I'm currently writing on some piece of code in android 2.1 that is supposed to measure the signal strength of the gsm signals. what i need is some kind of list with some kind of network IDs matching the corresponding signal strengths.
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I'm having an issue with my wifi not connecting. I have to AP's in my house, on different channels. They work perfectly fine. I have the wifi toggle setting on the home screen that I usually press to toggle the wifi on/off. Recently, it hasn't been working after I disconnect from 3G and connect to wifi. It says the wifi is turned on, but it won't connect to either of the remembered APs. The only way to get it to automatically connect is to go to settings and view the list of APs. Only then will it connect to one of the two APs. This is really annoying, as it seemed to only start this recently and nothing has changed. My wifi sleep policy is never to turn off. It's a droid eris with 2.1 OTA. Ran a virus scan, nothing. Any ideas?
View 3 Replies View RelatedI am developing an application that is used for a sort of tournaments. The requirements are that if the application is running it should be impossible to make and receive phone calls. Can I disable 2G/3G from within my app? (Airplane mode is no option, because I still need GPS).
View 2 Replies View RelatedI am initiating the design of an application that would require an Android phone to connect to another Android phone via Ad-Hoc networking with or w/o security. I would like to know if Android supports ad-hoc networking. I would also like to know what is the average range of the wifi signal from an Android handset point-to-point with no obstructions. I cannot find any information about this on the web.
View 10 Replies View RelatedA Wi-Fi device running Android looks like being able to connect to a secured Wi-Fi access point using WEP, WPA, etc. I actually can't figure how to setup a "WPA Enterprise" secured Wi-Fi connection wich requires a certificate. I can't find a way to import a security certificate. I went to "Settings" app, "Wireless controls" menu, "Wi-Fi settings" menu, clicked the "Advanced" menu, "Security certificates" menu, clicked "Add certificates" menu to get an empty list. I tried to put the .cer file on the SD card but the list is still empty.
View 4 Replies View RelatedCurrently I have 2 mobile networks for my mobile say they are A and B. Is there a way to automatically detect the mobile networks if there are A and B then choose A? Or just simply choose A no matter whether there is B available? I want to search for GSM networks operators
available and select the preferred one.
Is there any widget in the market that supports all major social networks (facebook, myspace, twitter). Sort of like that "happening" widget for the hero?
View 2 Replies View RelatedI'm trying to scan for wireless networks and found this helpful source on the net. Unfortunately it's not working and I have no idea why. My problem is that I can't wait 10 minutes for the result - I need them within a few seconds and thought about setting the boolean variable waiting on false as soon as I get a result, well it runs forever. Looks like nothing is received.
// -- Sample WiFi implementation - http://groups.google.com/group/android-developers/browse_thread/thread/f722d5f90cfae69 IntentFilter i = new IntentFilter();
i.addAction(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION);
registerReceiver(new BroadcastReceiver(){
@Override public void onReceive(Context c, Intent i){
// Code to execute when SCAN_RESULTS_AVAILABLE_ACTION event occurs
mWifiManager = (WifiManager) c.getSystemService(Context.WIFI_SERVICE);
wireless = mWifiManager.getScanResults(); // Returns a <list> of scanResults
waiting = false;
} } ,i);
// -- End Wifi Sample mWifiManager.startScan();
while (waiting) { try { Thread.sleep(200);
} catch (InterruptedException e) {
// TODO Auto-generated catch block e.printStackTrace();
} Log.d("PROJECT1","Wifi WAITING");
}
I'm developing sort of a wireless scanner, so I need to scan every X seconds. I know I should use WifiManager and startScan() to get the networks and then register a receiver to receive the event once the scan has finished. However I'm having problems when trying to figure out how to scan periodically. It's more like a design problem. My solution so far has been to create a Service which takes care of the scanning, besides the main Activity.
I think this is correct. So, how could I tell this Service to scan every X seconds? I've thought it may have a Thread object, call its Scan method during tart_services() and then take it to sleep. Also I thought I could just get rid of the Service and run the Thread from the main Activity, but then I guess it would die whenever the Activity is not visible. None of then seem like a really good solution to me, and I think there must be an easier way to do this.
I want to download an image from the 'net and set it as the users background. This works great over wi-fi, and some 3G networks, but others (T-Mobile UK, for sure) seem to compress the images before sending them. This effect is noticeable when using the browser, too - however, if you long press on an image and save it, when viewing in the gallery it is either not compressed at all, or substantially less so. I want to be able to do this in my own app.I assume it has something to do with the HTTP headers, but of the ones I've modified, none has made a difference.
View 2 Replies View RelatedI am planning to give mobile phone development a shot and was thinking about making some simple multiplayer games. I know latency over local wifi is probably fine but what are the issues with latency over GPRS/3G?
I've searched and the best I've seen is someone saying it was 'high', without presenting any concrete numbers. I suppose latency fluctuations are important as well - does anyone have any info on this?
I am programming for google android and I wonder if the scans for wireless 802.11 networks are done passively or actively? I mean: Does the device actually emit a beacon request signal on
WifiManager.startScan()
Or does it just listen for beacons sent periodically by the access points?
We have an application where we'd like to use the WiFi connection on a local network (intranet) with no Internet connectivity, and use the 3G connection simultaneously as the data connection to the internet. To summarize:
We need to connect to two distinct networks at the same time - We need data traffic to be properly routed to the appropriate network based on its IP address - We need both radios (WiFi and 3G) on and active. This can easily be done on the iPhone, but not sure if it can be done on the Android.
If I use getScanResult() I will be able to get the information about different networks but for example if I am in a school where all access points are under network (SSID) "The school". Will getScanResult() filter out other access points than the one it's closest to and only return 1 BSSID for that network?
