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Reading an image file into bitmap from sdcard, why am I getting a NullPointerException?
...g.ARGB_8888;
Bitmap bitmap = BitmapFactory.decodeFile(photoPath, options);
selected_photo.setImageBitmap(bitmap);
or
http://mihaifonoage.blogspot.com/2009/09/displaying-images-from-sd-card-in.html
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git + LaTeX workflow
...changes have been made to each chapter, instead of having to figure it out from the logs of one big file.
Using Git efficiently:
Use branches!. There is perhaps no better advice I can give. I've found branches to be very helpful to keep track of "different ideas" for the text or for "different st...
Getting the current Fragment instance in the viewpager
...3 tabs on ViewPager . I have a menu option. As shown in the onOptionsItemSelected() , by selecting an option, I need to update the fragment that is currently visible. To update that I have to call a method which is in the fragment class. Can someone please suggest how to call that method?
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jQuery AJAX file upload PHP
...t type="file" onchange="saveFile(this)" >
<br><br>
Before selecting the file Open chrome console > network tab to see the request details.
<br><br>
<small>Because in this example we send request to https://stacksnippets.net/upload/image the response code will ...
How to have the formatter wrap code with IntelliJ?
...sions of IntelliJ, the option is under Settings / Editor / Code Style. And select Wrap when typing reaches right margin.
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How to Correctly Use Lists in R?
...dresses the question of the difference between [] and [[]].
In short [[]] selects a single item from a list and [] returns a list of the selected items. In your example, x = list(1, 2, 3, 4)' item 1 is a single integer but x[[1]] returns a single 1 and x[1] returns a list with only one value.
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JavaScript before leaving the page
...er if they want to leave the page or not, you cannot redirect them if they select to stay on the page. If they select to leave, the browser will go where they told it to go.
You can use onunload to do stuff before the page is unloaded, but you cannot redirect from there (Chrome 14+ blocks alerts ...
How to iterate over values of an Enum having flags?
... .Split(new[] { ", " }, StringSplitOptions.None)
.Select(v => (Items)Enum.Parse(typeof(Items), v));
// This method will always end up with the most applicable values
value = Items.Bar | Items.Baz;
values = value.ToString()
.Split(new[] { ", " }, StringSplit...
Slicing of a NumPy 2d array, or how do I extract an mxm submatrix from an nxn array (n>m)?
I want to slice a NumPy nxn array. I want to extract an arbitrary selection of m rows and columns of that array (i.e. without any pattern in the numbers of rows/columns), making it a new, mxm array. For this example let us say the array is 4x4 and I want to extract a 2x2 array from it.
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Why do we need a fieldset tag?
... without using tables. The fieldset tag can be used to create boxes around selected elements and the legend tag will give a caption to those elements. In this way form elements can be grouped together into identified categories.
Different browsers may display the default fieldset border in differen...