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2014/10/16 ¤W¤È 08:12:54
android Programming Glossary: earthActionBarSherlock + Maps + Loaders = java.lang.NoClassDefFoundError http://stackoverflow.com/questions/10037125/actionbarsherlock-maps-loaders-java-lang-noclassdeffounderror too but this way I'm not able to use LoaderManager Why on earth the NoClassDefFoundError error and how to get the Loaders working..
Augmented reality - Image size transform http://stackoverflow.com/questions/11387535/augmented-reality-image-size-transform the same lines I could have a 100px by 100px picture of earth but I would hope that doesn't show up as tiny. Solving for the..
How can I get the magnetic field vector, independent of the device rotation? http://stackoverflow.com/questions/11772923/how-can-i-get-the-magnetic-field-vector-independent-of-the-device-rotation like R m . This vector will point through the earth to the magnetic north pole. If you also multiply it with inclination.. This vector should be constant for each position on the earth. However results on your mobile phone may show slight deviations..
Convert magnetic field X, Y, Z values from device into global reference frame http://stackoverflow.com/questions/15315129/convert-magnetic-field-x-y-z-values-from-device-into-global-reference-frame acceleration of the device and the magnetic field of the earth at the device location respectively. They are vectors in 3 dimentional.. little if you move around since the magnetic field of the earth should change little in a short distance . But a does change..
How to calculate distance from different markers in a map and then pick up the least one http://stackoverflow.com/questions/19218081/how-to-calculate-distance-from-different-markers-in-a-map-and-then-pick-up-the-l i.e. remove the multiplication by the radius of the earth . Filtering algorithm looping through each location Calculate..
Android: BitmapFactory.decodeByteArray gives pixelated bitmap http://stackoverflow.com/questions/2183808/android-bitmapfactory-decodebytearray-gives-pixelated-bitmap than on my phone a HTC Hero there is no pixelation. How on earth is this possible Below is the code I use for loading a bitmap..
How to use TabHost.OnTabChangeListener in android? http://stackoverflow.com/questions/2243360/how-to-use-tabhost-ontabchangelistener-in-android String tabId if TAB_1_TAG.equals tabId destroy earth if TAB_2_TAG.equals tabId destroy mars Where TAB_1_TAG is the..
http://stackoverflow.com/questions/2317428/android-i-want-to-shake-it we are on planet Earth and initializes the acceleration to earth gravity. Otherwise you would get a strong shake when the application..
Set margins in a LinearLayout programmatically http://stackoverflow.com/questions/2481455/set-margins-in-a-linearlayout-programmatically buttonsView lp So that works fine but how on earth do you give the buttons margins so there is space between them..
Silent installation on Android devices http://stackoverflow.com/questions/3438637/silent-installation-on-android-devices fast web installer and it does exactly this. How on earth is this possible D android install apk share improve this..
NoClassDefFoundError when trying to unit test JSON parsing in Android http://stackoverflow.com/questions/3951274/noclassdeffounderror-when-trying-to-unit-test-json-parsing-in-android android.os class NoClassDefFoundError not sure why on earth I didn't find this one when I initially wrote my question I..
Android - reference a string in a string array resource with xml http://stackoverflow.com/questions/4161256/android-reference-a-string-in-a-string-array-resource-with-xml of the array. For example in your strings.xml string name earth Earth string string name moon Moon string string array name.. moon Moon string string array name system item @string earth item item @string moon item string array By using this you can.. moon item string array By using this you can use @string earth and @string moon normally in your android text and android title..
Android question: implementing a rich text editor? http://stackoverflow.com/questions/4283755/android-question-implementing-a-rich-text-editor not provide much useful information about them. So how on earth can I implement a rich text editor on Android Can I extends..
Calculate compass bearing / heading to location in Android http://stackoverflow.com/questions/4308262/calculate-compass-bearing-heading-to-location-in-android This difference is variable depending where you are on earth. You can obtain by using GeomagneticField class. GeomagneticField..
Android: How do I set the zoom level of map view to 1 km radius around my current location? http://stackoverflow.com/questions/6002563/android-how-do-i-set-the-zoom-level-of-map-view-to-1-km-radius-around-my-curren figure out how The doc says that the zoom level 1 will map earths equator to 256 pixels. So how do I calculate which zoom level.. zoom level 1 which according to google shows equator of earth using 256 pixels. Now every subsequent zoom level magnifies.. level doubles the number of pixels needed to represent earths equator the following function returns the zoom level where..
