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2014/10/16 ¤W¤È 08:16:38
android Programming Glossary: ivhttp://stackoverflow.com/questions/16789676/caching-images-and-displaying SO. The top answers are to solve this by 1. Lazy List 2. Universal Image Loader I have gone through both the solutions. I.. images. Here is my code public class Tools_ListItemActivity extends ListActivity private Context context String s private.. my code public class Tools_ListItemActivity extends ListActivity private Context context String s private static final String..
http://stackoverflow.com/questions/17079579/aes-algo-decryption-issue 20 public static final int PBE_ITERATION_COUNT 200 1024 private static final String PBE_ALGORITHM PBEWithSHA256And256BitAES.. PBEWithSHA256And256BitAES CBC BC algoritmo modo relleno private static final String CIPHER_ALGORITHM AES CBC PKCS5Padding.. final String CIPHER_ALGORITHM AES CBC PKCS5Padding byte iv 1234567890asdfgh .getBytes byte salt dfghjklpoiuytgftgyhj .getBytes..
set the absolute position of a view in Android http://stackoverflow.com/questions/3294590/set-the-absolute-position-of-a-view-in-android 100 . What do I have to do Thanks for the help this is driving me crazy. android view css position share improve this.. position share improve this question You can use RelativeLayout. Let's say you wanted a 30x40 ImageView at position 50.. at position 50 60 inside your layout. Somewhere in your activity Some existing RelativeLayout from your layout xml RelativeLayout..
How to display list of images in ListView in Android? http://stackoverflow.com/questions/459729/how-to-display-list-of-images-in-listview-in-android any comment public class ItemsList extends ListActivity private ItemsAdapter adapter @Override protected void onCreate.. any comment public class ItemsList extends ListActivity private ItemsAdapter adapter @Override protected void onCreate Bundle.. ItemManager.getLoadedItems setListAdapter this.adapter private class ItemsAdapter extends ArrayAdapter Item private Item..
ANDROID::Rotate image in imageview by an angle http://stackoverflow.com/questions/8981845/androidrotate-image-in-imageview-by-an-angle any simpler and less complex method available. ImageView iv ImageView findViewById imageviewid TextView tv TextView findViewById.. bMap 0 0 bMap.getWidth bMap.getHeight mat true iv.setImageBitmap bMapRotate android imageview share improve.. ScaleType.MATRIX required matrix.postRotate float angle pivX pivY imageView.setImageMatrix matrix This method does not require..
http://stackoverflow.com/questions/12198228/not-decrypting-what-i-crypted this I just want this to work... Replacing 'key2' for an IV to be later used in a AES CBC PKCS5Padding is an option I'm..
AES gets different results in iOS and Java http://stackoverflow.com/questions/17535918/aes-gets-different-results-in-ios-and-java java class AESencrp.class I have public static final byte IV 65 1 2 23 4 5 6 7 32 21 10 11 12 13 84 45 public static String.. keyBytes AES IvParameterSpec ivSpec new IvParameterSpec IV System.out.println ivSpec cipher.init Cipher.ENCRYPT_MODE keySpec..
How to speed up Android Emulation? http://stackoverflow.com/questions/1924920/how-to-speed-up-android-emulation I'm using eclipse on Linux and using a Pentium IV @3.2Gh with 1GB of ram. I've just followed the hello android..
Encryption compatable between Android and C# http://stackoverflow.com/questions/2090765/encryption-compatable-between-android-and-c-sharp C# but am not sure if these are compatible C# requires an IV nothing is specified for this in the Android example . Also..
How to encrypt and decrypt file in Android? http://stackoverflow.com/questions/4275311/how-to-encrypt-and-decrypt-file-in-android key derivation . For multiple files use an secure random IV. Always specify the character encoding when encoding decoding.. or HMAC using a different key and don't forget to add the IV at the start of the calculation. share improve this answer..
Encryption with AES-256 and the Initialization Vector http://stackoverflow.com/questions/4504280/encryption-with-aes-256-and-the-initialization-vector SHA 256 hash creation. My question comes in how the IV is created. One implementation 1 uses methods from the Cypher.. 1 uses methods from the Cypher class to derive the IV where are the other 2 uses the second 16 bytes of the hash as.. the other 2 uses the second 16 bytes of the hash as the IV. Quite simply why the difference and which is better from a..
