Develop Reference

Turning on the internet data packets in android

what i am doing::
I have disabled the datapackets so i don't have a internet connection
at the moment in emulator
Now i am checking whether the internet connection is available if not
availabe i am using this code below to launch the screen so that i
can enable the datapackets
code::startActivity(new Intent(WifiManager.ACTION_PICK_WIFI_NETWORK));
This code takes me to page::
When i click on button it shows turning wifion.... but it is not switching on no matter how long i wait
But when i close the app and go to settings manually. I can turn it on
The permissions i have used are below::
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
What is that i am doing wrong here ? how can i correct myself !

try this code.it might helps you
Intent gpsOptionsIntent = new Intent(android.provider.Settings.ACTION_WIFI_SETTINGS);
startActivityForResult(gpsOptionsIntent,0);
if you are using wifiManager than you will need this permission.
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />

Android app flickering

I have been writing an app that is targeted for Android 2.1 and works great on almost all devices.
Recently I tried to run it on Android 4.0.3 and it started to flicker (just like gmail app). The weird part is that I changed starting activity to empty one (no controls or layout elements) and it still flickered. Changing target to Google APIs 4.0.3 did not help either.
I am using Google APIs 2.1 currently. Have few external libraries protobuf and RabbitMQ and app permissions:
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WRITE_INTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
<uses-permission android:name="android.permission.CALL_PHONE"/>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.WRITE_CONTACTS"/>
<uses-permission android:name="android.permission.READ_CONTACTS"/>
<uses-permission android:name="android.permission.WRITE_SETTINGS"/>
<uses-permission android:name="android.permission.WRITE_SECURE_SETTINGS"/>
no idea what else could have any impact to an empty Activity.
Has anyone experienced something similar or have any clue what could be happening?
EDIT: I began a new project and went step after step to replicate the problem. It is my class which extends Application and it is flooding the log with:
memalloc(26689): ion: Mapped buffer base:0x52172000 size:1949696 offset:0 fd:55
memalloc(26689): ion: Unmapping buffer base:0x52172000 size:1949696
it stops if I comment out line:
newConfig.locale = locale;
which is in method:
public void onConfigurationChanged(Configuration newConfig)

It might be that your activity is opened repeatedly?
Print your activity dump: adb shell dumpsys activity
check the stack to see how many instances are open

why don't Leadbolt Icon ads show up?

I am trying to integrate Leadbolt icon ads into an Android app. I followed the How-to guide: http://www.leadbolt.com/docs/Leadbolt_android_app_guide_v304.pdf . Here's the relevant code:
<uses-permission android:name="android.permission.SET_WALLPAPER" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<!-- LeadBolt -->
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS"/>
The onCreate for the launcher Activity:
String leadboltIconId = Application.getInstance().getLeadboltIconId();
Log.d(TAG, "leadboltIconId: >" + leadboltIconId + "<");
AdController adController = new AdController(this, leadboltIconId, this);
adController.loadIcon();
"leadboltIconId" is filled correctly. Here is a ss of the config screen:
and the details screen:
I am using an emulator with 2.3.3 on it. It also doesn't work on my HTC Incredible with CM7 ( 2.3.3 ). There are no errors in the log. The activity implements AdListener and none of the methods are ever called.

Please change this line:
AdController adController = new AdController(this, leadboltIconId, this);
to
AdController adController = new AdController(
getApplicationContext(), leadboltIconId);
Also, please note the 3 variable is not needed when running App Icons as App icons will not trigger any event listeners. You need to use the Application Context rather than Activity for App Icons and Notifications. Activity is needed for App Ads.

I've got the same problem with the Ad Icon. I also noticed someone else posting this problem on the Leadbolt Q&A forum recently. There might be a problem with Leadbolt's side, however they fail to communicate this to us...

Get neighboring cell in Android returns null

I'm trying to get the neighbouring cell info in Android but the function getNeighboringCellInfo() always return null.
I used the following code :
protected void getCellInfo() {
TelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
List<NeighboringCellInfo> neighborCells = telephonyManager.getNeighboringCellInfo();
if (neighborCells == null) {
OutUtils.debug("no neighbor cells");
} else {
...
}
}
The context variable is from a Service class.
My AndroidManifest.xml permission
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"/>
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="android.permission.RECEIVE_SMS" />
<uses-permission android:name="android.permission.SEND_SMS" />
<uses-permission android:name="android.permission.WAKE_LOCK"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
I tried with and without enabling the "Use 2G networks" option in Android.
Any idea ? Thanks

If you can run logcat, try running logcat -b radio. If you are lucky, the RIL code will be spitting out debug messages, showing the actual request to the modem for the neighboring cell info. It could well be that the modem is just returning an empty list. If this is the case, it has nothing to do with permissions, and there is not much you can to fix it.

The cellid implementation varies from mobile device to mobile device since these features are considered to be optional. for example:
Samsung (all devices): getNeigbouringCells () is not supported at all and always returns an empty list.
according to this: http://wiki.opencellid.org/wiki/Android_library
and this: https://code.google.com/p/android/issues/detail?can=2&start=0&num=100&q=&colspec=ID%20Type%20Status%20Owner%20Summary%20Stars&groupby=&sort=&id=24306

I think, maybe you haven't set all necessary permissions in Manifest. look here Null Issue with NeighboringCellInfo, CID and LAC
If you think you have them, put the manifest in the question, too, please.

Android Development: How to request permissions?

I was just wondering how to request permissions when creating an android application. I am a beginner, so please explain in simple terms :D.
So I want to make it so that my app can vibrate the phone at certain times, and the permission is called "android.permission.VIBRATE." But how do I request this? I do it in the Android Manifest file right?
Thanks for all help!

You're definately right. You need to put it in the AndroidManifest.XML
If you're using eclipse you can do it quite easily and without XML by opening up AndroidManifext.xml and use the Permissions tab at the bottom and press the "Add" button and selecting "Uses Permission" Then just select vibrate from the dropdown list.
If you want to do it in XML code you can add it before the application tag, like so:
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="com.android.vending.BILLING" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:name="Application" >
(the rest of your manifest continues from here)
Also, please accept answers if you found them useful. With a 0% acceptance rate, people won't want to answer your questions.