Market Licensing Example always getting LICENSED http://stackoverflow.com/questions/6365118/market-licensing-example-always-getting-licensed only exists as a draft . OK so the question now is How on earth am I supposed to learn what I need to learn from the Market..
Android getOrientation() method returns bad results http://stackoverflow.com/questions/10192057/android-getorientation-method-returns-bad-results to the sky minus Z axis on the picture sphere is the Earth getOrientation starts giving really bad results. It gives values..
How to get the rotation between accelerometer's axis and motion vector? http://stackoverflow.com/questions/10207044/how-to-get-the-rotation-between-accelerometers-axis-and-motion-vector direction Device Referential or accelerometer referential Earth Referential and i'm searching the way to find the rotation matrix..
PopupWindow not triggering sytem context dialog on EditText long-press http://stackoverflow.com/questions/13248581/popupwindow-not-triggering-sytem-context-dialog-on-edittext-long-press an OnLongPressListener or will I have to move Heaven and Earth to implement it myself Because if that's the case I'll just..
J2ME/Android/BlackBerry - driving directions, route between two locations http://stackoverflow.com/questions/2023669/j2me-android-blackberry-driving-directions-route-between-two-locations Google Maps APIs Terms of Service Google Maps Google Earth APIs Terms of Service Last updated May 27 2009 ... 10. License..
http://stackoverflow.com/questions/2317428/android-i-want-to-shake-it resources CPU Battery . The code assumes we are on planet Earth and initializes the acceleration to earth gravity. Otherwise..
Open local KML File in Google Maps on Android http://stackoverflow.com/questions/2931281/open-local-kml-file-in-google-maps-on-android
How to change 1 meter to pixel distance? http://stackoverflow.com/questions/3385117/how-to-change-1-meter-to-pixel-distance so while a meter is a very small distance compared to the Earth radius latitude is important. All the examples below are javascript.. draw a circle Pseudo code var d radius 6378800 6378800 is Earth radius in meters var lat1 PI 180 centerLat var lng1 PI 180 centerLng.. draw a circle of a given radius on the surface of the Earth http maps.forum.nu gm_sensitive_circle2.html http maps.forum.nu..
How is it possible to create a spinner with images instead of text? http://stackoverflow.com/questions/3609231/how-is-it-possible-to-create-a-spinner-with-images-instead-of-text array name planets item Mercury item item Venus item item Earth item item Mars item item Jupiter item item Saturn item item..
Android - reference a string in a string array resource with xml http://stackoverflow.com/questions/4161256/android-reference-a-string-in-a-string-array-resource-with-xml array. For example in your strings.xml string name earth Earth string string name moon Moon string string array name system..
How to calculate distance based on phone acceleration http://stackoverflow.com/questions/4329164/how-to-calculate-distance-based-on-phone-acceleration get distance. The big problem with this is that on planet Earth there is a constant acceleration downwards of approximately..
How to change spinner background image? http://stackoverflow.com/questions/5829295/how-to-change-spinner-background-image file if the four values of your spinner is Mercury Venus Earth Mars then in the Onselected itemlistener put code like this.. parent.getItemAtPosition pos .toString .equalsIgnoreCase Earth ll1.setBackgroundResource R.drawable.javaandroid if parent.getItemAtPosition..
Android: How do I set the zoom level of map view to 1 km radius around my current location? http://stackoverflow.com/questions/6002563/android-how-do-i-set-the-zoom-level-of-map-view-to-1-km-radius-around-my-curren width and the fact that at zoom level 1 the equator of Earth is 256 pixels long and every subsequent zoom level doubles the..
android device angle to vertical axis http://stackoverflow.com/questions/7261732/android-device-angle-to-vertical-axis the vertical axis the axis pointing to the center of the Earth . So far all the documentations and tutorials I found were not..
How to create map tiles from OpenStreetMap offline, display it on Android? http://stackoverflow.com/questions/7625620/how-to-create-map-tiles-from-openstreetmap-offline-display-it-on-android and rename the top level folder from something like Google Earth depending on the map source you used to Mapnik in order for..
http://stackoverflow.com/questions/7677674/use-of-ntp-service app that needs to control real time in any location on the Earth and do something when time comes. At the same time not to rely..
How to read and edit Android calendar events using the new Android 4.0 Ice Cream Sandwich API? http://stackoverflow.com/questions/7859005/how-to-read-and-edit-android-calendar-events-using-the-new-android-4-0-ice-cream to do something awesome. .putExtra Events.EVENT_LOCATION Earth .putExtra Events.RRULE FREQ DAILY COUNT 10 .putExtra Events.AVAILABILITY..
