Android :: New Activity Instance Created For Every Intent-filter?

Feb 6, 2010

I'm using an intent-filter on URLs for my activity:

CODE:...............

the launchMode attribute is set to "singleTop", but it looks like a new activity is created every time I click a matching url. I thought that if the activity is already alive somewhere, it would simply be brought to the front of my activity stack?

I tried this on the emulator/device, same behavior, a new activity instance is always created.

Android :: New activity instance created for every intent-filter?


Android :: Handle Existing Instance Root Activity Launching Root Activity From Intent Filter

Apr 3, 2010

I'm having difficulties handling multiple instances of my root (main) activity for my application. My app in question has an intent filter in place to launch my application when opening an email attatchment from the "Email" app. My problem is if I launch my application first through the the android applications screen and then launch my application via opening the Email attachment it creates two instances of my root activity. steps: Launch root activity A, press home Open email attachment, intent filter triggers launches root activity A Is it possible when opening the Email attachment that when the OS tries to launch my application it detects there is already an instance of it running and use that or remove/clear that instance?

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Android : Can't Get Intent Filter To Launch Activity From A Uri

Aug 14, 2010

I'm trying to figure out how to launch an activity in my app from a custom URI such as myapp://myuriactivity I've read a lot about the intent and intent filters in the android references and also read several examples, but for some reason I can't get my simple test to work. Below is my manifest file, can anyone tell me what I'm doing wrong? With the below file, if I open the browser and try to navigate to http://org.test.launchtest it just says the page doesn't exist. Shouldn't this work?

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Android :: Filtering Urls Within An Activity's Intent-filter?

Feb 6, 2010

I'm registering an intent-filter on an activity to listen for url clicks from a certain domain:

CODE:.............

This works, but is there a way to filter out certain urls from my domain? For example, my app can only do something useful for the user if it gets a url like: www.mywebsite.com/orange

But if the user clicks on a link like: www.mywebsite.com/blue

I can't do anything useful for them, so I'd like to just let them continue using the browser to open that url. Is there a way I get a chance to see the URL before android pops up the chooser dialog and presents my app as a possible handler for the url? Is there some method in Activity which allows me to filter?

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Android :: TaskAffinity Causes New Instance Being Created When StartActivity

Jun 9, 2010

I have a problem about taskAffinity of Activity. Activities A and B with the same taskAffinity.

A starts B with FLAG_ACTIVITY_NEW_TASK and the B starts A with FLAG_ACTIVITY_NEW_TASK again. Dumpsys activity of system gives us task stack like below: TOP-> A B A

According to SDK's reference to FLAG_ACTIVITY_NEW_TASK, the result is supposed to be like below: TOP -> A B

If we did not set taskAffinity, A will not be created again but in different task stack from B. (A and B are in different Apps)

After a little more research, we found FLAG_ACTIVITY_REORDER_TO_FRONT is what we want.

My question is whether SDK' reference to FLAG_ACTIVITY_NEW_TASK is wrong?

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Android :: Intent Object Not Triggering Filter

Jun 25, 2010

Perhaps I'm misunderstanding how Intents and intent-filters work, but it seems to me that this should be a strait-forward case. However it's not working. Here is the Intent I'm sending:
Intent i = new Intent(Intent.ACTION_VIEW);
i.setType("vnd.android.cursor.item/vnd.connectsy.event");
startActivity(i);
And here is the intent-filter:
<activity android:name=".events.EventView">
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<data android:mimeType="vnd.android.cursor.item/vnd.connectsy.event" />
</intent-filter>
</activity>

And finally, the error I'm receiving:
android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.intent.action.VIEW typ=vnd.android.cursor.item/vnd.connectsy.event }

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Android :: Intent Filter For Http Scheme

Sep 14, 2010

I built an Android application that requires OAuth. All was working well using a custom scheme call back which is intercepted by Android. It seems that Yahoo have changed the goal posts and now the custom scheme is not accepted by Yahoo.I am now looking at possible alternate approaches. My first attempt is to use a normal http scheme and modify my intent filter to intercept the new URL. I have the following in my AndroidManifest.xml :
<intent-filter>
<action android:name="android.intent.action.VIEW"></action>
<category android:name="android.intent.category.DEFAULT"></category>
<category android:name="android.intent.category.BROWSABLE"></category>
<data android:host="www.test.com" android:scheme="http"></data>
</intent-filter>
Where www.test.com will be substituted with a domain that I own. It seems :
* This filter is triggered when I click on a link on a page.
* It is not triggered on the redirect by Yahoo, the browser opens the website at www.test.com
* It is not triggered when I enter the domain name directly in the browser.

So can anybody help me with
* When exactly this intent-filter will be triggered?
* Any changes to the intent-filter or permissions that will widen the filter to apply to redirect requests?
* Any other approaches I could use?

