Found one solution for WIFI (works for Android 4.3, 4.4):

1. Connect to WIFI network (e.g. &#39;Alex&#39;)
2. Settings-&gt;WIFI
3. Long tap on connected network&#39;s name (e.g. on &#39;Alex&#39;)
4. Modify network config-&gt; Show advanced options
5. Set proxy settings

Soundcloud&#39;s API gives the duration of it&#39;s tracks as milliseconds. JSON looks like this:

    &quot;duration&quot;: 298999

I&#39;ve tried many functions I found on here to no avail. I&#39;m just looking for something to convert that number to something like looks like this:

    4:59

Here&#39;s one that got close, but doesn&#39;t work. It doesn&#39;t stop the seconds at 60. It goes all the way to 99 which makes no sense. Try entering &quot;187810&quot; as a value of ms, for example.

    var ms = 298999,
    min = Math.floor((ms/1000/60) &lt;&lt; 0),
    sec = Math.floor((ms/1000) % 60);

    console.log(min + &#39;:&#39; + sec);

Thanks for your help!

If you could add in support for hours, too, I would be grateful.

Converting milliseconds to minutes and seconds with Javascript

For an array with multiple dimensions, we usually need to write a `for` loop for each of its dimensions. For example:

    vector&lt; vector&lt; vector&lt;int&gt; &gt; &gt; A;
    
    for (int k=0; k&lt;A.size(); k++)
    {
        for (int i=0; i&lt;A[k].size(); i++)
        {
            for (int j=0; j&lt;A[k][i].size(); j++)
            {
                do_something_on_A(A[k][i][j]);
            }
        }
    }
    
    double B[10][8][5];
    for (int k=0; k&lt;10; k++)
    {
        for (int i=0; i&lt;8; i++)
        {
            for (int j=0; j&lt;5; j++)
            {
                do_something_on_B(B[k][i][j]);
            }
        }
    }

You see this kind of `for-for-for` loops in our code frequently. How do I use macros to define the `for-for-for` loops so that I don&#39;t need to re-write this kind of code every time? Is there a better way to do this?


Clean ways to write multiple &#39;for&#39; loops

Could you please help me: is it possible to set proxy settings in Android (especially in Chrome)? I have to change IP on Android during the testing. Or there is some soft which can help me to solve this issue...

How to change proxy settings in Android (especially in Chrome)

<p>Could you please help me: is it possible to set proxy settings in Android (especially in Chrome)? I have to change IP on Android during the testing. Or there is some soft which can help me to solve this issue...</p>


I am a little confused about the Firebase pricing model, special concern is the connections or more precisely concurrent connections. 

Let&#39;s have an example of a mobile app for iOS called FanZONE:

*User will create groups during football matches. They will comment on the actual game and the comments are immediately displayed on each members screen.* 

Does this scenario means that each user who is participating on commenting/viewing counts for one connection?  
So if a group contains 100 users who actively follow the screen and from time to time comment is there 100 connections each 90 minutes long?  
What about users who have the app in the background and the app checks each 5 minutes the score. Is this connection as well 90 minutes long or only a fraction of time every 5 minutes?

Clarify the Firebase connections

I have installed `Android SDK 22.3` and `JDK 1.7 update 21` on `Win7 x64`. Now I created an empty android application project using `intelliJ 13.0.1` (also use Emulator as target device) and tried to build the project, but encountered the `&#39;Error: Please select Android SDK&#39;`.

So I choose `Emulator` as the `Target Device`, but I could not select my AVD, as there is a `Error: Cannot find any configured Android SDK`.

In the Project Structure, it clearly shows &#39;Android 4.4.2 platform&#39; as Project SDK. So I am totally confused, don&#39;t know how to resolve the issue.

ps. I was upgrading `intelliJ 12.1.2` to `intelliJ 13.0.1`, and all the settings were automatically inherited from 12.1.2 when launching 13.0.1, but it seems not all the settings were exactly copied over to 13.0.1, which is unexpected.  

cheers 

intelliJ IDEA 13 error: please select Android SDK

While on a break point, how do I see the call stack to find the callee method/function?

Android Studio - Where can I see callstack while debugging an android app?

I have an Android project that has been developed entirely within Android Studio (currently version 4.2, gradle version 1.9-all). I want to add functionality from Google Play Services.

The project is unable to resolve `GooglePlayServicesUtil`, and when I enter the import manually (shown below), I get `Cannot resolve symbol &#39;common&#39;`.

    import com.google.android.gms.common.GooglePlayServicesUtil;

Any idea what I need to do to get `GooglePlayServicesUtil` to resolve?

## What I&#39;ve Tried
From the [Google Play Services Setup](http://developer.android.com/google/play-services/setup.html) it looks like I just have to add the `com.google.android.gms:play-services:4.+` dependency to my `build.gradle` file (and resync project files with gradle) to make the SDK available to my project. I do get an &quot;exploded bundle&quot; in `ProjectName/module/build/exploded-bundles`, but that doesn&#39;t seem like it does the trick.

