Before moving directly to ART (Android Runtime), we need to understand what the runtime environment is and also understand some basic things, that is, the functioning of JVM and Dalvik VM.
What is the runtime?
In a simpler term, it is a system used by the operating system that is responsible for converting the code you write in a high-level language such as Java to machine code and understands it by CPU / Processor
The runtime consists of software instructions that run when your program is running, even if they are not essentially part of the code for that particular piece of software.
CPU or a more general term, our computers only understand the machine language (binary codes), so in order for it to run on the CPU, the code must be converted to the machine code, which is performed by a translator
Next, the generation of the translator in a sequence is shown.
1. Assemblers: He directly translated assembly codes to machine codes, so it was very fast.
2. Compilers: Translate the code into assembly codes and then use assemblers to translate the code into binary. The use of this compilation was slow but the execution was fast. But the biggest problem with the compiler is that the resulting machine code depended on the platform. In other words, the code that runs on a machine may not run on a different machine.
3. Interpreters: Translate the code while executing it. As the translation occurs at runtime, the execution was slow.
How does the execution of the JAVA code work?
To maintain the independence of the code platform, JAVA developed JVM, that is, Java Virtual Machine. He developed JVM specific to each platform, which means that JVM depends on the platform. The Java compiler converts the .java files into .class files, which is called bytecode. This byte code is delivered to the JVM which converts it into machine code.
This is slower than C ++ compilation but faster than interpretation.
How does Android code execution work?
On Android, Java classes become a DEX bytecode. The DEX bytecode format is translated into native machine code through ART or Dalvik runtimes. Here the DEX bytecode is independent of the device architecture.
Dalvik is an engine based on JIT (Just in time) compilation. There were inconveniences to use Dalvik, therefore, since Android 4.4 (KitKat) ART was introduced as runtime and since Android 5.0 (Lollipop) it has completely replaced Dalvik. Android 7.0 adds a Just-In-Time (JIT) compiler with code profiles for Android Runtime (ART) that constantly improves the performance of Android applications as they run.
Key point: Dalvik used the JIT (Just in time) compilation while ART uses the AOT (Ahead of time) compilation.
Below is the code snippet that explains the difference between Dalvik Virtual Machine and Java Virtual Machine.
Just in time (JIT)
With the Dalvik JIT compiler, every time the application is run, it dynamically translates a part of the Dalvik bytecode into machine code. As execution progresses, more bytecode is compiled and cached. Since JIT compiles only part of the code, it has a smaller memory footprint and uses less physical space on the device
Ahead of Time (AOT)
ART is equipped with an Ahead-of-Time compiler. During the app installation phase, DEX bytecode is statically converted to machine code and stored in the device storage. This is a one-time event that occurs when an app is installed on a device. Because there is no need for JIT compilation, code execution is much faster.
Since ART executes the application machine code directly (native execution), it does not hit the CPU as much as compiling a just-in-time code with Dalvik. Battery consumption is reduced due to low CPU usage.
ART also uses the same DEX bytecode as input for Dalvik. An application compiled using ART requires additional time for compilation when an application is installed and occupies a slightly larger amount of space to store the compiled code.
Why does Android use the virtual machine?
Android uses a virtual machine as its runtime environment to run the APK files that constitute an Android application. The advantages are presented below:
The application code is isolated from the central operating system. So even if some code contains some malicious code, it will not directly affect the system files. It makes the Android operating system more stable and reliable.
It provides cross-compatibility or platform independence. It means that even if an application is compiled on a platform such as a PC, it can still be run on the mobile platform using the virtual machine.
Applications run faster since DEX bytecode translation is done during installation.
Reduces application startup time since native code is executed directly
Improves battery performance because it saves energy used to interpret byte codes line by line.
Improved garbage collector.
Enhanced developer tool.
Drawbacks of ART
The installation of the application takes longer due to the conversion of DEX bytecode into machine code during installation.
As the native machine code generated in the installation is stored in the internal storage, more internal storage is required.
Your WordPress site can be faster and more secure, and you can make it happen!
This Article explains why Update your PHP today, why PHP important to you and then how to fix it.
Why PHP is important to you
PHP is the coding language WordPress is built on and its version is set at the server level of your hosting company. Even if you know the importance of keeping WordPress and your themes and plugins up to date, it is equally important to keep PHP up to date.
