In this case, you do not need any physical devices and hardware to test and review the application, and you can easily check and test the operating system and application using the application environment simulator. Android SDK toolbox has Android Device Emulator simulation tools and software that can be used to simulate the application environment. Using this software, the user can easily simulate the application environment and operating system.AVDs allow you to simulate the environment of different types of applications without the need for hardware or device. Even if you have the necessary hardware and device, it is better to learn how to work with this simulator software . When using AVDs, the user determines the configuration of the virtual machine. Configuration includes screen resolution and density.You can even create multiple AVDs and run them simultaneously and in parallel. By doing this, you can also configure different devices at the same time.
Note:
You should note that if you stop the AVD while operating, it will cause the program to crash. It takes about 10 minutes for an app to launch and run for the first time, and about 3 minutes for newer devices.Once you have launched the AVD and come up, it is time to design and configure the GUI.
Android emulator shortcuts
The shortcuts for doing some things in Android emulator software are as follows:
- Alt + Enter:
Used to zoom in on Android emulator software.
- Ctrl + F11:
Used to change the screen orientation from landscape to portrait mode or vice versa.
- F8:
Used to turn the network on or off.
Android simulator speed optimization
When creating a simulator to simulate the application environment, two options are shown to you so that you can choose one of them. Snapshot and Use Host GPU options
Note:
You may think you can select both when a window appears to select two options. But in reality this is not the case and you can only choose one option. If you select both options, you will encounter an error message.
Snapshot:
If you select this option when creating the emulator, it will load at high speed for the second time you want to run the emulator and simulate the application environment . The high speed of loading the simulator for the second time is due to the fact that the first time all the necessary information and device modes are stored and there is no need for further review and processing.
Use Host GPU:
If this option is your choice when creating the emulator, the speed will increase significantly. Because AVD removes all the information from the graphics card on the host computer, it speeds it up.
Intel system image
You may want to run AVD with an image based on the ARM CPU and Intel CPI architecture.
Applications designed and built using Xamarin can be launched on Android , iOS and Windows Phone platforms and operating systems. Another type of application is single-page or multi-page applications that are used. This tutorial teaches you how to build a variety of single-page or multi-page applications.
What are single-page applications?
Single-page applications, or SPAs for short, are often used to describe all applications and applications designed and built for the web. SPAs, like websites, can be accessed through browsers, or they can be accessed simultaneously through native applications and applications on desktops or mobile phones. Gmail, Facebook, Netflix, Google Maps, Twitter , Trello, Instagram and Jira are examples of one-page apps.SPAs are user-side applications and do not send the user to the server to get things done because they are loaded from the server only once, which allows the user to work without having to deal with extra pages and the loading speed of heavy pages. High speed can reach its goal.
How do single-page applications work?
To answer this question, we need to compare the architecture of single-page applications with other applications to be able to answer this question.
Steps of operation of single-page applications:
- Users enter what they want in the browser search bar to meet their needs and achieve the goal.
- The browser also refers to the server to respond to the user's request and needs and sends a request to the server to receive the Html file from the server.
- The server quickly sends the requested Html file to the browser along with some styles, scripts and links to the browser.
- The browser also provides the user with an Html file received from the server.In this case, the user is faced with a blank or colored page that refuses to load and execute code.- In this case, too, the application receives the data, prepares the display, and transfers the changes into the page code or DOM.- In this case, the application is ready to be displayed and presented to the user, and the user can view the desired page and meet his needs.
Using MediaPlayer, the user can play different types of audio files and categorize them or access them through audio albums. This program has features that include the ability to show the duration of the song, rewind or forward songs, change songs, access to all audio files on the device through this MediaPlayer.
What you will learn in this tutorial is as follows:
- MediaPlayer and its applications - How to create a MediaPlayer project - Familiarity with different types of MediaPlayer methods and their applicationsThere are different ways to play audio in Android , one of which is very useful and convenient is MediaPlayer. In MediaPlayer there are also some methods that can be used to play audio.
- Start () method:
Using this method, you can play the audio file. If this method is called, the audio file can start playing from the beginning.
- Pause () method:
This method is also used to stop playing audio files. In this case, if the audio file has already been played using the start () method, you can use pause () to stop it. Of course, if we stop the audio file and try to play it again, we use the start () method. In this way, using this method, the audio file will be played from where it was, not from the beginning.
- Reset () method:
Used to reset MediaPlayer.
- IsPlaying () method:
This method is also used to check if music is playing or not. It also returns true or false values and says whether the music is playing or not.
- SeekTo () method:
It should be noted that this method takes a value of type int and moves the audio file to the same position. For example, giving a value of 26 to this method can cause the audio file to start playing from 26 seconds.
- GetCurrentPosition () method:
This method can also send the current position of the player. Returns the audio file in any situation.
