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  • Intent and OnActivityResult causing Activity to get restart Actuomatically : Require to solve this issues

    - by Parth Dani
    i am having 20 imageview and i am having 20 button for them when i click any 1 button it gives me option to select image from gallery or camera when i select any option for example galley it will take me to the gallery and let me select image from their and let me display those images on my imageview for respective button now the problem is sometimes when i do the whole above process my activity is getting restart actuomatically and all the image which were first selected get vanished from their imageview For Refernce my code is as follow: @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.new_upload); // **************Code to get Road worthy number and VIN number value in // Shared Preference starts here************************ SharedPreferences myPrefs1 = this.getSharedPreferences("myPrefs", MODE_WORLD_READABLE); roadworthynumber = myPrefs1.getString(MY_ROADWORTHY, "Road Worthy Number"); vinnumber = myPrefs1.getString(MY_VIN, "VIN Number"); // **************Code to get Road worthy number and VIN number value in // Shared Preference ends here************************ // **************Code to create Directory AUSRWC starts // here************************ if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { cacheDir = new File(Environment.getExternalStorageDirectory() + File.separator + "AUSRWC" + File.separator); cacheDir.mkdirs(); } // **************Code to Create Directory AUSRWC ends // here************************ // *****************Assigning Button variable their Id declare in XML // file starts here***************** new_select1 = (Button) findViewById(R.id.new_select1); new_select2 = (Button) findViewById(R.id.new_select2); new_select3 = (Button) findViewById(R.id.new_select3); new_select4 = (Button) findViewById(R.id.new_select4); new_select5 = (Button) findViewById(R.id.new_select5); new_select6 = (Button) findViewById(R.id.new_select6); new_select7 = (Button) findViewById(R.id.new_select7); new_select8 = (Button) findViewById(R.id.new_select8); new_select9 = (Button) findViewById(R.id.new_select9); new_select10 = (Button) findViewById(R.id.new_select10); new_select11 = (Button) findViewById(R.id.new_select11); new_select12 = (Button) findViewById(R.id.new_select12); new_select13 = (Button) findViewById(R.id.new_select13); new_select14 = (Button) findViewById(R.id.new_select14); new_select15 = (Button) findViewById(R.id.new_select15); new_select16 = (Button) findViewById(R.id.new_select16); new_select17 = (Button) findViewById(R.id.new_select17); new_select18 = (Button) findViewById(R.id.new_select18); new_select19 = (Button) findViewById(R.id.new_select19); new_select20 = (Button) findViewById(R.id.new_select20); // *****************Assigning Button variable their Id declare in XML // file ends here***************** // *****************Assigning Image variable their Id declare in XML // file starts here***************** new_selectimage1 = (ImageView) findViewById(R.id.new_selectImage1); new_selectimage2 = (ImageView) findViewById(R.id.new_selectImage2); new_selectimage3 = (ImageView) findViewById(R.id.new_selectImage3); new_selectimage4 = (ImageView) findViewById(R.id.new_selectImage4); new_selectimage5 = (ImageView) findViewById(R.id.new_selectImage5); new_selectimage6 = (ImageView) findViewById(R.id.new_selectImage6); new_selectimage7 = (ImageView) findViewById(R.id.new_selectImage7); new_selectimage8 = (ImageView) findViewById(R.id.new_selectImage8); new_selectimage9 = (ImageView) findViewById(R.id.new_selectImage9); new_selectimage10 = (ImageView) findViewById(R.id.new_selectImage10); new_selectimage11 = (ImageView) findViewById(R.id.new_selectImage11); new_selectimage12 = (ImageView) findViewById(R.id.new_selectImage12); new_selectimage13 = (ImageView) findViewById(R.id.new_selectImage13); new_selectimage14 = (ImageView) findViewById(R.id.new_selectImage14); new_selectimage15 = (ImageView) findViewById(R.id.new_selectImage15); new_selectimage16 = (ImageView) findViewById(R.id.new_selectImage16); new_selectimage17 = (ImageView) findViewById(R.id.new_selectImage17); new_selectimage18 = (ImageView) findViewById(R.id.new_selectImage18); new_selectimage19 = (ImageView) findViewById(R.id.new_selectImage19); new_selectimage20 = (ImageView) findViewById(R.id.new_selectImage20); // ****Assigning Image variable their Id declare in XML file ends // here***************** // **************Creating Dialog to give option to user to new_select // image from gallery or from camera starts here**************** final String[] items = new String[] { "From Camera", "From Gallery" }; ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.select_dialog_item, items); AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle("select Image"); builder.setAdapter(adapter, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int item) { if (item == 0) { if (android.os.Environment.getExternalStorageState() .equals(android.os.Environment.MEDIA_MOUNTED)) { Intent intent = new Intent( MediaStore.ACTION_IMAGE_CAPTURE); File file = new File(Environment .getExternalStorageDirectory(), "/AUSRWC/picture" + ".jpg"); mImageCaptureUri = Uri.fromFile(file); try { Toast.makeText(getBaseContext(), "Click Image", Toast.LENGTH_SHORT).show(); intent.putExtra( android.provider.MediaStore.EXTRA_OUTPUT, mImageCaptureUri); intent.putExtra("return-data", true); startActivityForResult(intent, PICK_FROM_CAMERA); } catch (Exception e) { e.printStackTrace(); } } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } dialog.cancel(); } else { Intent intent = new Intent(); Toast.makeText(getBaseContext(), "Select Image", Toast.LENGTH_SHORT).show(); intent.setType("image/*"); intent.setAction(Intent.ACTION_GET_CONTENT); startActivityForResult(Intent.createChooser(intent, "Complete action using"), PICK_FROM_FILE); } } }); dialog = builder.create(); // **************Creating Dialog to give option to user to new_select // image from gallery or from camera ends here**************** final Animation animAlpha = AnimationUtils.loadAnimation(this, R.anim.anim_alpha); // Animation Code for displaying Button // Clicked. // ********************Image 1 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select1.