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  • Android AsyncTask testing problem with Android Test Framework

    - by Vlad
    I have a very simple AsyncTask implementation example and have problem to test it using Android JUnit framework. It works just fine when I instantiate and execute it in normal application. However when it's executed from any of Android Testing framework classes (i.e. AndroidTestCase, ActivityUnitTestCase, ActivityInstrumentationTestCase2 etc) it behaves sarngely: - It executes doInBackground() method correctly - However it doesn't invokes any of its notification methods (onPostExecute(), onProgressUpdate(), etc) -- just silently ignores them whitout showing any errors. This is very simple AsyncTask example package kroz.andcookbook.threads.asynctask; import android.os.AsyncTask; import android.util.Log; import android.widget.ProgressBar; import android.widget.Toast; public class AsyncTaskDemo extends AsyncTask<Integer, Integer, String> { AsyncTaskDemoActivity _parentActivity; int _counter; int _maxCount; public AsyncTaskDemo(AsyncTaskDemoActivity asyncTaskDemoActivity) { _parentActivity = asyncTaskDemoActivity; } @Override protected void onPreExecute() { super.onPreExecute(); _parentActivity._progressBar.setVisibility(ProgressBar.VISIBLE); _parentActivity._progressBar.invalidate(); } @Override protected String doInBackground(Integer... params) { _maxCount = params[0]; for (_counter = 0; _counter <= _maxCount; _counter++) { try { Thread.sleep(1000); publishProgress(_counter); } catch (InterruptedException e) { // Ignore } } } @Override protected void onProgressUpdate(Integer... values) { super.onProgressUpdate(values); int progress = values[0]; String progressStr = "Counting " + progress + " out of " + _maxCount; _parentActivity._textView.setText(progressStr); _parentActivity._textView.invalidate(); } @Override protected void onPostExecute(String result) { super.onPostExecute(result); _parentActivity._progressBar.setVisibility(ProgressBar.INVISIBLE); _parentActivity._progressBar.invalidate(); } @Override protected void onCancelled() { super.onCancelled(); _parentActivity._textView.setText("Request to cancel AsyncTask"); } } This is a test case. Here AsyncTaskDemoActivity is a very simple Activity providing UI for testing AsyncTask in mode: package kroz.andcookbook.test.threads.asynctask; import java.util.concurrent.ExecutionException; import kroz.andcookbook.R; import kroz.andcookbook.threads.asynctask.AsyncTaskDemo; import kroz.andcookbook.threads.asynctask.AsyncTaskDemoActivity; import android.content.Intent; import android.test.ActivityUnitTestCase; import android.widget.Button; public class AsyncTaskDemoTest2 extends ActivityUnitTestCase<AsyncTaskDemoActivity> { AsyncTaskDemo _atask; private Intent _startIntent; public AsyncTaskDemoTest2() { super(AsyncTaskDemoActivity.class); } protected void setUp() throws Exception { super.setUp(); _startIntent = new Intent(Intent.ACTION_MAIN); } protected void tearDown() throws Exception { super.tearDown(); } public final void testExecute() { startActivity(_startIntent, null, null); Button btnStart = (Button) getActivity().findViewById(R.id.Button01); btnStart.performClick(); assertNotNull(getActivity()); } } All this code is working just fine, except the fact that AsynTask doesn't invoke it's notification methods when executed by whithin Android Testing Framework. Any ideas?

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  • How load WebView with another URL when navigated through tab bar viewController

    - by TechFusion
    Hello, I have created window based application, root controller as Tab bar controller. WebView is being loaded in Tab bar interfaced ViewController's View.WebView is created using IB.WebView object declared in ViewController as per below. //ViewController.h @interface ViewController:UIViewController{ IBOutlet UIWebview *Webview; } @property(nonatomic,retain)IBOutlet UIWebview *Webview; @end I am calling [WebView loadrequest] method in -viewDidLoad method and stopLoading will be called in -viewWillDisappear method. I am again reload it in -viewWillAppear:animated method to load it again when tab bar is pressed. //ViewController.m @implementation viewcontroller @synthesize Webview; -(void)viewDidLoad{ [super viewDidLoad]; [self.Webview loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"www.apple.com"]]]; } -(void)viewWillAppear:(BOOL)animated{ [super viewWillAppear:animated]; [self.Webview reload]; } -(void)viewWillDisappear:(BOOL)animated{ [super viewWillDisappear:animated]; [self.Webview stopLoading]; } I am releasing WebView in -ViewDidUnload method -(void)viewDidUnload{ [super viewDidUnload]; [Webview release]; } -(void)dealloc{ [Webview release]; [super dealloc]; } Does Webview released correctly ? Here how to kill connection with URL when ViewWillDisappear method called ? How to load View with Different URL then it's loaded in -viewDidLoad method when ViewController interfaced tab is pressed ? Means if naviagated from one tab to another that ViewController interface tab which has WebView should load request with another URL. Does it correct to call [self.Webview loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"www.stackoverflow.com"]]]; this method again in -viewWillAppear:animated method to load with another URL ? Thanks,

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  • Change ObjectChoiceField Color not working on Blackberry OS 5.0

    - by Ari R. Fikri
    I want to create a custom ObjectChoiceField, the expected behavior is if the data change then upon leavinge the focus the font color will change. I have succeded in BB OS upto 4.7 but when tested on simulator and on real device with BB OS 5.0 the color won't change. This is my class : public class MyObjectChoiceField extends ObjectChoiceField { int color; Object oldValue, newValue; boolean isChanged; public MyObjectChoiceField(){ super(); oldValue = new Object(); newValue = new Object(); } public MyObjectChoiceField(int color, String label, String[] choices, int intP, long styleP){ super(label, choices, intP, styleP); this.color = color; } public void onUnfocus(){ if (getSelectedIndex() != -1){ newValue = getChoice(getSelectedIndex()); if (oldValue != newValue){ isChanged = true; invalidate(); } } super.onUnfocus(); } public void onFocus(int directionInt){ if (getSelectedIndex() != -1) oldValue = getChoice(getSelectedIndex()); super.onFocus(directionInt); } public void paint(Graphics g){ if (isChanged){ g.setColor(this.color); } super.paint(g); } What should I do to make this also work on BB OS 5.0. FYI : The ObjectChoiceField in BB 5.0 is look like a button with a triangle point down in the right side, which is different with BB OS 4.7.

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  • using Unity Android In a sub view and add style and actionbar

