Android :: Electro Magnetic Field App

Mar 24, 2010

I have noticed a rash of EMF "detectors" currently available for the iPhone 3GS only.

Does the Milestone/Droid series phones have the capability to detect EMF and if so does anyone know of a current app or one in development that will do this? I've searched the app store without finding a clear result.

Android :: Electro Magnetic Field app


Android :: Getting Magnetic Field Results As Degrees

Dec 12, 2009

I'm working on an application that will randomly point an arrow in a direction, and have that arrow maintain it's direction if the device is moved. All I want to do it get the magnetic field readings as degrees and I can do it from there. The problem I'm having is getting the magnetic field readings. I can't find any tutorials on it and the API demo on google's dev site uses deprecated code (figures, google's sample code is never n00b friendly).

At this point I've got this together but I don't know what I'm missing, all the examples I can find are using SensorListener which has onSensorChanged(int sensor, float[] values) but SensorEventListener does not support "float[] values"

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Android :: Difference Between Orientation Sensor / Magnetic Field Sensor

Nov 2, 2010

Does anyone know the difference between the orientation sensor and magnetic field sensor on Android?Since I've read that magnetometer is synonymous with digital compass I'm a little bit confused. What are they really?

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Android :: Will Magnetic Damage The Droid

Dec 16, 2009

I have noticed that the magnetic flap of my droid pouch has activated the phone every time I insert or pull the phone in/out of the pouch. Even though, the screen will shut off as it supposes to be, but I just wonder will the magnetic will affect, or damage the phone, such as the GPS feature.

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HTC Droid Eris :: Magnetic Mount

Dec 11, 2009

Has anyone used a magnetic mount like this?

HTC Droid Eris Phone Holder and Mount Cellular Accessory

Should I be worried about magnets messing up my phone, or is that just an old wives tale?

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Motorola Milestone :: Magnetic Triggers

Oct 3, 2010

I've looked around and have noticed a number of complaints, but I haven't found any solutions, so I beg of your advanced knowledge and expertise... would anyone be able to help me?

I own a motorola milestone, and I love it to pieces. However, I am finding that the leather case I have has a magnetic clasp which triggers the phone to enter into multimedia mode. This is very annoying, as I never plan to use this mode so I was wondering one of two things.

1. am I able to reassign the magnetic trigger from "open multimedia dock app" to "enter standby". Considering I just rooted the phone, i would imagine that I have the priveledges to do so, but I'm unaware of what level that control would be on and if I could manipulate it without bricking the phone.

2. am I able to completely remove this app? so that the magnetic trigger just does nothing?

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Samsung EPIC 4G :: Magnetic Lens

Sep 21, 2010

Has anyone used those magnetic macro or optical zoom lenses you can attach to the camera lens?

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Motorola Droid :: Magnetic Issues

Feb 18, 2010

I understand that one should not use a case with magnetic closure because it adversely affects the Moto Droid -I believe the concern is the GPS radio. When I first got the Droid I used an old Covertec Palm case, which has magnetic closure, to tide me over until I bought a new case. Did I fry the GPS radio? Google Maps cannot find my location and my SMobile security system cannot find me either. WeatherBug is on and off in knowing my location. Thoughts about magnets and Droid?

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Samsung Galaxy S :: Faulty Magnetic Sensor

Jul 9, 2010

I have both the Spica and the S side by side. When I tested their compasses, they're pointing in different directions.

I pressed *#0*#. There's nothing unusual on the Spica. The S' Magnetic Sensor Test Self Test says "PASS". However, under sensor, under MAGNETIC Sensor, it says "Need for calibration #". The # fluctuates from 0 to 3 (0, 1, 2, and 3). What does this mean? It says "Need for calibration" but I don't see any options to calibrate the magnetic sensor.

I've already tried the #8 motion in different axes & it didn't fix anything. Is this normal? Is the S supposed to say "Need for calibration" under the MAGNETIC Sensor section?

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Motorola Droid :: Wallet With Magnetic Clip

Dec 17, 2009

I may be purchasing a Droid soon. One thing that worries me a little is the GPS/Dock function that "activates" when you dock it in the media or car dock. From what I understand this triggers due to magnets that the Droid senses.

I use a leather money clip that holds like 10 cards then has a clip with a magnet in it to hold bills. (See picture).

My concern is that if I keep the Dtoid in my right pocket with my wallet it's going to activate and start draining the battery like crazy. As the phone would be too big to fit in the small "change" pocket on jeans that I used to use for my LG Voyager and previous phones it has me a little worried how I'm going to tote it around. I may buy one of those glasses cleaning clothes and wrap it in that, but the magnetic portion could still be an issue.