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 1; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 1 button code ends // here******************************* // ********************Image 2 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select2.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 2; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 2 button code ends // here******************************* // ********************Image 3 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select3.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 3; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 3 button code ends // here******************************* // ********************Image 4 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select4.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 4; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 4 button code ends // here******************************* // ********************Image 5 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select5.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 5; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 5 button code ends // here******************************* // ********************Image 6 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select6.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 6; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 6 button code ends // here******************************* // ********************Image 7 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select7.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 7; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 7 button code ends // here******************************* // ********************Image 8 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select8.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 8; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 8 button code ends // here******************************* // ********************Image 9 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select9.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 9; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 9 button code ends // here******************************* // ********************Image 10 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select10.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 10; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 10 button code ends // here******************************* // ********************Image 11 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select11.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 11; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 11 button code ends // here******************************* // ********************Image 12 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select12.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 12; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 12 button code ends // here******************************* // ********************Image 13 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select13.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 13; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 13 button code ends // here******************************* // ********************Image 14 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select14.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 14; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 14 button code ends // here******************************* // ********************Image 15 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select15.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 15; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 15 button code ends // here******************************* // ********************Image 16 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select16.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 16; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 16 button code ends // here******************************* // ********************Image 17 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select17.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 17; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 17 button code ends // here******************************* // ********************Image 18 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select18.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 18; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 18 button code ends // here******************************* // ********************Image 19 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select19.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 19; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 19 button code ends // here******************************* // ********************Image 20 button code starts // here******************************* if (android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED)) { new_select20.