    - by aeroxr1
    I exported a simple animation from Unity3D (version 4.5) in android project. With eclipse I modified the manifest and added another activity. In this activity I put a button that it makes start the animation,and this is the result. The action bar appear in the main activity but it doesn't in the unity's activity :( This is the unity's activity's code : package com.rabidgremlin.tut.redcube; import android.app.NativeActivity; import android.content.res.Configuration; import android.graphics.PixelFormat; import android.os.Bundle; import android.view.KeyEvent; import android.view.MotionEvent; import android.view.View; import android.view.ViewGroup; import android.view.Window; import android.view.WindowManager; import com.unity3d.player.UnityPlayer; public class UnityPlayerNativeActivity extends NativeActivity { protected UnityPlayer mUnityPlayer; // don't change the name of this variable; referenced from native code // Setup activity layout @Override protected void onCreate (Bundle savedInstanceState) { //requestWindowFeature(Window.FEATURE_NO_TITLE); super.onCreate(savedInstanceState); getWindow().takeSurface(null); //setTheme(android.R.style.Theme_NoTitleBar_Fullscreen); getWindow().setFormat(PixelFormat.RGB_565); mUnityPlayer = new UnityPlayer(this); /*if (mUnityPlayer.getSettings ().getBoolean ("hide_status_bar", true)) getWindow ().setFlags (WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); */ setContentView(mUnityPlayer); mUnityPlayer.requestFocus(); } // Quit Unity @Override protected void onDestroy () { mUnityPlayer.quit(); super.onDestroy(); } // Pause Unity @Override protected void onPause() { super.onPause(); mUnityPlayer.pause(); } // eliminiamo questa onResume() e proviamo a modificare la onResume() // Resume Unity @Override protected void onResume() { super.onResume(); mUnityPlayer.resume(); } // inseriamo qualche modifica qui // This ensures the layout will be correct. @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); mUnityPlayer.configurationChanged(newConfig); } // Notify Unity of the focus change. @Override public void onWindowFocusChanged(boolean hasFocus) { super.onWindowFocusChanged(hasFocus); mUnityPlayer.windowFocusChanged(hasFocus); } // For some reason the multiple keyevent type is not supported by the ndk. // Force event injection by overriding dispatchKeyEvent(). @Override public boolean dispatchKeyEvent(KeyEvent event) { if (event.getAction() == KeyEvent.ACTION_MULTIPLE) return mUnityPlayer.injectEvent(event); return super.dispatchKeyEvent(event); } // Pass any events not handled by (unfocused) views straight to UnityPlayer @Override public boolean onKeyUp(int keyCode, KeyEvent event) { return mUnityPlayer.injectEvent(event); } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { return mUnityPlayer.injectEvent(event); } @Override public boolean onTouchEvent(MotionEvent event) { return mUnityPlayer.injectEvent(event); } /*API12*/ public boolean onGenericMotionEvent(MotionEvent event) { return mUnityPlayer.injectEvent(event); } } How can I add the action bar and the style of the first activity to unity's animation activity ?

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  • Android customizing ViewFlipper...

    - by wearysamurai
    So I'm having pretty much exactly the problem described here: http://code.google.com/p/android/issues/detail?id=6191 and until the ViewFlipper issue in 2.1 and 2.2 has been resolved, I'm attempting to customize my own ViewFlipper in the manner described: @Override protected void onDetachedFromWindow() { try { super.onDetachedFromWindow(); } catch (IllegalArgumentException e) { // Call stopFlipping() in order to kick off updateRunning() stopFlipping(); } } But I've never done this sort of thing before and am hoping to get a little guidance (as my own efforts are coming up short). Here's what I have so far. FixedFlipper.java: import android.content.Context; import android.util.AttributeSet; import android.widget.ViewFlipper; public class FixedFlipper extends ViewFlipper{ public FixedFlipper(Context context){ super(context); } public FixedFlipper(Context context, AttributeSet attrs){ super(context, attrs); } @Override protected void onDetachedFromWindow(){ try{ super.onDetachedFromWindow(); }catch(Exception e){ super.stopFlipping(); } } } main.xml: <com.site.TestApp.FixedFlipper style="@style/body" android:id="@+id/flipper"> ... </com.site.TestApp.FixedFlipper> And in my activity, I invoke it like so: FixedFlipper flipper = (FixedFlipper)findViewById(R.id.flipper); It seems like it should be pretty straightforward, but I keep getting this: Binary XML file line #4: Error inflating class com.site.TestApp.FixedFlipper I appreciate any suggestions. I've been chasing my tail for hours trying to figure out what piece of the puzzle I'm missing.

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  • Android Custom View Constructor

    - by Mitch
    I'm learning about using Custom Views from the following: http://developer.android.com/guide/topics/ui/custom-components.html#modifying The description says: Class Initialization As always, the super is called first. Furthermore, this is not a default constructor, but a parameterized one. The EditText is created with these parameters when it is inflated from an XML layout file, thus, our constructor needs to both take them and pass them to the superclass constructor as well. Is there a better description? I've been trying to figure out what the constructor(s) should look like and I've come up with 4 possible choices (see example at end of post). I'm not sure what these 4 choices do (or don't do), why I should implement them, or what the parameters mean. Is there a description of these? Thanks. Mitch public MyCustomView() { super(); } public MyCustomView(Context context) { super(context); } public MyCustomView(Context context, AttributeSet attrs) { super(context, attrs); } public MyCustomView(Context context, AttributeSet attrs, Map params) { super(context, attrs, params); }

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  • Why can't I initialize a class through a setter?

    - by Rob emenaker
    If I have a custom class called Tires: #import <Foundation/Foundation.h> @interface Tires : NSObject { @private NSString *brand; int size; } @property (nonatomic,copy) NSString *brand; @property int size; - (id)init; - (void)dealloc; @end ============================================= #import "Tires.h" @implementation Tires @synthesize brand, size; - (id)init { if (self = [super init]) { [self setBrand:[[NSString alloc] initWithString:@""]]; [self setSize:0]; } return self; } - (void)dealloc { [super dealloc]; [brand release]; } @end And I synthesize a setter and getter in my View Controller: #import <UIKit/UIKit.h> #import "Tires.h" @interface testViewController : UIViewController { Tires *frontLeft, *frontRight, *backleft, *backRight; } @property (nonatomic,copy) Tires *frontLeft, *frontRight, *backleft, *backRight; @end ==================================== #import "testViewController.h" @implementation testViewController @synthesize frontLeft, frontRight, backleft, backRight; - (void)viewDidLoad { [super viewDidLoad]; [self setFrontLeft:[[Tires alloc] init]]; } - (void)dealloc { [super dealloc]; } @end It dies after [self setFrontLeft:[[Tires alloc] init]] comes back. It compiles just fine and when I run the debugger it actually gets all the way through the init method on Tires, but once it comes back it just dies and the view never appears. However if I change the viewDidLoad method to: - (void)viewDidLoad { [super viewDidLoad]; frontLeft = [[Tires alloc] init]; } It works just fine. I could just ditch the setter and access the frontLeft variable directly, but I was under the impression I should use setters and getters as much as possible and logically it seems like the setFrontLeft method should work. This brings up an additional question that my coworkers keep asking in these regards (we are all new to Objective-C); why use a setter and getter at all if you are in the same class as those setters and getters.

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  • QueryReadStore loads JSON into DataGrid, but JsonRestStore does not (from the same source)

    - by labratmatt
    I'm building a Dojo DataGrid from JSON data provided by my REST interface. The DataGrid loads the data fine using a QueryReadStore, but doesn't seem to work with the same same data piped into a JsonRestStore. I'm using the following Dojo libs with Dojo 1.4.1: dojo.require("dojox.data.JsonRestStore"); dojo.require("dojox.grid.DataGrid"); dojo.require("dojox.data.QueryReadStore"); dojo.require("dojo.parser"); I declare my stores in the following manner: var storeJRS = new dojox.data.JsonRestStore({target:"api/collaborations.php/1", idAttribute: 'items[].id'}); var storeQRS = new dojox.data.QueryReadStore({url:"api/collaborations.php/1", requestMethod:"get"}); I create my grid layout like this: var gridLayout = [ new dojox.grid.cells.RowIndex({ name: "Row #", width: 5, styles: "text-align: left;" }), { name: "Name", field: "name", styles: "text-align:right;", width:20 }, { name: "Description", field: "description", width:30 } ]; I create my DataGrid as follows: The above works, but if I use QueryReadStore as my store, the grid is created with the headers (Name, Description), but it isn't populated with any rows: <div dojoType="dojox.grid.DataGrid" jsid="grid3" store="storeQRS" structure="gridLayout" style="height:500px; width:1000px;"></div> Using FireBug, I can see that QueryReadStore is getting my JSON data from my REST interface. It looks like the following: {"numRows":6,"items":[{"name":"My Super Cool Collab","description":"This is for all the super cool people in the super cool group","id":1},{"name":"My Other Super Cool","description":"This is for all the other super cool people","id":3},{"name":"This is another coll","description":"This is just some other collab","id":4},{"name":"some new collab","description":"this is a new collab","id":5},{"name":"yet another new coll","description":"uh huh","id":6},{"name":"asdf","description":"asdf","id":7}]} Any ideas? Thanks.