View 2 Replies View RelatedI'm looking for an app that will automatically enable my wifi for designated networks. Basically, the only location currently I really desire to use wifi is at home since if I'm at home, my phone is likely charging (since wifi eats battery) and the speed beats 3G. I'm going through appbrain.com and finding a lot of apps that automatically scan and connect to open networks, automatically connect to the fastest network, a bunch of wifi toggle widgets...nothing really for making conditions for what networks it will connect to, especially one that has a password.
View 4 Replies View RelatedI'm downloaded several wifi apps, but I'm looking for one that will automatically connect to open networks.
Or at least to saved/remembered networks without me having to scan and connect.
Anybody know an app that can control what to sync, and what not to sync on a WiFi network. I would like my hero only to sync exchange when at work.
View 1 Replies View RelatedI am about to build my own dialog to notifiy the user the app doesn't reach the internet, and I am planning to put two buttons on it. Settings, and Cancel as it is seen in many other apps.
I am wondering now, How do I launch settings directly on Wireless & networks page?
I am on my first Android application and I am on a timeline so details and examples will be useful since my knowledge is still minimal. I want my first screen to present the user with a list of activities to choose from. In my situation it is a recipe app where the user first chooses the type of food, such as, Beef, Chicken, or Pork. I want the application to launch an activity depending on the list item that the user clicked on. I am not sure if I should use a list view, a text view, a scroll view, a list activity, an activity group...
View 1 Replies View Relatedwe are wroking on the displaying of mails from an email . we got the list of emails stored . we need to show a small text screen which consists of the some content of the body when the email in the list gets focus .
View 4 Replies View RelatedI'm trying to create a multiple selection list where the selection is represented graphically rather than with checkboxes.My list has checkboxes, but I want them to serve a different purpose. I'm using a cursor to hold my data and created a custom view binder for the SimpleCursorAdapter. I did this for the checkboxes and general flexibility.So far I haven't even been able to show one line as being selected. I've enabled multiple selection on the list and denied the children of the list item focusability. I've tried manually changing background color with the position fed in through the list item click listener. But the wrong items get changed and they don't even change to the right color. I've enabled touch focusability with no improvement either.Ideally, I'd like the trackball highlight focus bar to appear in multiple places. But I don't think this is possible unless you use the drawable directly. But I don't know how to find or apply it. My next idea was to have a slim view bar that changes color. But I had the same problem with the wrong item being selected so I never finished trying to guess the index position to see if this would work. My most recent idea is to completely swap out the view for another one if it's selected. But I have no idea how to do this either. I'm thinking of using an array list to store the _id s of the items that need a different view to get around the wierd selection problem. I'm also thinking of passing in the ID field as my from and the selection view as the to for my adapter. Then I'd intercept it with my binder and change the view accordingly. But once again, I'm not sure how to do this successfuly.
View 7 Replies View RelatedI am trying to display the text from json in a list view.But my problem is that i cant figure out how to display them in list view. I also want to get only some of the text from url(for example, alerttext and date). Can anyone help me in declaring the list adapter and list view in order to display the data in the way i want.
View 1 Replies View RelatedDoes anyone knows if the wifi networks for android phones are based on Access Point Names (APN) ? I ask because in my android application I plan to overwrite some fields in all APN's to disable cellular network, but I still want to have available the wifi for the user.
View 1 Replies View RelatedThat's basically the problem. My Visual Land Prestige 10 Android 4.0 10" Tablet i got from WalMart readily connects to all kinds of public wi-fi networks with no problems. BUT it will not connect to my home wi-fi network, which is from Cox Cable via a Linksys router.
I have several other devices, including a Palm Tablet, a Galaxy S3, and an Asus laptop, and all of these connect to my home wi-fi with no problem.
So why does my tablet not do so? It recognizes the existence of the wi-fi network, but never connects. It just says "saved", and that's it.
I'm about to purchase an HTC Desire after it comes out (I'm in Canada) and wanted to know if you can only set the phone to connect to one Wi-Fi network or if I can set multiple networks so the more places I go, like a friends house, I use less data.
View 4 Replies View RelatedMy WiFi doesn't reach upstairs in my house, and for that reason, I have a wired connection that comes upstairs. I set my laptop up to share the wired internet connection through an AdHoc for other devices...except my Incredible. Kinda weird that Google didn't have this feature built in without having to root the phone. Does anyone know a way to connect to an AdHoc?
View 1 Replies View RelatedDoes anyone know if this is a real battery eater and is it worth switching off?
View 19 Replies View RelatedI'm wondering if there is an app out there that i can use to set time for the mobile network to be on and off. I.E i want it turned off while i sleep and on during the day, i know i can do it manually but i keep forgetting and using up more of my allocation that i need to.
View 2 Replies View RelatedI was wondering if its possible to "upgrade" my phone to support different networks? (ie. I have the Desire HongKong, which supports 850/1900 HPSA, but want to know if there is an upgrade I can perform to support more/different networks? Say 900/2100 HSPA?
View 1 Replies View RelatedI'm trying to tackle a problem that seemingly many Android developers have, which is how to intersperse lists with non-list data, in one big scrollable pane.The model I have in mind is the screen for an individual app in the Market. You have a big description, a list of a few lazily loaded comments, and then some individual items that do different things, like visit the developer's web page, call them, etc. And then in between them all, are nice section headers.Emulating this approach seems to be extremely hard. I've read enough SO answers and mailing list posts to know not to put a ListView inside of a ScrollView, but I want the same effect without using addHeader() and addFooter() with very complex header and footer views. I've tried using a LinearLayout that I stock with views myself, but I can't get the pleasant click effects that default list items have (the orange background, white for long-click, etc.).
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