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Android: How can I validate EditText input?
... @TextRule, @NumberRule, @Required, @Regex, @Email, @IpAddress, @Password, etc.,
You can add these annotations to your UI widget references and perform validations. It also allows you to perform validations asynchronously which is ideal for situations such as checking for unique username from a rem...
What is lazy loading in Hibernate?
...ibernate into loading all children simultaneously, e.g. by calling parent.getChildren().size().
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'sudo gem install' or 'gem install' and gem locations
...s will make the gems visible to gem list, uninstallable via gem uninstall, etc. without needing sudo access. Runnable scripts installed by gem or bundler can be put into your path by adding
$HOME/.gem/ruby/RUBYVERSION/bin
to your $PATH. gem itself tells you about this if it isn't set when you do ...
Add and Remove Views in Android Dynamically?
... views into the container dynamically, using inflate, addView, removeView, etc. There are some visibility control for better UX in the stock Android app. You need add a TextWatcher for the EditText view in each row: when the text is empty you need to hide the Add new button and the delete button. In...
How can I unstage my files again after making a local commit?
...de, as HEAD~1, HEAD~2, HEAD~3, for parent, grandparent, great-grandparent, etc. (technically it's finding the first parent in earlier generations).
When there's a merge, then commits have more than one parent. That's when the ^ caret comes into play--you can remember because it shows the branches ...
How to get a random number in Ruby
... @banister: wow, I was convinced that the new api (rand with range, bytes, etc...) was available directly through the Random object. rand with range will be in 1.9.3, and I'll make a feature request for bytes. I've edited my answer
– Marc-André Lafortune
Jun 2...
Can I set up HTML/Email Templates with ASP.NET?
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If you want to pass parameters like user names, product names, ... etc. you can use open source template engine NVelocity to produce your final email / HTML's.
An example of NVelocity template (MailTemplate.vm) :
A sample email template by <b>$name</b>.
<br />
Foreach e...
How do I display an alert dialog on Android?
...ilder(context);
builder1.setMessage("Write your message here.");
builder1.setCancelable(true);
builder1.setPositiveButton(
"Yes",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
builder1.se...
Get all files that have been modified in git branch
...really could be any commit at all, or anything that resolves to one (tags, etc.).
– twalberg
May 17 '12 at 19:12
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Allow anything through CORS Policy
..._app.conf file (where my_app is your app name). You can find this file in /etc/nginx/conf.d
If you do not have location / {} already you can just add it under server {}, then add add_header 'Access-Control-Allow-Origin' '*'; under location / {}.
The final format should look something like this:
s...