Here's the code:
package com.android.DidYuKnow;
import java.util.Random;
import android.app.Activity;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.widget.TextView;
[URL]
The problem is that nothing appears in my textview after shaking the phone.
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I need to create a random character generator that return a single character. The character should range within the letters of the alphabet, numbers 0 through 9, and some characters like.
View 3 Replies View RelatedI am developing a game. In which the user controls movement using the accelerometer. Sounds effects can also be enabled. However when laying the phone flat down and playing the game without the accelerometer gives nice 0,0,0 values. However when play WITH SOUNDS on, i get a buch of weird values: while the phone is NOT moving.
This is really a big bug that makes life hard for Game Developers. I tried to take an avarge of the last 5 values from the sensor.. but this is not enough.. The harder the sounds plays: the higher the weird sensor values. When using the headphones: almost no weird values. Seems that sounds interferes with the accelerometer sensor.
I would like to generate a stub for android. Only one tool is available at "http://ksoap2genstub.sourceforge.net" but i am facing issues with it. java.rmi.remote is not available in android, but this tool generates a class with that. Is anyone know any other reliable tool or a solution of such issues.
View 3 Replies View RelatedI was trying to search for an android app that can generate network traffic (UDP) for stress testing a network.
View 2 Replies View RelatedThank to previous replies, and with a major inspiration from http://insanitydesign.com/wp/projects/nehe-android-ports/ , i started to build a simple Tile Generator for my simple 2D zelda-like game project.I can now generate a map with the same textured tile, using 2 for(..) imbricated iterations to draw horizontal and vertical tiles, and got some basic DPAD key input listeners to scroll over the x and y axis.but now im running into my first performance problems, just with one texture and one model.When trying to build a 10x10 map, scrolling is fine and smooth.When trying with 50x50, things get worse, and with a 100x100, its way unacceptable.Is there a way only to tell OpenGL to render the 'visible' part of my mapset and ignore the hidden tiles? im a totally new to this.
View 2 Replies View RelatedI've had my Incredible since 4/28, and everything has been working smoothly up until about last Thursday night when it just restarted out of the blue while I was listening to music. Then right after it booted up, it restarted again, then again about seven more times. I got fed up and took out the SD card and it seemed to stop after that, so I haven't put the SD card back in since then.
Just now, Wednesday, about a week later, I was browsing around on the internet and all of a sudden, it restarted, and then again, and again, and again. I've read that it is because of poor signal strength or something like that so I had just enough time to put it in airplane mode before it restarted again.
Side note, that theory about it being caused by poor signal seems to make sense because the first time it happened to me I was out of town in a city that gets very bad coverage with Verizon, and now today when it started happening again was at my house where for some reason I get very bad service with the incredible, my old phone worked perfectly fine in my house but the incredible gets terrible service, and so does my brother's Droid. In fact, about two weeks ago I got my first dropped call on Verizon in about three years, and it was in my house.
So anyways, I decided to put it in airplane mode, and just after I put it in airplane mode it restarted again. Then when it booted back up my Helix Launcher 2 home screen went back to the standard Helix Launcher 2 icons, I go into my messages and everything is gone, my contacts are all gone, everything is gone. I go to the app menu and all my apps are still there, but when I start up an app, all the custom settings are default now. I went into the settings and my accounts are all still there. I click on internet and I get a terms of service agreement, it's as if I am booting it up for the first time, but for some reason my apps and accounts are all still there.
I turn airplane mode off thinking it might have something to do with it not being connected to my google account, and I restart it again and everything is still gone. I don't know what to do, has this happened to anyone before? I feel like there should be a way for me to get this stuff back since my apps are still there and my accounts are still synced, but random things are missing like my contacts and messages etc. This is really starting to get annoying, I have insurance and everything, but I really don't want to exchange it for another one because I've read that other people who have had there phones replaced have still had the same rebooting problem, even after going through multiple replacements.
Is there any class generators to process web services in Android/Java? I may have to write my own to generate classes against WSDL but I'm trying not to. Also is there one for REST services as well?
If not providing me with discovery service suggestions like disco/wsdl are good enough.
I noticed this same issue with my HTC Hero, and then it seemed to go away. Now I've noticed it again.