What are best practices for using AES encryption in Android? http://stackoverflow.com/questions/8622367/what-are-best-practices-for-using-aes-encryption-in-android static final int SALT_LENGTH 20 public static final int IV_LENGTH 16 public static final int PBE_ITERATION_COUNT 100 private.. PROVIDER String ivHex encrypted.substring 0 IV_LENGTH 2 String encryptedHex encrypted.substring IV_LENGTH.. 0 IV_LENGTH 2 String encryptedHex encrypted.substring IV_LENGTH 2 IvParameterSpec ivspec new IvParameterSpec HexEncoder.toByte..
http://stackoverflow.com/questions/16789676/caching-images-and-displaying views in my ListView . After going through many threads in SO. The top answers are to solve this by 1. Lazy List 2. Universal Image Loader I have gone through both the solutions. I downloaded Lazy List codes in which the URL's are hardcoded.. Store them onto cache and display all the corresponding images. Here is my code public class Tools_ListItemActivity extends ListActivity private Context context String s private static final String TAG_POSTS posts private static final.. cache and display all the corresponding images. Here is my code public class Tools_ListItemActivity extends ListActivity private Context context String s private static final String TAG_POSTS posts private static final String TAG_MDNAME mdname..
http://stackoverflow.com/questions/17079579/aes-algo-decryption-issue class DescEncrypter public static final int SALT_LENGTH 20 public static final int PBE_ITERATION_COUNT 200 1024 private static final String PBE_ALGORITHM PBEWithSHA256And256BitAES CBC BC algoritmo modo relleno private static final String.. 200 1024 private static final String PBE_ALGORITHM PBEWithSHA256And256BitAES CBC BC algoritmo modo relleno private static final String CIPHER_ALGORITHM AES CBC PKCS5Padding byte iv 1234567890asdfgh .getBytes byte salt dfghjklpoiuytgftgyhj.. CBC BC algoritmo modo relleno private static final String CIPHER_ALGORITHM AES CBC PKCS5Padding byte iv 1234567890asdfgh .getBytes byte salt dfghjklpoiuytgftgyhj .getBytes public byte encrypt String password String cleartext..
set the absolute position of a view in Android http://stackoverflow.com/questions/3294590/set-the-absolute-position-of-a-view-in-android which is 20x20px with its center at the position 100 100 . What do I have to do Thanks for the help this is driving me crazy. android view css position share improve this question You can use RelativeLayout. Let's say you wanted.. for the help this is driving me crazy. android view css position share improve this question You can use RelativeLayout. Let's say you wanted a 30x40 ImageView at position 50 60 inside your layout. Somewhere in your activity Some existing.. use RelativeLayout. Let's say you wanted a 30x40 ImageView at position 50 60 inside your layout. Somewhere in your activity Some existing RelativeLayout from your layout xml RelativeLayout rl RelativeLayout findViewById R.id.my_relative_layout..
How to display list of images in ListView in Android? http://stackoverflow.com/questions/459729/how-to-display-list-of-images-in-listview-in-android if there is something wrong with my code I'd of course appreciate any comment public class ItemsList extends ListActivity private ItemsAdapter adapter @Override protected void onCreate Bundle savedInstanceState super.onCreate savedInstanceState.. is something wrong with my code I'd of course appreciate any comment public class ItemsList extends ListActivity private ItemsAdapter adapter @Override protected void onCreate Bundle savedInstanceState super.onCreate savedInstanceState setContentView.. this.adapter new ItemsAdapter this R.layout.items_list_item ItemManager.getLoadedItems setListAdapter this.adapter private class ItemsAdapter extends ArrayAdapter Item private Item items public ItemsAdapter Context context int textViewResourceId..