There are two main benefits of keeping PHP up to date:
Your website will be faster since the latest version of PHP is more efficient. The update to the latest compatible version (currently 7.3) can give a great boost to performance; up to 3 or 4 times faster for previous versions.
Your website will be more secure. PHP, like WordPress, is maintained by its community. Since PHP is so popular, it is a target for hackers – but the latest version will have the latest security features. Older versions of PHP do not have this, so updating your WordPress site is important.
And then there are many secondary benefits:
A faster WordPress site will be rewarded by search engines, so you will rank higher in the search!
A faster site will retain visitors better (they will leave if it takes too long to load), making your site more efficient.
A more secure site is better protected against hackers, and the cost and reputation damage associated with a hacked site
These benefits are good for you and good for website visitors. These are the reasons why you should update PHP today. The next part shows you how to do this.
Before updating your PHP version
This section starts with some warnings, but don’t be afraid! As with most technical things, we just need to cover some background before we can get to the part where you update your PHP version.
Updating your PHP version should not be a problem, but we cannot guarantee that it is not. WordPress itself works with PHP versions as far back as 5.6.20 (we currently recommend version 7.3, so it’s good backwards compatibility!), But we don’t know if your themes or plugins will work. They should be popular or reputable, but we can’t guarantee it.
There are a few steps you should take to reduce the risk before continuing:
Creating a Backup of Your Website: A backup lets you restore your site to what it is right now if something goes wrong. There are plenty of free backup plugins available, so if you don’t already have a backup solution – use one of these. To restore this backup, you also need your web host to move your PHP version back to your current version (we will describe how to do it later).
Update WordPress, Themes and Plugins: from your WordPress Dashboard, go to Updates and then update all. You should do this regularly anyway. When you’re done, make sure your website is working as expected.
Check PHP Compatibility: Install the PHP Compatibility Checker plugin to check your themes and plugins for any issues. This plugin is not perfect and can miss objects or flag false positives, but it works in most cases.
Fix any PHP compatibility issues: If the PHP Compatibility Checker plugin picks up any issues, contact the theme or plugin developer and ask them to investigate. If they can’t or won’t come back to you, look for themes or plugins on WordPress.org with similar features and use one of these instead
Run through these steps and you’re ready to update the PHP on your WordPress site – and enjoy all the benefits that come with it!
If you encounter problems when doing this or need help, you should contact a professional web developer, your web host, or your author of theme and plugins. All of these are happy to help here. We can now move on to the last part: actually update your site’s PHP version.
How to update your website PHP version for a faster and more secure site
You are now ready to update your site’s PHP version! You have done due diligence, received backups and are in the best possible shape to do the update.
Because the PHP version is set at the server level of your hosting company, updating either means interacting with the host’s settings or asking them to do so. So exactly how you do the update depends on your hosting company. We have asked hosting companies to submit instructions on how to update your PHP version to their host, and you will find a list of hosts that have instructions available here.
If you encounter any problems at this stage, change either the PHP version yourself, contact your web hosting company or a professional web developer. In the unlikely event, something goes wrong and you need to restore your backup, contact your host and ask them to restore an earlier version of PHP you had run. You can then restore your backup.
Now you should have all the information you need to update! Good work! With an up-to-date version of PHP, you will enjoy a faster, safer site and happier visitors
Faster, more secure WordPress sites for everyone
Ensuring that you have the latest version of PHP ensures that your site is as fast and secure as possible.
Now you have all the information you need to update to the latest version of PHP, and you know how to update in the future as well. Want to know more about PHP update then PHP training in Chandigarh is the best option for you.
Attracting online shoppers can be complicated. While your website may seem professional and include social evidence and trustworthiness, you might overlook less obvious design elements that can affect conversions. But do not worry; You don’t have to be a web designer to understand and implement these 5 simple Web-Design Tips to Boost Conversions.
When choosing colors for your website, you should not simply choose your favorite. Instead, you should consider the emotions that each color will convey and if that emotion matches your brand. It is commonly believed that certain colors affect the way we feel about a business, even if we decide to make a purchase.