Users send each other a lot of important information through WhatsApp every day, and if hackers have access to this information, people may have to pay a lot of compensation, parents may also decide to take control of their children's performance by hacking their account sometimes, and take immediate action to help their children if they make a mistake on the social network.In this article, we will try to take a look at how hackers hack WhatsApp and the steps that you can take in order to increase the security of your information and protect them from such people, but first, it is necessary to give a brief explanation about WhatsApp.
What is WhatsApp?
WhatsApp is one of the most popular social networks that allows people to communicate with other people for free, and also has other features such as video and voice calls that all people can use to communicate easily, you can also get help from each other or even hold important meetings through this application, in fact, WhatsApp has become a necessity in everybody’s lives and many users are accustomed to using it.
What is the reason for WhatsApp popularity?
One of the reasons for the popularity of WhatsApp is that it is easy to use, which has made it possible for all Internet users, from beginners to professionals, to use it, of course, it is worth mentioning that this ease of use has caused parents to be worried more and more about their children.
Can WhatsApp be hacked?
The answer is definitely yes, there are many ways to access the information of people in WhatsApp, which we will answer the questions that How do hackers hack WhatsApp? And What are the methods of it? In the following.
How do hackers hack WhatsApp account?
There are different types of WhatsApp hacking methods, depending on whether the hacker has access to the phone he/she intend to hack its account or not, which we will discuss in more detail below.
1- The hackers access to the phone which they intend to hack its WhatsApp account:
- Using the QR CODE:
This method is very easy and can help parents who want to check their children's messages, in this method, you only need to scan the QR CODE in order to access the information of people in WhatsApp.
- Installing a spy app:
Installing a spy app on the mobile of the person you want to hack WhatsApp is one of the easiest ways you can access other people's information in WhatsApp is through installing malware.
2- The hackers do not have access to the phone that they intend to hack its account:
Most hacks are done while they do not have access to the phone which they want to hack, and at the same time they may use the following methods to hack other people's WhatsApp account.
People who deal with site design have definitely come across WordPress to date and are aware of the countless benefits of using it, in this article, we are going to discuss WordPress as well as the way of moving it to a new host or server, in various articles on the DotNek site , you can find out the reasons for the popularity of this system, among which we can mention the possibility of working with this system easily, high security, providing quick updates and so on, which can be considered as the reasons why the fans of this system is increasing day by day.Now, let’s move on to the main point, you may need to move your WordPress from one host to a new host or server, in which case you will need to take the steps which are going to be mentioned below.Furthermore, you may be wondering how stressful it can be to move to a new host or server, but after reading this article you can easily do it, but before that, we need to give a brief overview of WordPress.
What is WordPress?
In general, it is an open-source content system that is available for free to various users, and they can use it in order to launch a personal and even commercial website , as we have mentioned, this system is an open-source system which means that site owners can have access to its source code which can help them view and modify it easier.
How to transfer WordPress from one Host to another?
As you know, sometimes it is necessary to change the host of your site for various reasons, you can get help from experts in this field that you will eventually have to pay a lot of money, another solution which doesn’t need lots of money, is to try to do it by yourself, so if you want to do the immigration work by yourself, you need to take some steps, which we are going to mention in the following section.
- Backup your website files:
The first step in migrating is to back up your entire site with the help of various plugins available, so that you can easily use the information you have backed up in the event of any problems during the immigration.As we have mentioned earlier, there are several plugins that you can use in order to back up, in which you usually use the internal settings in order to manage the backup of files, the number of times and the location of the backup.Among the plugins available for this purpose, we can mention WPvivid, which has many capabilities that can do this process in the best possible way, among all the features that this plugin has, it is possible to filter large files, split backup, remote storage compatibility, multi-site support, and so on.
Hackers are very talented in the field of computers and regularly add to their capabilities in this field and access people's information in different ways, they may get help from hacking emails, which can do a lot of damage to users' information security , which we will discuss in more detail below.
What is phishing?
This attack is a kind of social engineering attack that hackers can use easily to access important user information, such as credit card numbers, important documents in the user system, and so on, all of these emails are very attractive and somehow encourage the user to click on them, and finally, when the user is aroused by fear, anxiety, etc., he/she clicks on them, and then most of them even prefer to click on malicious links which are given in the email that cause the entire user system to be hacked, and the hackers will reach their goal quickly, organizations and individuals who are exposed to such attacks lose a great deal of credibility and these hacking attacks have many destructive effects on their system.
Phishing history:
In 1990, the American Online Service Provider (AOL) introduced the concept of phishing, the name phishing was chosen according to the previous generation of scams named phone phreaking, and instead of the letter f (in fishing), they put the letters ph (phishing).
What turns email into phishing?
