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How to get existing fragments when using FragmentPagerAdapter
...agerAdapter , as a helper class that implements the management of tabs and all details of connecting a ViewPager with associated TabHost . I have implemented FragmentPagerAdapter just as same as it is provided by the Android sample project Support4Demos .
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Android and in TextView
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In Kotlin, it works very well. I replace all the empty spaces with this, and it will ellipsize from the last characters. str.replace(" ", "\u00A0") yields, "Hello wor..." instead of "Hello..."
– Seop Yoon
Feb 23 '18 at 2:27
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quick random row selection in Postgres
... make It sense to use a N less than SELECT COUNT(*)?, I mean, not use all the values in the table but only a part of them?
– Juan
Mar 14 '11 at 11:00
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What is the difference between concurrency, parallelism and asynchronous methods?
Concurrency is having two tasks run in parallel on separate threads. However, asynchronous methods run in parallel but on the same 1 thread. How is this achieved? Also, what about parallelism?
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How to get object size in memory? [duplicate]
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Lists in C# are preallocated to whatever sizes the framework designers decided to go with, and then increased when needed. By default it's probably something like 10 elements. So you won't notice any size difference until you add enough element...
Sqlite primary key on multiple columns
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@pratnala In standard SQL, yes. In SQLite, NULL is allowed in primary keys. This answer emphasizes that if you want more standard behavior, you need to add the NOT NULL yourself. My answer is just the very basic syntax for a multi-column primary key.
– B...
Resizing an image in an HTML5 canvas
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So what do you do if all the browsers (actually, Chrome 5 gave me quite good one) won't give you good enough resampling quality? You implement them yourself then! Oh come on, we're entering the new age of Web 3.0, HTML5 compliant browsers, super ...
Concatenate multiple files but include filename as section headers
... Of note, passing -n to grep also yields line numbers which allows you to write simple linters with pinpointing that could be picked up by, e.g., emacs.
– DepressedDaniel
Mar 13 '17 at 3:23
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org.xml.sax.SAXParseException: Content is not allowed in prolog
...nother thing that often happens is a UTF-8 BOM (byte order mark), which is allowed before the XML declaration can be treated as whitespace if the document is handed as a stream of characters to an XML parser rather than as a stream of bytes.
The same can happen if schema files (.xsd) are used to va...
Insert a line at specific line number with sed or awk
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mac users: with homebrew, brew install gnu-sed and then use this with gsed
– cwd
Jan 10 '15 at 17:58
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