The issue is this: I have around 2700 songs on my SD card, all in a folder called Music, and they are arranged, quite logically, by artist and album under that. Unfortunately, when I put the music application on random, it seems to get stuck on 4 or 5 artists (and sometimes within those artists, one particular album) and play those almost exclusively, with only an occasional diversion to some other artist. At one point it was so bad that a. it played one particular song 6 times in a 4 hour period, and b. I got so tired of one of my artists, I deleted it entirely!
So, is this a bug with the built in music player? Is it because of the amount of music I have? Is it because of where my music is stored? Has anyone else had this problem? (Or does Android OS just have an affinity for The Byrds? )
Are there any other music apps I can try? I tried Simply Music, and it did work much better on the randomization, but it hung for a few seconds several times (for no discernable reason) and it is very slow to load.
How to do something when the user shakes the phone ?
I need to know how to get the input from the accelerometer..?
my problem is this, i have my main class and a second class that displays the values of the accelerometer on a textview.. however if i call my accelerometer class this is what happens, my application starts with no problems however no buttons work from my main class.. it seems to me that the accelerometer class runs above my main class thats why i have this problem.. what i did is i created a new activity on my manifest and called my accelerometer class from my main class using->
Intent i = new Intent(this, AccelerometerClass.class);
startActivity(i);
Maybe there is a way to just take the values from the accelerometer class,wihout calling the class itself ???? what i mean is take the x,y,z(int) values from accelerometer class and set them on a text from the main class..
I'm designing a game for Android and I would like to use the accelerometer for some aspects of control. Has anyone come across a tutorial or example for something like this?
View 1 Replies View RelatedMy accelerometer is not reading the angle of the phone right. When I play Teeter I have to keep the phone on a sharpe angle to keep the ball still, and I feel I have to rotate it extra to go into landscape mode. Now the question is... how do I readjust the accelerometer?
View 6 Replies View RelatedWhere can I find a simple example application that uses the Accelerometer Sensor?
I've seen the Open Intents applications, but I'd rather use the raw Android API, at least until I understand it a little better. I'm surprised at the lack of documentation.
I want to know how to calculate the accelerometer movement.When i place the mobile horizontally in idle state and similarly when i place the mobile in hands,So there accelerometer value change when it is place horizontally or while it is in hand vertically.How To Identify them,Any Sample Codes will be useful.
View 1 Replies View RelatedI'm working on adding a calibration feature to an accelerometer-driven game. For the calibration, I need a single value from the accelerometer. Should I register a listener, get the first value it gives me, and unregister it, or is there a better way to get just one value?
View 2 Replies View RelatedI've been playing with the data given by the accelerometer,trying to work out how I can gauge a shake from front to back or side to side. This all seems straightforward enough.But I'd love to know the direction of the shake. So, if the user is shaking backwards and forwards, I want to know if the device is moving away from the user, or back towards him/her. I can't find any way of telling this.
View 6 Replies View RelatedI have just got a Android 2.1 enabled device. I am looking out for the Best 3D Car Racing Game which works on Motion Accelerometer. Of course a free version is what I am looking out for.
View 5 Replies View RelatedIf it could turn to the right as opposed to the left, typing on the landscape keyboard would be much easier. The botton of the phone would not get in the way. Just wondering.
View 1 Replies View RelatedI'm tinkering around with trying to build a speedometer using only the accelerometer for use when I go snowboarding. I can read values from the accelerometer but I'm not sure how I would derive the velocity. I was thinking of taking the square root of (X^2 + Y^2 + Z^2) where X, Y, and Z are the values reported by the accelerometer in each axis but that only would only give me the amplitude of acceleration at any given instant. I could multiple that by the sampling frequency to get my instantaneous velocity but this approach fails when I'm moving at a constant speed.
View 2 Replies View RelatedI wanted to get the frequency of accelerometer output. How many readings can I get per second? And to what precision do I get?
View 5 Replies View RelatedI know this question is definitely solved somewhere many times already, please enlighten me if you know of their existence,
Quick rundown:
I want to compute from a 3 axis accelerometer the gravity component on each of these 3 axes.
I have used 2 axes free body diagrams to work out the accelerometer's gravity component in the world X-Z, Y-Z and X-Y axes. But the solution seems slightly off, it's acceptable for extreme cases when only 1 accelerometer axis is exposed to gravity, but for a pitch and roll of both 45 degrees, the combined total magnitude is greater than gravity (obtained by Xa^2+Ya^2+Za^2=g^2; Xa, Ya and Za are accelerometer readings in its X, Y and Z axis).
