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2014/10/16 ¤W¤È 08:27:18
android Programming Glossary: vectorIs Google's Android OpenGL tutorial teaching incorrect linear algebra? http://stackoverflow.com/questions/11925647/is-googles-android-opengl-tutorial-teaching-incorrect-linear-algebra seems to not be able to decide whether it wants to use row vectors or column vectors and it looks all mixed up to me. On the Android.. to decide whether it wants to use row vectors or column vectors and it looks all mixed up to me. On the Android Matrix page.. Matrix page they claim that their convention is column vector column major which is typical of OpenGL. Am I right or is there..
Appropriate multiplication of matrices for rotation/translation http://stackoverflow.com/questions/11965593/appropriate-multiplication-of-matrices-for-rotation-translation 0 Matrix.multiplyMV is a method to multiply a 4 element vector by a 4x4 matrix and store the result in a 4 element column vector... by a 4x4 matrix and store the result in a 4 element column vector. In matrix notation result lhs x rhs. The resultVector element.. encountering an error because it is not a 4 element column vector. I'm assuming that '_ModelMatrixBody' is a 4x4 matrix and '_uBodyCentre'..
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 in global coordinates How can I get the magnetic field vector independent of the device rotation In this answer sample solution.. of the earth at the device location respectively. They are vectors in 3 dimentional space let call them a and m respectively... though it should not be drastic in most situation. Now a vector v in 3 dimensional space can be represented by a 3 tuples v_1..
http://stackoverflow.com/questions/17079579/aes-algo-decryption-issue SecretKey parameter specification for an initialization vector encryptionCipher.init Cipher.ENCRYPT_MODE secret ivspec Realizamos.. SecretKey parameter specification for an initialization vector decryptionCipher.init Cipher.DECRYPT_MODE secret ivspec Realizamos..
Dynamic ListView in Android app http://stackoverflow.com/questions/1917773/dynamic-listview-in-android-app
Understanding the Use of ColorMatrix and ColorMatrixColorFilter to Modify a Drawable's Hue http://stackoverflow.com/questions/4354939/understanding-the-use-of-colormatrix-and-colormatrixcolorfilter-to-modify-a-draw fuzzy for me. So I would think each pixel would be a 1 x 4 vector containing the argb values e.g. 0.2 0.5 0.8 1 that would be.. 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 1 0 which would give you a vector color of 0.4 0.5 0.8 1 . From limited testing this seems to..
Android TYPE_LINEAR_ACCELERATION sensor - what does it show? http://stackoverflow.com/questions/7858759/android-type-linear-acceleration-sensor-what-does-it-show respectively the linear acceleration gravity and rotation vector a quaternion . It is not defined how these are implemented...
Lame MP3 Encoder compile for Android http://stackoverflow.com/questions/8632835/lame-mp3-encoder-compile-for-android libmp3lame_vc8.vcproj logoe.ico depcomp folders i386 vector . edit file jni utils.h and replace definition extern ieee754_float32_t..
Android WebView JellyBean -> Should not happen: no rect-based-test nodes found http://stackoverflow.com/questions/12090899/android-webview-jellybean-should-not-happen-no-rect-based-test-nodes-found highlight rectangles for the touch point x y with the slop Vector IntRect WebViewCore getTouchHighlightRects int x int y int slop.. WebViewCore getTouchHighlightRects int x int y int slop Vector IntRect rects m_mousePos IntPoint x m_scrollOffsetX y m_scrollOffsetY..
Dynamic ListView in Android app http://stackoverflow.com/questions/1917773/dynamic-listview-in-android-app ListActivity private LayoutInflater mInflater private Vector RowData data Called when the activity is first created. @Override.. getSystemService Activity.LAYOUT_INFLATER_SERVICE data new Vector RowData RowData rd new RowData item1 description1 data.add rd..
Pass ArrayList data into SOAP web service in android http://stackoverflow.com/questions/19198017/pass-arraylist-data-into-soap-web-service-in-android envelope SoapObject results SoapObject envelope.bodyIn Vector response Vector envelope.getResponse share improve this answer..
Playing multiple sounds using SoundManager http://stackoverflow.com/questions/3039078/playing-multiple-sounds-using-soundmanager mAudioManager private Context mContext private Vector Integer mAvailibleSounds new Vector Integer private Vector Integer.. mContext private Vector Integer mAvailibleSounds new Vector Integer private Vector Integer mKillSoundQueue new Vector Integer.. Vector Integer mAvailibleSounds new Vector Integer private Vector Integer mKillSoundQueue new Vector Integer private Handler mHandler..
