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2014/10/16 ¤W¤È 08:13:17
android Programming Glossary: existsIs there any way to run Python on Android? http://stackoverflow.com/questions/101754/is-there-any-way-to-run-python-on-android nothing official about Python on Android but since Jython exists does anybody know a way to let the snake and the robot work..
Unable instantiate android.gms.maps.MapFragment http://stackoverflow.com/questions/13719263/unable-instantiate-android-gms-maps-mapfragment make sure class name exists is public and has an empty constructor that is public 12 05..
“Parse Error : There is a problem parsing the package” while installing Android application http://stackoverflow.com/questions/1492401/parse-error-there-is-a-problem-parsing-the-package-while-installing-android if you have same problem again. If the problem does not exists with the rebuilt version of your old code then you know it must..
http://stackoverflow.com/questions/15621936/whats-lazylist image from cache using url as key if bitmap null if image exists imageView.setImageBitmap bitmap dispaly iamge else downlaod..
ClassNotFoundException after ADT update http://stackoverflow.com/questions/16610190/classnotfoundexception-after-adt-update . I tried to create a new device but the problem still exists. Manifest xml version 1.0 encoding utf 8 manifest xmlns android..
Android intent filter for a particular file extension? http://stackoverflow.com/questions/1733195/android-intent-filter-for-a-particular-file-extension to match file extension does not work if a period exists elsewhere in the file name Finally according to the Android..
Quitting an application - is that frowned upon? http://stackoverflow.com/questions/2033914/quitting-an-application-is-that-frowned-upon we put a menu option in to kill it If no such option exists how does the user terminate the application Answer Romain Guy..
Change the background color of the options menu http://stackoverflow.com/questions/2944244/change-the-background-color-of-the-options-menu is the name of an internal Java class that exists in Android 3.2 and possibly beyond that may or may not exist..
Is AsyncTask really conceptually flawed or am I just missing something? http://stackoverflow.com/questions/3357477/is-asynctask-really-conceptually-flawed-or-am-i-just-missing-something weak and are cleared when no instance of a given component exists anymore. Still it is a complex workaround and requires to sub..
http://stackoverflow.com/questions/4322367/i-lost-my-keystore-file
How to get URI from an asset File? http://stackoverflow.com/questions/4820816/how-to-get-uri-from-an-asset-file new File assets mydemo.txt When I check if the file exists I see that file doesn't exist File f new File filepath if f.exists.. see that file doesn't exist File f new File filepath if f.exists true Log.e TAG Valid filepath else Log.e TAG InValid filepath..
getApplication() vs. getApplicationContext() http://stackoverflow.com/questions/5018545/getapplication-vs-getapplicationcontext with the test framework . Why does getApplicationContext exists in the first place getApplication is only available on the Activity..
Database not copying from assets http://stackoverflow.com/questions/5945196/database-not-copying-from-assets throws IOException First we check if the database already exists Method declared later boolean dbExist checkDataBase if dbExist.. checkDataBase if dbExist do nothing database already exists else By calling this method an empty database will be created.. each time you open the application. @return true if it exists false if it doesn't private boolean checkDataBase SQLiteDatabase..
Using AsyncTask to load Images in ListView http://stackoverflow.com/questions/7729133/using-asynctask-to-load-images-in-listview one ListView which can hold an image. It depends if image exists or not in SDCARD. Here my example code public class MainActivity.. .getAbsolutePath path if file.exists bitmap BitmapFactory.decodeFile file.getAbsolutePath return.. .getAbsolutePath path if file.exists bitmap BitmapFactory.decodeFile file.getAbsolutePath return..
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 void createDataBase throws IOException If database not exists copy it from the assets boolean mDataBaseExist checkDataBase.. new Error ErrorCopyingDataBase Check that the database exists here data data your package databases Da Name private boolean.. dbFile new File DB_PATH DB_NAME Log.v dbFile dbFile dbFile.exists return dbFile.exists Copy the database from assets private..
nullpointer exception raises when i click on the button http://stackoverflow.com/questions/11080994/nullpointer-exception-raises-when-i-click-on-the-button db int oldVersion int newVersion db.execSQL DROP TABLE IF EXISTS CERTIFICATES_TABLE onCreate db public void Reset mDbHelper.onUpgrade..
Android SQLite Example [closed] http://stackoverflow.com/questions/12015731/android-sqlite-example will destroy all old data database.execSQL DROP TABLE IF EXISTS MyEmployees onCreate database Now you can use this class..
