I need to know about as it is from the Android platform.
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Is there any way to get the instance of a launched activity(or any view in that activity )of a application in another application.
View 1 Replies View RelatedIs there a way of recieving a notification of some sort when a activity is launched. I'd like to monitor which applications are used and how often. Is is possible to register for some broadcast telling me when an application is launched, installed, unistalled etc? I believe I found a discussion or solution to this yesterday when I was looking for something else, but I'm not able to find it today.
View 3 Replies View RelatedI want to start a project which contains a BroadcastReceiver and an Activity. The BroadcastReceiver doesn't communicate with the activity. But they share a same resource. Can i do it in only one Project (that means, i use only 1 apk to install both BroadcastReceiver and the Activity on my phone), or i have to develope them seperately in 2 projects.
View 3 Replies View RelatedApplications can have any number of launchable activities. I know how to get the list of these activities via PackageManager.
Is there a way to determine which activities can be launched via startActivity?
For example, the Documents To Go app has different activities that will start Word, Excel, Powerpoint, PDF, etc... I am able to launch all o these just fine.
However, it also contains some activities that I am not able to launch with startActivity... If I attempt to do this I get a SecurityException.
I want to be able to determine which activities I can safely launch and which I cannot so I only present the user with a list of activities that I can safely launch from within my application...
Like the title says, I need to detect when my app loses focus because another app is launched (Phone call comes in, or user hits Home etc.).
Overriding Activity.OnStop does not work because that is called even when switching activities within my app.
Is it possible to update a currently running activity from a BroadcastReceiver? I want to update my activity from a BroadcastReceiver that runs alongside it. When I run my app (from Eclipse), my activity starts. When the BroadcastReceiver is triggered, it currently tries to start the activity (with extras in the bundle...this is the important part), but nothing happens, presumably because the activity is already running. So my question is, how do I get the new information to my Activity (or even just tell the activity that there's new information to get if I stick the information in a database)? This seems like it should be fairly straightforward, but I'm clearly missing something.
View 3 Replies View RelatedI am just starting on an Android app and I am puzzled about why my Task activity stack is being reset any time the application is launched from the Home screen. I used the ADT tools to create the application in Eclipse. The main activity is ".UserLaunch" and it starts the activity ".About" when the user presses a button. If the user then presses HOME and then relaunches the app, .UserLaunch is displayed and is the only thing on the stack.
.UserLaunch has the launchMode singleTask. .About is standard. According to the documentation at http://developer.android.com/guide/topics/fundamentals.html#lmodes: "However, a "singleTask" activity may or may not have other activities above it in the stack. If it does, it is not in position to handle the intent, and the intent is dropped. (Even though the intent is dropped, its arrival would have caused the task to come to the foreground, where it would remain.) "The Task stack should be brought to the foreground and .About should still be displayed. I added Logging to all of the lifecycle events (edited to remove timestamps and shorten DEBUG/ and INFO/ to D/ and I/) and you can see that when HOME is pressed, .About cycles through onPause and onStop (as expected). Then when the app is again launched, .About is destroyed and .UserLaunch is restarted D/UserLaunch:(670): onCreate() D/UserLaunch:(670): onStart() D/UserLaunch:(670): onResume() I/ActivityManager(52): Displayed activity com.cequint.cityid/.UserLaunch: 4910 ms I/ActivityManager(52): Starting activity: Intent { comp= {com.cequint.cityid/com.cequint.cityid.About} } D/UserLaunch:(670): onPause() D/About(670): onCreate() D/About(670): onStart() D/About(670): onResume() I/ActivityManager(52): Displayed activity com.cequint.cityid/.About: 1031 ms D/UserLaunch:(670): onStop() I/ActivityManager(52): Starting activity: Intent { action=android.intent.action.MAIN categories= {android.intent.category.HOME} flags=0x10200000 comp= {com.android.launcher/com.android.launcher.Launcher} } D/About(670): onPause() D/About(670): onStop() D/dalvikvm(670): GC freed 413 objects / 34128 bytes in 72ms I/ActivityManager(52): Starting activity: Intent { action=android.intent.action.MAIN categories= {android.intent.category.LAUNCHER} flags=0x10200000 comp= {com.cequint.cityid/com.cequint.cityid.UserLaunch} } D/About(670): onDestroy() D/UserLaunch:(670): onRestart() D/UserLaunch:(670): onStart() D/UserLaunch:(670): onResume() Here is the relevant section of the Manifest: <application android:icon="@drawable/icon" android:label="@string/ app_name"> <activity android:name=".UserLaunch" android:label="@string/app_name" android:launchMode="singleTask" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name=".About" android:launchMode="standard"> </activity> </application> Anyone have any ideas why this is always resetting the Activity Stack?
