I have made an app, in that I need to check if internet is available then it should work otherwise should give popup.
As I have made whole app I want to avoid writing the internet connectivity check function in each activity or calling it multiple times.
So I am wondering is there an easy way to check internet connectivity of app in whole app by writing it in either Manifest or other way?
Thanks in Advance
In Android, there is a pretty neat resource called Broadcast Receiver. What you need to do is to declare a new class that extends a BroadCast Receiver object and then register in your manifest file for the "specific filter" that you are looking for, and whenever the connectivity goes away, or the network status change the Android SDK will launch an Intent in your app.
Check this question. :
Broadcast receiver for checking internet connection in android app
Related
I'm looking to expand my app to handle Guest Mode, introduced in Android L. I found that if I create a service with android:singleUser in AndroidManifest, with permission INTERACT_ACROSS_USERS, and I'm a system app by installing it in /system/priv-app, then my service is running even as I switch user. But my app needs to interact with the user, by being able to launch an activity, show a toast or notification. All of those things seems to not be possible. Is there a particular flag I need to set when I call startActivity so that it will launch a new activity from my service?
I found a way to do it. Basically have a singleton Service, which is a service with the android:singleUser="true" and with INTERACT_ACROSS_USERS and have the APK installed in /system/priv-app. Then have it broadcastAsUser to all users. You'll need to use reflection to access methods in UserManager. Then have a receiver instance which will receive the broadcast in the guest user's space, and then have the receiver startActivity.
There are several internal apis (comments as #hide) like Context.startActivityAsUser, NotificationManager.notifyAsUser to support it, but it needs build from source also with platform signature.
I'm triying to start a android service in android 4.0 when the device is booting, in boot time, but it's imposible , I had be used many codes, copy and paste. I had used code from here, stackoverflow of others examples and questions , but for me is imposible. I'm using android 4.0.1 in a table Acer Iconia A501. I put my code here. Somebody Can it try this code??? this is the page :This page please, it is easy
You need to register a broadcast receiver for the intent that is broadcast on startup. There is ZERO doubt that this is what you need to do.
See: BroadcastReceiver not receiving BOOT_COMPLETED
You need to do the same. Register a broadcast receiver and first make sure that you are catching the BOOT_COMPLETED event. Then its just a matter of doing a startService.
The problem is most likely in the Manifest. Check that you have exactly the right name for everything. Note the . in names like .MyBroadcastReceiver These are important. Missing just one thing will cause a problem.
Both the Receiver and Service definition must be perfect. Also check logcat and tell us what errors are there.
I am working on one network app, i have problem with tracking those red
marks check box. means that if "Data Enable" is check than
pro-grammatically i know in my App this Data Enable is check or
UN-check.
so like that all Data roaming and Use only 2G networks Also track.
i was lots of try to maintain track this but i can't success, i
really want help.
Thanking you.
There are several ways for this...
You have ConnectivityManager class in android. Did you try using that?
http://developer.android.com/reference/android/net/ConnectivityManager.html
This is available to let you know about the network state of your device.
What you can do?
And you can receive automatic notification of when the connection state changes via the CONNECTIVITY_ACTION broadcast
You can setup your Broadcast receiver and register your application to broadcast an Action
Alernatively you can also work with services depends upto Architecture of your application
I guess any internet connection should be fine for you if you only worried about Internet
Then start your process as you want to. :)
I have a registered Broad Cast receiver in my app to store USB connected/disconnected state in Shared Preferences. Its working Fine.
Now i wanted to perform a task immediately if USB connected and my application is running. how can i do this?
If my application is not running , i ll perform the task in my first activity based on the Shared Preference value.
Please give some ideas to do this..
I have paste some code which shows how to check for running services here.
If you looking for activity use RunningTaskInfo instead of RunningServicesInfo.
Is it possible in android to start an activity on receiving a file over bluetooth? I do not have a bluetooth connection established inside the application. I wish to know if a user externally accepts a file, could my application register this event and start an activity. Maybe by checking for a specific file name in a known path.
I have looked into passing intents of various kinds to even start activities residing in other applications.
Thank you.
i think it can be done with BroadcastReceiver and BroadcastReceiver.PendingResult
But PendingResult is available only in honeycomb(int version 11).