Quasar vs Android XML: Which UI Technology is More Efficient?
Introduction
The mobile user interface (UI) is one of the most crucial factors determining user experience. A well-designed UI makes interaction with the app easy, while a poorly designed one can cause users to struggle, fail to find the desired feature, abandon the app, or even uninstall it and leave negative reviews. This article compares Quasar, a popular web and mobile UI framework, with Android’s XML-based UI writing.
As someone who has been an Android developer for seven years and dealt with many different codebases, I was surprised to find many similarities when I encountered Quasar. My goal is to examine the similarities, strengths, and weaknesses of both technologies and show in which scenarios each is more suitable.
Development Environments and Tools:
-
Quasar: Quasar CLI allows for quick project creation and provides a robust development experience with Vue DevTools. It requires Node.js and NPM. You can use Visual Studio Code as the IDE. You can develop, test, and debug through Visual Studio Code and the browser. If you want to use Android-specific features like Android Profiler, you can also open the project through Android Studio.
-
Android XML: Android Studio is the official IDE for Android development, offering tools like XML editor, emulator, and Profiler. As a seven-year Android developer, I can’t emphasize enough the importance of Android Studio: It requires JDK. You can test and debug with both emulator and real devices.
Performance and Optimization
Which Technology is Faster and More Efficient?
-
Quasar: Thanks to Vue.js’s reactive nature, it offers a fast and efficient development experience, but since it’s browser-based (webview for mobile), memory usage and performance heavily depend on the browser used and the device’s performance. It works effectively for lightweight applications and can be developed by a single person for iOS as well. However, performance may drop in large and complex applications.
-
Android XML: Android’s native memory management provides much more efficient memory and battery usage. Large projects are better done natively. This topic is still not open to debate and probably never will be. Performance and memory usage tests can be examined megabyte by megabyte with Android Studio’s Profiler tool.
Photo by Onur Binay on Unsplash
Learning Curve and Developer Experience
Which technology is easier to learn and use
-
Quasar: It is quite easy to learn for those who have knowledge of HTML, CSS, Vue.js, and JavaScript. It can be quickly learned thanks to Quasar’s comprehensive documentation and a large community.
-
Android XML: Kotlin knowledge is required for Android development. Writing XML-based UI can be a bit complex, especially for beginners, but tools like Android Studio’s drag-and-drop features and documentation make this process easier.
Documentation and community support
Both have large and active communities, and the documentation for both is quite detailed and instructive. I find Android’s documentation more detailed. In terms of community, I also see the Android side as stronger. Comments are open for those who disagree. :)
Flexibility and Compatibility
Compatibility with Different Devices and Platforms:
-
Quasar: Since it is web-based, it can run on different browsers and platforms. Additionally, with Quasar, you can create mobile applications (as explained in this article and this article with Capacitor) and desktop applications (with Electron).
-
Android XML: It is only suitable for Android devices. The responsive design techniques used to adapt to different screen sizes and resolutions are superior to those of Quasar. There’s a ConstraintLayout that’s simply amazing.
Which Technology is More Suitable for Which Scenarios:
-
Quasar: It is suitable for web-based applications, cross-platform applications (you love saying cross-platform. I say cross. 😊), and rapid prototyping. If you want to develop an application for both web, iOS, and Android at once, you can choose Quasar and Vue.js.
-
Android XML: It is more suitable for projects that require high performance, large scope, and access to hardware features.
Steps to Create a UI Component in Both Technologies
If I’ve written enough literature, let’s move on to the code.
- Quasar: Since it is a Vue.js-based framework, components are created as Vue components:
<template>
<q-btn label="Click me" @click="handleClick"></q-btn>
</template>
<script>
export default {
methods: {
handleClick() {
alert('Button clicked!');
}
}
}
</script>
Pay attention to the specific Quasar line:
<q-btn label="Click me" @click="handleClick"></q-btn>
Any Android developer finds this structure familiar? Let’s move on to the example.
