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2014/10/16 ¤W¤È 08:25:37
android Programming Glossary: tagSimpleCursorTreeAdapter and CursorLoader for ExpandableListView http://stackoverflow.com/questions/10611927/simplecursortreeadapter-and-cursorloader-for-expandablelistview Cursor private final String DEBUG_TAG getClass .getSimpleName .toString private static final String.. called when a new Loader needs to be created. Log.d DEBUG_TAG onCreateLoader for loader_id id CursorLoader cl if id 1 child.. Swap the new cursor in. int id loader.getId Log.d DEBUG_TAG onLoadFinished for loader_id id if id 1 child cursor if data.isClosed..
This Handler class should be static or leaks might occur: IncomingHandler http://stackoverflow.com/questions/11407943/this-handler-class-should-be-static-or-leaks-might-occur-incominghandler extends Service private static final String TAG UDPListenerService private ThreadGroup myThreads new ThreadGroup..
Android: ListView elements with multiple clickable buttons http://stackoverflow.com/questions/1709166/android-listview-elements-with-multiple-clickable-buttons AdapterView list View view int position long id Log.i TAG onListItemClick position However I don't want the whole item..
BitmapFactory OOM driving me nuts http://stackoverflow.com/questions/1955410/bitmapfactory-oom-driving-me-nuts if mMaxVmHeap 24 1024 mMaxNativeHeap 24 1024 else Log.w TAG Unrecognized VM heap size mMaxVmHeap Then each time we need..
Custom fonts and XML layouts (Android) http://stackoverflow.com/questions/2376250/custom-fonts-and-xml-layouts-android TextViewPlus extends TextView private static final String TAG TextView public TextViewPlus Context context super context public.. ctx.getAssets asset catch Exception e Log.e TAG Could not get typeface e.getMessage return false setTypeface..
How to load an ImageView by URL in Android? http://stackoverflow.com/questions/2471935/how-to-load-an-imageview-by-url-in-android data 0 data.length options catch IOException e Log.e TAG Could not load Bitmap from url finally closeStream in closeStream..
How to return a result (startActivityForResult) from a TabHost Activity? http://stackoverflow.com/questions/2497205/how-to-return-a-result-startactivityforresult-from-a-tabhost-activity mResultCode resultData mResultData if Config.LOGV Log.v TAG Finishing self token mToken try if ActivityManagerNative.getDefault..
http://stackoverflow.com/questions/3815090/webview-and-html5-video web view. public void onCompletion MediaPlayer mp Log.d TAG Video completo a.setContentView R.layout.main WebView wb WebView..
Android - SMS Broadcast receiver http://stackoverflow.com/questions/4117701/android-sms-broadcast-receiver private static final String TAG SMSBroadcastReceiver @Override public void onReceive Context.. public void onReceive Context context Intent intent Log.i TAG Intent recieved intent.getAction if intent.getAction SMS_RECEIVED.. byte pdus i if messages.length 1 Log.i TAG Message recieved messages 0 .getMessageBody And the manifest..
List Filter Custom Adapter dont give result http://stackoverflow.com/questions/8678163/list-filter-custom-adapter-dont-give-result results TODO Auto generated method stub Log.d TAG publishResults notifyDataSetChanged @Override protected.. results.count names.size return results Log.d TAG end getFilter return newFilter @Override public String getItem..
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 extends SQLiteOpenHelper private static String TAG DataBaseHelper Tag just for the LogCat window destination path.. try Copy the database from assests copyDataBase Log.e TAG createDatabase database created catch IOException mIOException.. public class TestAdapter protected static final String TAG DataAdapter private final Context mContext private SQLiteDatabase..
How to draw a path on a map using kml file? http://stackoverflow.com/questions/3109158/how-to-draw-a-path-on-a-map-using-kml-file description Examples of paths. Note that the tessellate tag is by default set to 0. If you want to create tessellated lines.. DefaultHandler Fields private boolean in_kmltag false private boolean in_placemarktag false private boolean.. boolean in_kmltag false private boolean in_placemarktag false private boolean in_nametag false private boolean in_descriptiontag..
Android: How to copy files in 'assets' to sdcard? http://stackoverflow.com/questions/4447477/android-how-to-copy-files-in-assets-to-sdcard null try files assetManager.list catch IOException e Log.e tag Failed to get asset file list. e for String filename files InputStream.. out.flush out.close out null catch IOException e Log.e tag Failed to copy asset file filename e private void copyFile..