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Android :: Intent Filter By Protocol Specifier

Oct 12, 2010

are there any docs covering the filtering of the protocol specifier? Something like the market application does with "market://", i'd like to make with my application.

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Android :: How To Send Message Through Intent Filter

Jul 2, 2010

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

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Android :: Intent Filter For When At Contact List?

Oct 27, 2010

I'm looking for an intent filter for when you are at the contact list and you long press a contact so a the menu comes up

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Android : What Is An Intent-filter Show An App When Sharing A Url?

Nov 5, 2010

I have looked at the intent-filter documentation and I can't figure out this specific intent-filter. I'm looking to use ACTION_SEND because I only want the app to show up in "Share" menus in other apps. I only want to show up in the share menu if the text of the intent is a url. For example, what is shared from the Android Browser's share menu. I don't want the app to appear in the share menu if it's just text and not a url.

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Android :: Creating Intent With Action / Any Way To Filter Results

Jul 20, 2010

When creating an intent with action send to send some data, is there a way to filter the results that are included in the activity chooser that is created using Intent.createChooser? I have not seen a way to do this other than setting the mime type, but it is not flexible enough.

For example, there is a situation when I want e-mail apps to be the only results in the activity chooser dialog. Setting the type to "text/ html" successfully filters this down to email apps, except when bluetooth is enabled. Bluetooth appears in the list as well, but this is not desirable. Surely there is a way to have a little more control over the results?

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Android :: How Broadcast Receiver And Intent Filter Behaves?

Jul 6, 2010

I am new to android platform.please help me out how the Broadcast Receiver and Intent Filter behaves in android.please explain in simple line or with example.

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Android :: Retrieving File Path When Using Intent Filter

Oct 5, 2010

I realise one has to use an intent filter to associate a file format with an application, but once this is done how does the app 'receive' the path to the file that was chosen? Is there a special method it calls on the Activity?

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Android :: Catching An Action Without Setting An Intent Filter?

Jan 11, 2010

I'm trying to catch an action like ACTION_HEADSET_PLUG. But I think it might be too much to set this action on the manifest file.

How could I register a listener for this action? I only need to care about it when my application is running not all the time as I think it would happen when registering it under the manifest file...

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Android :: Default When Using Multiple Actions In Intent-Filter

Jul 6, 2010

Trying to grok intents and actions in android and looking through the documentation. But one thing I keep seeing is an intent filter with multiple actions defined.

Like this, from the above link:

CODE:...........

But, if you call that activity, how does it choose which action is chosen?

For that matter, that linked to example has multiple activities that all contain the same actions, "android.intent.action.VIEW" for example. When calling this with something like content://com.google.provider.NotePad/notes how does it even know which activity to use?

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Android :: Handle OAuth Callback Using Intent-filter

Apr 19, 2010

I am building an Android application that requires OAuth. I have all the OAuth functionality working except for handling the callback from Yahoo.

I have the following in my AndroidManifest.xml:

CODE:..............

Where www.test.com will be substituted with a domain that I own.

It seems :

This filter is triggered when I click on a link on a page. It is not triggered on the redirect by Yahoo, the browser opens the website at www.test.com It is not triggered when I enter the domain name directly in the browser.

When exactly this intent-filter will be triggered? Any changes to the intent-filter or permissions that will widen the filter to apply to redirect requests?

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Android :: How To Perform A Negative Match In Intent Filter?

May 16, 2010

In an Android manifest, how can I use a negative match in the android:pathPattern? I'd like to use a pathPattern that matches on all URLs except for a specific hostname, if it's possible.

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Android :: How To Get Calling Activity Instance From Called Activity?

Jul 9, 2010

I have a Contact Activity which is derived from ListActivity, which displays list of contacts, and on click of item, a new Activity Message Activity derived from ListActivity is initialized.Now I know, I can pack some information in Bundle and pass it before creating activity, but is there a way I can get instance of "ContactActivity" in onCreate method of "MessageActivity"?

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Android :: 1.6 SDK Level 4 Project / Receiver Intent Filter Never Invoked

Apr 4, 2010

I'm trying to get a BroadcastReceiver invoked when the screen is turned on. In my AndroidManifest.xml I have specified:

<receiver android:name="IntentReceiver">
<intent-filter>
<action android:name="android.intent.action.SCREEN_ON">
</action>
</intent-filter>
</receiver>

However it seems the receiver is never invoked (breakpoints don't fire, log statements ignored). I've swapped out SCREEN_ON for BOOT_COMPLETED for a test, and this does get invoked. This is in a 1.6 (SDK level 4) project. A Google Code Search revealed this, I downloaded the project and synced it, converted it to work with latest tools, but it too is not able to intercept that event.

http://www.google.com/codesearch/p?hl=en#_8L9bayv7qE/trunk/phxandroid-intent-query/AndroidManifest.xml&q=android.intent.action.SCREEN_ON

Is this perhaps no longer supported? Previously I have been able to intercept this event successfully with a call to Context.registerReceiver() like so:

registerReceiver(new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
// ... }
}, new IntentFilter(Intent.ACTION_SCREEN_ON));

However this was performed by a long-living Service. Following sage advice from CommonsWare I have elected to try to remove the long-living Service and use different techniques. But I still need to detect the screen off and on events.

