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2014/10/16 ¤W¤È 08:22:50
android Programming Glossary: returnSending Email in Android using JavaMail API without using the default/built-in app http://stackoverflow.com/questions/2020088/sending-email-in-android-using-javamail-api-without-using-the-default-built-in-a PasswordAuthentication getPasswordAuthentication return new PasswordAuthentication user password public synchronized.. type public String getContentType if type null return application octet stream else return type public InputStream.. if type null return application octet stream else return type public InputStream getInputStream throws IOException ..
How do I do a lazy load of images in ListView http://stackoverflow.com/questions/541966/how-do-i-do-a-lazy-load-of-images-in-listview String urlString if drawableMap.containsKey urlString return drawableMap.get urlString Log.d this.getClass .getSimpleName.. this.getClass .getSimpleName could not get thumbnail return drawable catch MalformedURLException e Log.e this.getClass.. Log.e this.getClass .getSimpleName fetchDrawable failed e return null catch IOException e Log.e this.getClass .getSimpleName..
Android: How to declare global variables? http://stackoverflow.com/questions/708012/android-how-to-declare-global-variables Application private String myState public String getState return myState public void setState String s myState s class Blah extends..
How to use an existing database with an Android application [duplicate] http://stackoverflow.com/questions/9109438/how-to-use-an-existing-database-with-an-android-application new File DB_PATH DB_NAME Log.v dbFile dbFile dbFile.exists return dbFile.exists Copy the database from assets private void copyDataBase.. mPath null SQLiteDatabase.NO_LOCALIZED_COLLATORS return mDataBase null @Override public synchronized void close if.. throw new Error UnableToCreateDatabase return this public TestAdapter open throws SQLException try mDbHelper.openDataBase..
Android - basic gesture detection http://stackoverflow.com/questions/937313/android-basic-gesture-detection if velocityX 0 moveRight else moveLeft return true else return false Is it possible to lay a transparent.. velocityX 0 moveRight else moveLeft return true else return false Is it possible to lay a transparent view over the top.. public boolean onTouch View v MotionEvent event return gestureDetector.onTouchEvent event class MyGestureDetector..
Android ViewPager - can't update dynamically http://stackoverflow.com/questions/10849552/android-viewpager-cant-update-dynamically public abstract Fragment getItem int position Return the Fragment associated with a specified position. public Object.. be shown. position The page position to be instantiated. Returns Returns an Object representing the new page. This does not.. position The page position to be instantiated. Returns Returns an Object representing the new page. This does not need to..
Android - HorizontalScrollView within ScrollView Touch Handling http://stackoverflow.com/questions/2646028/android-horizontalscrollview-within-scrollview-touch-handling ev mGestureDetector.onTouchEvent ev Return false if we're scrolling in the x direction class YScrollDetector..
What does Layout Inflater in Android do? http://stackoverflow.com/questions/3477422/what-does-layout-inflater-in-android-do
Can someone explain how TrafficStats works its magic in the Android OS? http://stackoverflow.com/questions/4029186/can-someone-explain-how-trafficstats-works-its-magic-in-the-android-os return tryBoth mobileTxFile_1 mobileTxFile_2 Return the number from the first file which exists and contains data.. b long num readNumber a return num 0 num readNumber b Returns an ASCII decimal number read from the specified file 1 on error... return tryBoth mobileTxFile_1 mobileTxFile_2 Return the number from the first file which exists and contains data..
How can I get the size of a folder on SD card in Android? http://stackoverflow.com/questions/4040912/how-can-i-get-the-size-of-a-folder-on-sd-card-in-android Just go through all files and sum the length of them Return the size of a directory in bytes private static long dirSize..
Multiple Table SQLite DB Adapter(s) in Android? http://stackoverflow.com/questions/4063510/multiple-table-sqlite-db-adapters-in-android DATABASE_TABLE ROW_ID rowId null 0 NON NLS 1 Return a Cursor over the list of all cars in the database @return.. String ROW_ID NAME MODEL YEAR null null null null null Return a Cursor positioned at the car that matches the given rowId..