What is a Full Android Database Helper class for an existing SQLite database? [closed] http://stackoverflow.com/questions/3548533/what-is-a-full-android-database-helper-class-for-an-existing-sqlite-database not actually work here db.execSQL CREATE TABLE IF NOT EXISTS android_metadata locale TEXT DEFAULT 'en_US' db.execSQL INSERT..
Best practices for exposing multiple tables using content providers in Android http://stackoverflow.com/questions/3814005/best-practices-for-exposing-multiple-tables-using-content-providers-in-android static final String DATABASE_CREATE1 CREATE TABLE IF NOT EXISTS DATABASE_TABLE1 _ID1 INTEGER PRIMARY KEY AUTOINCREMENT data.. static final String DATABASE_CREATE2 CREATE TABLE IF NOT EXISTS DATABASE_TABLE2 _ID2 INTEGER PRIMARY KEY AUTOINCREMENT data..
Multiple Table SQLite DB Adapter(s) in Android? http://stackoverflow.com/questions/4063510/multiple-table-sqlite-db-adapters-in-android destroy all old data NON NLS 1 db.execSQL DROP TABLE IF EXISTS usersinfo NON NLS 1 onCreate db public InfoDBAdapter Context..
Updating prepopulated database in Android http://stackoverflow.com/questions/4189956/updating-prepopulated-database-in-android which will destroy all old data db.execSQL DROP TABLE IF EXISTS DB_TABLE onCreate db public void createDataBase createDB private..
Android error - close() was never explicitly called on database http://stackoverflow.com/questions/4464892/android-error-close-was-never-explicitly-called-on-database will drop tables and recreate. db.execSQL DROP TABLE IF EXISTS TABLE_NAME onCreate db _ ___ Edited __ _ ____ This is what..
How can i clear a SQLite database each time i start my app http://stackoverflow.com/questions/4499420/how-can-i-clear-a-sqlite-database-each-time-i-start-my-app db int oldVersion int newVersion db.execSQL DROP TABLE IF EXISTS user db.execSQL DROP TABLE IF EXISTS permission onCreate db.. DROP TABLE IF EXISTS user db.execSQL DROP TABLE IF EXISTS permission onCreate db Constructor takes the context to allow..
Android - Sqlite database method undefined fot type http://stackoverflow.com/questions/4591765/android-sqlite-database-method-undefined-fot-type MY_DATABASE_NAME null myDB.execSQL CREATE TABLE IF NOT EXISTS MY_DATABASE_TABLE LastName VARCHAR FirstName VARCHAR Country..
sqlite example program in android [closed] http://stackoverflow.com/questions/4721732/sqlite-example-program-in-android db int oldVersion int newVersion db.execSQL DROP TABLE IF EXISTS TABLE_NAME onCreate db 3.Provider class package com.mypackage.quaddeals..
App Crashes On Startup Due To java.lang.IllegalArgumentException: column '_id' does not exist http://stackoverflow.com/questions/4974816/app-crashes-on-startup-due-to-java-lang-illegalargumentexception-column-id-d will drop tables and recreate. db.execSQL DROP TABLE IF EXISTS TABLE_NAME onCreate db android sqlite crash cursor share..
Convert Drawable to BLOB Datatype sqlite http://stackoverflow.com/questions/6341977/convert-drawable-to-blob-datatype-sqlite Context context sampleDB.execSQL CREATE TABLE IF NOT EXISTS Tablename app_id INT app_name VARCHAR 255 pname VARCHAR 255..
SQLiteOpenHelper - creating database on SD card http://stackoverflow.com/questions/7229450/sqliteopenhelper-creating-database-on-sd-card db int oldVersion int newVersion db.execSQL DROP TABLE IF EXISTS TABLE_NAME onCreate db And code of my main public class DatabaseExampleActivity..
How to create a Table with a column of type BLOB in a DBAdapter http://stackoverflow.com/questions/7516933/how-to-create-a-table-with-a-column-of-type-blob-in-a-dbadapter which will destroy all old data db.execSQL DROP TABLE IF EXISTS notes onCreate db Constructor takes the context to allow the..
Is it possible to apply primary key on the text fields in android database http://stackoverflow.com/questions/7591492/is-it-possible-to-apply-primary-key-on-the-text-fields-in-android-database which will destroy all old data db.execSQL DROP TABLE IF EXISTS contacts onCreate db opens the database public DBAdapter open..