ANDROID::Rotate image in imageview by an angle http://stackoverflow.com/questions/8981845/androidrotate-image-in-imageview-by-an-angle code to rotate a image in ImageView by an angle. Is there any simpler and less complex method available. ImageView iv ImageView findViewById imageviewid TextView tv TextView findViewById txtViewsid Matrix mat new Matrix Bitmap bMap BitmapFactory.decodeResource.. degree angle to be rotated Bitmap bMapRotate Bitmap.createBitmap bMap 0 0 bMap.getWidth bMap.getHeight mat true iv.setImageBitmap bMapRotate android imageview share improve this question Another simple way to rotate an imageView Matrix.. an imageView Matrix matrix new Matrix imageView.setScaleType ScaleType.MATRIX required matrix.postRotate float angle pivX pivY imageView.setImageMatrix matrix This method does not require creating a new bitmap each time.. share improve this..
http://stackoverflow.com/questions/12198228/not-decrypting-what-i-crypted now.... Please someone shed some light on this I just want this to work... Replacing 'key2' for an IV to be later used in a AES CBC PKCS5Padding is an option I'm considering right now. Essentially nothing will change except..
AES gets different results in iOS and Java http://stackoverflow.com/questions/17535918/aes-gets-different-results-in-ios-and-java Encrypted Text newPasswordEnc and in another java class AESencrp.class I have public static final byte IV 65 1 2 23 4 5 6 7 32 21 10 11 12 13 84 45 public static String newEncrypt String text String key throws Exception Cipher.. b 0 keyBytes 0 len SecretKeySpec keySpec new SecretKeySpec keyBytes AES IvParameterSpec ivSpec new IvParameterSpec IV System.out.println ivSpec cipher.init Cipher.ENCRYPT_MODE keySpec ivSpec byte results cipher.doFinal text.getBytes UTF 8..
How to speed up Android Emulation? http://stackoverflow.com/questions/1924920/how-to-speed-up-android-emulation Android Emulation I'm trying to get started with Android development. I'm using eclipse on Linux and using a Pentium IV @3.2Gh with 1GB of ram. I've just followed the hello android howto with just one sad result the virtualization is too slow...
Encryption compatable between Android and C# http://stackoverflow.com/questions/2090765/encryption-compatable-between-android-and-c-sharp for encoding AES in Android and encoding decoding AES in C# but am not sure if these are compatible C# requires an IV nothing is specified for this in the Android example . Also a recommendation on a good way of encoding the encrypted string..
How to encrypt and decrypt file in Android? http://stackoverflow.com/questions/4275311/how-to-encrypt-and-decrypt-file-in-android mechanism look up password based encryption or password based key derivation . For multiple files use an secure random IV. Always specify the character encoding when encoding decoding strings or you'll be in trouble when the platform encoding..
Encryption with AES-256 and the Initialization Vector http://stackoverflow.com/questions/4504280/encryption-with-aes-256-and-the-initialization-vector So I turned to the second link to get an idea for my own iterative SHA 256 hash creation. My question comes in how the IV is created. One implementation 1 uses methods from the Cypher class to derive the IV where are the other 2 uses the second.. My question comes in how the IV is created. One implementation 1 uses methods from the Cypher class to derive the IV where are the other 2 uses the second 16 bytes of the hash as the IV. Quite simply why the difference and which is better.. uses methods from the Cypher class to derive the IV where are the other 2 uses the second 16 bytes of the hash as the IV. Quite simply why the difference and which is better from a security standpoint I am kinda confused to the derivation and..
What are best practices for using AES encryption in Android? http://stackoverflow.com/questions/8622367/what-are-best-practices-for-using-aes-encryption-in-android ICrypto public static final String PROVIDER BC public static final int SALT_LENGTH 20 public static final int IV_LENGTH 16 public static final int PBE_ITERATION_COUNT 100 private static final String RANDOM_ALGORITHM SHA1PRNG private.. try Cipher decryptionCipher Cipher.getInstance CIPHER_ALGORITHM PROVIDER String ivHex encrypted.substring 0 IV_LENGTH 2 String encryptedHex encrypted.substring IV_LENGTH 2 IvParameterSpec ivspec new IvParameterSpec HexEncoder.toByte.. CIPHER_ALGORITHM PROVIDER String ivHex encrypted.substring 0 IV_LENGTH 2 String encryptedHex encrypted.substring IV_LENGTH 2 IvParameterSpec ivspec new IvParameterSpec HexEncoder.toByte ivHex decryptionCipher.init Cipher.DECRYPT_MODE..
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