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Android :: Specify Scheme Specific Part In Data Tag For An Intent-filter?

Feb 3, 2010

I want to set up a BroadcastReceiver to handle PACKAGE_REPLACED, but I only want to be notified when my package is replaced. It works fine if I specify a data tag with scheme="package" but then I get notified when any application is reinstalled or upgraded. I can't figure out how I'm supposed to specify the package name which is in the scheme specific part -- that is, when my BroadcastReceiver gets the intent in onRecieve(), if I do intent.getData().getSchemeSpecificPart(), that's the package name, but is there any way I can filter for only that in my intent-filter?

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Android :: Service Intent Filter Action String Resource

Sep 13, 2010

I have a Service defined in the manifest with an intent filter that refuses to match when specified as a String resource but works when the literal action is entered in the manifest. Is there any reason I should not be able to use a String resource with an action in an intent filter?

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Android :: Correct Intent Filter Configuration To Associate File Type?

Nov 10, 2010

This question has been asked [numerous times] before, but I have not seen any definitive answers, or examples of code that actually works. I would like to associate an Activity with a particular file type. For discussion, assume that I want my Activity to be associated with PDFs. Here is what I currently have. I have experimented with many different values and combinations of values in the intent-filter, but I have yet to get my Activity to start when a PDF is selected.

<activity name="com.mycompany.MyActivity">
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:scheme="file" />
<data android:mimeType="application/pdf" />
<data android:pathPattern="*.pdf" />
<data android:host="*" />
</intent-filter> </activity>

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Android :: Activity Parent - Created Activity Returns A Nul ?

Apr 7, 2010

Can someone tell if why when starting an activity with startActivity(intent) , calling getParent() in onCreate() of the new created activity returns a nul ?

Also how could I obtain the parent of an activity created in such a way ? Can a reference of the activity below the current activity in the activity stack be obtained ?

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Android :: Get Instance Of The Activity?

Jul 9, 2010

Is there a way to get an instance of the activity that has called the currently running activity from the intent object that has been passed to it? eg. if A has called B, I would like to retrieve A's instance from the intent in B's onCreate method. As Activity is not Serializable i am not able to pass the instance in the extras bundle.

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Android :: Recover An Instance Of An Activity

May 9, 2010

I have a bunch of tab activities (which I implemented myself, didn't want to use the tabviews with activities inside them), so It's basically 5 activities calling each other every time the user clicks on the tabs displayed as a row of LinearLayouts at the bottom of the screen.

The thing is that the way I do it now, everytime the user jumps from one activity to another, a new activity is created and launched. Of course, I can see I'm wasting resources this way. So what I would like to do is to create every activity only once; and then if the user wants to go back to the previous (or any one that was already created and is probably paused) just check on some kind of list or array to see if the activity can be recovered and only in the case it can't; to lauch a new one.

My question is, how can I check this? should I save the intents? and how to recover the activities afterwards? I'm kind of new with java.

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Android :: Get Instance Of The Launched Activity

Jul 19, 2010

Is there any way to get the instance of a launched activity(or any view in that activity )of a application in another application.

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Android :: How Finish An Activity In This Instance

Aug 16, 2010

We all know that hitting the back button on the device doesn't kill the application, it merely finishes (destroys) the activity running on the foreground.

Well I have come across some code which helps me capture the back button signal so that I cannot exit the application. The only way to exit it in such cases is to press the home key.

Now this situation presents me with a unique disadvantage! The inability to kill finish the application on a time of my own choosing allows the application to keep running in the background like nothing has changed.

So in such cases is the task manager my only friend or is there a way for me to otherwise kill this application?

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Android :: Android Intent-filter PathPattern Numeric Matching

Sep 3, 2010

I'm adding an intent filter to my android application and I want it to catch requests that go http://www.somedomain.com/[numericValue].I only want to catch it if the path is numeric, but if it has text, I don't care about it.I tried the pathPattern of [0123456789]*, but that didn't work. Is this possible to do?

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Android :: Android Intent Filter Data Path Example

Aug 24, 2010

I tried using the following data in my intent filter:<data android:scheme="http" android:host="an.example.i.p" android:pathPrefix="t" />.

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