I have Google Play Services, Android Support Repository and Google Repository installed from the SDK Manager already. I&#39;ve also deleted and reinstalled them multiple times :)

Edit:

Might I need to manually add google_play_services as a Project/Global Library? I&#39;ve attempted with no success.

I&#39;m trying to verify that I&#39;m developing against the Platform API with Google Services (if that&#39;s even possible), but I&#39;m not sure that&#39;s the case. Nothing I change seems to do anything.

The External Libraries of my project shows:

* &lt; Android API 19 Platform &gt;
* &lt; 1.7 &gt;
* joda-time-2.3
* support-v4-13.0.0

## Source Code

This is my ProjectName/module/build.gradle file:

    buildscript {
        repositories {
            mavenCentral()
        }
        dependencies {
            classpath &#39;com.android.tools.build:gradle:0.7.+&#39;
        }
    }

    apply plugin: &#39;android&#39;

    repositories {
        mavenCentral()
    }

    android {
        compileSdkVersion 19
        buildToolsVersion &#39;19.0.1&#39;
        defaultConfig {
            minSdkVersion 17
            targetSdkVersion 19
            versionCode 1
            versionName &quot;1.0&quot;
        }
        buildTypes {
            release {
                runProguard true
                proguardFiles getDefaultProguardFile(&#39;proguard-android.txt&#39;), &#39;proguard-rules.txt&#39;
            }
        }
        signingConfigs {
        }
        productFlavors {
        }
    }

    dependencies {
        compile &#39;com.google.android.gms:play-services:4.+&#39;
        compile &#39;joda-time:joda-time:2.3@jar&#39;
    }

The `com.google.android.gms.version` number resolves fine in my manifest. Here is my ProjectName/module/src/main/AndroidManifest.xml file:

    &lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
    &lt;manifest xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
        package=&quot;com.example.android&quot; &gt;

        &lt;uses-sdk android:minSdkVersion=&quot;17&quot; android:targetSdkVersion=&quot;19&quot;/&gt;

        &lt;application
            android:allowBackup=&quot;true&quot;
            android:icon=&quot;@drawable/ic_launcher&quot;
            android:label=&quot;@string/app_name&quot;
            android:theme=&quot;@style/AppTheme&quot; &gt;
            &lt;activity
                android:name=&quot;com.example.android.MainActivity&quot;
                android:label=&quot;@string/app_name&quot; &gt;
                &lt;intent-filter&gt;
                    &lt;action android:name=&quot;android.intent.action.MAIN&quot; /&gt;

                    &lt;category android:name=&quot;android.intent.category.LAUNCHER&quot; /&gt;
                &lt;/intent-filter&gt;
            &lt;/activity&gt;
            &lt;activity android:name=&quot;.SecondActivity&quot;/&gt;

            &lt;meta-data android:name=&quot;com.google.android.gms.version&quot;
                android:value=&quot;@integer/google_play_services_version&quot; /&gt;

            &lt;provider
                android:name=&quot;.DataProvider&quot;
                android:authorities=&quot;com.example.android.provider&quot; &gt;
            &lt;/provider&gt;

            &lt;receiver android:name=&quot;.WidgetProvider&quot; &gt;
                &lt;intent-filter&gt;
                    &lt;action android:name=&quot;android.appwidget.action.APPWIDGET_UPDATE&quot; /&gt;
                &lt;/intent-filter&gt;
                &lt;meta-data android:name=&quot;android.appwidget.provider&quot;
                       android:resource=&quot;@xml/widget_info&quot; /&gt;
            &lt;/receiver&gt;

            &lt;service android:name=&quot;.DatabaseService&quot; /&gt;
            &lt;service android:name=&quot;.WidgetProvider$UpdateService&quot; /&gt;
        &lt;/application&gt;

    &lt;/manifest&gt;

Here is my MainActivity, where I&#39;m trying to check whether GooglePlayServices is Available:

    package com.example.android;

    import android.app.Activity;
    import android.os.Bundle;
    import android.util.Log;

    import com.google.android.gms.common.GooglePlayServicesUtil;

    public class MainActivity extends Activity {
        private static final String TAG = &quot;MainActivity&quot;;

        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
        }

        @Override
        public void onResume() {
            Log.i(TAG, &quot;onResume&quot;);
            GooglePlayServicesUtil.isGooglePlayServicesAvailable(getApplicationContext());
        }
    }


Import Google Play Services library in Android Studio

Using adb, how can I find out the which permissions an Android application requires?

Because I want to display the permissions of multiple applications on different devices, viewing them in `Google Play` or `Settings` &gt; `Applications manager` requires too much manual work.

Listing permissions of Android application via adb

How can I clear the previous ssl proxy setting of NPM? 
well, I search a lot, but all post I got is mainly about how to `set` proxy in corporate network.

I try to set proxy to nothing:

    npm config set http-proxy
    npm config set https-proxy


the first command pass yet the second one warn that:

    npm WARN invalid config proxy=&quot;&quot;
    npm WARN invalid config Must be a full url with &#39;http://&#39;

is the warning neglectable and I have successfully clear the proxy setting?

How to clear https proxy setting of NPM?