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HTC EVO 4G :: Anyone Buying Magnetic Macro Lens For Handset?

Jun 9, 2010

Review: Magnetic macro lens for HTC EVO 4G

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HTC EVO 4G :: Magnetic Holster Closter Causing Reboot?

Jun 22, 2010

Is it possible that the magnetic closure on the HTC leather holster is causing reboots on my EVO? I've wanted a leather holster since I got the EVO, but could find one I like and fit the phone. Yesterday, I decided to purchase the HTC holster from Sprint ($29.99). Since then, my phone as rebooted at least 6 times this morning - kinda annoying. It's not an app 'cause I haven't downloaded anything in days, so I figured that maybe the magnets (which are right there by the back of the phone) are interupting something.

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Motorola Droid :: Good Holster That Does Use Magnetic Clasp?

Mar 22, 2010

I originally purchased a holster off of ebay that was meant for an iPhone (seeing as they're about the same dimensions), but its clasp is magnetic and will randomly confuse the phone into thinking it's in car mode.I just got another case (this one) that has a velcro clasp and was marketed for the Droid. Well...it came in the mail today and my phone definitely doesn't fit in it.Has anyone found a decent holster that doesn't use a magnetic clasp? I found that verizon has one, has anyone tried it? I don't ever use the belt clip, so I'd like to get a case that the belt clip is removable.

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Motorola Droid :: Pictures - Magnetic Docks Work

Nov 9, 2009

So it's no secret that the super-special-awesome multimedia and car docks use magnetics to get you into that mode. But I got curious just now, so here is what happens when you put 1/4" cube neodymium magnets on certain spots on the device. If you already figured that this is how it works, good for you.

These pictures are terrible, yes. You can click on them to see them in their full-sized horror. I didn't make a point of being artistic here, I just want to show you what happens. And yes, that is a box of Sensodyne. It was on my bathroom vanity, which is the best-lit area of my house at nighttime.

This is where you want to put the magnet to activate the sensor.

But the polarity is the key to choosing which "dock" gets activated. I don't have a polarity indicator to tell me which pole is which, but suffice it to say that one pole activates multimedia, and the other activates car.

I tried this with 5mm diameter, 1mm thick neodymium disks, but they didn't work. That's the only other size I have besides 1" cubes which I'd be afraid to put by my phone though.

You may want to look into something like 5mm by 2mm or 10mm by 2mm or something. 1/4" cubes aren't very compact if you're looking to be thrifty and make your own dock. You could just slip a thin disk into your design and it'd be totally discreet. Hey, making your own dock or buying an el cheapo one and slipping in a 10 cent magnet sure beats buying a $30 one, doesn't it?

This also shows us that there may not be any more special docks to come, and if there will be, they won't be based on this technology. After all, both poles of the magnetic sensor have already been used.

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HTC Desire :: Magnetic Flip Case - Screen Damage

Jul 18, 2010

I have a HTC Desire and it fits nicely inside a flip case, held closed with a magnet. I am no scientist but a good friend of mine, who is a scientist, seems to think that a magnet could damage the phone!

I have heard that they can mess with the internal compas (i didnt even know i had one until yesterday) but what about the motor in the lens, will this be damaged being an electro magnetic motor?

I am most worried about the screen being effected by a magnetic field always being near (even on) it.

Has anyone had any experience of a HTC Desire being messed up with a magnet or can anyone reassure me that the 3 ebay phone case is phone friendly?

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General :: Magnetic Sensor In Stock Rom (Jelly Bean)

Aug 10, 2013

The magnetic sensor in my stock rom (JB) is deviated from the direction. and it is due to faulty sensor files in the stock rom. The sensor works perfect in old ICS version.

Calibration apps wont work because the problem lies in the sensor files itself

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General :: Magnetic And Orientation Sensors Not Working On MTK6577

Dec 6, 2012

How to make the following phone's magnetic and orientation sensor working? Both of these sensors are not working on my phone (verified by many apps such as Z-deviceTest, AndroSensor and Android Sensor Box).