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { v.startAnimation(animAlpha); buttonpressed = 20; dialog.show(); } }); } else { Toast.makeText(getBaseContext(), "Please insert SdCard First", Toast.LENGTH_SHORT).show(); } // ********************Image 20 button code ends // here******************************* } // *************************When Back Button is Pressed code begins // here************************************* @Override public void onBackPressed() { Toast.makeText(new_upload.this, "Sorry You are not allowed to go back", Toast.LENGTH_SHORT).show(); return; } // *************************When Back Button is Pressed code ends // here************************************* // ***********************To get Path of new_selected Image code starts // here************************************ public String getRealPathFromURI(Uri contentUri) { String[] proj = { MediaStore.Images.Media.DATA }; Cursor cursor = managedQuery(contentUri, proj, null, null, null); if (cursor == null) return null; int column_index = cursor .getColumnIndexOrThrow(MediaStore.Images.Media.DATA); cursor.moveToFirst(); return cursor.getString(column_index); } // ***********************To get Path of new_selected Image code ends // here************************************ // **********************Picture obtained from the camera or from gallery // code starts here************** @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { //path = ""; Log.e("","requestCode="+requestCode); switch (requestCode){ case PICK_FROM_FILE: if (resultCode == Activity.RESULT_OK) { mImageCaptureUri = data.getData(); path = getRealPathFromURI(mImageCaptureUri); // from Gallery Log.e("", "Imagepath from gallery=" + path); if (path == null) path = mImageCaptureUri.getPath(); // from File Manager if (path != null) { dialog1 = ProgressDialog.show(new_upload.this, "", "Processing Please wait...", true); new ImageDisplayTask().execute(); } } break; case PICK_FROM_CAMERA: if (resultCode == Activity.RESULT_OK) { try { path = mImageCaptureUri.getPath(); Log.e("", "Imagepath from Camera =" + path); // bitmap = BitmapFactory.decodeFile(path); } catch (Exception e) { e.printStackTrace(); } if (path != null) { dialog1 = ProgressDialog.show(new_upload.this, "", "Processing Please wait...", true); //new ImageDisplayTask1().execute(); new ImageDisplayTask().execute(); } } break; default: } } // ********************Picture obtained from the camera or from gallery code // ends here********************************************* // ******************Image Display on Button when new_selected from gallery // Ashynch Code starts here******************************** class ImageDisplayTask extends AsyncTask<Void, Void, String> { @Override protected String doInBackground(Void... unsued) { Bitmap src = BitmapFactory.decodeFile(path); Bitmap dest = Bitmap.createBitmap(src.getWidth(), src.getHeight(), Bitmap.Config.ARGB_8888); //Bitmap dest = Bitmap.createScaledBitmap(src, src.getWidth(),src.getHeight(), true); SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss"); String dateTime = sdf.format(Calendar.getInstance().getTime()); // reading local `` String timestamp = dateTime + " " + roadworthynumber; SimpleDateFormat sdf1 = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss"); String dateTime1 = sdf1.format(Calendar.getInstance().getTime()); Imagename = dateTime1.toString().trim().replaceAll(":", "") .replaceAll("-", "").replaceAll(" ", "") + roadworthynumber + ".jpg"; Canvas cs = new Canvas(dest); Paint tPaint = new Paint(); tPaint.setTextSize(100); tPaint.setTypeface(Typeface.SERIF); tPaint.setColor(Color.RED); tPaint.setStyle(Style.FILL); cs.drawBitmap(src, 0f, 0f, null); float height = tPaint.measureText("yY"); cs.drawText(timestamp, 5f, src.getHeight() - height + 5f, tPaint); try { dest.compress(Bitmap.CompressFormat.JPEG, 70, new FileOutputStream(new File(cacheDir, Imagename))); dest.recycle(); src.recycle(); } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } return null; } @Override protected void onProgressUpdate(Void... unsued) { } @Override protected void onPostExecute(String serverresponse) { String error = "noerror"; Display currentDisplay = getWindowManager().getDefaultDisplay(); int dw = currentDisplay.getWidth(); int dh = currentDisplay.getHeight() - 100; Log.e("", "width= " + dw + " Height= " + dh); try { BitmapFactory.Options bmpFactoryOptions = new BitmapFactory.Options(); bmpFactoryOptions.inJustDecodeBounds = true; Bitmap bmp = BitmapFactory.decodeFile( Environment.getExternalStorageDirectory() + "/AUSRWC/" + Imagename, bmpFactoryOptions); int heightRatio = (int) Math.ceil(bmpFactoryOptions.outHeight / (float) dh); int widthRatio = (int) Math.ceil(bmpFactoryOptions.outWidth / (float) dw); if (heightRatio > 1 && widthRatio > 1) { if (heightRatio > widthRatio) { bmpFactoryOptions.inSampleSize = heightRatio; } else { bmpFactoryOptions.inSampleSize = widthRatio; } } bmpFactoryOptions.inJustDecodeBounds = false; bmp = BitmapFactory.decodeFile( Environment.getExternalStorageDirectory() + "/AUSRWC/" + Imagename, bmpFactoryOptions); if (buttonpressed == 1) { new_selectimage1.setImageBitmap(bmp); //Image set on ImageView } else if (buttonpressed == 2) { new_selectimage2.setImageBitmap(bmp);//Image set on ImageView } else if (buttonpressed == 3) { new_selectimage3.setImageBitmap(bmp);//Image set on ImageView } else if (buttonpressed == 4) { new_selectimage4.setImageBitmap(bmp);//Image set on ImageView } else if (buttonpressed == 5) { new_selectimage5.setImageBitmap(bmp);//Image set on ImageView } else if (buttonpressed == 6) { new_selectimage6.setImageBitmap(bmp);//Image set on ImageView } else if (buttonpressed == 7) { new_selectimage7.setImageBitmap(bmp);//Image set on ImageView } else if (buttonpressed == 8) { new_selectimage8.setImageBitmap(bmp);//Image set on ImageView } else if (buttonpressed == 9) { new_selectimage9.setImageBitmap(bmp);//Image set on ImageView } else if (buttonpressed == 10) { new_selectimage10.setImageBitmap(bmp); } else if (buttonpressed == 11) { new_selectimage11.setImageBitmap(bmp); } else if (buttonpressed == 12) { new_selectimage12.setImageBitmap(bmp); } else if (buttonpressed == 13) { new_selectimage13.setImageBitmap(bmp); } else if (buttonpressed == 14) { new_selectimage14.setImageBitmap(bmp); } else if (buttonpressed == 15) { new_selectimage15.setImageBitmap(bmp); } else if (buttonpressed == 16) { new_selectimage16.setImageBitmap(bmp); } else if (buttonpressed == 17) { new_selectimage17.setImageBitmap(bmp); } else if (buttonpressed == 18) { new_selectimage18.setImageBitmap(bmp); } else if (buttonpressed == 19) { new_selectimage19.setImageBitmap(bmp); } else if (buttonpressed == 20) { new_selectimage20.setImageBitmap(bmp); } } catch (Exc