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  • NullPointerException when linking to Service that uses ContentProvider

    - by Danny Chia
    H.i everyone, this is my first post here! Anyways, I'm trying to write a "todo list" application. It stores the data in a ContentProvider, which is accessed via a Service. However, my app crashes at launch. My code is below: Manifest file: <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.examples.todolist" android:versionCode="1" android:versionName="1.0"> <application android:icon="@drawable/icon" android:label="@string/app_name" android:debuggable="True"> <activity android:name=".ToDoList" android:label="@string/app_name" android:theme="@style/ToDoTheme"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <service android:name="TodoService"/> <provider android:name="TodoProvider" android:authorities="com.examples.provider.todolist" /> </application> <uses-sdk android:minSdkVersion="7" /> </manifest> ToDoList.java: package com.examples.todolist; import com.examples.todolist.TodoService.LocalBinder; import java.util.ArrayList; import java.util.Date; import android.app.Activity; import android.content.SharedPreferences; import android.database.Cursor; import android.os.AsyncTask; import android.os.Bundle; import android.view.ContextMenu; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.ServiceConnection; import android.os.IBinder; import android.view.KeyEvent; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.View.OnKeyListener; import android.widget.AdapterView; import android.widget.EditText; import android.widget.ListView; import android.widget.Toast; public class ToDoList extends Activity { static final private int ADD_NEW_TODO = Menu.FIRST; static final private int REMOVE_TODO = Menu.FIRST + 1; private static final String TEXT_ENTRY_KEY = "TEXT_ENTRY_KEY"; private static final String ADDING_ITEM_KEY = "ADDING_ITEM_KEY"; private static final String SELECTED_INDEX_KEY = "SELECTED_INDEX_KEY"; private boolean addingNew = false; private ArrayList<ToDoItem> todoItems; private ListView myListView; private EditText myEditText; private ToDoItemAdapter aa; int entries = 0; int notifs = 0; //ToDoDBAdapter toDoDBAdapter; Cursor toDoListCursor; TodoService mService; boolean mBound = false; /** Called when the activity is first created. */ public void onCreate(Bundle icicle) { super.onCreate(icicle); setContentView(R.layout.main); myListView = (ListView)findViewById(R.id.myListView); myEditText = (EditText)findViewById(R.id.myEditText); todoItems = new ArrayList<ToDoItem>(); int resID = R.layout.todolist_item; aa = new ToDoItemAdapter(this, resID, todoItems); myListView.setAdapter(aa); myEditText.setOnKeyListener(new OnKeyListener() { public boolean onKey(View v, int keyCode, KeyEvent event) { if (event.getAction() == KeyEvent.ACTION_DOWN) if (keyCode == KeyEvent.KEYCODE_DPAD_CENTER) { ToDoItem newItem = new ToDoItem(myEditText.getText().toString(), 0); mService.insertTask(newItem); updateArray(); myEditText.setText(""); entries++; Toast.makeText(ToDoList.this, "Entry added", Toast.LENGTH_SHORT).show(); aa.notifyDataSetChanged(); cancelAdd(); return true; } return false; } }); registerForContextMenu(myListView); restoreUIState(); populateTodoList(); } private void populateTodoList() { // Get all the todo list items from the database. toDoListCursor = mService. getAllToDoItemsCursor(); startManagingCursor(toDoListCursor); // Update the array. updateArray(); Toast.makeText(this, "Todo list retrieved", Toast.LENGTH_SHORT).show(); } private void updateArray() { toDoListCursor.requery(); todoItems.clear(); if (toDoListCursor.moveToFirst()) do { String task = toDoListCursor.getString(toDoListCursor.getColumnIndex(ToDoDBAdapter.KEY_TASK)); long created = toDoListCursor.getLong(toDoListCursor.getColumnIndex(ToDoDBAdapter.KEY_CREATION_DATE)); int taskid = toDoListCursor.getInt(toDoListCursor.getColumnIndex(ToDoDBAdapter.KEY_ID)); ToDoItem newItem = new ToDoItem(task, new Date(created), taskid); todoItems.add(0, newItem); } while(toDoListCursor.moveToNext()); aa.notifyDataSetChanged(); } private void restoreUIState() { // Get the activity preferences object. SharedPreferences settings = getPreferences(0); // Read the UI state values, specifying default values. String text = settings.getString(TEXT_ENTRY_KEY, ""); Boolean adding = settings.getBoolean(ADDING_ITEM_KEY, false); // Restore the UI to the previous state. if (adding) { addNewItem(); myEditText.setText(text); } } @Override public void onSaveInstanceState(Bundle outState) { outState.putInt(SELECTED_INDEX_KEY, myListView.getSelectedItemPosition()); super.onSaveInstanceState(outState); } @Override public void onRestoreInstanceState(Bundle savedInstanceState) { int pos = -1; if (savedInstanceState != null) if (savedInstanceState.containsKey(SELECTED_INDEX_KEY)) pos = savedInstanceState.getInt(SELECTED_INDEX_KEY, -1); myListView.setSelection(pos); } @Override protected void onPause() { super.onPause(); // Get the activity preferences object. SharedPreferences uiState = getPreferences(0); // Get the preferences editor. SharedPreferences.Editor editor = uiState.edit(); // Add the UI state preference values. editor.putString(TEXT_ENTRY_KEY, myEditText.getText().toString()); editor.putBoolean(ADDING_ITEM_KEY, addingNew); // Commit the preferences. editor.commit(); } @Override public boolean onCreateOptionsMenu(Menu menu) { super.onCreateOptionsMenu(menu); // Create and add new menu items. MenuItem itemAdd = menu.add(0, ADD_NEW_TODO, Menu.NONE, R.string.add_new); MenuItem itemRem = menu.add(0, REMOVE_TODO, Menu.NONE, R.string.remove); // Assign icons itemAdd.setIcon(R.drawable.add_new_item); itemRem.setIcon(R.drawable.remove_item); // Allocate shortcuts to each of them. itemAdd.setShortcut('0', 'a'); itemRem.setShortcut('1', 'r'); return true; } @Override public boolean onPrepareOptionsMenu(Menu menu) { super.onPrepareOptionsMenu(menu); int idx = myListView.getSelectedItemPosition(); String removeTitle = getString(addingNew ? R.string.cancel : R.string.remove); MenuItem removeItem = menu.findItem(REMOVE_TODO); removeItem.setTitle(removeTitle); removeItem.setVisible(addingNew || idx > -1); return true; } @Override public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) { super.onCreateContextMenu(menu, v, menuInfo); menu.setHeaderTitle("Selected To Do Item"); menu.add(0, REMOVE_TODO, Menu.NONE, R.string.remove); } @Override public boolean onOptionsItemSelected(MenuItem item) { super.onOptionsItemSelected(item); int index = myListView.getSelectedItemPosition(); switch (item.getItemId()) { case (REMOVE_TODO): { if (addingNew) { cancelAdd(); } else { removeItem(index); } return true; } case (ADD_NEW_TODO): { addNewItem(); return true; } } return false; } @Override public boolean onContextItemSelected(MenuItem item) { super.onContextItemSelected(item); switch (item.getItemId()) { case (REMOVE_TODO): { AdapterView.AdapterContextMenuInfo menuInfo; menuInfo =(AdapterView.AdapterContextMenuInfo)item.getMenuInfo(); int index = menuInfo.position; removeItem(index); return true; } } return false; } @Override public void onDestroy() { super.onDestroy(); } private void cancelAdd() { addingNew = false; myEditText.setVisibility(View.GONE); } private void addNewItem() { addingNew = true; myEditText.setVisibility(View.VISIBLE); myEditText.requestFocus(); } private void removeItem(int _index) { // Items are added to the listview in reverse order, so invert the index. //toDoDBAdapter.removeTask(todoItems.size()-_index); ToDoItem item = todoItems.get(_index); final long selectedId = item.getTaskId(); mService.removeTask(selectedId); entries--; Toast.makeText(this, "Entry deleted", Toast.LENGTH_SHORT).show(); updateArray(); } @Override protected void onStart() { super.onStart(); Intent intent = new Intent(this, TodoService.class); bindService(intent, mConnection, Context.BIND_AUTO_CREATE); } @Override protected void onStop() { super.onStop(); // Unbind from the service if (mBound) { unbindService(mConnection); mBound = false; } } private ServiceConnection mConnection = new ServiceConnection() { public void onServiceConnected(ComponentName className, IBinder service) { LocalBinder binder = (LocalBinder) service; mService = binder.getService(); mBound = true; } public void onServiceDisconnected(ComponentName arg0) { mBound = false; } }; public class TimedToast extends AsyncTask<Long, Integer, Integer> { @Override protected Integer doInBackground(Long... arg0) { if (notifs < 15) { try { Toast.makeText(ToDoList.this, entries + " entries left", Toast.LENGTH_SHORT).show(); notifs++; Thread.sleep(20000); } catch (InterruptedException e) { } } return 0; } } } TodoService.java: package com.examples.todolist; import android.app.Service; import android.content.ContentResolver; import android.content.ContentValues; import android.content.Intent; import android.database.Cursor; import android.os.Binder; import android.os.IBinder; public class TodoService extends Service { private final IBinder mBinder = new LocalBinder(); @Override public IBinder onBind(Intent arg0) { return mBinder; } public class LocalBinder extends Binder { TodoService getService() { return TodoService.this; } } public void insertTask(ToDoItem _task) { ContentResolver cr = getContentResolver(); ContentValues values = new ContentValues(); values.put(TodoProvider.KEY_CREATION_DATE, _task.getCreated().getTime()); values.put(TodoProvider.KEY_TASK, _task.getTask()); cr.insert(TodoProvider.CONTENT_URI, values); } public void updateTask(ToDoItem _task) { long tid = _task.getTaskId(); ContentResolver cr = getContentResolver(); ContentValues values = new ContentValues(); values.put(TodoProvider.KEY_TASK, _task.getTask()); cr.update(TodoProvider.CONTENT_URI, values, TodoProvider.KEY_ID + "=" + tid, null); } public void removeTask(long tid) { ContentResolver cr = getContentResolver(); cr.delete(TodoProvider.CONTENT_URI, TodoProvider.KEY_ID + "=" + tid, null); } public Cursor getAllToDoItemsCursor() { ContentResolver cr = getContentResolver(); return cr.query(TodoProvider.CONTENT_URI, null, null, null, null); } } TodoProvider.java: package com.examples.todolist; import android.content.*; import android.database.Cursor; import android.database.SQLException; import android.database.sqlite.SQLiteOpenHelper; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteQueryBuilder; import android.database.sqlite.SQLiteDatabase.CursorFactory; import android.net.Uri; import android.text.TextUtils; import android.util.Log; public class TodoProvider extends ContentProvider { public static final Uri CONTENT_URI = Uri.parse("content://com.examples.provider.todolist/todo"); @Override public boolean onCreate() { Context context = getContext(); todoHelper dbHelper = new todoHelper(context, DATABASE_NAME, null, DATABASE_VERSION); todoDB = dbHelper.getWritableDatabase(); return (todoDB == null) ? false : true; } @Override public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sort) { SQLiteQueryBuilder tb = new SQLiteQueryBuilder(); tb.setTables(TODO_TABLE); // If this is a row query, limit the result set to the passed in row. switch (uriMatcher.match(uri)) { case TASK_ID: tb.appendWhere(KEY_ID + "=" + uri.getPathSegments().get(1)); break; default: break; } // If no sort order is specified sort by date / time String orderBy; if (TextUtils.isEmpty(sort)) { orderBy = KEY_ID; } else { orderBy = sort; } // Apply the query to the underlying database. Cursor c = tb.query(todoDB, projection, selection, selectionArgs, null, null, orderBy); // Register the contexts ContentResolver to be notified if // the cursor result set changes. c.setNotificationUri(getContext().getContentResolver(), uri); // Return a cursor to the query result. return c; } @Override public Uri insert(Uri _uri, ContentValues _initialValues) { // Insert the new row, will return the row number if // successful. long rowID = todoDB.insert(TODO_TABLE, "task", _initialValues); // Return a URI to the newly inserted row on success. if (rowID > 0) { Uri uri = ContentUris.withAppendedId(CONTENT_URI, rowID); getContext().getContentResolver().notifyChange(uri, null); return uri; } throw new SQLException("Failed to insert row into " + _uri); } @Override public int delete(Uri uri, String where, String[] whereArgs) { int count; switch (uriMatcher.match(uri)) { case TASKS: count = todoDB.delete(TODO_TABLE, where, whereArgs); break; case TASK_ID: String segment = uri.getPathSegments().get(1); count = todoDB.delete(TODO_TABLE, KEY_ID + "=" + segment + (!TextUtils.isEmpty(where) ? " AND (" + where + ')' : ""), whereArgs); break; default: throw new IllegalArgumentException("Unsupported URI: " + uri); } getContext().getContentResolver().notifyChange(uri, null); return count; } @Override public int update(Uri uri, ContentValues values, String where, String[] whereArgs) { int count; switch (uriMatcher.match(uri)) { case TASKS: count = todoDB.update(TODO_TABLE, values, where, whereArgs); break; case TASK_ID: String segment = uri.getPathSegments().get(1); count = todoDB.update(TODO_TABLE, values, KEY_ID + "=" + segment + (!TextUtils.isEmpty(where) ? " AND (" + where + ')' : ""), whereArgs); break; default: throw new IllegalArgumentException("Unknown URI " + uri); } getContext().getContentResolver().notifyChange(uri, null); return count; } @Override public String getType(Uri uri) { switch (uriMatcher.match(uri)) { case TASKS: return "vnd.android.cursor.dir/vnd.examples.task"; case TASK_ID: return "vnd.android.cursor.item/vnd.examples.task"; default: throw new IllegalArgumentException("Unsupported URI: " + uri); } } // Create the constants used to differentiate between the different URI // requests. private static final int TASKS = 1; private static final int TASK_ID = 2; private static final UriMatcher uriMatcher; // Allocate the UriMatcher object, where a URI ending in 'tasks' will // correspond to a request for all tasks, and 'tasks' with a // trailing '/[rowID]' will represent a single task row. static { uriMatcher = new UriMatcher(UriMatcher.NO_MATCH); uriMatcher.addURI("com.examples.provider.Todolist", "tasks", TASKS); uriMatcher.addURI("com.examples.provider.Todolist", "tasks/#", TASK_ID); } //The underlying database private SQLiteDatabase todoDB; private static final String TAG = "TodoProvider"; private static final String DATABASE_NAME = "todolist.db"; private static final int DATABASE_VERSION = 1; private static final String TODO_TABLE = "todolist"; // Column Names public static final String KEY_ID = "_id"; public static final String KEY_TASK = "task"; public static final String KEY_CREATION_DATE = "date"; public long insertTask(ToDoItem _task) { // Create a new row of values to insert. ContentValues newTaskValues = new ContentValues(); // Assign values for each row. newTaskValues.put(KEY_TASK, _task.getTask()); newTaskValues.put(KEY_CREATION_DATE, _task.getCreated().getTime()); // Insert the row. return todoDB.insert(TODO_TABLE, null, newTaskValues); } public boolean updateTask(long _rowIndex, String _task) { ContentValues newValue = new ContentValues(); newValue.put(KEY_TASK, _task); return todoDB.update(TODO_TABLE, newValue, KEY_ID + "=" + _rowIndex, null) > 0; } public boolean removeTask(long _rowIndex) { return todoDB.delete(TODO_TABLE, KEY_ID + "=" + _rowIndex, null) > 0; } // Helper class for opening, creating, and managing database version control private static class todoHelper extends SQLiteOpenHelper { private static final String DATABASE_CREATE = "create table " + TODO_TABLE + " (" + KEY_ID + " integer primary key autoincrement, " + KEY_TASK + " TEXT, " + KEY_CREATION_DATE + " INTEGER);"; public todoHelper(Context cn, String name, CursorFactory cf, int ver) { super(cn, name, cf, ver); } @Override public void onCreate(SQLiteDatabase db) { db.execSQL(DATABASE_CREATE); } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { Log.w(TAG, "Upgrading database from version " + oldVersion + " to " + newVersion + ", which will destroy all old data"); db.execSQL("DROP TABLE IF EXISTS " + TODO_TABLE); onCreate(db); } } } I've omitted the other files as I'm sure they are correct. When I run the program, LogCat shows that the NullPointerException occurs in populateTodoList(), at toDoListCursor = mService.getAllToDoItemsCursor(). mService is the Cursor object returned by TodoService. I've added the service to the Manifest file, but I still cannot find out why it's causing an exception. Thanks in advance.