Is there anyway to go back to a previously launched Activity while running an Instrumentation test? Currently, when I use sendKeyDownUpSync( KeyEvent.KEYCODE_BACK);, this forces my test to exit, rather than go back to the previous Activity.
View 2 Replies View RelatedWhile developing an alarm based application, i have stuck in a scenario.
When my alarm is fired, i can receive the event in BroadCastReceiver::onReceive().
Within this function, i want to notify/call a function, which is located on MainActivity.
How to achieve the same?
I've developed an application that receives a Broadcast and then launches an Activity, where that Activity queries a ContentProvider which pulls information out of the DNS in real-time.
I'd like to be able to shuffle this so that instead of going:
CODE:.......
It goes:
CODE:.......
i.e. if the query() returns no data I want to miss out launching the activity, and allow the Broadcast message to fall through as normal.
If the query() does return data, I want that Cursor to be supplied to the Activity, so that I don't have to go and query for the data again.
In turn, the Activity has its own UI which the user needs to respond to.
I have 2 Activities that need to communicate with each other: ActivityA and ActivityB
Say that ActivityA opens ActivityB. How do I unicast a message from ActivityB to ActivityA without closing ActivityB?
Here's what I tried: setResult() - but the intent will be delivered only when ActivityB closes sendBroadcast() - but this sends the intent to everyone listening to the action.
I only want the action to reach ActivityA since it spawned ActivityB.
I tried having ActivityA registering a BroadCast receiver, but I cannot target that via Intent's SetComponentName(). startActivity() - this brings up ActivityA, which I don't want.
When i have a broadcastReceiver say android.intent.action.MEDIA_BUTTON and i want to update the current activity's UI without creating a new activity, is there any good practice on this one?
What i know (might not be correct)
1) I can put the BroadcastReceiver in the same class as the activity and call the updateUI function after certain activity
2) Create a ContentObserver?
3) Communicate to a service created by the activity, use aidl. (I dont know how to get the current service if its registered from an activity)
4) Create a custom filter on the broadcastReceiver located on the same class as the activity, and use context.sendBroadcast(msg of custom filter) and in the custom filter call updateUI (same as one but more generic?)
The final flow is it would come from a BroadcastReceiver and ends up updating the UI without renewing the activity (unless the activity is dead?)
Kindly provide links/source code on your how you tackle this kind of problem.
Does anyone know how I might go about accessing an Activity in an application from a BroadcastReceiver (in the same application)?
(I have some state information in the Activity I'd like to update)
I'm not sure if there is a best practice for it.
Maybe it's easy, but I couldn't really figure this out right so far... I got a BroadcastReceiver waiting to get triggered by the AlarmMangager - this works fine.
Now: because the event, if it occurs, needs to refresh some elements on screen of the main Activity, I would like to send an Intent from that background BroadcastReceiver to my Activity - but only if it is currently in the foreground, aka active.
If it is not running or not visible, I don't care - and the last thing I want to do is start the Activity by my intent! I handle repainting of the views in my onResume method, so I don't care at all.
EDIT: my BroadcastReceiver is waiting for alarms that must be notified to the user. So, it must be there and declared in the manifest. The problem is: it will have to decide whether the mentioned Activity is currently up in front or not.
I'm developing alarm application. I'm using listview on activity to reserve alarm. after application finish BroadcastReceiver.onReceive() method, I want to remove check of list. But i dont know how to access to activity.
View 1 Replies View RelatedI have an application that launch a thread when a ToggleButton is pressed, but if I press the home button, a new activity is started (I can return to the first activity if I press the back button), but I want to recovery the first activity launched state, which have the reference of the initial thread.
This is my code:
org.test.test.java:
////////////////////////////////////////
package org.test;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
import android.widget.ToggleButton;
[code]....
Various parts of the Android system or Android apps are designed to launch a program, but aren't capable of launching an application shortcut. For example, they're willing to run a timer application, but they aren't willing to run its "start timer now" shortcut. One example is the samsung ICS lock screen, which is neat in other respects but suffers from this really lame limitation.
