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Why fragments, and when to use fragments instead of activities?
...et short) answers and not just give me a link to a manual .anyway, besides extra features to work on special classes , can you think of advantages and disadvantages of working with fragments?
– android developer
May 9 '12 at 14:48
...
Error - trustAnchors parameter must be non-empty
...karounds as well, but those have their own side effects which will require extra future maintenance, for no payoff whatsoever.
The next-best workaround is to add the row
javax.net.ssl.trustStorePassword=changeit
to the files
/etc/java-9-openjdk/management/management.properties
/etc/java-11-open...
What is the difference between `git merge` and `git merge --no-ff`?
...author mentioned "specific branch topology" means that in --no-ff case an extra merge commit serves as the marker of the merge. The pros is explicit merge marker with names of the author and the merger. The cons is non-linear history that looks like a set of converging railroad tracks. A possible p...
Can JavaScript connect with MySQL?
...d and write your data. As it accesses the data nodes directly, there is no extra latency from passing through a MySQL Server and need to convert from JavaScript code//objects into SQL operations. If for some reason, you’d prefer it to pass through a MySQL Server (for example if you’re storing ta...
How to update a menu item shown in the ActionBar?
...xtView) findViewById(R.id.title);
menu.getItem(0).setTitle(
getString(R.string.payFor) + " " + title.getText().toString());
menu.getItem(1).setTitle(getString(R.string.payFor) + "...");
return true;
}
And worked like a charm to me you can find OnPrepareOptionsMenu here
...
My Understanding of HTTP Polling, Long Polling, HTTP Streaming and WebSockets
... great answers from others that cover a lot of ground. Here's a little bit extra.
The only advantage of WebSockets over plugins like Java Applets, Flash or Silverlight is that WebSockets are natively built into browsers and does not rely on plugins.
If by this you mean that you can use Java Ap...
“static const” vs “#define” vs “enum”
...ironment for space to a concern. That said, neither enum nor #define uses extra space, per se. The value will appear in the object code as part of the instructions rather than being allocated storage in the data segment or in heap or on the stack. You'll have some space allocated for the static c...
Why NSUserDefaults failed to save NSMutableDictionary in iOS?
...y object in NSUserDefaults . The key type in NSMutableDictionary is NSString , the value type is NSArray , which contains a list of object which implements NSCoding . Per document, NSString and NSArray both are conform to NSCoding .
...
Index (zero based) must be greater than or equal to zero
...
Your second String.Format uses {2} as a placeholder but you're only passing in one argument, so you should use {0} instead.
Change this:
String.Format("{2}", reader.GetString(0));
To this:
String.Format("{0}", reader.GetString(2));
...
Populating a razor dropdownlist from a List in MVC
... {
Value = x.UserRoleId.ToString(),
Text = x.UserRole
});
return new SelectList(roles, "Value", "Text");
}
public ActionResult AddNewUser()
{
var model = new UserRoleViewModel
...