Auto Scale TextView Text to Fit within Bounds http://stackoverflow.com/questions/5033012/auto-scale-textview-text-to-fit-within-bounds mMaxTextSize maxTextSize requestLayout invalidate Return upper text size limit @return public float getMaxTextSize return.. mMinTextSize minTextSize requestLayout invalidate Return lower text size limit @return public float getMinTextSize return.. boolean addEllipsis mAddEllipsis addEllipsis Return flag to add ellipsis to text that overflows at the smallest..
Android Cursor with ORMLite to use in CursorAdapter http://stackoverflow.com/questions/7159816/android-cursor-with-ormlite-to-use-in-cursoradapter DAO Cursor methods dao.mapSelectStarRow databaseResults Return the latest row from the database results from a query to select..
Android HTML ImageGetter as AsyncTask http://stackoverflow.com/questions/7424512/android-html-imagegetter-as-asynctask for Drawable to facilitate redraw I called it URLDrawable Return the URLDrawable in getDrawable method of Html.ImageGetter Once..
Return data from AsyncTask class http://stackoverflow.com/questions/7618614/return-data-from-asynctask-class data from AsyncTask class How do I get the data from my AsyncTask..
http://stackoverflow.com/questions/8267928/android-rest-client-sample response null Use HTTP Client APIs to make the call. Return the HTTP Response body here. return response @Override protected.. String... arg0 Use HTTP client API's to do the POST Return response. @Override protected void onPostExecute String result..
webview shouldinterceptrequest example http://stackoverflow.com/questions/8273991/webview-shouldinterceptrequest-example else return super.shouldInterceptRequest view url Return WebResourceResponse with CSS markup from a String. @SuppressWarnings.. StringBufferInputStream body background color #F781F3 Return WebResourceResponse with CSS markup from an asset e.g. assets.. .open style.css catch IOException e return null Return WebResourceResponse with CSS markup from a raw resource e.g...
android.app.Application cannot be instantiated due to NullPointerException http://stackoverflow.com/questions/9039017/android-app-application-cannot-be-instantiated-due-to-nullpointerexception Intent intent getIntent get extras from intent. Return null if intent is sent from add action. foodName intent.getStringExtra..
Sending Email in Android using JavaMail API without using the default/built-in app http://stackoverflow.com/questions/2020088/sending-email-in-android-using-javamail-api-without-using-the-default-built-in-a false session Session.getDefaultInstance props this protected PasswordAuthentication getPasswordAuthentication return new PasswordAuthentication user password public synchronized void sendMail String subject String body String sender String.. super this.data data public void setType String type this.type type public String getContentType if type null return application octet stream else return type public InputStream getInputStream throws IOException return new ByteArrayInputStream.. String type this.type type public String getContentType if type null return application octet stream else return type public InputStream getInputStream throws IOException return new ByteArrayInputStream data public String getName..
How do I do a lazy load of images in ListView http://stackoverflow.com/questions/541966/how-do-i-do-a-lazy-load-of-images-in-listview new HashMap String Drawable public Drawable fetchDrawable String urlString if drawableMap.containsKey urlString return drawableMap.get urlString Log.d this.getClass .getSimpleName image url urlString try InputStream is fetch urlString Drawable.. drawable.getMinimumHeight drawable.getMinimumWidth else Log.w this.getClass .getSimpleName could not get thumbnail return drawable catch MalformedURLException e Log.e this.getClass .getSimpleName fetchDrawable failed e return null catch IOException.. thumbnail return drawable catch MalformedURLException e Log.e this.getClass .getSimpleName fetchDrawable failed e return null catch IOException e Log.e this.getClass .getSimpleName fetchDrawable failed e return null public void fetchDrawableOnThread..
Android: How to declare global variables? http://stackoverflow.com/questions/708012/android-how-to-declare-global-variables which has the exact same effect class MyApp extends Application private String myState public String getState return myState public void setState String s myState s class Blah extends Activity @Override public void onCreate Bundle b .....