It is believed that the color blue, for example, evokes feelings of trust, strength, and reliability, which is why companies like Dell, Ford, and American Express use it. On the other hand, companies like Lego, Nintendo, and YouTube chose red because it tends to evoke excitement and youthfulness.
Therefore, consider the colors of your website to convey to your audience. Do you sell healthy lifestyle products? Then think about choosing green to evoke peace and growth. And also keep in mind that using high contrast colors helps highlight the most important elements, such as call-to-action buttons.
2. Consider the typography.
Just as colors cause-specific emotions in people, so do fonts, so you should choose the typography for your website that represents your brand accurately. For example, if your company makes handmade furniture, you might consider choosing a font that tells your audience that reliability and comfort are important to you.
In addition, creating enough space between lines of text will make your content easier for users to read. The magic line height (the space above and below the text lines) is 150 percent of the font size you are using.
3. Use the negative space.
Negative space refers to the space between all the different elements of your website, such as the one between the header and the content. A lot of negative space on your website is really a good thing since it allows you to concentrate on the most important elements, such as a striking main image and a call to action, and general readability.
4. Choose an F pattern.
Pattern F refers to the way our eyes move when we read online content. Usually, people scan from left to right at the top of the screen, then their moving eyes scan down the page, scan to the right again, but less than at the top of the screen. Then, the area of the page that gets the least visibility is the lower right corner. This eye movement finally resembles a form of “F” or “E”. When implementing your F-Pattern, place your most important elements and your calls to action in the areas that will be most visible. For example, if you place your call to action on the top left of your website page, you will stand out among your visitors and get more clicks.
When designing your company’s website, you cannot think about what your company wants or needs. On the contrary, you should think about what is best for your visitors. Use these simple design tips to improve the way users consume the information they need most, and an increase in conversions is sure to follow.
5. Unique Selling Point
The unique selling point of your website differentiates you from the huge pool of websites that exist. To get the attention of the user, your web design must have a unique design that separates it from the crowd. However, in addition to getting the user’s attention, make sure that your USP also stays in the user’s mind.
6. Respect Users’ Patience
Or rather, impatience. It turns out that people are incredibly impatient, especially when it comes to surfing the web, a one-second delay in page load time results in a 7% reduction in conversions!
In terms of web design principles, this means that you must verify the speed of your page and solve any problem, run your site through one or more of these free tools:
Google PageSpeed Insights
Now you know how your web design can boost the conversion of your website. Simply implement the above principles and Simple Web-Design Tips to Boost Conversions. You will see more visitors and surprisingly more conversion rate.
If you are running a small business and feel it is time to expand and reach a clientele beyond the small town you had attended, you should start by creating a website. You can set it up yourself or go to a web design services provider company in Chandigarh. It is important to know that the website is not only a piece of decoration, but that it is partially responsible for managing your business and should make it work.
But how do you make sure it works? The website has two main functions: the first is to attract and involve consumers and the second is to encourage them to become customers. Customers could enter your store or better yet, they could simply offer you business on your website. To perform its functions effectively, you must ensure that your website is equipped with some basic features. Must be able to make the visitor spend time exploring the website; If you do not, it is time to rework your website to make it effective.
It must look attractive
The first impression of a website is permanent. If it doesn’t impress a visitor for the first time, you may never get it to be your customer. Work on the website to make it look welcoming and attractive. It doesn’t have to have nice images to make it attractive; in fact it can really distract you. It is important that it appeals to your customers. Therefore it must contain elements that the customer can relate to.
Avoid adding too many elements, but enter enough to communicate your message. Clutter can cause your message to be lost, but for some industries that might be a good idea. So you do not have to generalize, but adapt it to your needs. This transformation does not have to cost you much. If you wish, you can use the various free themes available online.
Provide easy access to contact information
The website must prominently display your full contact information. You could have it on the home page or you can have a separate page with detailed contact information, complete with the physical address, email address, telephone numbers and links to various social media platforms where you are present.
If you do not like to take random calls, you can add a contact form where they can fill in all the details so that you can contact them. Another option is to have a live chat session on your website. The customers can immediately remove the doubts by chatting with the employee or chatbot
Show off your happy customers
Nothing is more convincing than a satisfied customer and you have to take full advantage of this. Encourage your customers to leave reviews and ratings on the website. This works well when new visitors see them. Impressed by the positive feedback from other customers, they also feel encouraged to add their name to your customer list.
