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Animated loading image in picasso
... attention to weak references and declare a Callback object in this way in order to avoid garbage collection (otherwise onSuccess could never get called): final Callback loadedCallback = new Callback() { @Override public void onSuccess() { // your code ...
HashMap with multiple values under the same key
...t types associated with a key. You have to take care by maintaining proper order of inserting and retrieving from Object[].
Example:
Consider, we want to store Student information. Key is id, while we would like to store name, address and email associated to the student.
//To make entry int...
Google Maps V3: How to disable “street view”?
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disableDefaultUI: true is not necessary in order to remove only the street view button.
– Eido95
Jun 4 '18 at 13:10
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How to force LINQ Sum() to return 0 while source collection is empty
... doesn't allow you to use "??" operator to set 0 for empty collection.
In order to avoid this situation you need to make LINQ expect "double?". You can do it by casting "(double?)l.Amount".
It doesn't affect the query to SQL but it makes LINQ working for empty collections.
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How to access random item in list?
...fle<T>(this IEnumerable<T> source)
{
return source.OrderBy(x => Guid.NewGuid());
}
}
For a strongly typed list, this would allow you to write:
var strings = new List<string>();
var randomString = strings.PickRandom();
If all you have is an ArrayList, you can...
How to check if a view controller is presented modally or pushed on a navigation stack?
...elf.navigationController != nil would mean it's in a navigation
stack.
In order to handle the case that the current view controller is pushed while the navigation controller is presented modally, I have added some lines of code to check if the current view controller is the root controller in the n...
How to Decrease Image Brightness in CSS
...ond, Firefox jumped straight into non-prefixed filter, third, you have the order wrong, non-prefixed should be the last one, fourth, syntax for IE's -ms-filter is different (progid:DXImageTransform, etc), fifth, syntax for Firefox is different and requires SVG ( See docs ), sixth, new features aren'...
How to add minutes to my Date
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In order to avoid any dependency you can use java.util.Calendar as follow:
Calendar now = Calendar.getInstance();
now.add(Calendar.MINUTE, 10);
Date teenMinutesFromNow = now.getTime();
In Java 8 we have new API:
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Reset CSS display property to default value
...u have to actually append the generated element to the <body> tag in order to get the computed style, at least in Chrome.
– dimplex
Jan 7 '17 at 16:04
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How to hide reference counts in VS2013?
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