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  • JPanel Appears Behind JMenuBar

    - by Matt H
    import javax.swing.JFrame; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; @SuppressWarnings("serial") public class Main extends JFrame { final int FRAME_HEIGHT = 400; final int FRAME_WIDTH = 400; public static void main(String args[]) { new Main(); } public Main() { super("Game"); GameCanvas canvas = new GameCanvas(); JMenuBar menuBar = new JMenuBar(); JMenu fileMenu = new JMenu("File"); JMenuItem startMenuItem = new JMenuItem("Pause"); menuBar.add(fileMenu); fileMenu.add(startMenuItem); super.setVisible(true); super.setSize(FRAME_WIDTH, FRAME_WIDTH); super.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); super.setJMenuBar(menuBar); } } import java.awt.Canvas; import java.awt.Graphics; import javax.swing.JPanel; @SuppressWarnings("serial") public class GameCanvas extends JPanel { public void paint(Graphics g) { g.drawString("hI", 0, 0); } } This code causes the string to appear behind the JMenuBar. To see the string, you must draw it at (0,10). I'm sure this must be something simple, so do you guys have any ideas?

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  • Inheritance Problem in Perl OOP

    - by Sam
    Hello, I have a sub class that calls a method from a super class. and the method in the super class use a method that is defined in the super class as asbstract(not really abstract) but implemented in the sub class. for example: package BaseClass; sub new { } sub method1 { return someAbstractMethod(); } sub someAbtsractMethod { die "oops, this is an abstract method that should be implemented in a subclass" ; } 1; package SubClass; sub new { } sub someAbtsractMethod { print "now we implement the asbtract method"; } 1; now when I do: $sub = new SubClass(); $sub-method1(); It calls the abstract message and i get the specified error message. if I took off the abstractmethod from the super class and just leave the implementation in the subclass, It does not recognize the method and I get subroutine abstractmethod not found error.

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  • Implementation of Nib project to Storyboard, Xcode

    - by Blake Loizides
    I have made a tabbed bar application in storyboard in xcode. I,m new to xcode. I got a Sample TableView XIB project from apple that I edited to my needs,The project has a UITableView that I Customized with Images, And with help of a certain forum member I was able to link up each image to a New View Controller. I tried to port or integrate My Nib Project Code to my StoryBoard Tabbed Bar Application.I thought I had everything right had to comment out a few things to get no errors, But the project only goes to a Blank Table View. Below are 2 links, 1 to my StoryBoard Tabbed Bar Application with the Table Code that I tried to integrate and the other My Successful Nib Project. Also is some code and pictures. If anybody has some free time and does not mind to help I would be extremely grateful for any input given. link1 - Storyboard link2 - XIB DecorsViewController_iPhone.m // // TableViewsViewController.m // TableViews // // Created by Axit Patel on 9/2/10. // Copyright Bayside High School 2010. All rights reserved. // #import "DecorsViewController_iPhone.h" #import "SelectedCellViewController.h" @implementation DecorsViewController_iPhone #pragma mark - Synthesizers @synthesize sitesArray; @synthesize imagesArray; #pragma mark - View lifecycle // Implement viewDidLoad to do additional setup after loading the view, typically from a nib. - (void)viewDidLoad { // Load up the sitesArray with a dummy array : sites NSArray *sites = [[NSArray alloc] initWithObjects:@"a", @"b", @"c", @"d", @"e", @"f", @"g", @"h", nil]; self.sitesArray = sites; //[sites release]; UIImage *PlumTree = [UIImage imageNamed:@"a.png"]; UIImage *CherryRoyale = [UIImage imageNamed:@"b.png"]; UIImage *MozambiqueWenge = [UIImage imageNamed:@"c.png"]; UIImage *RoyaleMahogany = [UIImage imageNamed:@"d.png"]; UIImage *Laricina = [UIImage imageNamed:@"e.png"]; UIImage *BurntOak = [UIImage imageNamed:@"f.png"]; UIImage *AutrianOak = [UIImage imageNamed:@"g.png"]; UIImage *SilverAcacia = [UIImage imageNamed:@"h.png"]; NSArray *images = [[NSArray alloc] initWithObjects: PlumTree, CherryRoyale, MozambiqueWenge, RoyaleMahogany, Laricina, BurntOak, AutrianOak, SilverAcacia, nil]; self.imagesArray = images; //[images release]; [super viewDidLoad]; } #pragma mark - Table View datasource methods // Required Methods // Return the number of rows in a section - (NSInteger)tableView:(UITableView *)table numberOfRowsInSection:(NSInteger)section { return [sitesArray count]; } // Returns cell to render for each row - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"CellIdentifier"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier]; // Configure cell NSUInteger row = [indexPath row]; // Sets the text for the cell //cell.textLabel.text = [sitesArray objectAtIndex:row]; // Sets the imageview for the cell cell.imageView.image = [imagesArray objectAtIndex:row]; // Sets the accessory for the cell cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; // Sets the detailtext for the cell (subtitle) //cell.detailTextLabel.text = [NSString stringWithFormat:@"This is row: %i", row + 1]; return cell; } // Optional // Returns the number of section in a table view -(NSInteger) numberOfSectionsInTableView:(UITableView *)tableView { return 1; } #pragma mark - #pragma mark Table View delegate methods // Return the height for each cell -(CGFloat) tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath { return 78; } // Sets the title for header in the tableview -(NSString *) tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section { return @"Decors"; } // Sets the title for footer -(NSString *) tableView:(UITableView *)tableView titleForFooterInSection:(NSInteger)section { return @"Decors"; } // Sets the indentation for rows -(NSInteger) tableView:(UITableView *)tableView indentationLevelForRowAtIndexPath:(NSIndexPath *)indexPath { return 0; } // Method that gets called from the "Done" button (From the @selector in the line - [viewControllerToShow.navigationItem setRightBarButtonItem:[[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(dismissView)] autorelease]];) - (void)dismissView { [self dismissViewControllerAnimated:YES completion:NULL]; } // This method is run when the user taps the row in the tableview - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { [tableView deselectRowAtIndexPath:indexPath animated:YES]; SelectedCellViewController *viewControllerToShow = [[SelectedCellViewController alloc] initWithNibName:@"SelectedCellViewController" bundle:[NSBundle mainBundle]]; [viewControllerToShow setLabelText:[NSString stringWithFormat:@"You selected cell: %d - %@", indexPath.row, [sitesArray objectAtIndex:indexPath.row]]]; [viewControllerToShow setImage:(UIImage *)[imagesArray objectAtIndex:indexPath.row]]; [viewControllerToShow setModalPresentationStyle:UIModalPresentationFormSheet]; [viewControllerToShow setModalTransitionStyle:UIModalTransitionStyleFlipHorizontal]; [viewControllerToShow.navigationItem setRightBarButtonItem:[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(dismissView)]]; UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:viewControllerToShow]; viewControllerToShow = nil; [self presentViewController:navController animated:YES completion:NULL]; navController = nil; // UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Tapped row!" // message:[NSString stringWithFormat:@"You tapped: %@", [sitesArray objectAtIndex:indexPath.row]] // delegate:nil // cancelButtonTitle:@"Yes, I did!" // otherButtonTitles:nil]; // [alert show]; // [alert release]; } #pragma mark - Memory management - (void)didReceiveMemoryWarning { NSLog(@"Memory Warning!"); [super didReceiveMemoryWarning]; } - (void)viewDidUnload { self.sitesArray = nil; self.imagesArray = nil; [super viewDidUnload]; } //- (void)dealloc { //[sitesArray release]; //[imagesArray release]; // [super dealloc]; //} //@end //- (void)viewDidUnload //{ // [super viewDidUnload]; // Release any retained subviews of the main view. //} - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) { return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown); } else { return YES; } } @end DecorsViewController_iPhone.h #import <UIKit/UIKit.h> @interface DecorsViewController_iPhone : UIViewController <UITableViewDelegate, UITableViewDataSource> { NSArray *sitesArray; NSArray *imagesArray; } @property (nonatomic, retain) NSArray *sitesArray; @property (nonatomic, retain) NSArray *imagesArray; @end SelectedCellViewController.m #import "SelectedCellViewController.h" @implementation SelectedCellViewController @synthesize labelText; @synthesize image; - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { if ((self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil])) { } return self; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; } #pragma mark - View lifecycle - (void)viewDidLoad { [super viewDidLoad]; [label setText:self.labelText]; [imageView setImage:self.image]; } - (void)viewDidUnload { self.labelText = nil; self.image = nil; // [label release]; // [imageView release]; [super viewDidUnload]; } - (BOOL)shouldAutorotateToInterfaceOrientation: (UIInterfaceOrientation)interfaceOrientation { return (interfaceOrientation == UIInterfaceOrientationPortrait); } @end SelectedCellViewController.h @interface SelectedCellViewController : UIViewController { NSString *labelText; UIImage *image; IBOutlet UILabel *label; IBOutlet UIImageView *imageView; } @property (nonatomic, copy) NSString *labelText; @property (nonatomic, retain) UIImage *image; @end