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  • Become UIScrollViewDelegate delegate for UITableView

    - by Brian
    I have a UITableView instance variable. I want to be able to register my view controller to be the UIScrollViewDelegate for my UITableView controller. I have already tried tableView.delegate = self; But when scrolling, my methods - (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView - (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate don't get called. Any suggestions?

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  • Regex to repeat a capture across a CDL?

    - by richardtallent
    I have some data in this form: @"Managers Alice, Bob, Charlie Supervisors Don, Edward, Francis" I need a flat output like this: @"Managers Alice Managers Bob Managers Charlie Supervisors Don Supervisors Edward Supervisors Francis" The actual "job title" above could be any single word, there's no discrete list to work from. Replacing the ,  with \r\n is easy enough, as is the first replacement: Replace (^|\r\n)(\S+\s)([^,\r\n]*),\s With $1$2$3\r\n$2 But capturing the other names and applying the same prefix is what is eluding me today. Any suggestions?

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  • what is stack overflow

    - by Dimitris Baltas
    Back in the days as freshmen in University, when programming in C on Unix machines, a "stack overflow" error on run-time would occur causing a lot of thought on what went wrong. What exactly is "stack overflow" in programming? What are the possible reasons for its appearance? Can it occur in all programming languages? Does it have other names?

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  • Change UITableViewCell Height on Orientation Change

    - by Peter Zich
    I have a UITableView with cells containing variable-height UILabels. I am able to calculate the minimum height the label needs to be using sizeWithFont:constrainedToSize:lineBreakMode:, which works fine when the table view is first loaded. When I rotate the table view the cells become wider (meaning there are fewer lines required to display the content). Is there any way I can have the height of the cells redetermined by the UITableView during the orientation change animation or immediately before or after? Thank you.