How to parse XML using the SAX parser http://stackoverflow.com/questions/4827344/how-to-parse-xml-using-the-sax-parser for the other elements of channel ex. On every item tag occurrence we create a new Item object. chanItem.setStartElementListener.. start Attributes attributes item new Item On every item tag occurrence we add the current Item object to the Items container... was a very quick example as you can see. The major advantage of using the android.sax SAX implementation is that you can..
Android: How to declare global variables? http://stackoverflow.com/questions/708012/android-how-to-declare-global-variables and then specify that class in the application tag in your manifest. Now Android will automatically create an instance.. tie your Application override to your application a tag is necessary in the manifest file. Again see the Android docs..
Android Activity Life Cycle - What are all these methods for? http://stackoverflow.com/questions/8515936/android-activity-life-cycle-what-are-all-these-methods-for public class MainActivity extends Activity String tag LifeCycleEvents Called when the activity is first created. @Override.. savedInstanceState setContentView R.layout.main Log.d tag In the onCreate event public void onStart super.onStart Log.d.. onCreate event public void onStart super.onStart Log.d tag In the onStart event public void onRestart super.onRestart..
How to get an Android WakeLock to work? http://stackoverflow.com/questions/2039555/how-to-get-an-android-wakelock-to-work PowerManager.ON_AFTER_RELEASE My Tag mWakeLock.acquire then new CountDownTimer 1320000 200 public..
Background ListView becomes black when scrolling http://stackoverflow.com/questions/2833057/background-listview-becomes-black-when-scrolling improve this question Add an attribute on the ListView Tag android cacheColorHint #00000000 setting transparent color For..
Android file uploader with server-side php http://stackoverflow.com/questions/3204476/android-file-uploader-with-server-side-php public class Uploader extends Activity private String Tag UPLOADER private String urlString YOUR_ONLINE_PHP HttpURLConnection.. twoHyphens String boundary try CLIENT REQUEST Log.e Tag Inside second Method FileInputStream fileInputStream new FileInputStream.. exsistingFileName lineEnd dos.writeBytes lineEnd Log.e Tag Headers are written create a buffer of maximum size int bytesAvailable..
How to enable LogCat/Console in Eclipse for Android? http://stackoverflow.com/questions/3280051/how-to-enable-logcat-console-in-eclipse-for-android is working on Logcat.If you use that the Tag will be like System.out and Message will be your message. share..
How do I prevent an Android device from going to sleep programmatically? http://stackoverflow.com/questions/3723634/how-do-i-prevent-an-android-device-from-going-to-sleep-programmatically wl pm.newWakeLock PowerManager.SCREEN_DIM_WAKE_LOCK My Tag wl.acquire ..screen will stay on during this section.. wl.release..
Android: Launch activity from clickable text http://stackoverflow.com/questions/4025770/android-launch-activity-from-clickable-text for your own spans. Alternatively you could also define a Tag within the string that only you know of. i.e. And supply your.. tag handler to the Html.fromSource method. This way your TagHandler instance could do something like surround the tagged.. and make it clickable. However I would only recommend the TagHandler approach if you find yourself writing this type of code..
Android httpclient file upload data corruption and timeout issues http://stackoverflow.com/questions/4896949/android-httpclient-file-upload-data-corruption-and-timeout-issues android.util.Log public class Uploader private String Tag UPLOADER private String urlString YOUR_ONLINE_PHP HttpURLConnection.. twoHyphens String boundary try CLIENT REQUEST Log.e Tag Inside second Method FileInputStream fileInputStream new FileInputStream.. exsistingFileName lineEnd dos.writeBytes lineEnd Log.e Tag Headers are written create a buffer of maximum size int bytesAvailable..
http://stackoverflow.com/questions/6756768/turn-off-screen-on-android wl pm.newWakeLock PowerManager.PARTIAL_WAKE_LOCK My Tag When I read other posts on stackoverflow and else where they.. wl manager.newWakeLock PowerManager.PARTIAL_WAKE_LOCK Your Tag wl.acquire wl.release You will probably need this permission..
How to lock the screen of an android device http://stackoverflow.com/questions/6762671/how-to-lock-the-screen-of-an-android-device wl manager.newWakeLock PowerManager.PARTIAL_WAKE_LOCK Your Tag wl.acquire wl.release This permission is needed uses permission..
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 SQLiteOpenHelper private static String TAG DataBaseHelper Tag just for the LogCat window destination path location of our..
How to store android application data on sim card using NFC? http://stackoverflow.com/questions/9361764/how-to-store-android-application-data-on-sim-card-using-nfc is that it is very early days for NFC on mobile phones. Tag reading writing is simple enough but accessing the Secure Element..
