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Using Java 8's Optional with Stream::flatMap
The new Java 8 stream framework and friends make for some very concise java code, but I have come across a seemingly-simple situation that is tricky to do concisely.
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How do you switch pages in Xamarin.Forms?
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In the App class you can set the MainPage to a Navigation Page and set the root page to your ContentPage:
public App ()
{
// The root page of your application
MainPage = new NavigationPage( new FirstContentPage() );
}
Then in your first ...
Setting PayPal return URL and making it auto return?
...al procedure is that you pass a notify_url parameter with the request, and set up a page which handles and validates IPN notifications, and PayPal will send requests to that page to notify you when payments/refunds/etc. go through. That IPN handler page would then be the correct place to update the...
In Java, is there a way to write a string literal without having to escape quotes?
Say you have a String literal with a lot of quotation marks inside it. You could escape them all, but it's a pain, and difficult to read.
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CALayers didn't get resized on its UIView's bounds change. Why?
...uikit/reference/… -- "By default, the origin of the bounds rectangle is set to (0, 0) but you can change this value to display different portions of the view."
– jdc
Mar 22 '13 at 22:43
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Fixed Table Cell Width
...the <col> tag manage table styling for all rows but you will need to set the table-layout:fixed style on the <table> or the tables css class and set the overflow style for the cells
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/col
<table class="fixed">
<col wi...
How do I turn off the unlimited whitespace in IntelliJ editor?
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File menu -> Settings -> Editor -> General -> Virtual Space and uncheck 'Allow placement of caret after end of line' . You may also uncheck the other options in the Virtual Space panel.
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How do you see the entire command history in interactive Python?
I'm working on the default python interpreter on Mac OS X, and I Cmd + K (cleared) my earlier commands. I can go through them one by one using the arrow keys. But is there an option like the --history option in bash shell, which shows you all the commands you've entered so far?
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How do I solve the INSTALL_FAILED_DEXOPT error?
...ly the emulator still boots with the same disk space warning but factory resetting it (Settings --> Backup and Restore inside the emulator) solved it entirely for me.
Just a bit odd that it doesn't work out of the box with default settings.
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Allowed memory size of 33554432 bytes exhausted (tried to allocate 43148176 bytes) in php
...ust add this line before the line where you get error in your php file
ini_set('memory_limit', '-1');
It will take unlimited memory usage of server, it's working fine.
Consider '44M' instead of '-1' for safe memory usage.
sh...