How to use an existing database with an Android application [duplicate] http://stackoverflow.com/questions/9109438/how-to-use-an-existing-database-with-an-android-application Da Name private boolean checkDataBase File dbFile new File DB_PATH DB_NAME Log.v dbFile dbFile dbFile.exists return dbFile.exists Copy the database from assets private void copyDataBase throws IOException InputStream mInput mContext.getAssets.. mDataBase SQLiteDatabase.openDatabase mPath null SQLiteDatabase.NO_LOCALIZED_COLLATORS return mDataBase null @Override public synchronized void close if mDataBase null mDataBase.close super.close Write a DataAdapter.. mIOException Log.e TAG mIOException.toString UnableToCreateDatabase throw new Error UnableToCreateDatabase return this public TestAdapter open throws SQLException try mDbHelper.openDataBase mDbHelper.close mDb mDbHelper.getReadableDatabase..
Android - basic gesture detection http://stackoverflow.com/questions/937313/android-basic-gesture-detection button push if Math.abs dx MAJOR_MOVE Math.abs velocityX Math.absvelocityY if velocityX 0 moveRight else moveLeft return true else return false Is it possible to lay a transparent view over the top of my screen to capture flings If I choose.. dx MAJOR_MOVE Math.abs velocityX Math.absvelocityY if velocityX 0 moveRight else moveLeft return true else return false Is it possible to lay a transparent view over the top of my screen to capture flings If I choose not to inflate my.. this new MyGestureDetector gestureListener new View.OnTouchListener public boolean onTouch View v MotionEvent event return gestureDetector.onTouchEvent event class MyGestureDetector extends SimpleOnGestureListener @Override public boolean onFling..
Android ViewPager - can't update dynamically http://stackoverflow.com/questions/10849552/android-viewpager-cant-update-dynamically reference android support v4 app FragmentPagerAdapter.html public abstract Fragment getItem int position Return the Fragment associated with a specified position. public Object instantiateItem ViewGroup container int position Create.. container The containing View in which the page will be shown. position The page position to be instantiated. Returns Returns an Object representing the new page. This does not need to be a View but can be some other container of the page... container The containing View in which the page will be shown. position The page position to be instantiated. Returns Returns an Object representing the new page. This does not need to be a View but can be some other container of the page. But still..
Android - HorizontalScrollView within ScrollView Touch Handling http://stackoverflow.com/questions/2646028/android-horizontalscrollview-within-scrollview-touch-handling boolean onInterceptTouchEvent MotionEvent ev return super.onInterceptTouchEvent ev mGestureDetector.onTouchEvent ev Return false if we're scrolling in the x direction class YScrollDetector extends SimpleOnGestureListener @Override public boolean..
What does Layout Inflater in Android do? http://stackoverflow.com/questions/3477422/what-does-layout-inflater-in-android-do
Can someone explain how TrafficStats works its magic in the Android OS? http://stackoverflow.com/questions/4029186/can-someone-explain-how-trafficstats-works-its-magic-in-the-android-os return tryBoth mobileRxFile_1 mobileRxFile_2 public long getMobileTxBytes return tryBoth mobileTxFile_1 mobileTxFile_2 Return the number from the first file which exists and contains data private static long tryBoth String a String b long num readNumber.. and contains data private static long tryBoth String a String b long num readNumber a return num 0 num readNumber b Returns an ASCII decimal number read from the specified file 1 on error. private static long readNumber String filename File f.. return tryBoth mobileRxFile_1 mobileRxFile_2 public long getMobileTxBytes return tryBoth mobileTxFile_1 mobileTxFile_2 Return the number from the first file which exists and contains data private static long tryBoth String a String b long num readNumber..
How can I get the size of a folder on SD card in Android? http://stackoverflow.com/questions/4040912/how-can-i-get-the-size-of-a-folder-on-sd-card-in-android android size folder sd card share improve this question Just go through all files and sum the length of them Return the size of a directory in bytes private static long dirSize File dir if dir.exists long result 0 File fileList dir.listFiles..