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  • Android: getTag/setTag and IllegalArgumentException

    - by Sparafusile
    Yes, I know you need a unique resource id when calling the version of these functions that requires a key, but I cannot for the life of me figure out how to create a resource id that can be used in this way. A final variable in my class wont work and neither will a hard coded value. Both threw an IllegalArgumentException. So what gives, how do you use these methods? Spara

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  • Is Polymorphism and Method Overloading is almost the same thing in C++

    - by Maxood
    In C++, there are 2 types of Polymorphism: Object Polymorphism Function Polymorphism Function polymorphism is exactly the same thing as method or function overloading i.e. We use the same method names with different parameters and return types. Now the question is why do we have this fancy name Polymorphism in OOP? What distinctly distinguishes polymorphism from method overloading? Can someone explain with a scenario. Thanks

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  • When will the ValueConverter's Convert method be called in wpf

    - by sudarsanyes
    I have an ObservableCollection bound to a list box and a boolean property bound to a button. I then defined two converters, one that operates on the collection and the other operates on the boolean property. Whenever I modify the boolean property, the converter's Convert method is called, where as the same is not called if I modify the observable collection. What am I missing?? Snippets for your reference, xaml snipet, <Window.Resources> <local:WrapPanelWidthConverter x:Key="WrapPanelWidthConverter" /> <local:StateToColorConverter x:Key="StateToColorConverter" /> </Window.Resources> <StackPanel> <ListBox x:Name="NamesListBox" ItemsSource="{Binding Path=Names}"> <ListBox.ItemsPanel> <ItemsPanelTemplate> <WrapPanel x:Name="ItemWrapPanel" Width="500" Background="Gray"> <WrapPanel.RenderTransform> <TranslateTransform x:Name="WrapPanelTranslatation" X="0" /> </WrapPanel.RenderTransform> <WrapPanel.Triggers> <EventTrigger RoutedEvent="WrapPanel.Loaded"> <BeginStoryboard> <Storyboard> <DoubleAnimation Storyboard.TargetName="WrapPanelTranslatation" Storyboard.TargetProperty="X" To="{Binding Path=Names,Converter={StaticResource WrapPanelWidthConverter}}" From="525" Duration="0:0:2" RepeatBehavior="100" /> </Storyboard> </BeginStoryboard> </EventTrigger> </WrapPanel.Triggers> </WrapPanel> </ItemsPanelTemplate> </ListBox.ItemsPanel> <ListBox.ItemTemplate> <DataTemplate> <Grid> <Label Content="{Binding}" Width="50" Background="LightGray" /> </Grid> </DataTemplate> </ListBox.ItemTemplate> </ListBox> <Button Content="{Binding Path=State}" Background="{Binding Path=State, Converter={StaticResource StateToColorConverter}}" Width="100" Height="100" Click="Button_Click" /> </StackPanel> code behind snippet public class WrapPanelWidthConverter : IValueConverter { public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { ObservableCollection<string> aNames = value as ObservableCollection<string>; return -(aNames.Count * 50); } public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { throw new NotImplementedException(); } } public class StateToColorConverter : IValueConverter { public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { bool aState = (bool)value; if (aState) return Brushes.Green; else return Brushes.Red; } public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { throw new NotImplementedException(); } }

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  • iPhone - how to pass an object to a button action

    - by Mike
    I have to pass an object to an button's action... something like [myButton addTarget:self action:@selector(sendIt:MY_OBJECT) forControlEvents:UIControlEventTouchDown]; I cannot set a variable and use that on the method because I am on a static class. How do I do that? thanks for any help.

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  • iPhone - how to pass an object to a button action

    - by Mike
    I have to pass an object to an button's action... something like [myButton addTarget:self action:@selector(sendIt:MY_OBJECT) forControlEvents:UIControlEventTouchDown]; I cannot set a variable and use that on the method because I am on a static class. How do I do that? thanks for any help.

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  • How to better create stacked bar graphs with multiple variables from ggplot2?