Android ListView with delete button http://stackoverflow.com/questions/3750380/android-listview-with-delete-button private DetailsListAdapter mDetailsListAdapter private Vector String mDetailsTimeStringsList private Vector String mDetailsDateStringsList.. private Vector String mDetailsTimeStringsList private Vector String mDetailsDateStringsList private ListView mDetailsListView.. mDetailsListAdapter mDetailsTimeStringsList new Vector String mDetailsDateStringsList new Vector String updateTheList..
Change ListView background - strange behaviour http://stackoverflow.com/questions/4583349/change-listview-background-strange-behaviour 1 private Handler mHandler new Handler private Vector String data @Override protected void onCreate Bundle savedInstanceState.. setContentView R.layout.officeslayout data new Vector String Add data as per your requirement data.add one data.add..
Code for download video from Youtube on Java, Android http://stackoverflow.com/questions/7203047/code-for-download-video-from-youtube-on-java-android java.net.URL import java.util.Enumeration import java.util.Vector import android.app.Activity import android.app.ProgressDialog.. catch IOException e throw new RuntimeException Vector url_encoded_fmt_stream_map new Vector begin 0 end tmpstr.indexOf.. RuntimeException Vector url_encoded_fmt_stream_map new Vector begin 0 end tmpstr.indexOf while end 1 url_encoded_fmt_stream_map.addElement..
Starting Activity from Fragment causes NullPointerException http://stackoverflow.com/questions/8748064/starting-activity-from-fragment-causes-nullpointerexception import java.util.List import java.util.Vector import android.os.Bundle import android.support.v4.app.Fragment.. initialisePaging List Fragment fragments new Vector Fragment fragments.add Fragment.instantiate this Class1Overview.class.getName..
how to store image in sqlite database http://stackoverflow.com/questions/9357668/how-to-store-image-in-sqlite-database db static EfficientAdapter adp static Cursor c1 static Vector String IMAGE new Vector String @Override public void onCreate.. adp static Cursor c1 static Vector String IMAGE new Vector String @Override public void onCreate Bundle savedInstanceState..
support FragmentPagerAdapter holds reference to old fragments http://stackoverflow.com/questions/9727173/support-fragmentpageradapter-holds-reference-to-old-fragments a list of fragments like so List Fragment fragments new Vector Fragment fragments.add Fragment.instantiate this Fragment1.class.getName..
Is Google's Android OpenGL tutorial teaching incorrect linear algebra? http://stackoverflow.com/questions/11925647/is-googles-android-opengl-tutorial-teaching-incorrect-linear-algebra code and was quite baffled by what I saw. The tutorial seems to not be able to decide whether it wants to use row vectors or column vectors and it looks all mixed up to me. On the Android Matrix page they claim that their convention is column.. quite baffled by what I saw. The tutorial seems to not be able to decide whether it wants to use row vectors or column vectors and it looks all mixed up to me. On the Android Matrix page they claim that their convention is column vector column major.. column vectors and it looks all mixed up to me. On the Android Matrix page they claim that their convention is column vector column major which is typical of OpenGL. Am I right or is there something I am missing Here are the relevant bits of it..
Appropriate multiplication of matrices for rotation/translation http://stackoverflow.com/questions/11965593/appropriate-multiplication-of-matrices-for-rotation-translation GLES20Renderer._ModelMatrixBody 0 GLES20Renderer._uBodyCentre 0 Matrix.multiplyMV is a method to multiply a 4 element vector by a 4x4 matrix and store the result in a 4 element column vector. In matrix notation result lhs x rhs. The resultVector.. is a method to multiply a 4 element vector by a 4x4 matrix and store the result in a 4 element column vector. In matrix notation result lhs x rhs. The resultVector element values are undefined if the resultVector elements overlap.. by your naming of '_uBodyCentreMatrix' you are probably encountering an error because it is not a 4 element column vector. I'm assuming that '_ModelMatrixBody' is a 4x4 matrix and '_uBodyCentre' is a 4 element vector otherwise these could be..