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  • Thread 1: Program received signal:"Sigbart"

    - by user813678
    When i try to run my app on my iPhone, I get " Thread 1: Program received signal:"Sigbart" xCode say that points to [self.navigationController pushViewController:detailViewController animated:YES]; import "RootViewController.h" import "global.h" import "golfbaner.h" @implementation RootViewController @synthesize banenavn; (void)viewDidLoad { [super viewDidLoad]; NSArray *temp = [[NSArray alloc] initWithObjects: @"Alsten Golfklubb", @"Arendal og Omegn Golfklubb", @"Asker Golfklubb", @"Askim Golfklubb", @"Atlungstad Golfklubb", @"Aurskog Golfpark", @"Ballerud Golfklubb", @"Bamble Golfklubb", @"Bergen Golfklubb", @"Bjorli Golfklubb", @"Bjørnefjorden Golfklubb", @"Bjaavann Golfklubb", @"Bodø Golfbane", @"Borre Golfbane", @"Borregaard Golfklubb", @"Brønnøysund Golfklubb", @"Byneset Golfklubb", @"Bærum Golfklubb", @"Drammen Golfklubb", @"Drøbak Golfklubb", @"Egersund Golfklubb", @"Eidskog Golfklubb", @"Eiker Golfklubb", @"Ekholt Golfklubb", @"Elverum Golfklubb", @"Fana Golfklubb", @"Fet Golfklubb", @"Frosta Golfklubb", @"Geilo Golfklubb", @"Giske Golfklubb", @"Gjerdrum Golfpark", @"Gjersjøen Golfklubb", @"Gjøvik og Toten Golfklubb", @"Gran Golfklubb", @"Grenland Golfklubb", @"Grimstad Golfklubb", @"Grini Golfklubb", @"Groruddalen Golfklubb", @"Grønmo Golfklubb", @"Hafjell Golfklubb", @"Haga Golfpark", @"Hakadal Golfklubb", @"Halden Golfklubb", @"Hallingdal Golfklubb", @"Hammerfest og Kvalsund Golfklubb", @"Hardanger Golfklubb", @"Harstad Golfklubb", @"Haugaland Golfklubb", @"Hauger Golf", @"Haugesund Golfklubb", @"Helgeland Golfklubb", @"Hemsedal Golfklubb", @"Herdla Golfklubb", @"Hitra Golfklubb", @"Hof Golfklubb", @"Holtsmark Golfklubb", @"Hovden Golfklubb", @"Hurum Golfklubb", @"Huseby og Hankø Golfklubb", @"Hvaler Golfklubb", @"Hvam Golfklubb", @"Jæren Golfklubb", @"Karasjok Golfklubb", @"Karmøy Golfklubb", @"Kjekstad Golfklubb", @"Klæbu Golfklubb", @"Kongsberg Golfklubb", @"Kongsvinger Golfklubb", @"Kragerø Golfklubb", @"Kristiansand Golfklubb", @"Kristiansund og Omegn Golfklubb", @"Krokhol Golfklubb", @"Kvinesdal og Omegn Golfklubb", @"Kvinnherad Golfklubb", @"Kvitfjell", @"Larvik Golfklubb", @"Lillehammer Golf Park", @"Lillestrøm Golfklubb", @"Lofoten Golf Links", @"Lommedalen Golfklubb", @"Losby Golfklubb", @"Lærdal Golfklubb", @"Lønne Golfklubb", @"Mandal Golfklubb", @"Meland Golfklubb", @"Midt-Troms Golfklubb", @"Miklagard Golfklubb", @"Mjøsen Golfklubb", @"Moa Golfklubb", @"Modum Golfklubb", @"Molde Golfklubb", @"Moss og Rygge Golfklubb", @"Mørk Golfklubb", @"Namdal Golfklubb", @"Namsos Golfklubb", @"Narvik Golfklubb", @"Nes Golfklubb", @"Nittedal Golfklubb", @"Nordfjord Golfklubb", @"Nordvegen Golfklubb", @"Norefjell Golfklubb", @"Norsjø og Omegn Golfklubb", @"North Cape Golf Club", @"Nærøysund Golfklubb", @"Nøtterøy Golfklubb", @"Odda Golfklubb", @"Ogna Golfklubb", @"Onsøy Golfklubb", @"Oppdal Golfklubb", @"Oppegård Golfklubb", @"Oslo Golfklubb", @"Oustøen Country Club", @"Polarsirkelen Golf", @"Preikestolen Golfklubb", @"Randaberg Golfklubb", @"Randsfjorden Golfklubb", @"Rauma Golfklubb", @"Re Golfklubb", @"Ringerike Golfklubb", @"Rygge Flystasjon Golf Club", @"Røros Golfklubb", @"Salten Golfklubb", @"Sandane Golfklubb", @"Sande Golfklubb", @"Sandefjord Golfklubb", @"Sandnes Golfklubb", @"Sauda Golfklubb", @"Selbu Golfklubb", @"Selje Golfklubb", @"Setesdal Golfklubb", @"Skei Golfklubb", @"Ski Golfklubb", @"Skjeberg Golfklubb", @"Smøla Golfklubb", @"Sola Golfklubb", @"Solastranden Golfklubb", @"Solum Golfklubb", @"Soon Golfklubb", @"Sorknes Golfklubb", @"Sotra Golfklubb", @"Stavanger Golfklubb", @"Steinkjer Golfklubb", @"Stiklestad Golfklubb", @"Stjørdal Golfklubb", @"Stord Golfklubb", @"Stranda Golfklubb", @"Stryn Golfklubb", @"Sunndal Golfklubb", @"Sunnfjord Golfklubb", @"Sunnmøre Golfklubb", @"Surnadal Golfklubb", @"Tjøme Golfklubb", @"Tromsø Golfklubb", @"Trondheim Golfklubb", @"Trysil Golfklubb", @"Tyrifjord Golfklubb", @"Ullensaker Golfklubb", @"Valdres Golfklubb", @"Vanylven Golfklubb", @"Varanger Golfklubb", @"Vesterålen Golfklubb", @"Vestfold Golfklubb", @"Vildmarken Golfklubb", @"Volda Golfklubb", @"Voss Golfklubb", @"Vrådal Golfklubb", @"Østmarka Golfklubb", @"Øya Golfpark", @"Ålesund Golfklubb", nil]; self.banenavn = temp; [temp release]; self.title = @"Golfbaner i Norge"; self.navigationController.navigationBar.barStyle = UIBarStyleBlackTranslucent; } (void)viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; } (void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; } (void)viewWillDisappear:(BOOL)animated { [super viewWillDisappear:animated]; } (void)viewDidDisappear:(BOOL)animated { [super viewDidDisappear:animated]; } /* // Override to allow orientations other than the default portrait orientation. - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { // Return YES for supported orientations. return (interfaceOrientation == UIInterfaceOrientationPortrait); } */ // Customize the number of sections in the table view. - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return 1; } (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return [banenavn count]; } // Customize the appearance of table view cells. - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; } cell.textLabel.text = [banenavn objectAtIndex:indexPath.row]; return cell; } /* // Override to support conditional editing of the table view. - (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath { // Return NO if you do not want the specified item to be editable. return YES; } */ /* // Override to support editing the table view. - (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath { if (editingStyle == UITableViewCellEditingStyleDelete) { // Delete the row from the data source. [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade]; } else if (editingStyle == UITableViewCellEditingStyleInsert) { // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view. } } */ /* // Override to support rearranging the table view. - (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath { } */ /* // Override to support conditional rearranging of the table view. - (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath { // Return NO if you do not want the item to be re-orderable. return YES; } */ (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { golf = [banenavn objectAtIndex:indexPath.row]; golfbaner *detailViewController = [[golfbaner alloc] initWithNibName:@"Golfbaner" bundle:nil]; [self.navigationController pushViewController:detailViewController animated:YES]; [detailViewController release]; } (void)didReceiveMemoryWarning { // Releases the view if it doesn't have a superview. [super didReceiveMemoryWarning]; // Relinquish ownership any cached data, images, etc that aren't in use. } (void)viewDidUnload { [super viewDidUnload]; // Relinquish ownership of anything that can be recreated in viewDidLoad or on demand. // For example: self.myOutlet = nil; } (void)dealloc { [super dealloc]; } @end