Android table creation Failure (near “autoincrement”: syntax error)? http://stackoverflow.com/questions/7594541/android-table-creation-failure-near-autoincrement-syntax-error .Existing data will be lost. db.execSQL DROP TABLE IF EXISTS MY_TABLE db.execSQL DROP TABLE IF EXISTS MY_TABLE2 onCreate..
Android: upgrading DB version and adding new table http://stackoverflow.com/questions/8133597/android-upgrading-db-version-and-adding-new-table final String DATABASE_CREATE_color CREATE TABLE IF NOT EXISTS files color text incident_id text onCreate and onUpgrade as..
Is there any way to run Python on Android? http://stackoverflow.com/questions/101754/is-there-any-way-to-run-python-on-android and this platform has a nice Python API. Of course there is nothing official about Python on Android but since Jython exists does anybody know a way to let the snake and the robot work together python android ase android scripting share improve..
Unable instantiate android.gms.maps.MapFragment http://stackoverflow.com/questions/13719263/unable-instantiate-android-gms-maps-mapfragment InstantiationException Unable to instantiate fragment com.google.android.gms.maps.MapFragment make sure class name exists is public and has an empty constructor that is public 12 05 16 22 53.609 E AndroidRuntime 21623 at android.app.Fragment.instantiate..
“Parse Error : There is a problem parsing the package” while installing Android application http://stackoverflow.com/questions/1492401/parse-error-there-is-a-problem-parsing-the-package-while-installing-android start investigating 2 by rebuilding your old version and see if you have same problem again. If the problem does not exists with the rebuilt version of your old code then you know it must be something to do with your code. I hope that gets you..
http://stackoverflow.com/questions/15621936/whats-lazylist imageView url Bitmap bitmap memoryCache.get url get image from cache using url as key if bitmap null if image exists imageView.setImageBitmap bitmap dispaly iamge else downlaod image and dispaly. add to cache. queuePhoto url imageView imageView.setImageResource..
ClassNotFoundException after ADT update http://stackoverflow.com/questions/16610190/classnotfoundexception-after-adt-update Android project the LogCat shows a ClassNotFoundException . I tried to create a new device but the problem still exists. Manifest xml version 1.0 encoding utf 8 manifest xmlns android http schemas.android.com apk res android package com.example.myapp..
Android intent filter for a particular file extension? http://stackoverflow.com/questions/1733195/android-intent-filter-for-a-particular-file-extension detailed discussion of this issue and a workaround see pathPattern to match file extension does not work if a period exists elsewhere in the file name Finally according to the Android documentation both host and scheme attributes are required for..
Quitting an application - is that frowned upon? http://stackoverflow.com/questions/2033914/quitting-an-application-is-that-frowned-upon Does the user have a choice to kill the application unless we put a menu option in to kill it If no such option exists how does the user terminate the application Answer Romain Guy The user doesn't the system handles this automatically. That's..
Change the background color of the options menu http://stackoverflow.com/questions/2944244/change-the-background-color-of-the-options-menu inflater View view null com.android.internal.view.menu.IconMenuItemView is the name of an internal Java class that exists in Android 3.2 and possibly beyond that may or may not exist in other Android revs is the class whose instance we want..
Is AsyncTask really conceptually flawed or am I just missing something? http://stackoverflow.com/questions/3357477/is-asynctask-really-conceptually-flawed-or-am-i-just-missing-something work there. It also doesn't leak because the references are weak and are cleared when no instance of a given component exists anymore. Still it is a complex workaround and requires to sub class some of the Droid Fu library classes making this a pretty..
http://stackoverflow.com/questions/4322367/i-lost-my-keystore-file
How to get URI from an asset File? http://stackoverflow.com/questions/4820816/how-to-get-uri-from-an-asset-file trying to get the URI path for an asset file. uri Uri.fromFile new File assets mydemo.txt When I check if the file exists I see that file doesn't exist File f new File filepath if f.exists true Log.e TAG Valid filepath else Log.e TAG InValid.. new File assets mydemo.txt When I check if the file exists I see that file doesn't exist File f new File filepath if f.exists true Log.e TAG Valid filepath else Log.e TAG InValid filepath Can some one tell me how I can mention the absolute path for..
getApplication() vs. getApplicationContext() http://stackoverflow.com/questions/5018545/getapplication-vs-getapplicationcontext be the application instance which you obviously experienced with the test framework . Why does getApplicationContext exists in the first place getApplication is only available on the Activity class and in the Service class whereas getApplicationContext..