SimpleCursorTreeAdapter and CursorLoader for ExpandableListView http://stackoverflow.com/questions/10611927/simplecursortreeadapter-and-cursorloader-for-expandablelistview extends ExpandableListFragment implements LoaderManager.LoaderCallbacks Cursor private final String DEBUG_TAG getClass .getSimpleName .toString private static final String CONTACTS_PROJECTION new String ContactsContract.Contacts._ID.. Loader Cursor onCreateLoader int id Bundle args This is called when a new Loader needs to be created. Log.d DEBUG_TAG onCreateLoader for loader_id id CursorLoader cl if id 1 child cursor Uri contactsUri ContactsContract.Data.CONTENT_URI String.. cl public void onLoadFinished Loader Cursor loader Cursor data Swap the new cursor in. int id loader.getId Log.d DEBUG_TAG onLoadFinished for loader_id id if id 1 child cursor if data.isClosed Log.d DEBUG_TAG data.getCount data.getCount try mAdapter.setChildrenCursor..
This Handler class should be static or leaks might occur: IncomingHandler http://stackoverflow.com/questions/11407943/this-handler-class-should-be-static-or-leaks-might-occur-incominghandler service to communicate with Main activity public class UDPListenerService extends Service private static final String TAG UDPListenerService private ThreadGroup myThreads new ThreadGroup UDPListenerServiceWorker private UDPListenerThread myThread..
Android: ListView elements with multiple clickable buttons http://stackoverflow.com/questions/1709166/android-listview-elements-with-multiple-clickable-buttons new OnItemClickListener @Override public void onItemClick AdapterView list View view int position long id Log.i TAG onListItemClick position However I don't want the whole item to be clickable but only the two buttons of each list element...
BitmapFactory OOM driving me nuts http://stackoverflow.com/questions/1955410/bitmapfactory-oom-driving-me-nuts 16 1024 if mMaxVmHeap 16 1024 mMaxNativeHeap 16 1024 else if mMaxVmHeap 24 1024 mMaxNativeHeap 24 1024 else Log.w TAG Unrecognized VM heap size mMaxVmHeap Then each time we need to call BitmapFactory we precede the call by a check of the..
Custom fonts and XML layouts (Android) http://stackoverflow.com/questions/2376250/custom-fonts-and-xml-layouts-android android.util.Log import android.widget.TextView public class TextViewPlus extends TextView private static final String TAG TextView public TextViewPlus Context context super context public TextViewPlus Context context AttributeSet attrs super.. Context ctx String asset Typeface tf null try tf Typeface.createFromAsset ctx.getAssets asset catch Exception e Log.e TAG Could not get typeface e.getMessage return false setTypeface tf return true attrs.xml in res values xml version 1.0 encoding..
How to load an ImageView by URL in Android? http://stackoverflow.com/questions/2471935/how-to-load-an-imageview-by-url-in-android options.inSampleSize 1 bitmap BitmapFactory.decodeByteArray data 0 data.length options catch IOException e Log.e TAG Could not load Bitmap from url finally closeStream in closeStream out return bitmap Then use the Imageview.setImageBitmap..
How to return a result (startActivityForResult) from a TabHost Activity? http://stackoverflow.com/questions/2497205/how-to-return-a-result-startactivityforresult-from-a-tabhost-activity resultCode Intent resultData synchronized this resultCode mResultCode resultData mResultData if Config.LOGV Log.v TAG Finishing self token mToken try if ActivityManagerNative.getDefault .finishActivity mToken resultCode resultData mFinished..
http://stackoverflow.com/questions/3815090/webview-and-html5-video the onError events for the video in order to get back to the web view. public void onCompletion MediaPlayer mp Log.d TAG Video completo a.setContentView R.layout.main WebView wb WebView a.findViewById R.id.webview a.initWebView But now I should..
Android - SMS Broadcast receiver http://stackoverflow.com/questions/4117701/android-sms-broadcast-receiver private static final String SMS_RECEIVED android.provider.Telephony.SMS_RECEIVED private static final String TAG SMSBroadcastReceiver @Override public void onReceive Context context Intent intent Log.i TAG Intent recieved intent.getAction.. static final String TAG SMSBroadcastReceiver @Override public void onReceive Context context Intent intent Log.i TAG Intent recieved intent.getAction if intent.getAction SMS_RECEIVED Bundle bundle intent.getExtras if bundle null Object.. for int i 0 i pdus.length i messages i SmsMessage.createFromPdu byte pdus i if messages.length 1 Log.i TAG Message recieved messages 0 .getMessageBody And the manifest file xml version 1.0 encoding utf 8 manifest xmlns android..
