Applications – How to launch a pdf from a terminal?

I gain precious time by launching pdf from the terminal in Linux

evince ~/mypdf.pdf

What is the exact command that allows me to do that on Android?

This publication offers the following template:

am start -a android.intent.action.MAIN -n my.domain.myApp/my.domain.myApp.myClass

* How to modify this command to start a pdf **

Applications: is it possible to open new tabs / links next to the current tab in Chrome?

In Chrome (or Chrome Canary), I would like to be able to open new links / tabs next to the current tab I am in. If this were on a PC, the equivalent would be open tabs / links at the top of the tree / stack of tabs.

The best solution I have found is to select any piece of text on the current tab page, then do a "web search" from the pop-up context menu. This opens a tab next to the current tab, then I will use this tab for what I wanted to look for. However, this does not work to open links next to the current tab. And I would prefer that this could be done without the need for an alternative solution.

Applications: Is it possible to search for an open tab in Chrome?

Is there a way to find a currently open tab in Chrome (or Chrome Canary)? And then be brought to the focus of that tab instead of simply loading your URL into the current tab in which it is located.

Because of the way Chrome opens new tabs and links, throwing them to the right / bottom end of the stack of tabs (and if it's a new tab, it takes you with it, losing the currently focused tab you were in), it's a pain losing focus on the tab / place you were in and then having to examine a potentially long list of tabs to get back to where you were.

architecture: queries as a service for other applications (neo4j)

I am new to neo4j and the graphic I am forming will be used by third-party applications for some fixed (encrypted) queries. We can think of the classic "Who is Alice's friend?" question.

I would like these queries to be easily requested from the other applications, which can be developed in different languages, without having to redeploy each query or put too many layers between the client application and the neo4j engine (that for me would be slower responses) .

These questions are, of course, fully answered by Cypher queries or anyway using only neo4j database resources.

So, the graphic should act as a service for other applications: what is the best way to provide such functionality? I am aiming at two objectives: a) centralize the content of the query; b) minimize the layers above.

I came up with a couple of ideas:

  1. add a service layer in front of the graphics database, written in a language, to which customers can send requests
    • then the route would be a client (that is, Node.js) -> (Maybe rest?) -> service layer (Python?) -> Cypher (about Bolt) -> neo4j
  2. neo4j UDF
    • then the client (i.e. Node.js) -> works on Bolt -> neo4j
    • I did not understand if these would perform functions similar to the native ones
  3. customer (i.e. Node.js) -> Cypher over Bol -> neo4j
    • Of course, this would double the query logic in each client and potentially generate errors
  4. other options that I have not found / thought

If it were an SQL database, I would have written functions stored for everything and customers could simply do SELECT fx(data) – But being this neo4j, I would like to hear some advice.

The solution n. ° 2 seems to be the best for me: I don't care if that leaves customers the opportunity to issue other inquiries; Maybe I can block them with permissions.

Of course, if another graphics database offers better support for my needs today, I will also evaluate it.

Should there be read receipts in chat applications? What are the pros and cons?

I am building a chat application.

One of the things I wonder is if reading receipts, like many chat applications, are a good idea.

There are essentially four options:

  • There are no read receipts
  • Optional read receipts, default off
  • Optional read receipts, default on
  • Required reading receipts

On the one hand, they certainly provide useful information to the sender. On the other hand, they can also provide misleading information. For example, when a user drives and cannot respond, the sender may feel ignored. Seeing the reading receipts make people feel terrible and you should turn them off

It tends to agree with much in the article, but at the same time, most chat applications such as WhatsApp, iMessage have at least optional reading receipts, so you can expect this functionality. On the other hand, Slack has never received read receipts and many users don't seem to want this. Does it depend on context (work versus friends)?

Optional reading receipts seem to provide a sensitive midpoint, but even this has a significant impact on the dynamics of the conversation, and turning them off can generate questions about why you turn them off, so this only provides a partial solution at best. the cases.

Because of all this, I'm leaning a little on the side of not having read receipts, but I'm really not sure.

Any ideas or studies on this?

domains: are "web applications for smartphones" native and progressive without domain?