Android how to identify item in listview with checkbox http://stackoverflow.com/questions/9444165/android-how-to-identify-item-in-listview-with-checkbox on the 3rd checkbox I want to now it is in the row of Earth. Best would be if I get to know both the text of textview in.. know both the text of textview in the row of the listview Earth and and number of the item 3 . I guess I have to set an onClickListener..
ActionBarSherlock + Maps + Loaders = java.lang.NoClassDefFoundError http://stackoverflow.com/questions/10037125/actionbarsherlock-maps-loaders-java-lang-noclassdeffounderror implements LoaderCallbacks ArrayList EventItem part it works too but this way I'm not able to use LoaderManager Why on earth the NoClassDefFoundError error and how to get the Loaders working in my MapCapableSherlockEnabledFragmentActivity android..
Augmented reality - Image size transform http://stackoverflow.com/questions/11387535/augmented-reality-image-size-transform assumption of its size was from the total pixel count. Along the same lines I could have a 100px by 100px picture of earth but I would hope that doesn't show up as tiny. Solving for the size of the object will yield results allowing for a user..
How can I get the magnetic field vector, independent of the device rotation? http://stackoverflow.com/questions/11772923/how-can-i-get-the-magnetic-field-vector-independent-of-the-device-rotation vector m with the rotation matrix R retrieved from getRotationMatrix like R m . This vector will point through the earth to the magnetic north pole. If you also multiply it with inclination I the vector would be rotated around the X axis to.. Y axis 0 m 0 I R geomagnetic m magnitude of geomagnetic field This vector should be constant for each position on the earth. However results on your mobile phone may show slight deviations because you have to be very careful not to change the position..
Convert magnetic field X, Y, Z values from device into global reference frame http://stackoverflow.com/questions/15315129/convert-magnetic-field-x-y-z-values-from-device-into-global-reference-frame The accelerometer and magnetic field sensors measure the acceleration of the device and the magnetic field of the earth at the device location respectively. They are vectors in 3 dimentional space let call them a and m respectively. If you.. from surrounding objects actually m should change little if you move around since the magnetic field of the earth should change little in a short distance . But a does change even though it should not be drastic in most situation. Now..
How to calculate distance from different markers in a map and then pick up the least one http://stackoverflow.com/questions/19218081/how-to-calculate-distance-from-different-markers-in-a-map-and-then-pick-up-the-l formula to speed it up as you don't care about actual distances i.e. remove the multiplication by the radius of the earth . Filtering algorithm looping through each location Calculate the difference in lat and long. If both differences are larger..
Android: BitmapFactory.decodeByteArray gives pixelated bitmap http://stackoverflow.com/questions/2183808/android-bitmapfactory-decodebytearray-gives-pixelated-bitmap stranger when I run the same app in the simulator rather than on my phone a HTC Hero there is no pixelation. How on earth is this possible Below is the code I use for loading a bitmap from a URL it is based on the Photostream app by Romain Guy..
How to use TabHost.OnTabChangeListener in android? http://stackoverflow.com/questions/2243360/how-to-use-tabhost-ontabchangelistener-in-android new OnTabChangeListener @Override public void onTabChanged String tabId if TAB_1_TAG.equals tabId destroy earth if TAB_2_TAG.equals tabId destroy mars Where TAB_1_TAG is the tag provided to the newTabSpec method when creating the tab...
http://stackoverflow.com/questions/2317428/android-i-want-to-shake-it onResume to save resources CPU Battery . The code assumes we are on planet Earth and initializes the acceleration to earth gravity. Otherwise you would get a strong shake when the application starts and hits the ground from free fall. However..
Set margins in a LinearLayout programmatically http://stackoverflow.com/questions/2481455/set-margins-in-a-linearlayout-programmatically ViewGroup.LayoutParams.FILL_PARENT setContentView buttonsView lp So that works fine but how on earth do you give the buttons margins so there is space between them I tried using LinearLayout.MarginLayoutParams but that has..
Silent installation on Android devices http://stackoverflow.com/questions/3438637/silent-installation-on-android-devices installer activity. But now I've picked up a copy of the Appbrain fast web installer and it does exactly this. How on earth is this possible D android install apk share improve this question I think the clue is pretty much in this statement..
NoClassDefFoundError when trying to unit test JSON parsing in Android http://stackoverflow.com/questions/3951274/noclassdeffounderror-when-trying-to-unit-test-json-parsing-in-android project AndroidTesting Eclipse Android JUnit test references android.os class NoClassDefFoundError not sure why on earth I didn't find this one when I initially wrote my question I must have been completely lost... And there are plenty more..