List Filter Custom Adapter dont give result http://stackoverflow.com/questions/8678163/list-filter-custom-adapter-dont-give-result protected void publishResults CharSequence constraint FilterResults results TODO Auto generated method stub Log.d TAG publishResults notifyDataSetChanged @Override protected FilterResults performFiltering CharSequence prefix FilterResults.. i.size else synchronized names results.values names results.count names.size return results Log.d TAG end getFilter return newFilter @Override public String getItem int position return super.getItem position @Override public..
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 import android.util.Log public class DataBaseHelper extends SQLiteOpenHelper private static String TAG DataBaseHelper Tag just for the LogCat window destination path location of our database on device private static String.. if mDataBaseExist this.getReadableDatabase this.close try Copy the database from assests copyDataBase Log.e TAG createDatabase database created catch IOException mIOException throw new Error ErrorCopyingDataBase Check that the database.. android.database.sqlite.SQLiteDatabase import android.util.Log public class TestAdapter protected static final String TAG DataAdapter private final Context mContext private SQLiteDatabase mDb private DataBaseHelper mDbHelper public TestAdapter..
How to draw a path on a map using kml file? http://stackoverflow.com/questions/3109158/how-to-draw-a-path-on-a-map-using-kml-file xmlns http www.opengis.net kml 2.2 Document name Paths name description Examples of paths. Note that the tessellate tag is by default set to 0. If you want to create tessellated lines they must be authored or edited directly in KML. description.. public class NavigationSaxHandler extends DefaultHandler Fields private boolean in_kmltag false private boolean in_placemarktag false private boolean in_nametag false private boolean in_descriptiontag false private.. NavigationSaxHandler extends DefaultHandler Fields private boolean in_kmltag false private boolean in_placemarktag false private boolean in_nametag false private boolean in_descriptiontag false private boolean in_geometrycollectiontag..
Android: How to copy files in 'assets' to sdcard? http://stackoverflow.com/questions/4447477/android-how-to-copy-files-in-assets-to-sdcard copyAssets AssetManager assetManager getAssets String files null try files assetManager.list catch IOException e Log.e tag Failed to get asset file list. e for String filename files InputStream in null OutputStream out null try in assetManager.open.. new FileOutputStream outFile copyFile in out in.close in null out.flush out.close out null catch IOException e Log.e tag Failed to copy asset file filename e private void copyFile InputStream in OutputStream out throws IOException byte buffer..
How to parse XML using the SAX parser http://stackoverflow.com/questions/4827344/how-to-parse-xml-using-the-sax-parser void end String body channel.setTitle body Same thing happens for the other elements of channel ex. On every item tag occurrence we create a new Item object. chanItem.setStartElementListener new StartElementListener public void start Attributes.. new StartElementListener public void start Attributes attributes item new Item On every item tag occurrence we add the current Item object to the Items container. chanItem.setEndElementListener new EndElementListener.. IOException e handle the exception return null Now that was a very quick example as you can see. The major advantage of using the android.sax SAX implementation is that you can define the structure of the XML you have to parse and then..
Android: How to declare global variables? http://stackoverflow.com/questions/708012/android-how-to-declare-global-variables to do this is to create your own subclass of android.app.Application and then specify that class in the application tag in your manifest. Now Android will automatically create an instance of that class and make it available for your entire.. . NOTE 1 Also as anticafe commented in order to correctly tie your Application override to your application a tag is necessary in the manifest file. Again see the Android docs for more info. An example application android name my.application.MyApp..
Android Activity Life Cycle - What are all these methods for? http://stackoverflow.com/questions/8515936/android-activity-life-cycle-what-are-all-these-methods-for import android.os.Bundle import android.util.Log public class MainActivity extends Activity String tag LifeCycleEvents Called when the activity is first created. @Override public void onCreate Bundle savedInstanceState super.onCreate.. public void onCreate Bundle savedInstanceState super.onCreate savedInstanceState setContentView R.layout.main Log.d tag In the onCreate event public void onStart super.onStart Log.d tag In the onStart event public void onRestart super.onRestart.. setContentView R.layout.main Log.d tag In the onCreate event public void onStart super.onStart Log.d tag In the onStart event public void onRestart super.onRestart Log.d tag In the onRestart event public void onResume super.onResume..
How to get an Android WakeLock to work? http://stackoverflow.com/questions/2039555/how-to-get-an-android-wakelock-to-work Context.POWER_SERVICE mWakeLock pm.newWakeLock PowerManager.SCREEN_DIM_WAKE_LOCK PowerManager.ON_AFTER_RELEASE My Tag mWakeLock.acquire then new CountDownTimer 1320000 200 public void onTick long millisUntilFinished I update a progress bar..