I am a webmaster specialized in creating, maintaining and SEOing web applications of the subtype websites (or alternatively, solely-web-browser-executed-applications)

I have never created what is commonly called a "web application for smartphones," such as:

  • Native web application
  • Progressive web application: A native application that can be run natively And by a means such as the web browser and accessed from a
    smartphone desktop-icon;
    The user interface version of "mobile website" in the execution of a web browser is generally identical to the user interface version of "smartphone" in a native execution of this application

Both native and progressive web applications, according to the definitions I have had, can be downloaded from a app store how Google Play Store or Apple store.

My problem

Since native and progressive web applications run on the global network and its corresponding Internet infrastructure, I have a problem understanding whether or not one of those applications should have a web domain, that is, whether they are based on a web domain or web without domain

My question

Do native and progressive "web applications for smartphones" have no domain?

4 Go-To applications for review and exam preparation

After so many weeks of writing essays, reports, academic papers and other academic assignments, it is time to start reviewing the exams. This period of student life is really difficult, especially for those who were not serious enough with classroom activities. Students who did not take notes during conferences have many problems preparing for exams. As a general rule, his memory is not sharp enough to take into account all the details his teacher said. Students fight long before their exams. They have to spend long hours in libraries reading a lot of sources and researching thoroughly. Don't you want to be among those students who have their hands full? Benefit from the most popular academic aid applications that will make the review more effective and less stressful. Download them on your mobile phone and review them for college exams like a pro.
Blue study
If you are a fan of flashcards, consider a Study Blue study application. It is a free application, so you can download it to your device and get quick help from the crowdsourcing material library. This application can be used to make and share cards, add audio and images to your study materials, verify the knowledge of the subject performing the tests and maintain progress. After downloading this application, you will have access to an impressive library of study materials and useful guides, created by students.

SpeedyPaper Advisor
A more useful application for all students is SpeedyPaper Adviser. This writing application will help you improve your grades and prepare for exams more effectively. With SpeedyPaper Adviser on your phone, you will get unlimited access to the huge database of college and university documents. You can see samples of various academic assignments. Find essays, reports, research papers, necessary course work and increase your grades. Students will know how to create, structure and cite tasks. Customer service is available 24 hours a day, so if you have trouble finding a required document, you can contact the managers and ask all their questions. Numerous positive reviews about this application show that it is really great and worth a try. To know all the functions, download an application in your hand or visit its website.

This application was created to help students have a smooth review. University students can use Gojimo both online and on mobile devices. An application contains useful content for students and some questionnaires. You can select an exam for which you want to review, and it goes with a list of questions that can be asked. If you have not found a mandatory topic, you can contact support through instant messaging.

It is a more useful application for students who will prepare for exams. It is free, easy to use and is a good option for self-learning. With Quizlet on your device, you can learn with the help of vocabulary cards, share them with your classmates, learn foreign languages ​​and get more information about coding, math, science, history and other university subjects. Many students benefit from Quizlet and leave their positive comments about this study application.




We make many websites and applications. And in addition, we also help create malware and viruses. We carry out legal cyber attacks on websites and much more, but we only focus on creating websites and applications.


web applications: Python web application without database

I hope you are well.
I have started a Python web application project. The identification of the project does not have a back-end, therefore, using Django will be an overload for me and the project. I wanted to know if there is any Python web framework, which only deals with the front-end.

Thank you
With respect Umer Selmani

Applications: Is there an Android application to share selected contact lists (Groups) with another Android user?

I have a small business with two team members (me and another colleague). I am looking for an application (preferably free) where I can share selected contact lists (or contact groups) in real time with my colleague. For example, if I receive a call from a potential customer and keep their number with some notes (say your requirements), my colleague should also be able to see it on your phone. Is there an application for this? If not, what would be a good way to achieve this goal? I don't want to share all my contacts with him, only the selected ones (let's say I save a part of some particular groups / lists). I know that I can also simply "send" the contact through messaging services, but I would prefer to share automatically, which is updated in real time.

PD New to this group, I hope the question is relevant to the group.