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Android Fragments and animation
How should you implement the sort of sliding that for example the Honeycomb Gmail client uses?
6 Answers
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ggplot2 legend to bottom and horizontal
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library(reshape2) # for melt
df <- melt(outer(1:4, 1:4), varnames = c("X1", "X2"))
p1 <- ggplot(df, aes(X1, X2)) + geom_tile(aes(fill = value))
p1 + scale_fill_continuous(guide = guide_legend()) +
theme(legend.position="bottom")
This should give you the desired result.
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Synchronizing a local Git repository with a remote one
...the remote ones, and if there are files in local repositories that do not exist in the remote, the local files get removed.
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What is the difference between double-ampersand (&&) and semicolon (;) in Linux Bash?
What is the difference between ampersand and semicolon in Linux Bash ?
3 Answers
3
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What's valid and what's not in a URI query?
... also be defined as a delimiter within the generic or scheme-specific syntax and the appearance of the character must be within data.
The current standard for generic URIs is RFC 3986, which has this to say:
2.2. Reserved Characters
URIs include components and subcomponents that are delimited by ...
内存优化总结:ptmalloc、tcmalloc和jemalloc - 操作系统(内核) - 清泛网 - ...
...择合适的内存管理算法会带来明显的性能提升。比如nginx， 它在每个连接accept后
需求
系统的物理内存是有限的，而对内存的需求是变化的, 程序的动态性越强，内存管理就越重要，选择合适的内存管理算法会带来明显的性能...
How do you crash a JVM?
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The closest thing to a single "answer" is System.exit() which terminates the JVM immediately without proper cleanup. But apart from that, native code and resource exhaustion are the most likely answers. Alternatively you can go looking on Sun's bug tracker for bugs in your v...
Determine the line of code that causes a segmentation fault?
... Use bt as a shorthand for backtrace.
– rustyx
May 27 '19 at 7:53
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What is this date format? 2011-08-12T20:17:46.384Z
...y.
The java.time classes use ISO 8601 by default when parsing/generating textual representations of date-time values.
The Instant class represents a moment on the timeline in UTC with a resolution of nanoseconds. That class can directly parse your input string without bothering to define a formattin...
What is the difference between join and merge in Pandas?
... as pd
left = pd.DataFrame({'key': ['foo', 'bar'], 'val': [1, 2]}).set_index('key')
right = pd.DataFrame({'key': ['foo', 'bar'], 'val': [4, 5]}).set_index('key')
left.join(right, lsuffix='_l', rsuffix='_r')
val_l val_r
key
foo 1 4
bar 2 5
The same functionali...