Background ListView becomes black when scrolling http://stackoverflow.com/questions/2833057/background-listview-becomes-black-when-scrolling
Android file uploader with server-side php http://stackoverflow.com/questions/3204476/android-file-uploader-with-server-side-php Yeah so I found the java side of things. This works so... yeah. public class Uploader extends Activity private String Tag UPLOADER private String urlString YOUR_ONLINE_PHP HttpURLConnection conn Called when the activity is first created. @Override.. sdcard uploader data testfile String lineEnd r n String twoHyphens String boundary try CLIENT REQUEST Log.e Tag Inside second Method FileInputStream fileInputStream new FileInputStream new File exsistingFileName open a URL connection.. Content Disposition post data name uploadedfile filename exsistingFileName lineEnd dos.writeBytes lineEnd Log.e Tag Headers are written create a buffer of maximum size int bytesAvailable fileInputStream.available int maxBufferSize 1000..
How to enable LogCat/Console in Eclipse for Android? http://stackoverflow.com/questions/3280051/how-to-enable-logcat-console-in-eclipse-for-android
How do I prevent an Android device from going to sleep programmatically? http://stackoverflow.com/questions/3723634/how-do-i-prevent-an-android-device-from-going-to-sleep-programmatically getSystemService Context.POWER_SERVICE PowerManager.WakeLock wl pm.newWakeLock PowerManager.SCREEN_DIM_WAKE_LOCK My Tag wl.acquire ..screen will stay on during this section.. wl.release There's also a table on this page that describes the different..
Android: Launch activity from clickable text http://stackoverflow.com/questions/4025770/android-launch-activity-from-clickable-text the underline spans placed by the Html.fromSource as markers for your own spans. Alternatively you could also define a Tag within the string that only you know of. i.e. And supply your own tag handler to the Html.fromSource method. This way your.. the string that only you know of. i.e. And supply your own tag handler to the Html.fromSource method. This way your TagHandler instance could do something like surround the tagged text with a specific color underline bold and make it clickable...
Android httpclient file upload data corruption and timeout issues http://stackoverflow.com/questions/4896949/android-httpclient-file-upload-data-corruption-and-timeout-issues import org.xml.sax.helpers.DefaultHandler import android.util.Log public class Uploader private String Tag UPLOADER private String urlString YOUR_ONLINE_PHP HttpURLConnection conn String exsistingFileName private void uploadImageData.. existingFileName String urlString String lineEnd r n String twoHyphens String boundary try CLIENT REQUEST Log.e Tag Inside second Method FileInputStream fileInputStream new FileInputStream new File exsistingFileName open a URL connection.. Content Disposition post data name uploadedfile filename exsistingFileName lineEnd dos.writeBytes lineEnd Log.e Tag Headers are written create a buffer of maximum size int bytesAvailable fileInputStream.available int maxBufferSize 1000..
http://stackoverflow.com/questions/6756768/turn-off-screen-on-android getSystemService Context.POWER_SERVICE PowerManager.WakeLock wl pm.newWakeLock PowerManager.PARTIAL_WAKE_LOCK My Tag When I read other posts on stackoverflow and else where they seem to tell me that PARTIAL_WAKE_LOCK will turn the screen.. int amountOfTime Choice 2 PowerManager.WakeLock wl manager.newWakeLock PowerManager.PARTIAL_WAKE_LOCK Your Tag wl.acquire wl.release You will probably need this permission too uses permission android name android.permission.WAKE_LOCK..
How to lock the screen of an android device http://stackoverflow.com/questions/6762671/how-to-lock-the-screen-of-an-android-device int amountOfTime Choice 2 PowerManager.WakeLock wl manager.newWakeLock PowerManager.PARTIAL_WAKE_LOCK Your Tag wl.acquire wl.release This permission is needed uses permission android name android.permission.WAKE_LOCK UPDATE The screenbrightness..
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 import android.util.Log public class DataBaseHelper extends SQLiteOpenHelper private static String TAG DataBaseHelper Tag just for the LogCat window destination path location of our database on device private static String DB_PATH private static..
How to store android application data on sim card using NFC? http://stackoverflow.com/questions/9361764/how-to-store-android-application-data-on-sim-card-using-nfc data to your SIM card using binary SMS messages. The problem is that it is very early days for NFC on mobile phones. Tag reading writing is simple enough but accessing the Secure Element is not. There are very limited trials of NFC SmartPhones..
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