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Android ImageView Zoom-in and Zoom-Out
... //image=context.getResources().getDrawable(R.drawable.icon);
setFocusable(true);
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
//here u can control the width and height of the images........ this line is very important
im...
Matplotlib plots: removing axis, legends and white spaces
...= random.random((5,5))
img = plt.imshow(data, interpolation='nearest')
img.set_cmap('hot')
plt.axis('off')
plt.savefig("test.png", bbox_inches='tight')
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Pros and cons of AppSettings vs applicationSettings (.NET app.config / Web.config)
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The basic <appSettings> is easier to deal with - just slap in a <add key="...." value="..." /> entry and you're done.
The downside is: there's no type-checking, e.g. you cannot safely assume your number that you wanted to configu...
How to change max_allowed_packet size
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The max_allowed_packet variable can be set globally by running a query.
However, if you do not change it in the my.ini file (as dragon112 suggested), the value will reset when the server restarts, even if you set it globally.
To change the max allowed packet for...
Can I set background image and opacity in the same property?
I can see in CSS references how to set image transparency and how to set a background image . But how can I combine these two in order to set a transparent background image?
...
SQL keys, MUL vs PRI vs UNI
...L | |
+-------+---------+------+-----+---------+-------+
1 row in set (0.00 sec)
A table with one column and an index on the one column has a MUL:
mysql> create table penguins (foo INT, index(foo));
Query OK, 0 rows affected (0.01 sec)
mysql> desc penguins;
+-------+---------+----...
Django using get_user_model vs settings.AUTH_USER_MODEL
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Using settings.AUTH_USER_MODEL will delay the retrieval of the actual model class until all apps are loaded. get_user_model will attempt to retrieve the model class at the moment your app is imported the first time.
get_user_mode...
Is it possible to group projects in Eclipse?
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Eclipse offers working sets. You can reduce the projects shown in the Package Explorer and other places to whichever projects you defined into the working set. You can also show the union of various sets, and similar gymnastics.
You can define/edi...
Django Cookies, how can I set them?
... check Peter's answer below for a builtin solution :
This is a helper to set a persistent cookie:
import datetime
def set_cookie(response, key, value, days_expire = 7):
if days_expire is None:
max_age = 365 * 24 * 60 * 60 #one year
else:
max_age = days_expire * 24 * 60 * 60
expir...
Validating an XML against referenced XSD in C#
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You need to create an XmlReaderSettings instance and pass that to your XmlReader when you create it. Then you can subscribe to the ValidationEventHandler in the settings to receive validation errors. Your code will end up looking like this:
using System.X...