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Rails: Missing host to link to! Please provide :host parameter or set default_url_options[:host]
...tion for action_mailer won't help. The use case is similar to this: Rails.application.routes.url_helpers.message_image_url(2)
– Boti
Jul 8 '14 at 8:50
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How long should SQL email fields be? [duplicate]
... are hundreds longer ones up to the limit of our column (255) but they are apparently fake by visual inspection.
The peak of the length distribution is at 19.
There isn't long tail. Everything falls off sharply after 38.
We cleaned up the DB by throwing away anything longer than 40. The good news ...
How to detect total available/free disk space on the iPhone/iPad device?
...the Settings I have "0 bytes" available space. And when I enter and use my app, this method reports about 150mb free space. Then I fill up this remaining space and only then the app crashes. So I would say that this method gives you more correct information than what you see in Settings.
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How to set timer in android?
...ary.
import java.util.Timer;
import java.util.TimerTask;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.Handler.Callback;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public...
Setting Android Theme background color
...get it working. Please note that I want the change to be across the entire app, not just for a single activity. Here is my code:
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How to update Python?
... by bit-version I mean 64-bit vs. 32-bit. For example, these answers would apply to updating from 64-bit Python-2.7.10 to 64-bit Python-2.7.11, ie: the same bit-version. While it is possible to install two different bit versions of Python together, it would require some hacking, so I'll save that ex...
Swift compiler error: “non-modular header inside framework module”
...jority of people running into this issues is caused after they switch from Application Target to Framework Target and start adding C and Objective C headers into framework's umbrella header expecting it to have a same behaviour as application's Bridging Header, which behaves differently. The umbrell...
Is there a way to create xxhdpi, xhdpi, hdpi, mdpi and ldpi drawables from a large scale image?
...ns of this images for different screen resolutions supported by Android in appropriate folders.
16 Answers
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Making the Android emulator run faster
...sluggish. For some devices, like the Motorola Droid and the Nexus One, the app runs faster in the actual device than the emulator. This is a problem when testing games and visual effects.
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AsyncTask Android example
...class edited below with all suggestions to save confusion.
import android.app.Activity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.provider.Settings.System;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.view.View.On...