You can also present your customers on a separate page by prominently displaying the logos of your valued customers, awards received and media attention. You can talk about some of your successful projects that show off your best work
Share information via a blog
A blog can be interesting to read if a variety of information is available to your customers. It keeps the visitors involved. For this it is important that your message is creative, informative and entertaining – all at the same time. Share information about events and developments in your field, along with interesting tips on how they can make full use of your services. These also ensure that you are established as an expert in your field.
Encourage action from your consumers
Of course you cannot simply tell your customers that they should do business with you, so you must work strategically to make them take a small step forward. You can ask them to like your presence on social media. They can subscribe to your newsletter or maybe contact you if they are not yet ready to become a customer
If they are ready for business, you are and you must offer them the best service. You can then encourage them to leave a review for the benefit of other consumers like them.
With the website in place with just the right elements, you should expect some growth in your business, but you will also need to use some SEO activities that can be planned by your web designing training in Chandigarh. An old website can cause the consumer to lose interest and all your efforts to be lost. That is why you must continue to update the content on your website. You must not forget that maintaining the website is just as important as designing it.
How attractive would it be if an application opens on the device without downloading and installing it completely? An active and committed user base is one of the key factors when measuring the success of an application. The Android Instant application is one of the newest ways to reach as many users as possible and involve them with the functions of your application without installing the entire application. The Android instant app feature allows users to open their application module as the standalone application via URL. URL-based access to your application module makes your application searchable and accessible everywhere, not limited to emails, press releases, Google search results, blog posts, and social media links.If you want to learn more about Android Instant Apps then we provide Android Training in Chandigarh for those who want to make their career in this field.
How does an Android instant app work?
An instant app has an associated URL. Every time a user touches that URL, Google Play finds an instant application associated with it, Google Play then sends the APK of the function corresponding to the requested function to a user’s device and the Android system starts the instant application. If Google Play cannot find an instant application that matches the URL, the Android system broadcast an attempt to handle that URL. To make sure, Google Play Store finds a matching instant application, each instant app must have a unique URL and an associated entry point.
The instant application has a specific project structure. You can create a new app with Android Studio 3.0 that will have an instant app module or you can add a new instant application module to an existing project. The project structure includes the base features and other APK applications. If you want to extend only one features as an instant application, then the base APK is sufficient. You will have to add other features modules to generate APK features if you want to support several features in the instant application. The basic APK feature ideally contains shared resources for multiple features. Each feature APK must have an entry point activity that will be called when the URL is hit to access the instant application. Each time a user requests one of the features of the instant application, the base APK and the features APK are obtained from the Play Store mapped with the corresponding URLs. If a user wishes to access another features, only that APK of the features is downloaded, since the base APK is already downloaded and is still available in the cache. The instant resources of the application remain in cache for a few hours, but there is no application installed
Why Upgrade To An Android Instant App?
Creating or adding the functionality of Android instant app to an existing Android application requires some effort. However, it may be worth taking those extra effort considering some of the great benefits that instant apps can provide to a company that invests in a mobile application.
It helps you reach new users
When you are Doing app marketing or preparing to promote applications for early users, at some point you would like users to visit your app in the Google Play Store from your website, social networks, promotional links or even from videos. But there is a possibility that most users still do not press the install button in the Google Play Store. Instant apps can be beneficial in cases where new users can see a couple of the features of the application by pressing the links of marketing material without installing the app. This can help you reach new users and better understand user behavior.
Provide native user experience to users who are not installing the application
Because the instant app can share resources with the original native application, it can help you offer the same flagship Android experience to all your users: one that installs a native app and another that uses instant app for functions.
It helps users to access the features of their application even with limited Internet connection
The Internet connection is improving day by day, but sometimes it still faces problems with poor connectivity. Then, users struggle to access their application or even face a problem downloading and installing it. Users can simply access the desired features without installing the application.
Beneficial for location and time sensitive app
Location-based applications are not new. However, if users are not going to frequently use location-based or time-sensitive applications, it makes no sense to force users to install their application. The instant application can increase the attractiveness of the location and time sensitive applications, as users do not need to install it and can be easily accessed by pressing the URL.
