Nowadays, hybrid frameworks are used in the development of the majority of apps. Performance is one of the most crucial aspects to take into account when creating hybrid apps.
Performance is dependent not only on the framework you use to develop your application but also on the coding techniques you want to use and how you plan to use that framework.
In this blog, we'll go over some basic tips that will help you succeed in your efforts to optimize performance of Angular framework-developed mobile applications.
Optimizing Performance for Angular-based Mobile Application
Lazy Loading
When using the lazy loading loading technique, the necessary modules are loaded only when needed. At the moment, the majority of development frameworks support this technique, which loads only the necessary module code during application loading instead of the entire code base.
One way to improve performance is to use lazy loading to shorten the time it takes for the application to load.
Onpush Change Detection Strategy
In Angular development, one of the most crucial elements is the Change Detection Strategy. Every change in a component's property will be examined by Angular's default change detection strategy.
It will check to see if all properties have changed if one or more are modified.
Here, you can use the Onpush strategy to enhance the application's performance. This approach will only look for modifications to the component's input properties.
Therefore, before putting this strategy into practice, it is advised that you separate the presentational (dumb) components from the container components. Use the Onpush change detection strategy if you choose the presentational components so that it only looks at the input properties when updating the component.
Avoid Using The Time Interval Functions
Performance problems and thread blocking will result from the time interval functions. Therefore, it is advised that we refrain from utilizing these features.
AOT Build
The HTML and TypeScript code are compiled into Javascript at the time of build by the AOT compiler, also referred to as the Ahead of Time compiler.
As a result, the application will load quicker than it would with a typical build.
Destroying Subscriptions
Remember to unsubscribe in the view destroy method if you have subscribed for any observables in the components.
Failure to do so may result in issues with memory leaks in every unsubscribed observable. This may significantly impair the application's performance.
Using Track
*ngFor will use the object's reference to track uniqueness. JavaScript framework AngularJS will entirely remove and recreate the DOM node if the object's reference is changed.
Our recommendation is to use trackby in *ngFor to prevent this.
Compressing Assets
Compressing resources, such as images, without sacrificing quality is a good idea. By doing this, the app's build size will be decreased, and its loading speed will be increased.
Also Read: Angular.js Scaling Strategies: 40% Efficiency Boost for Large Projects
Scripts Loading
Scripts typically prevent template parsing until the script loading process is finished. To minimize loading times and enhance application performance, we can use the defer attribute to load scripts after template parsing is finished.
Improve The Server Response Time
The server's response body size can be decreased by employing the gzip compression technique, which lowers network latency.
It's also important to remember to avoid making repeated HTTP requests and to keep the caches on the client and server sides, respectively.
Avoid Delays In The Click Event
Make sure that elements other than clickable elements, like buttons and anchor tags, have the tappable attribute added to them if you plan to develop a hybrid framework using the ionic framework.
There would be a pause between the click event and the method's execution if you did not add this attribute to the element.
Clearing Unused Variables And Arrays
Removing unnecessary variables and arrays from your code and minimizing the use of global variables are two more ways to improve app performance.
Until the window is closed or reloaded, the global variables remain in memory. This would result in a memory leak problem, which would lower the application's performance. Additionally, it is advised to stay away from console.log statements when using production mode.
Avoid Using Local Storage
It is advised against using local storage for storing complicated data. With the aid of data services, you can manage data or utilize the SQLite database.
Using NGRX Store
You can make the app perform better by using Redux libraries like ngrx store as the state management library. As a result, there will be fewer events during data transfer.
Avoid Calling Methods In Template Binding
Occasionally, the value of a property that is displayed in the user interface and originates from the server needs to be changed.
Here, you should avoid using a method call in template binding to change the value, as this will force Angular to rerun the method on each change detection.
Use pure pipes, which would only trigger change detection when the input value is exposed to pure change, to prevent this.
Enable Production Mode
Angular will operate in debug mode by default. As a result, change detection might activate twice in a row to prevent unforeseen changes to the properties that could impair the application's performance.
By turning on the production mode in the production environment, this can be prevented.
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Using AngularJS to Create Adaptive and Responsive Mobile Apps
Building mobile applications that offer a seamless user experience across various devices and screen sizes is essential in today's mobile-driven world.
With the help of the robust JavaScript framework AngularJS, developers can design mobile apps that are both responsive and adaptable.
We will go over the main ideas and methods for creating these kinds of apps with AngularJS mobile app development in this blog post.
Understanding Responsive Design
The process of developing web apps that adjust to the user's device and screen size is known as responsive design.
You can use AngularJS's robust directives and components to create responsive layouts. Creating a fluid grid system that can adapt the app's layout automatically to the available screen space is the first step.
CSS classes from AngularJS, such as ng-class and ng-style, allow styles to be dynamically adjusted according to screen size and device orientation.
Media Queries And Breakpoints
Responsive web design relies heavily on media queries. They allow you to set particular styles for various screen sizes and orientations.
Since AngularJS applies different classes or styles dynamically based on breakpoints, this method works very well for media queries. When changing viewport sizes occur, you can detect those changes quickly with its $window service and apply appropriate styles or trigger layout modifications accordingly using window objects like $window object in AngularJS.
Mobile-Friendly Navigation
AngularJS allows you to craft an intuitive navigation experience by offering features like routing and directives like ng-view and ng-route, in combination with its ngTouch module allowing touch interactions and gesture recognition that enhance usability of mobile applications.
Optimizing Performance
Mobile applications must be small and efficient to offer users an uninterrupted user experience. AngularJS offers various strategies that improve performance.
Rendering can be effectively controlled so only necessary parts of the UI update using built-in directives such as ng-repeat and ng-if. In order to reduce initial loading times even further you could take advantage of tools like asynchronous module loading or lazy loading.
Testing And Debugging
AngularJS' comprehensive testing framework makes writing unit tests for your mobile application much simpler; automating them and making sure the app runs on different devices and screen sizes can all be accomplished using tools like Karma or Jasmine.
Furthermore, its debugging features and developer tools assist developers in quickly discovering and solving any potential issues, ensuring a more streamlined development process.
Building Native-Like Experiences
AngularJS can be utilized with frameworks like Ionic or React Native to create hybrid or native-looking mobile applications with enhanced user experiences, using these frameworks' access to native device features and performance optimization optimization, with AngularJS acting as its logic layer.
Conclusion
Utilizing AngularJS framework to develop responsive and adaptive mobile applications enables you to craft user-friendly experiences that adapt effortlessly across devices of different screen sizes without the hassle of code updates or compatibility problems.
Utilizing its extensive set of services, modules, directives and directives (responsive navigation features such as services modules directives, etc.), you can optimize performance and ensure fluid layouts while guaranteeing cross-platform compatibility - giving your app users an incredible mobile experience they'll love using AngularJS as the framework behind development.
Paul is a highly skilled Full Stack Developer with a solid educational background that includes a Bachelor's degree in Computer Science and a Master's degree in Software Engineering, as well as a decade of hands-on experience. Certifications such as AWS Certified Solutions Architect, and Agile Scrum Master bolster his knowledge. Paul's excellent contributions to the software development industry have garnered him a slew of prizes and accolades, cementing his status as a top-tier professional. Aside from coding, he finds relief in her interests, which include hiking through beautiful landscapes, finding creative outlets through painting, and giving back to the community by participating in local tech education programmer.
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