Various applications have shown that this phone has 5 sensors :

- yamaha530 Orientation Sensor : 0.25 mA by Aichi Steel
- yamaha530 3-axis Magnetic Field Sensor :0.25 mA by Aichi Steel
- bma222 3-axis Accelerometer : 0.13 mA by The Android Open Source Project
- tmd2771 Proximity Sensor : 0.13 mA by Capella
- tmd2771 Light Sensor : 0.13 mA by Capella

Phone name : Clone Samsung Galaxy III S9300
Manufacturer : alps
Model: e1901_v77_jbl1_9p017
CPU: MTK6577 Dual Core 1.0GHz
Android version : 4.1.1
Baseband version : MAUI.11AMD.W12.22.SP.V15,2012/10/08 20:09
Kernel version : 3.4.0 (root @ abc-desktop) #1 SMP PREEMPT Mon Nov 12 18:32:14 CST 2012
Build Number : e1901_v77_jbl1_9p017_20121105

Perhaps there is new ROM or kernal that can handle the sensors better?

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Jelly Bean :: How To Activate And Calibrate Magnetic Sensor On Samsung

May 20, 2014

how to activate and calibrate magnetic sensor on Samsung galaxy s3 I9300 the magnetic sensor is working finely on my friend's s4 with the magnetic cover but when i use that magnetic cover nothing happens. the screen doesn't goes off and on with it.. i can't understand bcz both phones show magnetic sensor in the sensors test..

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Android :: How To Add New Field To Contact?

Apr 28, 2010

I want to add a Custom field to the Contacts Contract content provider. I'm trying to build a Voip application and would like to add a SIP address(name@domain) field to it. What MIME type will I need to associate with it? Also I want to add a group address field which will have a list of group addresses in it (name@domain, name@domain Which MIME type will I have to associate with this type of field. I also want to add custom fields to the Call History like a session ID and SIP address(name@domain) field. How can I customize the call history?

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Android :: Sdk - Field Of Useage ?

Jul 29, 2010

Before I start to develop an application I really want to know that we can only use android Sdk on Android phones or can we use the android Sdk to develop other things like iPad, iPhone also etc?

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Android :: Cursor - Get The Field Value

May 24, 2009

I have problems with Cursor in my Android application.

I have a SQLiteDatabase that return me Cursor when I try to fetch the values with :

code:.......

But I don't know how to obtain the value of the field in the Cursor.

If I do that :

code:........

I obtain the name of the columns (_id, title, body) but not the value.

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Android :: Id Cannot Be Resolved Or Not Field If Don't Import R

Jul 22, 2010

If I don't import R, I get "id cannot be resolved or is not a field" (R.id.mainanim); And if I import R, the id error is gone, but I get "main and mainanim cannot be resolved or is not a field". They're my xml files! Also here is ALL my code... maybe there is an error I didn't see?

JAVA:.................

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Android :: Transparent Text Field

Apr 25, 2010

Is there any way to create a transparent text field?

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Android :: Got EditText Field From XML / App Crashes

Mar 23, 2010

I have an activity in my app, when i call the line
EditText username = (EditText)findViewById(R.id.usernameText); the app crashes, why is this?

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Android :: Want To Display Listview With Key Field?

Aug 16, 2010

I want to display a listview when clicked be able to get the items key value. How would I go about that.

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Android :: Way To Add New Field In Contacts On Droid API 2.1?

Aug 4, 2010

I am new to android , I hope so u guys will help me to obtain my requirement. I am using an Android API Level 2.1 I need to create a new field such as user@domain not as e-mail format for every contacts. So i need to create a new MIME type now i got struck how to create this MIME type.

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Android :: EditText Field Not Update?

Sep 1, 2010

I have an EditText field and a button. My aim is to let user enter text info to the EditText or click the button to launch a dialog to select some checkbox and radio button which it will perform some computation and return a value to display at the EditText field.

I can't seems to get the value to display at the EditText field after the dialog dismiss. I did try a toast to display the value and it is ok. I *think* the view was not refresh to display the text in the EditText field.

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Android :: Use Long Field In Sqlite

May 6, 2009

I want to store long value in database ( current time millis), how to store it.

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Android :: DDMS - ? - In Process Name Field

Mar 12, 2010

When i am running DDMS tool to profile the application, In left pane of the DDMS tool we are able to see all the emulators that are attached to DDMS. When i expand one of the emulator some times i am getting "?" in process names.

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Android :: Reflection For A Field Going Wrong

Jun 1, 2010

I have been trying to use reflection for a specifiec Field in the android.os.build class, the MANUFACTURER field...

I have tried by using this code :.............

I am gettign the following errors :

code:..........

And when debugging I noticed that InvocationtargetException is continuesly thrown, so I am guessing I haven't been implementing the whole Reflection principle correctly...

Any idea where things are going wrong or otherwise on how to implement Refelction for a single Field correctly ?

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