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  • Change classes instantiated with loadNibNamed

    - by Nick H247
    I am trying to change the class of objects created with a nib with the iPhone SDK. The reason for this is; i dont know until runtime what the class is that i want the nib object to be (though they will have the same UIView based super class), and i dont want to create a different nib for every eventuality - as the .nib will be the same for each, apart from the class of one object. I have been successful, with a couple of methods, but either have some knock on effects or am unsure of how safe the methods I have used are: Method 1: Override alloc, on the super class and set a c variable to the class I require: + (id) alloc { if (theClassIWant) { id object = [theClassIWant allocWithZone:NSDefaultMallocZone()]; theClassIWant = nil; return object; } return [BaseClass allocWithZone:NSDefaultMallocZone()]; } this works well, and i assume is 'reasonably' safe, though if I alloc a subclass myself (without setting 'theClassIWant') - an object of the base class is created. I also dont really like the idea of overriding alloc... Method 2: use object_setClass(self,theClassIWant) in initWithCoder (before calling initWithCoder on the super class): - (id) initWithCoder:(NSCoder *)aDecoder { if (theClassIWant) { // the framework doesn't like this: //[self release]; //self = [theClassIWant alloc]; // whoa now! object_setClass(self,theClassIWant); theClassIWant = nil; return [self initWithCoder:aDecoder]; } if (self = [super initWithCoder:aDecoder]) { ... this also works well, but not all the subclasses are necessarily going to be the same size as the super class, so this could be very unsafe! To combat this i tried releasing and re-allocing to the correct type within initWithCoder, but i got the following error from the framework: "This coder requires that replaced objects be returned from initWithCoder:" dont quite get what this means! i am replacing an object in initWithCoder... Any comments on the validity of these methods, or suggestions of improvements or alternatives welcome!

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  • Nested luabind classes declared in Lua

    - by Matt Fichman
    I am trying to declare a class B in a namespace A using Luabind (from the Lua side). I figure that if Luabind has a clean way to do this, it would look something like this: class 'A.B' (Super) function A.B:__init() Super.__init(self) end Notice that the B class is defined in the A table. I know the following hackish way of doing this: class 'A.B' (Super) A = {} A.B = _G['A.B'] However, I would really like to know if Luabind provides this feature explicitly.

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  • -(void)dealloc - How ? Objective - C

    - by sagar
    Please Note that - this is not similar than this question. OK. To understand my question, First of all please see both of these destructors. - (void)dealloc { [Marketdetails release]; Marketdetails=nil; [parsedarray release]; parsedarray=nil; [Marketid release]; Marketid=nil; [marketname release]; marketname=nil; [super dealloc]; } - (void)dealloc { [super dealloc]; [Marketdetails release]; Marketdetails=nil; [parsedarray release]; parsedarray=nil; [Marketid release]; Marketid=nil; [marketname release]; marketname=nil; } See, Both destructors have different code. In First Destructor first current class objects are released & then [super dealloc] is called. In second Desctructor first [super dealloc] is called. My question is as follows. Where should we write [super dealloc] ? first or last ? or it doesn't matter ?

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  • Flash CS, reference root from external class

    - by Lotus
    Hi, I made this class and I put it in the same package of Timeline.as (the Document Class): package { import flash.utils.Timer; import flash.events.TimerEvent; public class Counter2 extends Timer { public function Counter2(delay:Number, repeatCount:int=0) { super(delay, repeatCount); super.addEventListener(TimerEvent.TIMER, timerHandler); } public override function start():void { super.start(); } public override function stop():void { super.stop(); } public function timerHandler(evt:TimerEvent) { trace(evt.target.currentCount); } } } This class is instanciated in Timeline.as constructor. Is there any way to reference Timeline(root) from this class? And, if so, how? Thanks!