The question that may arise in your mind is how an email becomes a phishing email ? To answer this question, we must say that these emails are much more attractive than regular ones and the message that such emails have, often in relation with a matter of concern (such as the possibility of compromising your information), a matter of happiness (such as you winning a lottery), etc., the purpose of pointing out these issues by the hackers is that when users are concerned about something, they cannot think correctly, and they will open the email without checking it and click on the malicious links mentioned in it.These emails often use some URLs which are similar to a reputable company’s URL with only very small differences, and try to do all of their site design like a reputable site and make small changes that the user cannot recognize, so the user thinks that this site is a credible one, for example, you may open your email and see that it contains a congratulatory message from the bank informing you that you have won a lot of money in the bank lottery, which will raise your adrenaline, and you will be happy, so you cannot think properly and may even give your information to them or click on a suggested link which is given in that email, because, at this point, you never think about whether this message is real or not, and you don’t think of the point that whether the email address is suspicious or not, all the points mentioned can make you ignore the email address and implement the commands in it.
The security of a system is so significant and users, especially large and small companies’ owners, pay a lot of attention to this issue, so all of them try to increase the security of their information in the best way possible and do not allow hackers to infiltrate their information, however, there are still many hackers who can access important information in various ways and make the most of their hacking attack, which may be through password hacking, social engineering, etc., in this article, we are going to deal with phishing attacks and try to tell you a lot about this type of cyber-attack, Phishing attacks have increased dramatically in recent months and have made users more and more concerned, so one of the best ways to avoid this type of attack from happening is to be fully aware of it.
What is phishing?
It is a type of cyber-attack in which hackers send a fake message which endangers all user data, through these attacks, hackers can easily access people's information as well as online accounts and cause malicious damage to the system, through this kind of attack, the hackers may gain a lot of money through the information they have obtained about the user's credit card, or make the most of other important information they have obtained in connection with a particular subject, the reason is that all users should be fully aware of phishing , so that they can take care of their accounts and ensure the security of their information.
How does phishing happen?
Day by day, hackers become more specialized in their field of work and use smarter methods to trick users in order to hack their accounts, which may shock the users and easily steal all the information in their system, in fact, Phishing occurs when these users respond to an email from a hacker and fall into the trap of hackers, those emails are often very attractive, which causes users to respond to them and may contain an urgent request, for example in the email you are asked to update your password quickly, or an email containing a request for few codes which is sent to you through one of the social networks, clicking on an infected link, etc., that all these requests are in order for hackers to infiltrate your account and gain access to your information.These messages are designed in such a way that the user thinks that it was sent from a reputable source, and if they are not immediately aware of their mistake, they may provide a lot of information to profiteers or hackers and give this opportunity to them to install one of their target malware on the users’ systems, in fact, these people first identify the users they intend to target before phishing , and they try to influence the users’ feelings and stimulate their sense of fear, curiosity, etc., so that the user acts quickly on everything requested in the email, so you do not have a chance to think whether your decision is correct or not.
What are phishing examples?
As mentioned earlier, hackers are rapidly advancing their business, and making their actions increasingly complex and difficult in order to make it harder for users to realize that their accounts are being hacked, in order to be less likely to be involved in such attacks in the future, the best thing to do is to be fully aware of the different forms of phishing attacks , so if a hacker tries to steal your information, you can make your account secure by having enough information in this field.
The number of hackers is increasing day by day, and many people who are talented in the field of computers, programming , etc., turn to this job due to its high income and excitement, one of the goals that hackers are very interested in achieving is to become famous among other hackers, in order to achieve this goal, they have to hack a system and an organization that none of the hackers have been able to do hack before, or they may be able to find security bugs existing in large companies’ systems and share them to the public.Many hackers have achieved the goals mentioned above, but the question that many people are trying to reach its answer, is thatwho is the best hacker in the world and how he/she has become so famous, which we are going to answer these questions in the following.In general, the word “hack” and “hacker” is considered as a scary word for users and users try their best not to give information to hackers, but if the hacker is so professional, it will be much harder to keep the information safe.
Who is the best hacker in the world?
Kevin Mitnick is the best hacker in the world, after hearing his name, you may think of his characteristics and what he has become famous for, or which group of hackers he belongs to which will discuss in this article.
Kevin Mitnick:
Kevin Mitnick was born on August 6, 1963, in Van Noise, California and grew up in Los Angeles, he has various names such as The Condor and The Darkside Hacker, it should be mentioned that he had his first project at the age of 12, and he has used the method of social engineering for doing this task, in fact, at this age he was able to trick a bus driver with the help of social engineering and Dumpster Diving, in order to bypass the punch card system, which was used in the Los Angeles bus service, later, social engineering became one of the ways that Kevin used to hack usernames, passwords, etc., here we will give a brief explanation about social engineering which is one of the main ways that he used.