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 find similar questions below Getting magnetic field values in global coordinates How can I get the magnetic field vector independent of the device rotation In this answer sample solution is described it is for linear acceleration but I think.. 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 stand still and rotate your device theoretically m does.. change little in a short distance . But a does change even though it should not be drastic in most situation. Now a vector v in 3 dimensional space can be represented by a 3 tuples v_1 v_2 v_3 with respect to some basis e_1 e_2 e_3 i.e v v_1 e_1..
http://stackoverflow.com/questions/17079579/aes-algo-decryption-issue IvParameterSpec ivspec new IvParameterSpec iv Accion SecretKey parameter specification for an initialization vector encryptionCipher.init Cipher.ENCRYPT_MODE secret ivspec Realizamos el cifrado encryptedText encryptionCipher.doFinal cleartext.getBytes.. IvParameterSpec ivspec new IvParameterSpec iv Accion SecretKey parameter specification for an initialization vector decryptionCipher.init Cipher.DECRYPT_MODE secret ivspec Realizamos el descifrado byte decryptedText decryptionCipher.doFinal..
Dynamic ListView in Android app http://stackoverflow.com/questions/1917773/dynamic-listview-in-android-app
Understanding the Use of ColorMatrix and ColorMatrixColorFilter to Modify a Drawable's Hue http://stackoverflow.com/questions/4354939/understanding-the-use-of-colormatrix-and-colormatrixcolorfilter-to-modify-a-draw convert to the new color. So this is where it starts to get fuzzy for me. So I would think each pixel would be a 1 x 4 vector containing the argb values e.g. 0.2 0.5 0.8 1 that would be dotted with the transformation matrix. So to double the red.. intensity of an image you would use a matrix such as 2 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 1 0 which would give you a vector color of 0.4 0.5 0.8 1 . From limited testing this seems to be the case and works properly but I actually still end up with..
Android TYPE_LINEAR_ACCELERATION sensor - what does it show? http://stackoverflow.com/questions/7858759/android-type-linear-acceleration-sensor-what-does-it-show TYPE_ROTATION_VECTOR are fused sensors which return respectively the linear acceleration gravity and rotation vector a quaternion . It is not defined how these are implemented. On some devices they are implemented in h w on some devices..
Lame MP3 Encoder compile for Android http://stackoverflow.com/questions/8632835/lame-mp3-encoder-compile-for-android remove what's left from GNU autotools Makefile.am Makefile.in libmp3lame_vc8.vcproj logoe.ico depcomp folders i386 vector . edit file jni utils.h and replace definition extern ieee754_float32_t fast_log2 ieee754_float32_t x with this extern float..
Android WebView JellyBean -> Should not happen: no rect-based-test nodes found http://stackoverflow.com/questions/12090899/android-webview-jellybean-should-not-happen-no-rect-based-test-nodes-found WebCore HTMLElement element and this too.. get the highlight rectangles for the touch point x y with the slop Vector IntRect WebViewCore getTouchHighlightRects int x int y int slop Vector IntRect rects m_mousePos IntPoint x m_scrollOffsetX.. for the touch point x y with the slop Vector IntRect WebViewCore getTouchHighlightRects int x int y int slop Vector IntRect rects m_mousePos IntPoint x m_scrollOffsetX y m_scrollOffsetY HitTestResult hitTestResult m_mainFrame eventHandler..
Dynamic ListView in Android app http://stackoverflow.com/questions/1917773/dynamic-listview-in-android-app take a look at the example below public class CustomList extends ListActivity private LayoutInflater mInflater private Vector RowData data Called when the activity is first created. @Override public void onCreate Bundle savedInstanceState super.onCreate.. setContentView R.layout.main mInflater LayoutInflater getSystemService Activity.LAYOUT_INFLATER_SERVICE data new Vector RowData RowData rd new RowData item1 description1 data.add rd rd new RowData item2 description2 data.add rd rd new RowData..
Pass ArrayList data into SOAP web service in android http://stackoverflow.com/questions/19198017/pass-arraylist-data-into-soap-web-service-in-android
Playing multiple sounds using SoundManager http://stackoverflow.com/questions/3039078/playing-multiple-sounds-using-soundmanager private HashMap Integer Integer mSoundPoolMap private AudioManager mAudioManager private Context mContext private Vector Integer mAvailibleSounds new Vector Integer private Vector Integer mKillSoundQueue new Vector Integer private Handler mHandler.. mSoundPoolMap private AudioManager mAudioManager private Context mContext private Vector Integer mAvailibleSounds new Vector Integer private Vector Integer mKillSoundQueue new Vector Integer private Handler mHandler new Handler public SoundManager.. AudioManager mAudioManager private Context mContext private Vector Integer mAvailibleSounds new Vector Integer private Vector Integer mKillSoundQueue new Vector Integer private Handler mHandler new Handler public SoundManager public void initSounds..
