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Using [UIColor colorWithRed:green:blue:alpha:] doesn't work with UITableView seperatorColor?
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You need to divide by 255.0
Because I hardly ever use values between 1.0 and 0.0, I created a very simple UIColor category that does the messy looking division by itself: (from http://github.com/Jon889/JPGeneral)
//.h file
@interface UIColor ...
How do you change text to bold in Android?
...in the layout.xml file:
android:textStyle
Examples:
android:textStyle="bold|italic"
Programmatically the method is:
setTypeface(Typeface tf)
Sets the typeface and style in which the text should be displayed. Note that not all Typeface families actually have bold and italic variants, so you ...
XPath OR operator for different nodes
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All title nodes with zipcode or book node as parent:
Version 1:
//title[parent::zipcode|parent::book]
Version 2:
//bookstore/book/title|//bookstore/city/zipcode/title
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Remove plot axis values
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Remove numbering on x-axis or y-axis:
plot(1:10, xaxt='n')
plot(1:10, yaxt='n')
If you want to remove the labels as well:
plot(1:10, xaxt='n', ann=FALSE)
plot(1:10, yaxt='n', ann=FALSE)
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Getting All Variables In Scope
Is there a way to get all variables that are currently in scope in javascript?
10 Answers
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Is having an 'OR' in an INNER JOIN condition a bad idea?
...o improve the speed of an immensely slow query (several minutes on two tables with only ~50,000 rows each, on SQL Server 2008 if it matters), I narrowed down the problem to an OR in my inner join, as in:
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C语言结构体里的成员数组和指针 - C/C++ - 清泛网 - 专注C/C++及内核技术
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struct test t;
我们用gdb跟进去，对于实例t，我们可以看到：
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# t实例中的p就是一个野指针
(gdb) p t
$1 = {i = 0, c = 0 '\000', d = 0...
Fetch the row which has the Max value for a column
Table:
35 Answers
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How does Activity.finish() work in Android?
...lled finish() will run to completion. The finish() operation will not even begin until you return control to Android.
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Which iomanip manipulators are 'sticky'?
I recently had a problem creating a stringstream due to the fact that I incorrectly assumed std::setw() would affect the stringstream for every insertion, until I changed it explicitly. However, it is always unset after the insertion.
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