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  • UITableView: Handle cell selection in a mixed cell table view static and dynamic cells

    - by AlexR
    I am trying to mix dynamic and static cells in a grouped table view: I would like to get two sections with static cells at the top followed by a section of dynamic cells (please refer to the screenshot below). I have set the table view contents to static cells. Edit Based on AppleFreak's advice I have changed my code as follows: - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell; if (indexPath.section <= 1) { // section <= 1 indicates static cells cell = [super tableView:tableView cellForRowAtIndexPath:indexPath]; } else { // section > 1 indicates dynamic cells CellIdentifier = [NSString stringWithFormat:@"section%idynamic",indexPath.section]; cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath]; } return cell; } However, my app crashes with error message Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'UITableView dataSource must return a cell from tableView:cellForRowAtIndexPath:' for section 0 and row 0. The cell returned from cell = [super tableView:tableView cellForRowAtIndexPath:indexPath] for section 0 and row 0 is nil. What is wrong with my code? Could there be any problems with my outlets? I haven't set any outlets because I am subclassing UITableViewController and supposedly do not any outlets for tableview to be set (?). Any suggestions on how to better do it? Edit II I have recreated my scene in storyboard (please refer to my updated screen shot above) and rewritten the view controller in order to start from a new base. I have also read the description in Apple's forum as applefreak suggested. However, I run in my first problem with the method numberOfSectionsInTableView:tableView, in which I increment the number of static sections (two) by one. - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return [super numberOfSectionsInTableView:tableView] + 1 ; } The app crashed with the error message: Terminating app due to uncaught exception 'NSRangeException', reason: '* -[__NSArrayI objectAtIndex:]: index 2 beyond bounds [0 .. 1]' Why is this code not working for me even though I followed Apple's and applefreak recommendations? It is possible that the tableView has changed a bit in iOS 6? Solution: I got this to work now using AppleFreaks code sample in his answer below. Thank you, AppleFreak! Edit III: Cell Selection: How can I handle cell selection in a mixed (dynamic and static cells) cell table view? When do I call super and when do I call self tableView? When I use [[super tableView] selectRowAtIndexPath:indexPath animated:NO scrollPosition:UITableViewScrollPositionNone] and try to check for the selected index paths with: UITableView *tableView = [super tableView]; if ( [[tableView indexPathForSelectedRow] isEqual:customGrowthIndexPath] ) { .. } I get an return value of nil. As I can't find the source of my error, I really would appreciate your help

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  • Change storyboard UIImageView to own class with backgroundcolor

    - by Thomas
    I want to draw the background image on my own, so I decided to implement a UIImageView class and connect it in the Storyboard. As first task I just want to set the backgroundcolor of the image on my own, but it's never shown. Image just stays blank. That's the class: class FirstBackgroundImage : UIImageView { required init(coder aDecoder: NSCoder) { super.init(coder: aDecoder) self.backgroundColor = UIColor.redColor() } override init() { super.init() self.backgroundColor = UIColor.redColor() } override required init(image: UIImage!) { super.init(image: image) self.backgroundColor = UIColor.redColor() } } That's how i connected it:

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  • Get touches from UIScrollView

    - by Peter Lapisu
    Basically i want to subclass UIScrollView and hande the touches, however, the touch methods dont get called (i searched the web for a solution and i found out people pointing to override the hit test, what i did, but with no result :( ) .h @interface XScroller : UIScrollView @end .m - (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event { UIView *result = nil; for (UIView *child in self.subviews) { if ([child pointInside:point withEvent:event]) { if ((result = [child hitTest:point withEvent:event]) != nil) { break; } } } return result; } - (void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { NSLog(@"BEGAN"); [super touchesBegan:touches withEvent:event]; } - (void) touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { NSLog(@"MOVED"); [super touchesMoved:touches withEvent:event]; } - (void) touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { NSLog(@"ENDED"); [super touchesEnded:touches withEvent:event]; } - (void) touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event { NSLog(@"CANCELED"); [super touchesCancelled:touches withEvent:event]; } none of the - (void) touches* methods get called, the scrolling works ok

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  • In Google Glass, Menu Items are not shown after XE 17.2 Update, any Solutions?

    - by Amalan Dhananjayan
    This worked when the Glass in on XE12, I have opened the solution after about 2 Months and now with XE17 the menu items are not shown when tapped on the Live card, instead the live card is disappearing. I have updated the GDK, I have changed the code to support the latest GDK sneak peek version 2 changes according to this (https://developers.google.com/glass/release-notes#xe12) This is the code public class MenuActivity extends Activity { private static final String TAG = MenuActivity.class.getSimpleName(); private VisionService.VisionBinder mVisionService; private ServiceConnection mConnection = new ServiceConnection() { @Override public void onServiceConnected(ComponentName name, IBinder service) { if (service instanceof VisionService.VisionBinder) { mVisionService = (VisionService.VisionBinder) service; openOptionsMenu(); } // No need to keep the service bound. unbindService(this); } @Override public void onServiceDisconnected(ComponentName name) { } }; private boolean mResumed; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); bindService(new Intent(this, VisionService.class), mConnection, 0); } @Override protected void onResume() { super.onResume(); mResumed = true; openOptionsMenu(); } @Override protected void onPause() { super.onPause(); mResumed = false; } @Override public void openOptionsMenu() { if (mResumed && mConnection != null) { super.openOptionsMenu(); } } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.menu, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { int id = item.getItemId(); if (id == R.id.action_send) { mVisionService.requestWorkOrderCard(); finish(); return true; } else if (id == R.id.action_refresh) { mVisionService.requestTopWorkOrders(); finish(); return true; } else if (id == R.id.action_finish) { stopService(new Intent(this, VisionService.class)); finish(); return true; } else { return super.onOptionsItemSelected(item); } } @Override public void onOptionsMenuClosed(Menu menu) { super.onOptionsMenuClosed(menu); } } It would be great if any body could help on this. Thank You

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  • How do you call a method for an Objective-C object's superclass from elsewhere?

    - by executor21
    If you're implementing a subclass, you can, within your implementation, explicitly call the superclass's method, even if you've overridden that method, i.e.: [self overriddenMethod]; //calls the subclass's method [super overriddenMethod]; //calls the superclass's method What if you want to call the superclass's method from somewhere outside the subclass's implementation, i.e.: [[object super] overriddenMethod]; //crashes Is this even possible? And by extension, is it possible to go up more than one level within the implementation, i.e.: [[super super] overriddenMethod]; //will this work?

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  • JavaScript - Inheritance in Constructors

    - by j0ker
    For a JavaScript project we want to introduce object inheritance to decrease code duplication. However, I cannot quite get it working the way I want and need some help. We use the module pattern. Suppose there is a super element: a.namespace('a.elements.Element'); a.elements.Element = (function() { // public API -- constructor Element = function(properties) { this.id = properties.id; }; // public API -- prototype Element.prototype = { getID: function() { return this.id; } }; return Element; }()); And an element inheriting from this super element: a.namespace('a.elements.SubElement'); a.elements.SubElement = (function() { // public API -- constructor SubElement = function(properties) { // inheritance happens here // ??? this.color = properties.color; this.bogus = this.id + 1; }; // public API -- prototype SubElement.prototype = { getColor: function() { return this.color; } }; return SubElement; }()); You will notice that I'm not quite sure how to implement the inheritance itself. In the constructor I have to be able to pass the parameter to the super object constructor and create a super element that is then used to create the inherited one. I need a (comfortable) possibility to access the properties of the super object within the constructor of the new object. Ideally I could operate on the super object as if it was part of the new object. I also want to be able to create a new SubElement and call getID() on it. What I want to accomplish seems like the traditional class based inheritance. However, I'd like to do it using prototypal inheritance since that's the JavaScript way. Is that even doable? Thanks in advance! EDIT: Fixed usage of private variables as suggested in the comments. EDIT2: Another change of the code: It's important that id is accessible from the constructor of SubElement.

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  • Object initialization sequence in Objective-C

    - by Alex
    Hello everyone. The Cocoa framework has a convention to always call self = [super init] in the init method of an inherited class, because [super init] may return a new instance. What will happen if I do this? @interface MyClass : NSObject /* or any other class */ { int ivar_; } @end @implementation MyClass - (id)init { ivar_ = 12345; if ((self = [super init])) { NSLog(@"ivar_'s value is %d", ivar_); } return self; } @end In the case when [super init] returns a new instance, what will I see in the console? ivar_'s value is 0? I can't think of a way to check this myself, because I don't know which class may return a new instance from its init method. Also, can't seem to find explicit clarification for this scenario in the docs. Could anyone help me out? Thanks!

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