Android ListView with delete button http://stackoverflow.com/questions/3750380/android-listview-with-delete-button . public class ListOfDetails extends Activity private DetailsListAdapter mDetailsListAdapter private Vector String mDetailsTimeStringsList private Vector String mDetailsDateStringsList private ListView mDetailsListView private int.. extends Activity private DetailsListAdapter mDetailsListAdapter private Vector String mDetailsTimeStringsList private Vector String mDetailsDateStringsList private ListView mDetailsListView private int mSelectedPosition @Override public void onCreate.. mDetailsListAdapter new DetailsListAdapter mDetailsListView.setAdapter mDetailsListAdapter mDetailsTimeStringsList new Vector String mDetailsDateStringsList new Vector String updateTheList class DetailsListAdapter extends ArrayAdapter String DetailsListAdapter..
Change ListView background - strange behaviour http://stackoverflow.com/questions/4583349/change-listview-background-strange-behaviour because you need to refresh the ListView. private int selectedListItem 1 private Handler mHandler new Handler private Vector String data @Override protected void onCreate Bundle savedInstanceState super.onCreate savedInstanceState setContentView.. onCreate Bundle savedInstanceState super.onCreate savedInstanceState setContentView R.layout.officeslayout data new Vector String Add data as per your requirement data.add one data.add two data.add three data.add four data.add Five data.add Six..
Code for download video from Youtube on Java, Android http://stackoverflow.com/questions/7203047/code-for-download-video-from-youtube-on-java-android import java.net.MalformedURLException import java.net.URL import java.util.Enumeration import java.util.Vector import android.app.Activity import android.app.ProgressDialog import android.net.Uri import android.os.AsyncTask import.. 27 end catch MalformedURLException e throw new RuntimeException catch IOException e throw new RuntimeException Vector url_encoded_fmt_stream_map new Vector begin 0 end tmpstr.indexOf while end 1 url_encoded_fmt_stream_map.addElement tmpstr.substring.. e throw new RuntimeException catch IOException e throw new RuntimeException Vector url_encoded_fmt_stream_map new Vector begin 0 end tmpstr.indexOf while end 1 url_encoded_fmt_stream_map.addElement tmpstr.substring begin end begin end 1..
Starting Activity from Fragment causes NullPointerException http://stackoverflow.com/questions/8748064/starting-activity-from-fragment-causes-nullpointerexception getItem int position return this.fragments.get position ViewPagerActivity.java import java.util.List import java.util.Vector import android.os.Bundle import android.support.v4.app.Fragment import android.support.v4.app.FragmentActivity import android.support.v4.view.ViewPager.. pager.setAdapter initialisePaging private ViewPagerAdapter initialisePaging List Fragment fragments new Vector Fragment fragments.add Fragment.instantiate this Class1Overview.class.getName fragments.add Fragment.instantiate this Class2Overview.class.getName..
how to store image in sqlite database http://stackoverflow.com/questions/9357668/how-to-store-image-in-sqlite-database adapter adapter1 static ListView lv1 static SQLiteDatabase db static EfficientAdapter adp static Cursor c1 static Vector String IMAGE new Vector String @Override public void onCreate Bundle savedInstanceState super.onCreate savedInstanceState.. ListView lv1 static SQLiteDatabase db static EfficientAdapter adp static Cursor c1 static Vector String IMAGE new Vector String @Override public void onCreate Bundle savedInstanceState super.onCreate savedInstanceState setContentView R.layout.main..
support FragmentPagerAdapter holds reference to old fragments http://stackoverflow.com/questions/9727173/support-fragmentpageradapter-holds-reference-to-old-fragments appreciated. I am using a FragmentPagerAdapter which accepts a list of fragments like so List Fragment fragments new Vector Fragment fragments.add Fragment.instantiate this Fragment1.class.getName ... new PagerAdapter getSupportFragmentManager..
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