`bower install` behind a proxy fails in timeout with the following settings (some set are useless...) :

    git config --global http.proxy fr-proxy.example.com:3128
    git config --global https.proxy fr-proxy.example.com:3128
    
    export http_proxy=http://fr-proxy.example.com:3128
    export https_proxy=http://fr-proxy.example.com:3128
    
    npm config set proxy http://fr-proxy.example.com:3128
    npm config set https-proxy http://fr-proxy.example.com:3128
    
    npm config set registry http://registry.npmjs.org/

I have also tried an install/uninstall of bower and a `bower clean cache`.

bower behind a proxy

I&#39;m trying to use Bower for a web app, but find myself hitting some sort of proxy issues:

    D:\&gt;bower search jquery
    bower retry         Request to https://bower.herokuapp.com/packages/search/jquery failed with ECONNRESET, retrying in 1.2s
    bower retry         Request to https://bower.herokuapp.com/packages/search/jquery failed with ECONNRESET, retrying in 2.5s
    bower retry         Request to https://bower.herokuapp.com/packages/search/jquery failed with ECONNRESET, retrying in 6.8s
    bower retry         Request to https://bower.herokuapp.com/packages/search/jquery failed with ECONNRESET, retrying in 15.1s
    bower retry         Request to https://bower.herokuapp.com/packages/search/jquery failed with ECONNRESET, retrying in 20.3s
    bower ECONNRESET    Request to https://bower.herokuapp.com/packages/search/jquery failed: tunneling socket could not be established, cause=Parse Error

Relevant points:
 
 - I can browse to https://bower.herokuapp.com/packages/search/jquery and it returns a full json response.
 - I can use git to clone, both using the git:// protocol and http(s).
 - I can use NPM directly without these issues
 - I&#39;ve tried using Fiddler to determine what&#39;s being blocked, but it doesn&#39;t detect any calls from the Bower command.  I can see calls from NPM commands in Fiddler.
 - I&#39;ve searched the Bower issues list, seen similar issues, but they either have no solution or it doesn&#39;t seem quite the same as mine.

Any ideas?

Bower calls blocked by corporate proxy

I have the following scenario: I have an env variable `$SOME_IP` defined and want to use it in a nginx block. Referring to the [nginx documentation](http://wiki.nginx.org/CoreModule) I use the `env` directive in the `nginx.conf` file like the following:

    user www-data;
    worker_processes 4;
    pid /run/nginx.pid;

    env SOME_IP;

Now I want to use the variable for a `proxy_pass`. I tried it like the following:

    location / {
        proxy_pass http://$SOME_IP:8000;
    }


But I end up with this error message: `nginx: [emerg] unknown &quot;some_ip&quot; variable`

nginx: use environment variables

I am unable to install SASS through command prompt. 

I tried below steps 

    c:\gem install sass

I am getting below error:

    ERROR:  Could not find a valid gem &#39;sass&#39; (&gt;= 0), here is why:
              Unable to download data from https://rubygems.org/ - Errno::ECONNREFUSED: No connection could be made because the target machine actively refused it. - connect(2) (https://rubygems.org/latest_specs.4.8.gz)

Please help me,


How can I set a proxy server for gem?

To get to the IP address of an example website, you just visit

    subdomain.example.com

However, if I try to visit

    subdomain.2.1.33.111 (example ip)

Firefox returns an error.  
Why?

How to access the subdomain of an IP address in the browser?

As the title says. I need to be able to retrieve the IP address the docker hosts and the portmaps from the host to the container, and doing that inside of the container. 

How to get the IP address of the docker host from inside a docker container

What&#39;s the correct way to get all client&#39;s IP Addresses from `http.Request`? In `PHP` there are a lot of [variables][1] that I should check. Is it the same on Go? 

One that I found is:

    req.RemoteAddr

And is the request case sensitive? for example `x-forwarded-for` is the same as `X-Forwarded-For` and `X-FORWARDED-FOR`? (from `req.Header.Get(&quot;X-FORWARDED-FOR&quot;)`)

  [1]: https://stackoverflow.com/questions/15699101/get-the-client-ip-address-using-php

Correct way of getting Client&#39;s IP Addresses from http.Request

Consider the case, 
I want to crawl websites frequently, but my IP address got blocked after some day/limit.

So, how can change my IP address dynamically or any other ideas?


Change IP address dynamically?

I have a website on a VPS.

The issue I am having is that when I enter the IP of the server, it links to the website.  
Even when entering mail.domain.com, it does the same thing.

How do I disable that, so a visitor would get a message or be directed to the domain?

I tried disabling the IP and mail a record on cloud flare but it didn&#39;t work.

My setup is:

    VPS on Linux Debian 
    Nginx
    no control panel just command line
    Cloudflare
    DNS setup with BIND


Content Type	Original Author	Original Content on Stackoverflow
Question	Maksim Alekseychik	View Question on Stackoverflow
Solution 1 - Android	Maksim Alekseychik	View Answer on Stackoverflow

How to change proxy settings in Android (especially in Chrome)

Android Problem Overview

Android Solutions

Solution 1 - Android

Clean ways to write multiple 'for' loops

Converting milliseconds to minutes and seconds with Javascript

Attributions