Database not copying from assets http://stackoverflow.com/questions/5945196/database-not-copying-from-assets it with your own database. public void createDataBase throws IOException First we check if the database already exists Method declared later boolean dbExist checkDataBase if dbExist do nothing database already exists else By calling this method.. the database already exists Method declared later boolean dbExist checkDataBase if dbExist do nothing database already exists else By calling this method an empty database will be created into the default system path of your application so we are.. if the database already exist to avoid re copying the file each time you open the application. @return true if it exists false if it doesn't private boolean checkDataBase SQLiteDatabase checkDB null try String myPath DB_PATH DB_NAME checkDB..
Using AsyncTask to load Images in ListView http://stackoverflow.com/questions/7729133/using-asynctask-to-load-images-in-listview AsyncTask to load Images in ListView I have one ListView which can hold an image. It depends if image exists or not in SDCARD. Here my example code public class MainActivity extends Activity ListView mListView @Override protected.. Bitmap bitmap null File file new File Environment.getExternalStorageDirectory .getAbsolutePath path if file.exists bitmap BitmapFactory.decodeFile file.getAbsolutePath return bitmap @Override protected void onPostExecute Bitmap result.. params Bitmap bitmap null File file new File Environment.getExternalStorageDirectory .getAbsolutePath path if file.exists bitmap BitmapFactory.decodeFile file.getAbsolutePath return bitmap @Override protected void onPostExecute Bitmap result..
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 context.getPackageName databases this.mContext context public void createDataBase throws IOException If database not exists copy it from the assets boolean mDataBaseExist checkDataBase if mDataBaseExist this.getReadableDatabase this.close try.. database created catch IOException mIOException throw new Error ErrorCopyingDataBase Check that the database exists here data data your package databases Da Name private boolean checkDataBase File dbFile new File DB_PATH DB_NAME Log.v.. databases 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..
nullpointer exception raises when i click on the button http://stackoverflow.com/questions/11080994/nullpointer-exception-raises-when-i-click-on-the-button public void onUpgrade SQLiteDatabase db int oldVersion int newVersion db.execSQL DROP TABLE IF EXISTS CERTIFICATES_TABLE onCreate db public void Reset mDbHelper.onUpgrade this.mDb 1 1 public DataManipulator Context ctx mCtx..
Android SQLite Example [closed] http://stackoverflow.com/questions/12015731/android-sqlite-example database from version oldVersion to newVersion which will destroy all old data database.execSQL DROP TABLE IF EXISTS MyEmployees onCreate database Now you can use this class as below public class MyDB private MyDatabaseHelper dbHelper..
What is a Full Android Database Helper class for an existing SQLite database? [closed] http://stackoverflow.com/questions/3548533/what-is-a-full-android-database-helper-class-for-an-existing-sqlite-database your database has this table already created in it this does not actually work here db.execSQL CREATE TABLE IF NOT EXISTS android_metadata locale TEXT DEFAULT 'en_US' db.execSQL INSERT INTO android_metadata VALUES 'en_US' this.getReadableDatabase..
Best practices for exposing multiple tables using content providers in Android http://stackoverflow.com/questions/3814005/best-practices-for-exposing-multiple-tables-using-content-providers-in-android sample2 private static final int DATABASE_VERSION 1 private static final String DATABASE_CREATE1 CREATE TABLE IF NOT EXISTS DATABASE_TABLE1 _ID1 INTEGER PRIMARY KEY AUTOINCREMENT data text stuff text private static final String DATABASE_CREATE2.. PRIMARY KEY AUTOINCREMENT data text stuff text private static final String DATABASE_CREATE2 CREATE TABLE IF NOT EXISTS DATABASE_TABLE2 _ID2 INTEGER PRIMARY KEY AUTOINCREMENT data text stuff text Don't forget to add the second DATABASE_CREATE..
Multiple Table SQLite DB Adapter(s) in Android? http://stackoverflow.com/questions/4063510/multiple-table-sqlite-db-adapters-in-android oldVersion to NON NLS 1 NON NLS 2 newVersion which will destroy all old data NON NLS 1 db.execSQL DROP TABLE IF EXISTS usersinfo NON NLS 1 onCreate db public InfoDBAdapter Context ctx this.mCtx ctx public InfoDBAdapter open throws SQLException..
Updating prepopulated database in Android http://stackoverflow.com/questions/4189956/updating-prepopulated-database-in-android Log.w TAG Upgrading DB from version oldVersion to newVersion which will destroy all old data db.execSQL DROP TABLE IF EXISTS DB_TABLE onCreate db public void createDataBase createDB private void createDB boolean dbExist dbExists if dbExist copyDataBase..
