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UITextField text change event

... From proper way to do uitextfield text change call back: I catch the characters sent to a UITextField control something like this: // Add a "textFieldDidChange" notification method to the text field control. In Objective-C: [textField addTarget:self ...
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Setting action for back button in navigation controller

...; Bool } extension UINavigationController { public func navigationBar(_ navigationBar: UINavigationBar, shouldPop item: UINavigationItem) -> Bool { // Prevents from a synchronization issue of popping too many navigation items // and not enough view controllers or viceversa fr...
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How does MongoDB sort records when no sort order is specified?

...teed to be that they are in the inserted order. They are not sorted by the _id field. Sometimes it can be look like it is sorted by the insertion order but it can change in another request. It is not reliable. share ...
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Applying function with multiple arguments to create a new pandas column

...f = pd.DataFrame({"A": [10,20,30], "B": [20, 30, 10]}) >>> df['new_column'] = np.multiply(df['A'], df['B']) >>> df A B new_column 0 10 20 200 1 20 30 600 2 30 10 300 or vectorize arbitrary function in general case: >>> def fx(x, y): ...
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Left-pad printf with spaces

...ructure). The indent is the number of spaces before the string. void print_with_indent(int indent, char * string) { printf("%*s%s", indent, "", string); } share | improve this answer ...
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How to make custom error pages work in ASP.NET MVC 4

... I looked everywhere to resolve this. This finally had the answer. I knew why it was doing it but for the heck of me I couldn't, without thinking drastically like what other people have said. I imagine I share 360Airwalk's pain when I say thank you for pointing this out....
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Applications are expected to have a root view controller at the end of application launch

... make sure self.window is initialized like self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease]; – Raptor Feb 13 '12 at 12:07 1 ...
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How to enter command with password for git pull?

...you asked for, but for http(s): you can put the password in .netrc file (_netrc on windows). From there it would be picked up automatically. It would go to your home folder with 600 permissions. you could also just clone the repo with https://user:pass@domain/repo but that's not really recommended...
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Parsing query strings on Android

... This will decode special characters and emoji to _. I had to go with stackoverflow.com/a/35638979/1155282 – Irshu Feb 6 '18 at 9:22 ...
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How do I update the notification text for a foreground service in Android?

... only by calling stopForground ); Example: private static final int NOTIF_ID=1; @Override public void onCreate (){ this.startForeground(); } private void startForeground() { startForeground(NOTIF_ID, getMyActivityNotification("")); } private Notification getMyActivityNotification(String...