Is there an app that can be configured to run another app's shortcut? For example, I could configure the lock screen to launch "Fast Shortcut Helper", and fast shortcut helper will have already been configured to run the "start timer now" shortcut.
I've got an Android application which needs to be woken up sporadically throughout the day.To do this, I'm using the AlarmManager to set up a PendingIntent and have this trigger a BroadcastReceiver. This BroadcastReceiver then starts an Activity to bring the UI to the foreground.All of the above seems to work, in that the Activity launches itself correctly; but I'd like the BroadcastReceiver to notify the Activity that it was started by the alarm (as opposed to being started by the user). To do this I'm trying, from the onReceive() method of the BroadcastReceiver to set a variable in the extras bundle of the intent,Can anyone tell me what's different about passing a bundle from a BroadcastReceiver to an Activity, as opposed to passing the bundle from an Activity to a BroadcastReceiver?
View 2 Replies View RelatedI am trying to get a UI to present itself when an incoming SMS happens. When that happens, I would like to present a UI to the user.
I have a BroadcastReceiver class that listens to the SMS_RECEIVED event. I also have an Activity class that is capable of displaying the needed UI when the event happens.
The questions is: How do I start the activity from within the onReceive method of BroadcastReceiver?
I know others have done this but I can't seem to find any resources that illustrates how.
I'm struggling with my app that launches multiple instances of the same Activity using the same intent. My main activity is of class type A and it does a startActivity() of two children that are of the same class type B. So we have B1 and B2 launched. If B1 and B2 are both paused (by pushing back button and making sure finish() is not invoked on them so they are truly paused), how can A uniquely bring either B1 or B2 to the foreground again? I do want to launch a new B activity. I want to uniquely bring B1 or B2 to the foreground.
so both B1 and B2 were created like this... Intent intent = new Intent(context, B.class); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(intent);
Now I want A to bring B1 (or B2) to the foreground/front so I use the below code, but how do I distinguish B1 or B2 when starting the activity? This only brings the last instance of B that was on top to the foreground.
Intent intent = new Intent(context, B.class); intent.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT); startActivity(intent);
I've tried keeping around references to B1 and B2 and doing something like this, but this also only goes to the last instance of activity class B that was on top...
Intent intent = new Intent(B1context, B.class); intent.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT); B1context.startActivity(intent);
I even tried this, but it still doesnt get me my unique B1 or B2... Intent intent = B1.getIntent(); // i.e. the original intent that started me startActivity(intent); // still only brings to front the last B that was on top.
I have a widget that launches an activity, but when the activity finishes using the finish() I don't know how my widget can know about it since I can't override onActivityResult() which seems like the only way to listen when an activity closes...?
View 2 Replies View RelatedI would like to make my activity do something when user clicked the title bar. But I could not find any information about how to manipulate the title bar. Please kindly give me some advices.
View 9 Replies View RelatedI want to know when Android's contact launch activity is opened because my application opens after a call is finished and then the contact launch activity is opened after it meaning it will cover my app's activity leading to that I have to press "back" button to see my app. That is, I want to open my app after contact launch activity has been opened.
View 1 Replies View RelatedIn current activity, when user click the back key, I don't what it back to the last activity. Can I add a listener to listen to back key in current activity? When user click "back" key, it actually back to the activity I want it to go.
View 4 Replies View RelatedI need to execute some operation when the specific application is launched, it is possible to get notification when an application is to be launched, or after it is launched?
View 11 Replies View RelatedI have updated my android sdk to 2.1 version and was trying to build one application on that target.My application was bulid properly bt i am unable to launch tha emulator with the target 2.1. Its showing the message as:- "System image file too large for device's hardware configuration <74MB
View 2 Replies View RelatedI'm trying to figure out how my Activity can detect if it was launched by an alias as opposed to by the main icon.
Is it possible to do this?
CODE:............
alias1 and alias2 appear as expected in the Launcher, but I don't see any way in multipleEntryPointTestActivity to tell which of these icons launched the application.
I am studying android's code, I can find how ResolverActivity or ChooserActivity is being launched? how do they get launched?
View 4 Replies View RelatedIs is possible to get back a result intent when launching an Intent from a Notification? Similar to the way startActivityForResult() works ?
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