Ensures that the shared content is used in the best possible way for your application
A user who shares the content of your application is one of the most useful ways to reach new audiences, so you may have to make the best first impression. Previously, it was difficult to provide a constant experience for users who do not have their app installed on their devices, but instant app allow you to promise a native and trouble-free experience for everyone
Design Guidelines For Instant Apps
Android instant apps provide a new and unique way for users to use applications. These are native Android applications, but they can run without an installation on the device. Each instant app has a corresponding version for users to install.
Due to the distinctive way in which users interact with instant apps, developers must follow some of the specific design guidelines. These are some of the best practices to create a reliable user experience with an instant app.
Provide a constant landing screen for the application
Users can start their instant app and access it from several different sources, such as the Android launcher, from the search or the icon of an application. You must provide a universal landing experience for all these instances.
Avoid creating any welcome screen added
The launch experience of an instant application includes the app title,brand and the app launcher icon. Avoid creating an additional welcome screen for instant application experience.
Do not change your user interface
The transition from an instant version of the application to its installed version should be as smooth as possible. Do not change the user interface or design in your instant application
Check before asking users to log in
Provide users with more functionality as possible without having to register or log in to a service. Wait until the user tries to use a features that needs to be authenticated before reminding him to log in. These login reminders are considered less intrusive to users if they instantly see the advantages of logging in.
Allow users to complete a task before displaying the installation message
Do not ask users to install the application every time. Let them complete a task in the instant app without being disturbed by the installation message such as “Get the application”, “Update” or “Install the complete application”. Also, avoid using any advertising technique or banners to present the installation message.
Remove non-functional sections of the application
Whenever you change your application to the instant application, there may be some non-functional sections of the UI of the instant app that only have an installation button. Remove any of those parts of the application
Transfer the status of the user’s stored application after installation
After the user installs the application, be sure to transfer its stored application status to the instant app using local storage or cookies. Users must be able to start over where they left it in the application.
Provide an option to share instant app URLs
Since an address bar is not provided for users in instant applications to copy the URL, you must include a “share” action within the application that allows users to share the URL of your instant app.
Check your performance metrics
The number of facilities may not evaluate what your business really needs. Your users should be able to complete the main tasks without installing your application. In addition, you should be able to eliminate friction between users and their KPIs
What Is Supported By An Instant App?
Instant applications work on most Android 5.0 devices (API level 21).
The single project and the source tree are good for supporting the instant application. You must follow the project structure for instant support.
Use runtime permissions. Since the application is not installed on the device, it is not possible to take permissions before starting the instant app.
Smart locks are compatible with the instant application. If an instant application needs to log in, you must implement smart password locks.
Instant app can be discovered in Google search.
NDK supports the instant application for devices with 5.0+
It supports deep links.
Supports Google Analytics and Firebase.
Dynamic Firebase links work with instant apps.
Ads can be added to instant apps
Restrictions And Limitations Of Instant App
An instant app does not support background services.
You cannot send notifications.
You cannot access the unique identifiers of the device.
You cannot simply create the instant application. You must also have an installable version.
Registered manifest broadcasts do not work with instant apps.
External access content providers are not compatible with the instant app.
The instant app does not access external storage.
You cannot list installed applications unless installed apps have made them visible for instant applications
Where does the instant app fit in the real world scenario?
Consider that an application shares social networks and when a user touches the link, request to install the application to view the content. Or if a user needs to install a complete parking application and the user does not visit that city very often. Annoying, right? Most applications are designed in such a way that they force users to install the entire application just to complete one or two tasks.To overcome this poor user experience, Android has introduced instant apps. You can modularize your complete applications into smaller modules that can allow the user to complete an individual task without installing the complete app.
Should You Start Building An Android Instant App?
Therefore, it is ultimately a situation of mutual benefit for companies and users, since the instant app helps you get more users for your business and users also get the advantages of no download/app installation function to enjoy desired functions.
Extending your app to instant apps seems promising if you create appropriate use cases for this. It is possible to build a successful Android instant application by approaching an experienced Android application development company.
By taking advantage of the features offered by Android instant applications, you can grow intelligently and attract the audience of mobile applications for your business and stay ahead of the competition.
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