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How to change MenuItem icon in ActionBar programmatically
... a global Menu variable and initialize it in the onCreateOptionsMenu() and then use it in your onClick().
private Menu menu;
In your onCreateOptionsMenu()
this.menu = menu;
In your button's onClick() method
menu.getItem(0).setIcon(ContextCompat.getDrawable(this, R.drawable.ic_launcher));
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How to draw an empty plot?
...w, and also a coordinate system, so you need plot.new() and plot.window(), then you can start to add graph elements:
plot.new( )
plot.window( xlim=c(-5,5), ylim=c(-5,5) )
points( rnorm(100), rnorm(100) )
axis( side=1 )
example plot
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What is the most effective way for float and double comparison?
...ems were:
The implicit presumption in an algorithm that if a==b and b==c then a==c.
Using the same epsilon for lines measured in inches and lines measured in mils (.001 inch). That is a==b but 1000a!=1000b. (This is why AlmostEqual2sComplement asks for the epsilon or max ULPS).
The use of the sam...
How to enable cURL in PHP / XAMPP
...mment the line
;extension=php_curl.dll
in xampp\apache\bin\php.ini, and then restart the Apache service.
NB: In newer XAMPP versions, PHP has moved to root xampp folder xampp\php\php.ini.
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Android: how to hide ActionBar on certain activities
...le.
2.Find the activity tag for which you want to hide your ActionBar and then add ,
android:theme="@style/Theme.AppCompat.NoActionBar"
<activity
android:name=".MainActivity"
android:theme="@style/Theme.AppCompat.NoActionBar"
>
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How do I limit task tags to current project in Eclipse?
... close operation. (right click on the project in the project explorer and then "close project")
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Extracting numbers from vectors of strings
...numeric(sub("\\D+","",years)). If there were letters before and |or after, then gsub
– Onyambu
Mar 5 '18 at 7:25
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Format SQL in SQL Server Management Studio
... to format.
Ctrl+Shift+Q (This will open your query in the query designer)
Then just go OK
Voila! Query designer will format your query for you.
Caveat is that you can only do this for statements and not procedural code, but its better than nothing.
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Laravel Pagination links not including other GET parameters
...
...and then I scrolled down to see Mehdi's solution.
– bitlather
Mar 22 '14 at 23:20
2
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Get selected option from select element
...to return the text already there. So you need to fetch the text you want, then put it in the .text(string) method on the object you want to set, like I have above.
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