    - by deoksu
    I often have to make stacked barplots to compare variables, and because I do all my stats in R, I prefer to do all my graphics in R with ggplot2. I would like to learn how to do two things: First, I would like to be able to add proper percentage tick marks for each variable rather than tick marks by count. Counts would be confusing, which is why I take out the axis labels completely. Second, there must be a simpler way to reorganize my data to make this happen. It seems like the sort of thing I should be able to do natively in ggplot2 with plyR, but the documentation for plyR is not very clear (and I have read both the ggplot2 book and the online plyR documentation. My best graph looks like this, the code to create it follows: the R code I use to get it is the following: library(epicalc) ### recode the variables to factors ### recode(c(int_newcoun, int_newneigh, int_neweur, int_newusa, int_neweco, int_newit, int_newen, int_newsp, int_newhr, int_newlit, int_newent, int_newrel, int_newhth, int_bapo, int_wopo, int_eupo, int_educ), c(1,2,3,4,5,6,7,8,9, NA), c('Very Interested','Somewhat Interested','Not Very Interested','Not At All interested',NA,NA,NA,NA,NA,NA)) ### Combine recoded variables to a common vector Interest1<-c(int_newcoun, int_newneigh, int_neweur, int_newusa, int_neweco, int_newit, int_newen, int_newsp, int_newhr, int_newlit, int_newent, int_newrel, int_newhth, int_bapo, int_wopo, int_eupo, int_educ) ### Create a second vector to label the first vector by original variable ### a1<-rep("News about Bangladesh", length(int_newcoun)) a2<-rep("Neighboring Countries", length(int_newneigh)) [...] a17<-rep("Education", length(int_educ)) Interest2<-c(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17) ### Create a Weighting vector of the proper length ### Interest.weight<-rep(weight, 17) ### Make and save a new data frame from the three vectors ### Interest.df<-cbind(Interest1, Interest2, Interest.weight) Interest.df<-as.data.frame(Interest.df) write.csv(Interest.df, 'C:\\Documents and Settings\\[name]\\Desktop\\Sweave\\InterestBangladesh.csv') ### Sort the factor levels to display properly ### Interest.df$Interest1<-relevel(Interest$Interest1, ref='Not Very Interested') Interest.df$Interest1<-relevel(Interest$Interest1, ref='Somewhat Interested') Interest.df$Interest1<-relevel(Interest$Interest1, ref='Very Interested') Interest.df$Interest2<-relevel(Interest$Interest2, ref='News about Bangladesh') Interest.df$Interest2<-relevel(Interest$Interest2, ref='Education') [...] Interest.df$Interest2<-relevel(Interest$Interest2, ref='European Politics') detach(Interest) attach(Interest) ### Finally create the graph in ggplot2 ### library(ggplot2) p<-ggplot(Interest, aes(Interest2, ..count..)) p<-p+geom_bar((aes(weight=Interest.weight, fill=Interest1))) p<-p+coord_flip() p<-p+scale_y_continuous("", breaks=NA) p<-p+scale_fill_manual(value = rev(brewer.pal(5, "Purples"))) p update_labels(p, list(fill='', x='', y='')) I'd very much appreciate any tips, tricks or hints. Thanks.

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  • How do I rename an R object?

    - by Milktrader
    I'm using the quantmod package to import financial series data from Yahoo. library(quantmod) getSymbols("^GSPC") [1] "GSPC" I'd like to change the name of object "GSPC" to "SPX". I've tried the rename function in the reshape package, but it only changes the variable names. The "GSPC" object has vectors GSPC.Open, GSPC.High, etc. I'd like my renaming of "GSPC" to "SPX" to also change GSPC.Open to SPX.Open and so on.

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  • Understanding Tcl Polymorphism

    - by Xofo
    In Tcl a variable and a procs can have the same name ... for instance I can have set container(alist) {} proc container a {puts " do something"} Um ... what other forms of polymorphism exist in tcl? ... I am looking at some code and I see stuff like this.

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  • Naming conventions for private members of .NET types

    - by Joan Venge
    Normally when I have a private field inside a class or a struct, I use camelCasing, so it would be obvious that it's indeed private when you see the name of it, but in some of my colleagues' C# code, I see that they use m_ mostly or sometimes _, like there is some sort of convention. Aren't .NET naming conventions prevent you from using underscores for member names? And when you mention the MS naming conventions or what not, they tell you it's the best way, but don't explain the reasoning behind it.

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  • .Net Library for parsing source code files?

    - by Jörg Battermann
    Does anyone know of a good .NET library that allows me to parse source code files, but not only .NET source code files (like java, perl, ruby, etc)? I need programmatic access to the contents of various source code files (e.g. class/method /parameter names, types, etc.). Has anyone come across something like this? I know within .NET it is reasonably possible and there are some libraries out there, but I need that to be abstracted to more types of programming languages.

