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How to add a button to PreferenceScreen
...r PreferenceActivity, add these two lines to your onCreate:
addPreferencesFromResource(R.xml.preferences);
setContentView(R.layout.main);
The ListView in your layout will then be replaced by the preferences defined the usual way in res/xml/preferences.xml.
...
Get current clipboard content? [closed]
...
Following will give you the selected content as well as updating the clipboard.
Bind the element id with copy event and then get the selected text. You could replace or modify the text. Get the clipboard and set the new text. To get the exact formatting...
Getting “type or namespace name could not be found” but everything seems ok?
...To do this:
I right-clicked on my Solution in the Solution Explorer and selected
"Properties"
Then in "Common Properties" I selected "Project Dependencies".
Then in the Projects drop-down menu I selected the project that
relied on the library, and
Checked the box next to the library found under "...
python pandas remove duplicate columns
...,False,True].
Pandas allows one to index using boolean values whereby it selects only the True values. Since we want to keep the unduplicated columns, we need the above boolean array to be flipped (ie [True, True, False] = ~[False,False,True])
Finally, df.loc[:,[True,True,False]] selects only the...
Why use a READ UNCOMMITTED isolation level?
...on. This option has the same effect as setting NOLOCK on all tables in all SELECT statements in a transaction. This is the least restrictive of the four isolation levels.
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Find an element in DOM based on an attribute value
...ears the landscape has changed drastically. You can now reliably use querySelector and querySelectorAll, see Wojtek's answer for how to do this.
There's no need for a jQuery dependency now. If you're using jQuery, great...if you're not, you need not rely it on just for selecting elements by att...
What is __gxx_personality_v0 for?
This is a second-hand question from an OS development site, but it made me curious since I couldn't find a decent explanation anywhere.
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Custom toast on Android: a simple example
...yout element is "toast_layout". You must use this ID to inflate the layout from the XML, as shown here:
LayoutInflater inflater = getLayoutInflater();
View layout = inflater.inflate(R.layout.toast_layout,
(ViewGroup) findViewById(R.id.toast_layout_root));
ImageVi...
Socket send函数和recv函数详解以及利用select()函数来进行指定时间的阻塞 ...
Socket send函数和recv函数详解以及利用select()函数来进行指定时间的阻塞int send( SOCKET s, const char FAR *buf, int len, int flags ); 不论是客户还是服务器应用程序都用send函数来向TCP连接的...int send( SOCKET s, const char FAR *buf, int len, int flags );
...
Running multiple async tasks and waiting for them all to complete
...; sequence, Func<T, Task> action) {
return Task.WhenAll(sequence.Select(action));
}
Call it like this:
await sequence.ForEachAsync(item => item.SomethingAsync(blah));
Or with an async lambda:
await sequence.ForEachAsync(async item => {
var more = await GetMoreAsync(item);
...