大约有 41,000 项符合查询结果(耗时:0.0451秒) [XML]

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Download a file with Android, and showing the progress in a ProgressDialog

...t gets updated. For this I need a simple function that can download a file and show the current progress in a ProgressDialog . I know how to do the ProgressDialog , but I'm not sure how to display the current progress and how to download the file in the first place. ...
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What are the dangers when creating a thread with a stack size of 50x the default?

I'm currently working on a very performance critical program and one path I decided to explore that may help reduce resource consumption was increasing my worker threads' stack size so I can move most of the data ( float[] s) that I'll be accesing onto the stack (using stackalloc ). ...
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How does variable assignment work in JavaScript?

...perty of an existing object. In the second example, you are assigning a brand new object. a = b = {}; a and b are now pointers to the same object. So when you do: a.foo = 'bar'; It sets b.foo as well since a and b point to the same object. However! If you do this instead: a = 'bar'; you...
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How to parse XML in Bash?

..., but I didn't feel like this much editing should be done to someone else, and comments don't allow formatting, so... rdom () { local IFS=\> ; read -d \< E C ;} Let's call that "read_dom" instead of "rdom", space it out a bit and use longer variables: read_dom () { local IFS=\> ...
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Android emulator freezing OS X v10.9 (Mavericks) with HAXM

I just updated to OS X v10.9 (Mavericks), and now whenever I start up any of my emulators, as soon as the emulator starts up, my entire computer freezes with a spinning progress indicator in the center of the screen (not a beachball, the progress indicator is similar to what you see when shutting...
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How to avoid null checking in Java?

...y either don't know or don't trust the contracts they are participating in and defensively overcheck for nulls. Additionally, when writing their own code, they tend to rely on returning nulls to indicate something thus requiring the caller to check for nulls. To put this another way, there are two...
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Eclipse secure storage

... file containing the password with -eclipse.password, see Eclipse SDK Help and Bug 241223. The complete procedure is as follows (this is on Linux, on Windows it should work as well if you change the paths): Exit Eclipse Delete the directory ~/.eclipse/org.eclipse.equinox.security Create a text fi...
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What columns generally make good indexes?

As a follow up to " What are indexes and how can I use them to optimise queries in my database? " where I am attempting to learn about indexes, what columns are good index candidates? Specifically for an MS SQL database? ...
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How do I get IntelliJ IDEA to display directories?

I've been trying out IntelliJ IDEA for JavaScript editing, and I like it so far, but I'm having a small problem with a new project. ...
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What is an OS kernel ? How does it differ from an operating system? [closed]

I am not able to understand the difference between a kernel and an operating system. I do not see any difference between them. Is the kernel an operating system? ...