Android error - close() was never explicitly called on database http://stackoverflow.com/questions/4464892/android-error-close-was-never-explicitly-called-on-database newVersion Log.w RatedCalls Database Upgrading database this will drop tables and recreate. db.execSQL DROP TABLE IF EXISTS TABLE_NAME onCreate db _ ___ Edited __ _ ____ This is what I get now. When I make a new call the Logcat returns this. 12..
How can i clear a SQLite database each time i start my app http://stackoverflow.com/questions/4499420/how-can-i-clear-a-sqlite-database-each-time-i-start-my-app @Override public void onUpgrade SQLiteDatabase db int oldVersion int newVersion db.execSQL DROP TABLE IF EXISTS user db.execSQL DROP TABLE IF EXISTS permission onCreate db Constructor takes the context to allow the database to be.. SQLiteDatabase db int oldVersion int newVersion db.execSQL DROP TABLE IF EXISTS user db.execSQL DROP TABLE IF EXISTS permission onCreate db Constructor takes the context to allow the database to be opened created @param ctx the Context..
Android - Sqlite database method undefined fot type http://stackoverflow.com/questions/4591765/android-sqlite-database-method-undefined-fot-type MY_DATABASE_NAME 1 MODE_PRIVATE null myDB this.openDatabase MY_DATABASE_NAME null myDB.execSQL CREATE TABLE IF NOT EXISTS MY_DATABASE_TABLE LastName VARCHAR FirstName VARCHAR Country VARCHAR Age INT 3 Button btn Button findViewById R.id.confirm..
sqlite example program in android [closed] http://stackoverflow.com/questions/4721732/sqlite-example-program-in-android created @Override public void onUpgrade SQLiteDatabase db int oldVersion int newVersion db.execSQL DROP TABLE IF EXISTS TABLE_NAME onCreate db 3.Provider class package com.mypackage.quaddeals import static android.provider.BaseColumns._ID..
App Crashes On Startup Due To java.lang.IllegalArgumentException: column '_id' does not exist http://stackoverflow.com/questions/4974816/app-crashes-on-startup-due-to-java-lang-illegalargumentexception-column-id-d int newVersion Log.w Example Upgrading database this will drop tables and recreate. db.execSQL DROP TABLE IF EXISTS TABLE_NAME onCreate db android sqlite crash cursor share improve this question I had a similar issue I think it's..
Convert Drawable to BLOB Datatype sqlite http://stackoverflow.com/questions/6341977/convert-drawable-to-blob-datatype-sqlite null public void createTable String Tablename Context context sampleDB.execSQL CREATE TABLE IF NOT EXISTS Tablename app_id INT app_name VARCHAR 255 pname VARCHAR 255 version_name VARCHAR 25 versionCode INT icon BLOB date DATE..
SQLiteOpenHelper - creating database on SD card http://stackoverflow.com/questions/7229450/sqliteopenhelper-creating-database-on-sd-card INT NOT NULL @Override public void onUpgrade SQLiteDatabase db int oldVersion int newVersion db.execSQL DROP TABLE IF EXISTS TABLE_NAME onCreate db And code of my main public class DatabaseExampleActivity extends Activity private DatabaseDefinition..
How to create a Table with a column of type BLOB in a DBAdapter http://stackoverflow.com/questions/7516933/how-to-create-a-table-with-a-column-of-type-blob-in-a-dbadapter TAG Upgrading database from version oldVersion to newVersion which will destroy all old data db.execSQL DROP TABLE IF EXISTS notes onCreate db Constructor takes the context to allow the database to be opened created @param ctx the Context within..
Is it possible to apply primary key on the text fields in android database http://stackoverflow.com/questions/7591492/is-it-possible-to-apply-primary-key-on-the-text-fields-in-android-database TAG Upgrading database from version oldVersion to newVersion which will destroy all old data db.execSQL DROP TABLE IF EXISTS contacts onCreate db opens the database public DBAdapter open throws SQLException db DBHelper.getWritableDatabase return..
Android table creation Failure (near “autoincrement”: syntax error)? http://stackoverflow.com/questions/7594541/android-table-creation-failure-near-autoincrement-syntax-error
Android: upgrading DB version and adding new table http://stackoverflow.com/questions/8133597/android-upgrading-db-version-and-adding-new-table 2 and Added string to create table private static final String DATABASE_CREATE_color CREATE TABLE IF NOT EXISTS files color text incident_id text onCreate and onUpgrade as below @Override public void onCreate SQLiteDatabase database..
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