Android - reference a string in a string array resource with xml http://stackoverflow.com/questions/4161256/android-reference-a-string-in-a-string-array-resource-with-xml by addressing independent strings INSIDE the definition of the array. For example in your strings.xml string name earth Earth string string name moon Moon string string array name system item @string earth item item @string moon item string.. in your strings.xml string name earth Earth string string name moon Moon string string array name system item @string earth item item @string moon item string array By using this you can use @string earth and @string moon normally in your android.. string array name system item @string earth item item @string moon item string array By using this you can use @string earth and @string moon normally in your android text and android title XML fields and yet you won't lose the ability to use the..
Android question: implementing a rich text editor? http://stackoverflow.com/questions/4283755/android-question-implementing-a-rich-text-editor can be any help... And the http developer.android.com does not provide much useful information about them. So how on earth can I implement a rich text editor on Android Can I extends the EditText and add my new functionalities Or should I do something..
Calculate compass bearing / heading to location in Android http://stackoverflow.com/questions/4308262/calculate-compass-bearing-heading-to-location-in-android difference between north and magnetic north for your location. This difference is variable depending where you are on earth. You can obtain by using GeomagneticField class. GeomagneticField geoField private final LocationListener locationListener..
Android: How do I set the zoom level of map view to 1 km radius around my current location? http://stackoverflow.com/questions/6002563/android-how-do-i-set-the-zoom-level-of-map-view-to-1-km-radius-around-my-curren I want to set the map view zoomed to 1km radius but cant figure out how The doc says that the zoom level 1 will map earths equator to 256 pixels. So how do I calculate which zoom level I need to set so that the map view shows area in 1KM radius.. The idea is that first I calculate Meters per pixel in the zoom level 1 which according to google shows equator of earth using 256 pixels. Now every subsequent zoom level magnifies by a level of 2 so I half the meters per pixel for every zoom.. equator of Earth is 256 pixels long and every subsequent zoom level doubles the number of pixels needed to represent earths equator the following function returns the zoom level where the screen will show an area of 2Km width. private int calculateZoomLevel..
Market Licensing Example always getting LICENSED http://stackoverflow.com/questions/6365118/market-licensing-example-always-getting-licensed The user has purchased the application or the application only exists as a draft . OK so the question now is How on earth am I supposed to learn what I need to learn from the Market Licensing Example if it always returns LICENSED and I cannot..
Android getOrientation() method returns bad results http://stackoverflow.com/questions/10192057/android-getorientation-method-returns-bad-results phone on the table it works well but when top of the phone points to the sky minus Z axis on the picture sphere is the Earth getOrientation starts giving really bad results. It gives values for Z axis between 0 to 180 degrees in a few real degrees...
How to get the rotation between accelerometer's axis and motion vector? http://stackoverflow.com/questions/10207044/how-to-get-the-rotation-between-accelerometers-axis-and-motion-vector searching for the second. Basically Human Referential motion direction Device Referential or accelerometer referential Earth Referential and i'm searching the way to find the rotation matrix to compute distances from HR to DR which I would then..
PopupWindow not triggering sytem context dialog on EditText long-press http://stackoverflow.com/questions/13248581/popupwindow-not-triggering-sytem-context-dialog-on-edittext-long-press easy way to trigger the system default long press dialog in an OnLongPressListener or will I have to move Heaven and Earth to implement it myself Because if that's the case I'll just write a Fragment for it and swap it out in a transaction. I..
J2ME/Android/BlackBerry - driving directions, route between two locations http://stackoverflow.com/questions/2023669/j2me-android-blackberry-driving-directions-route-between-two-locations UPDATE As it was stated in comments it's not officially allowed Google Maps APIs Terms of Service Google Maps Google Earth APIs Terms of Service Last updated May 27 2009 ... 10. License Restrictions. Except as expressly permitted under the Terms..
http://stackoverflow.com/questions/2317428/android-i-want-to-shake-it should be deactivated onPause and activated onResume to save resources CPU Battery . The code assumes we are on planet Earth and initializes the acceleration to earth gravity. Otherwise you would get a strong shake when the application starts and..