- Android XML: In Android, a button is created using XML before Jetpack Compose. This XML file is usually associated with an Activity or Fragment:
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Click me"
android:onClick="handleClick"/>
Let’s increase the code examples:
<div>
<!-- Button with icon and size -->
<q-btn
label="Click me"
@click="handleClick"
icon="alarm"
color="primary"
:size="buttonSize">
</q-btn>
<!-- Input Field with placeholder -->
<q-input
v-model="inputValue"
label="Enter text"
filled
stack-label
:hint="inputHint">
</q-input>
<!-- Checkbox -->
<q-checkbox
v-model="checked"
label="I agree">
</q-checkbox>
<!-- Icon with size -->
<q-icon
name="home"
:size="iconSize"
color="secondary">
</q-icon>
</div>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:padding="16dp"
tools:context=".MainActivity">
<!-- Button with icon and size -->
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Click me"
android:drawableLeft="@drawable/ic_alarm"
android:backgroundTint="@color/colorPrimary"
android:textSize="18sp"
android:onClick="handleClick"/>
<!-- Input Field with placeholder -->
<EditText
android:id="@+id/inputField"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Enter text"
android:textColorHint="@color/colorHint"
android:background="@drawable/input_background"/>
<!-- Checkbox -->
<CheckBox
android:id="@+id/checkbox"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="I agree"/>
<!-- Icon with size -->
<ImageView
android:id="@+id/icon"
android:layout_width="40dp"
android:layout_height="40dp"
android:src="@drawable/ic_home"
android:tint="@color/colorSecondary"/>
</LinearLayout>
icon=”alarm”? color=”primary”?
Dear Android developer, we’ve reached the most surprising point:
Quasar has Google Material Design support. You simply go to Google’s address, select an icon and color, copy and paste, and see it in the browser instantly. All color and icon names you are familiar with in Android are valid here.
Similar Points
Similarity in Development Paradigms
A developer who has worked in a component-based structure in Android for years can easily adapt to Quasar’s component-based approach. For instance, managing components in an Activity or Fragment in Android is quite similar to managing components within a Vue component in Quasar.
Similarity in UI Components and Features
The use of components like q-btn
, q-input
, and q-checkbox
in Quasar is similar to using Button
, EditText
, and CheckBox
components in Android. The way of specifying various attributes (e.g., color, size, icon) of components is nearly identical on both platforms.
Similarity
in Styling:
Styling components using classes in Quasar is comparable to using styles and themes in Android XML. For example, setting the color and size of a button in Quasar is similar to defining the color and size attributes in Android XML.
Similarity in Event Handling
Event handling mechanisms in Quasar and Android XML are quite alike. In Quasar, you use the @click
directive to handle button clicks, whereas in Android XML, you use the android:onClick
attribute. Both methods lead to the execution of a function defined in the corresponding script or activity.
Similarity in Data Binding
Quasar’s two-way data binding with the v-model
directive is similar to Android’s data binding feature. Both allow you to bind data directly to the UI components, making it easy to reflect data changes in the UI.
Similarity in Component Hierarchy
The hierarchical structure of components in Quasar resembles the view hierarchy in Android. Just like how Android UI elements are nested within layouts, Quasar components can be nested within other components, allowing for a modular and organized code structure.
Similarity in Asynchronous Operations
Handling asynchronous operations in Quasar using JavaScript promises or async/await is similar to using Kotlin’s coroutines in Android. Both methods provide efficient ways to manage background tasks without blocking the main thread.
Conclusion
Why won’t an Android developer find it too difficult to switch to Quasar?
Due to the syntax structure, component naming, attribute usage, and Material Design implementation in Quasar, Android developers will find it quite familiar. They can often rely on their existing experience to quickly resolve issues they encounter in Quasar.
Dependency on a single technology leads to nothing but losing out on the beautiful features of other technologies.