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Does it make sense to use “as” instead of a cast even if there is no null check? [closed]
...en you are sure of the type. Besides generating a more sensible exception, it also fails fast. If you're wrong about your assumption about the type, your program will fail immediately and you'll be able to see the cause of failure immediately rather than waiting for a NullReferenceException or Argum...
How to check if a file contains a specific string using Bash
... a file contains a specific string or not in bash. I used this script, but it doesn't work:
11 Answers
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What does LayoutInflater in Android do?
...(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view;
/* We inflate the xml which gives us a view */
view = mInflater.inflate(R.layout.my_list_custom_row, parent, false);
/* Get the item in the adapter */
MyObjec...
UIPopovercontroller dealloc reached while popover is still visible
... Here I got a simple code that should present a UIImagePickerController within a UIPopoverController :
3 Answers
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WCF chokes on properties with no “set ”. Any workaround?
...d setter, so that only subclasses (and the DataContractSerializer, because it cheats :) may modify the value.
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How to change progress bar's progress color in Android
...an horizontal progress bar in my Android application, and I want to change its progress color (which is Yellow by default). How can I do it using code (not XML)?
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How to convert a string to lower case in Bash?
..." | awk '{print tolower($0)}'
hi all
Non-POSIX
You may run into portability issues with the following examples:
Bash 4.0
$ echo "${a,,}"
hi all
sed
$ echo "$a" | sed -e 's/\(.*\)/\L\1/'
hi all
# this also works:
$ sed -e 's/\(.*\)/\L\1/' <<< "$a"
hi all
Perl
$ echo "$a" | perl -n...
Why do we check up to the square root of a prime number to determine if it is prime?
To test whether a number is prime or not, why do we have to test whether it is divisible only up to the square root of that number?
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Renew Provisioning Profile
...r device (in the left list)
Click on "Add device to provisioning portal"
Wait until it's done !
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How to get an enum which is created in attrs.xml in code
I created a custom View (find it here ) with an declare-styleable attribute of type enum. In xml I can now choose one of the enum entries for my custom attribute. Now I want to create an method to set this value programmatically, but I can not access the enum.
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