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  • Papers on Software Methodology recommendation

    - by kunjaan
    Please recommend me software engineering/methodology/practices paper. So far I have enjoyed: 1968 Dijkstra : Go To Statement Considered Harmful Reason about correctness about program Nikalus Wirth : Program Development by Stepwise Refinement Not worried about program structure 1971 David Parnas : Information Distribution Aspects of Design Methodology 1972 Liskov : Design Methodology for Reliable Software Systems Extensible Language : Schuman and P Jourrand R. Balzer Structured Programming : Dahl - Hierarchical Program Structures 1971 Jim Morris Protection in Programming Languages 1973 Bill Wulf and Mary Shaw Global Variable Considered Harmful 1974 : Lisko and Zilles ADTs

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  • How to extract digit from the string using regex?

    - by Harikrishna
    I will have a different type of string(string will not have fixed format,they will be different every time) from them I want to remove some specific substring.Like the string can be OPTIDX 26FEB2009 NIFTY CE 2500 OPTIDX NIFTY 30 Jul 2009 4600.00 PE OPTSTK ICICIBANK 30 Jul 2009 700.00 PA I want to extract Rs.(digit) from those string and store it into one variable and then in those string there should not be Rs.(digit). What should be the regex for that to match Rupees ?

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  • Does Mootools prevents javascript closure 100%?

    - by terrani
    Hi, While I was talking about javascript closure to my friend, I was told that using Mootools can prevent closures 100%. To my knowledege, a variable causes a closure. How does Mootools itself prevents javascript closure? I think my friend is sayting that Mootools' functions are closure-safe functions. Any suggestions?

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  • Crazy VS Designer Errors

    - by BlueRaja
    Here's a strange one. After renaming a class, one of my forms began giving me errors in the designer, refusing to open. Funny thing is, the form worked just fine when I ran the program. I began reverting my changes to deduce the problem. I have now reverted completely back to the last commit - in which I know the form was working in the designer - cleaned the solution, and deleted the bin/ and obj/ folders, as well as the *.suo file for good measure. The form still does not display in designer. Here are the errors it gives: Could not find 'MyNamespace.MyControl'. Please make sure that the assembly that contains this type is referenced. If this type is a part of your development project, make sure that the project has been successfully built. The variable 'myControl1' is either undeclared or was never assigned. The variable is both declared and assigned, and MyControl builds fine (again, the form works fine when the program is actually run). Stranger still, if I try to create a new form and drag a MyControl onto it, I get this Entity-Framework error: Failed to create component 'MyControl'. The error message follows: 'System.ArgumentException: The specified named connection is either not found in the configuration, not intended to be used with the EntityClient provider, or not valid. at System.Data.EntityClient.EntityConnection.ChangeConnectionString(String newConnectionString) at System.Data.EntityClient.EntityConnection..ctor(String connectionString) at System.Data.Objects.ObjectContect.CreateEntityConnection(String connectionString) etc. etc. There is nothing wrong with my connection string: it worked before, and, again, it works when I actually run the program (the control already exists on the old form from the previous commit). Any ideas whatsoever? I am completely at a loss. [Edit] The only significant code: MyControl.cs public MyControl() { _entities = new MyEFEntities(); //Entity-framework generated class } MyForm.Designer.cs private void InitializeComponent() { this.myControl1 = new MyNamespace.MyControl(); ... this.Controls.Add(this.myControl1); } MyEFDatabase.Designer.cs public MyEFEntities() : base("name=MyEFEntities", "MyEFEntities") { ... } App.Config <connectionStrings> <add name="MyEFEntities" connectionString="metadata=res://*/MyEFDatabase.csdl|res://*/MyEFDatabase.ssdl|res://*/MyEFDatabase.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=MyDatabaseServer;Initial Catalog=MyDatabase;Integrated Security=True;MultipleActiveResultSets=True&quot;" providerName="System.Data.EntityClient" /> </connectionStrings> I've tried the "replace &quot; with '" trick - didn't help. [Edit2] It is happening to new projects also, but not immediately. Only after fiddling around a bit (it has something to do with adding a many-to-one relationship that EF did not figure out on its own), but I can't figure out the exact steps to reproduce.

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