Open local KML File in Google Maps on Android http://stackoverflow.com/questions/2931281/open-local-kml-file-in-google-maps-on-android
How to change 1 meter to pixel distance? http://stackoverflow.com/questions/3385117/how-to-change-1-meter-to-pixel-distance that a pixel represents in meters varies with latitude so while a meter is a very small distance compared to the Earth radius latitude is important. All the examples below are javascript so you might need to translate them. Here is a general.. Once you have converted your x y to lat lon this is how you draw a circle Pseudo code var d radius 6378800 6378800 is Earth radius in meters var lat1 PI 180 centerLat var lng1 PI 180 centerLng Go around a circle from 0 to 360 degrees every 10 degrees.. x 180 PI Convert the lat and lon to pixel x y These two mashups draw a circle of a given radius on the surface of the Earth http maps.forum.nu gm_sensitive_circle2.html http maps.forum.nu gm_drag_polygon.html If you choose to ignore the projection..
How is it possible to create a spinner with images instead of text? http://stackoverflow.com/questions/3609231/how-is-it-possible-to-create-a-spinner-with-images-instead-of-text and string name planet_prompt Choose a planet string string array name planets item Mercury item item Venus item item Earth item item Mars item item Jupiter item item Saturn item item Uranus item item Neptune item string array android spinner..
Android - reference a string in a string array resource with xml http://stackoverflow.com/questions/4161256/android-reference-a-string-in-a-string-array-resource-with-xml addressing independent strings INSIDE the definition of the array. For example in your strings.xml string name earth Earth string string name moon Moon string string array name system item @string earth item item @string moon item string array..
How to calculate distance based on phone acceleration http://stackoverflow.com/questions/4329164/how-to-calculate-distance-based-on-phone-acceleration all the values of acceleration you read and you eventually get distance. The big problem with this is that on planet Earth there is a constant acceleration downwards of approximately 10m s s due to gravity. Figuring out which part of your vector..
How to change spinner background image? http://stackoverflow.com/questions/5829295/how-to-change-spinner-background-image or relative layout of your main.xml file and in the java file if the four values of your spinner is Mercury Venus Earth Mars then in the Onselected itemlistener put code like this public void onItemSelected AdapterView parent View view int.. Venus ll1.setBackgroundResource R.drawable.image if parent.getItemAtPosition pos .toString .equalsIgnoreCase Earth ll1.setBackgroundResource R.drawable.javaandroid if parent.getItemAtPosition pos .toString .equalsIgnoreCase Mars ll1.setBackgroundResource..
Android: How do I set the zoom level of map view to 1 km radius around my current location? http://stackoverflow.com/questions/6002563/android-how-do-i-set-the-zoom-level-of-map-view-to-1-km-radius-around-my-curren The following code is what ended up using. Given the screen width and the fact that at zoom level 1 the equator of Earth is 256 pixels long and every subsequent zoom level doubles the number of pixels needed to represent earths equator the following..
android device angle to vertical axis http://stackoverflow.com/questions/7261732/android-device-angle-to-vertical-axis I would require to retrieve the angle between the device and the vertical axis the axis pointing to the center of the Earth . So far all the documentations and tutorials I found were not very conclusive. Could you please explain me how can I do..
How to create map tiles from OpenStreetMap offline, display it on Android? http://stackoverflow.com/questions/7625620/how-to-create-map-tiles-from-openstreetmap-offline-display-it-on-android In order to get it working I also had to open the zip file and rename the top level folder from something like Google Earth depending on the map source you used to Mapnik in order for the tile to display in my Android application. In order to actually..
http://stackoverflow.com/questions/7677674/use-of-ntp-service of ntp service I'm developing an app that needs to control real time in any location on the Earth and do something when time comes. At the same time not to rely on system time because user can easily change it. Does anybody..
How to read and edit Android calendar events using the new Android 4.0 Ice Cream Sandwich API? http://stackoverflow.com/questions/7859005/how-to-read-and-edit-android-calendar-events-using-the-new-android-4-0-ice-cream Event .putExtra Events.DESCRIPTION Heading out with friends to do something awesome. .putExtra Events.EVENT_LOCATION Earth .putExtra Events.RRULE FREQ DAILY COUNT 10 .putExtra Events.AVAILABILITY Events.AVAILABILITY_BUSY .putExtra Events.ACCESS_LEVEL..
Android how to identify item in listview with checkbox http://stackoverflow.com/questions/9444165/android-how-to-identify-item-in-listview-with-checkbox But how can i check which checkbox I clicked on E.g I click on the 3rd checkbox I want to now it is in the row of Earth. Best would be if I get to know both the text of textview in the row of the listview Earth and and number of the item 3.. to now it is in the row of Earth. Best would be if I get to know both the text of textview in the row of the listview Earth and and number of the item 3 . I guess I have to set an onClickListener on the checkbox but what next checkBox.setOnClickListener..
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