Access the android notifications of other applications - android

Is it possible to programatically access the text posted on the android notification area (displayed by an application which is not my own)?
The logic I am after would be something like...
for each (NotificationMessage m in NotificationArea.Notifications)
{
String msg = m.GetMessage()
}

Unfortunately, no. This would create security concerns, possibly hijacking personal information. See This Thread

In Android 4.3 and above, use the NotificationListenerService. Otherwise use Accessibility.
http://developer.android.com/reference/android/service/notification/NotificationListenerService.html

This is possible with the accessibility service, but you have to pick up on notifications as they arrive (ie there isn't a list you can iterate around at any point). You'd need to build that up yourself.

Related

Bixby: I'm looking for a way to make alert or notification by Bixby

I am making a System which uses Bluetooth. But Bixby does not have Bluetooth API. So My plan was using Android Application and it catches notification then, send data by BlueTooth. But I recognize there is no Notification API in Bixby too.
So... Is there any idea to make a notification push by Bixby?
This feature is rather advanced. Here are some information that might help you.
Bixby is not allowed to edit contact or calendar other than using the already existing built-in capsule. Utterance example "add a meeting at 2 pm" would work fine already. There is no standard library for that.
If by "notification" you mean the pop up notification, there is a way to do so, but not directly from Bixby. The notification is an Android App notification that must sent by Android App. For example, let's call it MyEventApp and say you also have a MyCapsule. It is possible in MyCapsule using a deep link to request MyEventApp for a certain action (in this case, send notification or maybe schedule one)
For how to use deep link in Bixby please read https://bixbydevelopers.com/dev/docs/reference/type/result-view.app-launch as a starting point. There is also a github sample capsule.
The format for deep link (the payload-uri key in Bixby) depends on the MyEventApp and it's part of developer's responsibility to get the format correctly.
Please read carefully regarding https://bixbydevelopers.com/dev/docs/dev-guide/design-guides/design-principles.app-punch-out-policies Or your capsule submission might be rejected.

Is there a way to use Android system generated notifications in our app

I'm creating an app and its mainly depends on the battery notification which we receive when our battery level is low like 15%. However I know how to get the battery level, but I thought what if there is a way to use the existing notification based on which we can add features.
Please help.
There is a battery low broadcast that you can use, check out the documentation (scroll to "Monitor Significant Changes in Battery Level")
There is no "existing notification", insofar as the thousands of Android device models can do whatever they want when the battery is low. Not all will raise a Notification.
For those that do raise a Notification, there is nothing for you to "use":
A Notification is a Java object; your app cannot access Java objects from other processes
A Notification is configured by a variety of pieces of data; you have no idea what an individual device will use
You are certainly welcome to putter around the AOSP and see exactly what is used for low-battery indications in "stock" Android. Just bear in mind that what you find there is not going to be used on all Android devices and none of it will be part of the Android SDK (other than the generic Notification API).

Public Intents for Other Applications to Use

I am creating an app with a service, and I would like other apps to be able to interact with and extend it. I can think of two scenarios:
another app wants to interact with the service
someone develops a better version of the service that they would
like my app to use instead of my built-in service
Most of the things that I have read about actions say that you should name your action something like com.mycompany.appname.CUSTOM_ACTION. However, I do not think I should put the actions in my own namespace since other developers might want their apps to be able to receive them. Instead, I think they should give them a more public name, like intent.action.CUSTOM_ACTION.
Is there a convention for naming public actions? Is it ok that I name my actions like intent.action.CUSTOM_ACTION, or is that a no-no?
It's bad idea to give it generic names. It comes with your app and therefore you should stick to com.mycompany.appname.CUSTOM_ACTION namespace
openintents.org is a website that appears to allow developers to register intents that they want other applications to use.