More detail:
The device is a Nexus One, and have a magnetic field sensor for azimuth, pitch and roll in addition to the 3-axis accelerometer.In the world's axis (with Z in the same direction as gravity, and either X or Y points to the north pole, don't think this matters much?), I assumed my device has a pitch (P) on the Y-Z axis, and a roll (R) on the X-Z axis. With that I used simple trig to get:
Sin(R)=Ax/Gxz
Cos(R)=Az/Gxz
Tan(R)=Ax/Az
There is another set for pitch, P.Now I defined gravity to have 3 components in the world's axis, a Gxz that is measurable only in the X-Z axis, a Gyz for Y-Z, and a Gxy for X-Y axis.Gxz^2+Gyz^2+Gxy^2=2*G^2 the 2G is because gravity is effectively included twice in this definition. Oh and the X-Y axis produce something more exotic I'll explain if required later.From these equations I obtained a formula for Az, and removed the tan operations because I don't know how to handle tan90 calculations (it's infinity?).So my question is, anyone know whether I did this right/wrong or able to point me to the right direction?
I have a code snippet to detect accelerometer movements. It works some times by properly detecting slight movements, but sometimes it detects movements when I kept my device idle too. Are there any problems with built-in accelerometer detection on Android?
I use an HTC G-1 device. My code snippet is below. How do I resolve it so I can detect small device movements but not detect anything when the device is idle?
CODE:..............
i dont have an android phone write now.But in my application i need to use accelerometer values..so i need an a simulator capable of it.
View 2 Replies View RelatedWe are writing an application that uses acceleration sensor data to plot phone's movement in 3D. We are finding gross inconsistencies in the actual data output by the sensor. Also, sampling rates vary greatly from 8 to 200 millis. (using System.currentTimeMillis())
Specifically, when we try to draw a circle with G1 flat on the table all the time (filtering out gravity accel 9.8), most of the time we would get a plot of phone's position that is not a circle at all. Lots of times, it would be close to a straight line. Sometimes, it would start drawing an arc, but would not close the circle shooting off in a random direction.
We tried to eliminate the time variable, by substituting a constant time sampling rate (10 millis) to calculate phones position, but the result was very close to what we had before (shapewise). Also, the acceleration in Z direction when the phone is displaced lying flat on a table (XY plane) varies too by +/- 2 units which is a lot.
I do not think it is an error in our code, as we have checked it many times. If there were an error indeed and the accelerometer worked properly, we would see a consistently wrong depiction of the phone's movement. Unfortunately, repeating the same movement (circle) would produce sometimes wildly differently shaped plots.
It all comes down to us wanting to know if that is indeed the case that the G1 accelerometer is very unreliable and inconsistent device when used for more or less precise measurements? Is there some documentation/facts paper that would tell us just how reliable accelerometer is?
To be able to do some accurate calculations that I want for my app, I need to be able to get an accelerometer reading every 100ms. I haven't found a way to do this on android, it seems like the only way to get accelerometer readings is to put a listener that can listen at different intervals. Basically, is there a way to get a reading at exact intervals?
View 2 Replies View RelatedI am looking to root my brothers phone to fix the lag issue...I have a couple questions though first...
His GPS is off by almost 30+ feet...it never comes in closer (My Droid X will go in to almost 5 feet or less.). I don't know a LOT about the Vibrants root/lag fix...
Also his accelerometer is off by about 7 degrees (through Android Sensor Data app).
So my question is...does the lag fix have any form of fix for the radios/accelerometer sensors in there as well? Also do you have the stock sbf in case the phone does need to go back in to return it to stock?
It seems trivial to use GPS in a background service, but how can you do the same with the accelerometer? Everything I've tried seems to require a context, but a background service doesn't have a context?
View 5 Replies View RelatedI am recently doing a graduate research on the accelerometer in mobile devices. Accelerometer is a MEMs device built in almost every smart phone nowadays. I am interested in finding what information does the hardware accelerometer report that the software knows the raw values X, Y, Z to detect the orientation in which the phone is held?
View 1 Replies View Relatedthe remapCoordinateSystem method remaps the axis for sensor readings, but I want to remap the coordinate system to any angle, for example: new coordinate system is say relative to earth's coordinate system, 20 degrees clockwise to earth's X axis, and 10 degrees to earth's Y axis, while Z is derived from X and Y axis.
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