2014/10/15 下午 10:13:09

iphone Programming Glossary: readings

GMail won't open .txt attachment created by iPhone App, Depending on Size - I think There's a Bug in my MIME

http://stackoverflow.com/questions/1114815/gmail-wont-open-txt-attachment-created-by-iphone-app-depending-on-size-i-th

NSDictionary dictionaryWithObjectsAndKeys @ text plain kSKPSMTPPartContentTypeKey @ Hey Kevin nHere are some GPS readings for you to filter. n nLove nTrailBehind kSKPSMTPPartMessageKey @ 8bit kSKPSMTPPartContentTransferEncodingKey nil NSData.. NSDictionary attached NSDictionary dictionaryWithObjectsAndKeys @ text directory r n tx unix mode 0644 r n tname readings.txt kSKPSMTPPartContentTypeKey @ attachment r n tfilename readings.txt kSKPSMTPPartContentDispositionKey fileData encodeBase64ForData.. @ text directory r n tx unix mode 0644 r n tname readings.txt kSKPSMTPPartContentTypeKey @ attachment r n tfilename readings.txt kSKPSMTPPartContentDispositionKey fileData encodeBase64ForData kSKPSMTPPartMessageKey @ base64 kSKPSMTPPartContentTransferEncodingKey..

Use Quaternions to compute yaw, pitch and roll from iphone?

http://stackoverflow.com/questions/12322797/use-quaternions-to-compute-yaw-pitch-and-roll-from-iphone

questions and articles mentioning that Quaternions can be used to derive better accurate and stable yaw pitch and roll readings from the iPhone rather than reading it's direct yaw pitch and roll readings. But at the same time I haven't seen any proper.. accurate and stable yaw pitch and roll readings from the iPhone rather than reading it's direct yaw pitch and roll readings. But at the same time I haven't seen any proper methods of implementing Quaternions in iPhone platform. As a beginner It's..

Drifting yaw angle after moving fast

http://stackoverflow.com/questions/13613239/drifting-yaw-angle-after-moving-fast

1.828088 variance 0.002644 0.004651 0.002527 temperature 31.554688 My question s Is there chance to block magnetometer readings when using Device Motion I tried deactivating location services but it doesn't affect Core Motion. If not possible what..

Detecting Acceleration in a car (iPhone Accelerometer)

http://stackoverflow.com/questions/2733249/detecting-acceleration-in-a-car-iphone-accelerometer

Otherwise there are multiple configurations of an accelerating car on a hill that can give rise to exactly the same readings on an accelerometer. They will be completely impossible to distinguish. That's why inertial navigation systems combine a..

decoding the CLLocationAccuracy const's

http://stackoverflow.com/questions/3411629/decoding-the-cllocationaccuracy-consts

the system will need to use more power hungry radios. For example the GPS will be required for the most detailed readings inside 100 Meters and it uses the most power. Here is an educated guess at the mechanism used to determine the accuracy...

Convert GPS coordinates to coordinate plane

http://stackoverflow.com/questions/3588653/convert-gps-coordinates-to-coordinate-plane

got me to this point now I'm stuck on the math. Let's say I have a floor plan of a building I've taken gps coordinate readings from each corner of the building. Also assume that the floor plan is lined up with the latitude and longitude. How do I..

iPhone - understanding iPhone rotation

http://stackoverflow.com/questions/5170010/iphone-understanding-iphone-rotation

to understand this. See the next picture. Suppose I have an iPhone resting on a table. At this time the rotation readings thru core motion are 0 0 0 for yaw roll and pitch picture A . Then I roll it 90 degrees. Now it is sitting on the table..

iPhone/iPad data usage tracking

http://stackoverflow.com/questions/5274805/iphone-ipad-data-usage-tracking

quick question. Out of curiosity would anyone have an idea how the iPhone App DataMan and Data Usage are pulling data readings of your personal cellular data usage I've check the web high and low for possible answers and all so far has been dead ends...

Multiple Views within one XIB - iPhone SDK

http://stackoverflow.com/questions/765521/multiple-views-within-one-xib-iphone-sdk

I figure that there has to be a very specific reason that I've never seen this. In Apple's examples and in all of my readings thus far multiple XIBs are used with only a single 'view' and sometimes the Navigation Controller or a Tab Bar Controller..

Detecting blowing on the iPhone microphone?

http://stackoverflow.com/questions/795968/detecting-blowing-on-the-iphone-microphone

the power signal first. There is always going to be some amount of transient noise that will mess with instantaneous readings low pass filtering helps mitigate that. A nice and easy low pass filter would be something like this Make this a global..

NSTimer Reliable Alternatives

http://stackoverflow.com/questions/8172473/nstimer-reliable-alternatives

transitions screens or almost anything else really it slows down the timer a little bit making for inaccurate readings. What is a reliable alternative to use My current code is as follows timer NSTimer scheduledTimerWithTimeInterval 1.0 target..

Detect iPhone screen orientation

http://stackoverflow.com/questions/999686/detect-iphone-screen-orientation

of the screen when orientation changes. I have something coded up but really don't understand how the accelerometer readings work and could use a nudge in the right direction. My current code logs the current angle but even when the phone is flat.. could use a nudge in the right direction. My current code logs the current angle but even when the phone is flat I get readings varying wildly a few times a second. void checkOrientation UIAccelerometer accelerometer didAccelerate UIAcceleration acceleration..