android Outbound caller id - on/off

I wan to hide/show my caller id from my activity programmatically. I tried to find it in the android documentation but without the luck. Maybe you have any ideas?
I posted a question asking this on the Android Google group and got absolutely no answers at all. I've also seen a couple of other question on SO which also had no answers (or none that work).
I came to the conclusion that it simply isn't possible. My reasoning is this...
If I go to Settings -> Call -> Additional settings, I see an AlertDialog which has a HeaderTitle of 'Call settings' and I see a circular progress indicator and a message saying 'Reading settings...'.
It occurs to me that my phone is, at that point, accessing my phone/network provider. The resulting 'chooser' dialog gives me options for 'Network default', 'Hide number' and 'Show number' and when I make a selection (or even if I just 'Cancel' the dialog), I get another AlertDialog with circular progress indicator with the message 'Updating settings...'.
In short, it seems the Caller ID setting is not entirely 'local' to the phone settings and relies on interaction with the provider and, for whatever reason, as a result of this the Android APIs don't allow this to be manipulated programatically.
I'm not sure if this is something on the 'To Do' list for future versions of Android or if there are legal/security implications in allowing it to be done or some other reason. Whatever the case may be, I haven't found anybody so far who is able to explain why there isn't a method for TelephonyManager (for example) to simply switch this.
EDIT: No luck on getting the Additional Settings AlertDialog with the standard APIs either.
The reason I say that is that it is possible to pull up various parts of the device's 'Settings', e.g., in one of my apps I use android.provider.Settings.ACTION_WIRELESS_SETTINGS in the constructor of an Intent passed to startActivity(). This brings up the Settings page for enabling/disabling wi-fi, mobile internet and bluetooth.
android.provider.Settings has other similar ACTIONs for other Settings pages but there isn't even one for 'Call' never mind Call -> Additional Settings and nothing for the AlertDialog to allow you to choose to Hide/Show the outgoing Caller ID.
If this can be done then it would have to be an undocumented API unless I completely missed it (I spent a long time looking). I suspect examining the Android source-code may be the only way to find an answer and I haven't attempted that yet.
I have managed to get Additional call settings dialog. Explanation below:
Although it looks like it is part of the Settings, in fact it is part of the Native PhoneApp. If you take a look at the AndroidManifest.xml of the PhoneApp you will see that Activity GsmUmtsAdditionalCallOptions has defined IntentFilter for the android.intent.action.MAIN.
So, the code that I checked to work correctly on several phones:
Intent additionalCallSettingsIntent = new Intent("android.intent.action.MAIN");
ComponentName distantActivity = new ComponentName("com.android.phone", "com.android.phone.GsmUmtsAdditionalCallOptions");
additionalCallSettingsIntent.setComponent(distantActivity);
startActivity(additionalCallSettingsIntent);
If the #31# trick works for your needs for a single call then you could add a broadcast receiver that listens for the outgoing call notification and modifies the number to include #31# at the start before it gets dialled. Android allows the number to be changed on the way through like that.
Only works if your default is to enable caller ID and your network support #31# and you want to toggle it off using a widget, say.
The Caller ID is network specific not something that the phone controls. In fact in certain mobile network configurations the phone doesn't even 'know' its own phone number.
Some networks support sending an activate/deactivate caller ID network command. In GSM this is normally #31#. It can be permanent or on a per call basis.
Permanent requests the network to hide the caller ID for all calls.
Per call requests the network to hide the caller ID only for that call. The latter is achieved by prefixing the number being called by #31#, so for example calling #31#85432786426 would call 85432786426 hiding the caller.
Some networks support both, some only support one of them, and some do not enable it. Try your luck and try prefixing the dialed number with #31# and see if it works.
http://www.gsm-security.net/faq/gsm-caller-id-clip-clir.shtml
If you want a shortcut to the additional call settings, you can use App Cut and select GSM settings. It will place a shortcut on your home screen.

Android: Enable/Disable Auto Sync and Background Data

I want to develop an application that disables the Background Data (new feature in Android 1.5) and Auto Sync and then enables GPRS/EDGE connection and vice versa.
I figured out how to enable/disable GPRS/EDGE by changing the APN settings. (weird solution. However; Android developers couldn't think a user may want to disable GPRS/EDGE) But, I couldn't find a way to enable/disable Auto Sync and Background data.
I investigated the Android code and as I understood, the Sync operation is an intent. So, I wanted to reach with putExtra to the intent and trigger the enabling/disabling. But; I couldn't find the correct keyword. Or maybe I was totally wrong.
What is the right way to solve this?
In my HTC dreams, there is a checkbox to disable the auto sync. I can look for the menu arborescence if you wish so you can find what the callback function is in the Android source code. But I am pretty sure auto sync cannot be completely disabled. Unchecking auto sync will prevent sync from being performed on a timed basis, but it will occur everytime you run an app with sync capabilities if any network data connection is available.
Good luck anyway.
EDIT :
There are two ways to get the info you desire.
First, I think you can use the code in android-sources/packages/apps/Settings/src/com/android/settings/Utils.java to create an activity that will enlist all the keys of the intent then find the one you want.
The other way is to write a nice mail to the guy who made the Toggle Setting app (http://smartphoneandroid.com/2008/12/28/toggle-setting-perfect-app-for-android-phone.html) since he obviously found a solution to your problem. His email address is written in the app sheet on the android market. I won't write it here, but if you do not have access to real android phone, I can mail it to you on your mail address.
Background data is a secure setting, so cannot be changed by user applications. But bear in mind, it's just a setting - it's not enforced. Apps are meant to read it and respect it but I bet some don't.
To Disable the AutoSynch
ContentResolver.setMasterSyncAutomatically(false);
To Enable the AutoSynch
ContentResolver.setMasterSyncAutomatically(true);
Permission you require is
<uses-permission android:name="android.permission.WRITE_SYNC_SETTINGS" />
setMasterSyncAutomatically() on ContentResolver should do it. Check: general-sync-settings-auto-sync-checkbox-programtically

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