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How can I update a single row in a ListView?
...ormation Michelle.
You can indeed get the right view using View#getChildAt(int index). The catch is that it starts counting from the first visible item. In fact, you can only get the visible items. You solve this with ListView#getFirstVisiblePosition().
Example:
private void updateView(int index){...
Does hosts file exist on the iPhone? How to change it? [closed]
...'t work. Then i tried to change encoding settings, and got it! You have to convert your host file to ANSI in Notepad++ before you save it. For whom failed to get the host file working; click "Convert to ANSI" under "Encoding" menu.
– trkaplan
Sep 26 '10 at 12:1...
Run two async tasks in parallel and collect results in .NET 4.5
...var task1 = Sleep(5000);
var task2 = Sleep(3000);
int[] result = await Task.WhenAll(task1, task2);
Console.WriteLine("Slept for a total of " + result.Sum() + " ms");
}
private async static Task<int> Sleep(int ms)
{
Con...
Why is auto_ptr being deprecated?
...
@HowardHinnant interesting doc! it is strange in a sense that if std::sort() is has a specialization for std::unique_ptr to use the move semantic as needed. I wonder why std::sort() can't be specialized for std::auto_ptr to correct the cop...
What's wrong with overridable method calls in constructors?
...ideMe();
}
class Child extends Base {
final int x;
Child(int x) {
this.x = x;
}
@Override
void overrideMe() {
System.out.println(x);
}
}
new Child(42); // prin...
Unicode Processing in C++
...n 22.4.1.4 "Class template codecvt" - discusses the codecvt class used for converting between character encodings (including UTF-8, UTF-16 and UTF-32). There is more about Unicode support peppered throughout the document, but these seem to be the most critical sections on the subject.
...
How to check if an object is an array?
...ts a list of strings, or a single string. If it's a string, then I want to convert it to an array with just the one item so I can loop over it without fear of an error.
...
PreparedStatement with list of parameters in a IN clause [duplicate]
...t possibleValues = ...
StringBuilder builder = new StringBuilder();
for( int i = 0 ; i < possibleValue.size(); i++ ) {
builder.append("?,");
}
String stmt = "select * from test where field in ("
+ builder.deleteCharAt( builder.length() -1 ).toString() + ")";
PreparedStateme...
Get Image size WITHOUT loading image into memory
...
As the comments allude, PIL does not load the image into memory when calling .open. Looking at the docs of PIL 1.1.7, the docstring for .open says:
def open(fp, mode="r"):
"Open an image file, without loading the raster data"
There are a few file operations in the sourc...
各编程语言读写文件汇总 - C/C++ - 清泛网 - 专注C/C++及内核技术
...一种：fgets、fputs简单读写，一般用于处理文本文件。
int main(int argc, char* argv[])
{
FILE *fp = NULL;
/*打开文件*/
if((fp = fopen("test.txt", "w+")) == NULL)
{
printf("文件打开出错，请检查文件是否存在！\n");
return -1;
}
else
{
pri...