- What is social engineering?
In this method, hackers cleverly make users trust them and easily provide them with their important information, this method is widely used among hackers and through it, they can access important and personal information that is used in order not to provide your information to hackers through this method, you must be very careful and do not trust any, social engineering contains 3 popular methods, which we will briefly describe in the following.
Today, hackers and their related topics have found a lot of fans among users, and they do a lot of searches related to this topic in search engines, the issue of security is also very attractive and attracts many users.
What is a hack?
Hacking is the ability of different people to access other people's information illegally, and they use this information in order to achieve their personal goals, ever since computers came into being, hacking appears as well, and people with the good experience that hacking has given them due to the great income they have been able to make by doing so, have finally turned it into their main job, as a result, the number of hackers increased day by day.
Who is a hacker?
A hacker is a person who has his own personality traits and uses his abilities in the field of computers to search for weaknesses and vulnerabilities in computers, and through all these points to the can achieve a lot of data, hackers have different types, each of which has a various purpose, which may be to help increase the security of different systems or to damage security systems, in this article, we are going to discuss which types of hackers are among the best ones and related topics.
Which hat hacker is the best?
The answer to this question is white hat hackers, and you may know the reasons why we choose this type of hacker, but we will explain more in this regard, white hat hackers are people who have a lot of intelligence in the field of computers, and these people actually use their intelligence in order to increase the security of computer systems of organizations, etc., and many organizations hire these people due to the fact that they can help them a lot because they have the ability to find the security holes in their systems before other malicious hackers and fix these security holes as soon as possible.In fact, white hat hackers use all the methods used by black hat hackers and take all the necessary steps to hack a system, so that they can realize the weaknesses and vulnerabilities of a system quickly, these hackers are being used to protect important information in large organizations or small sites, and you can hire them to greatly increase the security of your systems , they also spend a lot of time analyzing cyber threats and reporting all the results they get to site owners, so that they can implement the necessary solutions in order to control the situation and maintain security under the supervision of system owners.
Website design is a topic that has many fans among people and many people prefer to be active in this field, each of which may use different tools to do their tasks, one of these tools that is very common among different designers is WordPress , which is used by many different designers, and this popularity is reasonable, and there are lots of them some of which are going to be summarized in the following, and we will explain why you need to learn the way to install it completely.
What is WordPress?
In general, it is considered an open-source content system which is available to various users for free, and it can be used in order to launch a personal as well as commercial website, as we have mentioned above, this system is a kind of open-source system, it means that site owners can get help from it and gain access to its source code if they want to view and modify it.
What is the reason for its popularity?
- It is popular for many reasons, some of the important ones are going to be mentioned in the following section, one of the issues that is of a great importance for the owners of different sites is to be able to get a high ranking in Google search engine , which WordPress provides this opportunity to some extent, and search engines prefer websites that have used WordPress compared to the ones that have not used it to manage the content of their site and launch it because it is easier to crawl search engine robots to analyze the site within the CMS, so that using this system can help you be successful as soon as possible.- There are various plugins in this system that make it possible for you to use it in order to create large sites , and you can also design small sites with the help of it, which is also one of the several reasons for the importance of this system.- Another reason for the popularity of it, is that it is very easy to use it, and it is possible for anyone to learn how to work with it so easily.- WordPress has a high level of security , and due to the great popularity of it among Internet users and its widespread use by them, hackers are also interested in this system, so the lack of high security in it can be very dangerous as well as insecure, so that because of the possible risks, WordPress employees prefer to update regularly in order to avoid their system from being hacked by profiteers and prevent the possible risks from happening.- With the help of this system, you can easily design a site which is compatible to run on different devices, and users can use any device to gain a good experience from your site and application, which is considered as an important positive point due to the fact that there is no need for a specific type of device to use your site or application so that it would be much easier for users, as a result, they will definitely prefer to use your site, and as you know when you can make a user satisfied, they may share this good experience with their family and friends, so that the traffic to your website will increase as well as the ranking of it .- As we have mentioned before, the owners of this system provide updated versions regularly, and the positive point in this part is that you can do the update with just a few clicks, you can also take advantage of new version which is better and faster. - Working with this system doesn’t require a lot of expertise which is considered as an advantage for this system due to the fact that there are lots of people who have a little knowledge in this field but they are still interested in using this system so that they can easily take advantage of it because it is not complicated, and it is suitable for everyone.- It has definitely occurred to you that when you work with a system or a program, you encounter problems and no matter how much you search for answers to your questions on the Internet, you cannot find an answer for it, and eventually, you cannot work with that system anymore, but this is not the case with WordPress, due to the fact that if you encounter any problems, you can find the answers to your questions with just a simple internet search.
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