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Handler vs AsyncTask vs Thread [closed]
...s
in your own code:
Synchronization with the main thread if you post back results to the user interface
No default for canceling the thread
No default thread pooling
No default for handling configuration changes in Android
And regarding the AsyncTask, as the Android Developer's ...
App Inventor 2 TaifunImage 拓展，图像高级处理功能，剪裁，压缩，翻转等 ...
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示例用法：缩放和叠加
一个叠加图像的png格式示例，尺寸为1200x1800(纵向)，透明背景。
将图像精确缩放到所需尺寸，同时裁剪图像以保持宽高比，然后添加叠加图像(可以是水...
How to Create a circular progressbar in Android which rotates on it?
...{
while (pStatus <= 100) {
handler.post(new Runnable() {
@Override
public void run() {
progressBar.setProgress(pStatus);
txtProgress.setText(pStatus + " %");...
Dictionary vs Object - which is more efficient and why?
...at - thanks! I've tried the same on my machine - object with slots is the most efficient approach (I got ~7sec).
– tkokoszka
Aug 26 '09 at 19:43
6
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Web-scraping JavaScript page with Python
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Any alternatives for those of us programming within Windows?
– Hoshiko86
Jun 5 '17 at 19:54
2
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What is the best way to solve an Objective-C namespace collision?
... are working at IBM, you could prefix them with "IBM"; if you work for Microsoft, you could use "MS"; and so on. Sometimes the initials refer to the project, e.g. Adium prefixes classes with "AI" (as there is no company behind it of that you could take the initials). Apple prefixes classes with NS a...
Android ListView with different layouts for each row
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Since you know how many types of layout you would have - it's possible to use those methods.
getViewTypeCount() - this methods returns information how many types of rows do you have in your list
getItemViewType(int position) - returns information which layout type you should use based ...
How does Windows 8 Runtime (WinRT / Windows Store apps / Windows 10 Universal App) compare to Silver
...ere. It does add quite a lot of new concepts in comparison to COM of old, most of which come directly from .NET - for example, WinRT object model has delegates, and events are done .NET-style (with delegates and add/remove subscriber methods, one per event) rather than the old COM model of event sou...
What are best practices that you use when writing Objective-C and Cocoa? [closed]
...onse:(NSCachedURLResponse *)cachedResponse
{
return nil;
}
I find most web calls are very singular and it's more the exception than the rule you'll be wanting responses cached, especially for web service calls. Implementing the method as shown disables caching of responses.
Also of interes...
throwing exceptions out of a destructor
Most people say never throw an exception out of a destructor - doing so results in undefined behavior. Stroustrup makes the point that "the vector destructor explicitly invokes the destructor for every element. This implies that if an element destructor throws, the vector destruction fails... The...