大约有 44,000 项符合查询结果(耗时:0.0319秒) [XML]

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Android Spinner : Avoid onItemSelected calls during initialization

...droid application with a Spinner and a TextView . I want to display the selected item from the Spinner's drop down list in the TextView. I implemented the Spinner in the onCreate method so when I'm running the program, it shows a value in the TextView (before selecting an item from the drop d...
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Get the Highlighted/Selected text

... Getting the text the user has selected is relatively simple. There's no benefit to be gained by involving jQuery since you need nothing other than the window and document objects. function getSelectionText() { var text = ""; if (window.getSelecti...
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What is the Java string pool and how is “s” different from new String(“s”)? [duplicate]

...: String s = GlobalStringObjectCache.get("hello"); – Charles Goodwin May 30 '16 at 12:07 7 Copy-p...
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How can I display a list view in an Android Alert Dialog?

...s); builderSingle.setIcon(R.drawable.ic_launcher); builderSingle.setTitle("Select One Name:-"); final ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(DialogActivity.this, android.R.layout.select_dialog_singlechoice); arrayAdapter.add("Hardik"); arrayAdapter.add("Archit"); a...
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Rails find record with zero has_many records associated [duplicate]

..._joins(:photos).where(photos: {id: nil}) which will result in SQL like: SELECT cities.* FROM cities LEFT OUTER JOIN photos ON photos.city_id = city.id WHERE photos.id IS NULL Using includes: City.includes(:photos).where(photos: {id: nil}) will have the same result, but will result in much ug...
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How can I select from list of values in SQL Server

... would be to use a find an replace with UNION to get the distinct values. SELECT 1 UNION SELECT 1 UNION SELECT 1 UNION SELECT 2 UNION SELECT 5 UNION SELECT 1 UNION SELECT 6 Applied to your long line of comma delimited text Find and replace every comma with UNION SELECT Add a SELECT in front of ...
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Handling colon in element ID with jQuery

.../ Timing have a look at this jsbin which tests and compares the speed of selection methods of IDs with colons you need to open your firebug console to get the results. I tested it with firefox 10 and jquery 1.7.2 basically I did a select 10'000 times of a div with a colon in the id - with the d...
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Optimising Android application before release [closed]

...extView performs allocations internally whenever you call setText() with a CharSequence. But it doesn't allocate anything with the setText(char[] text, int start, int len) variant. This isn't documented, and no one answered when I asked about it. There are many ones like this. And this is one of t...
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jQuery - select all text from a textarea

...can I make it so when you click inside a textarea, its entire content gets selected? 6 Answers ...
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String vs. StringBuilder

... .NET are immutable). It works by keeping an internal buffer, an array of char. Calling Append() or AppendLine() adds the string to the empty space at the end of the char array; if the array is too small, it creates a new, larger array, and copies the buffer there. So in the example above, String...