Multiple Table SQLite DB Adapter(s) in Android? http://stackoverflow.com/questions/4063510/multiple-table-sqlite-db-adapters-in-android otherwise public boolean deleteCar long rowId return this.mDb.delete DATABASE_TABLE ROW_ID rowId null 0 NON NLS 1 Return a Cursor over the list of all cars in the database @return Cursor over all cars public Cursor getAllCars return this.mDb.query.. Cursor getAllCars return this.mDb.query DATABASE_TABLE new String ROW_ID NAME MODEL YEAR null null null null null Return a Cursor positioned at the car that matches the given rowId @param rowId @return Cursor positioned to matching car if found..
Auto Scale TextView Text to Fit within Bounds http://stackoverflow.com/questions/5033012/auto-scale-textview-text-to-fit-within-bounds @param maxTextSize public void setMaxTextSize float maxTextSize mMaxTextSize maxTextSize requestLayout invalidate Return upper text size limit @return public float getMaxTextSize return mMaxTextSize Set the lower text size limit and invalidate.. @param minTextSize public void setMinTextSize float minTextSize mMinTextSize minTextSize requestLayout invalidate Return lower text size limit @return public float getMinTextSize return mMinTextSize Set flag to add ellipsis to text that overflows.. at the smallest text size @param addEllipsis public void setAddEllipsis boolean addEllipsis mAddEllipsis addEllipsis Return flag to add ellipsis to text that overflows at the smallest text size @return public boolean getAddEllipsis return mAddEllipsis..
Android Cursor with ORMLite to use in CursorAdapter http://stackoverflow.com/questions/7159816/android-cursor-with-ormlite-to-use-in-cursoradapter Cursor object around at will. It also supports the following DAO Cursor methods dao.mapSelectStarRow databaseResults Return the latest row from the database results from a query to select . With this you can change the cursor location for example..
Android HTML ImageGetter as AsyncTask http://stackoverflow.com/questions/7424512/android-html-imagegetter-as-asynctask The steps that I did basically Create my own subclass for Drawable to facilitate redraw I called it URLDrawable Return the URLDrawable in getDrawable method of Html.ImageGetter Once onPostExecute is called I redraw the container of the Spanned..
Return data from AsyncTask class http://stackoverflow.com/questions/7618614/return-data-from-asynctask-class data from AsyncTask class How do I get the data from my AsyncTask My MainActivity is calling the DataCall.getJSON function..
http://stackoverflow.com/questions/8267928/android-rest-client-sample @Override protected String doInBackground String... params String response null Use HTTP Client APIs to make the call. Return the HTTP Response body here. return response @Override protected void onPostExecute String result mCallback.onTaskComplete.. callback @Override protected String doInBackground String... arg0 Use HTTP client API's to do the POST Return response. @Override protected void onPostExecute String result mCallback.onTaskComplete result super.onPostExecute result..
webview shouldinterceptrequest example http://stackoverflow.com/questions/8273991/webview-shouldinterceptrequest-example if url.contains .css return getCssWebResourceResponseFromAsset else return super.shouldInterceptRequest view url Return WebResourceResponse with CSS markup from a String. @SuppressWarnings deprecation private WebResourceResponse getCssWebResourceResponseFromString.. return getUtf8EncodedCssWebResourceResponse new StringBufferInputStream body background color #F781F3 Return WebResourceResponse with CSS markup from an asset e.g. assets style.css . private WebResourceResponse getCssWebResourceResponseFromAsset.. try return getUtf8EncodedCssWebResourceResponse getAssets .open style.css catch IOException e return null Return WebResourceResponse with CSS markup from a raw resource e.g. raw style.css . private WebResourceResponse getCssWebResourceResponseFromRawResource..
android.app.Application cannot be instantiated due to NullPointerException http://stackoverflow.com/questions/9039017/android-app-application-cannot-be-instantiated-due-to-nullpointerexception DatePicker findViewById R.id.date_picker get intent from ReminderList. Intent intent getIntent get extras from intent. Return null if intent is sent from add action. foodName intent.getStringExtra foodName foodDate Calendar intent.getSerializableExtra..
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