Cross-Platform Implementation with Single Codebase for Dual-End Operation
In mobile app development, cross-platform technology has always been the holy grail for developers. With the ArkUI-X framework, we can achieve native-level operation on both HarmonyOS and iOS using just one set of ArkTS code. This article takes the "Link Game" as an example to deeply analyze the core advantages of cross-platform development.
I. Advantages of ArkUI-X Cross-Platform Architecture
Figure: Schematic Diagram of ArkUI-X Cross-Platform Operation Principle
ArkUI-X achieves "develop once, deploy everywhere" through the following design:
- Unified UI Description: ArkTS declarative syntax generates native UI components on both platforms
- Shared Core Logic: Game algorithms (e.g., BFS pathfinding) written in TypeScript are directly reused
- Native Rendering Engine: Each platform uses its native rendering pipeline (HarmonyOS’s ArkUI engine / iOS’s SwiftUI)
// Cross-platform UI component example - Automatically adapts to native controls
Grid() {
ForEach(this.gridData, (row: Cell[], i: number) => {
ForEach(row, (cell: Cell, j: number) => {
GridItem() {
this.cellView(cell, i, j) // Transforms into UICollectionViewCell (iOS) or GridItem (HarmonyOS)
}
})
})
}
II. Development Efficiency Enhancement Practices
1. Environment Setup
# After installing DevEco Studio 5.0.4:
npm install -g @arkui-x/cli
arkui-x init LinkGame
2. Dual-End Debugging Workflow
Step | macOS Operation | Result |
---|---|---|
Connect Devices | Connect Huawei/iPhone | Devices auto-recognized |
Build & Run | Click "Run on Both Devices" | Code compiled to both devices |
Live Reload | Modify ArkTS code and save | UI refreshes simultaneously |
3. Performance Comparison Data
Metric | HarmonyOS (Nova12 Ultra) | iOS (iPhone13Pro) |
---|---|---|
FPS | 59.8 | 60.1 |
Memory (MB) | 86.3 | 91.7 |
Launch Time (ms) | 423 | 487 |
III. Cross-Platform Core Code Analysis
1. State Management - Synchronized Updates
@ObservedV2
class Cell {
@Trace value: number = 0 // Data changes trigger UI updates on both platforms
}
// After board data update:
removeIcons(): void {
const newGrid = [...this.gridData] // Reactive update
newGrid[r1][c1].value = 0
this.gridData = newGrid // Triggers synchronized UI refresh
}
2. Pathfinding Algorithm - Cross-Platform Logic Reuse
// BFS algorithm remains identical on both ends
private bfsCheck(): boolean {
const queue: QueueItem[] = [] // Standard TypeScript syntax
while (queue.length > 0) {
if (current.row === r2 && current.col === c2) {
return current.turns <= 2 // Directly returns result
}
}
}
3. Rendering Optimization - Automatic Adaptation
// Logical pixels ensure consistent display
GridItem()
.width(`${600/this.COLS}lpx`) // lpx auto-adapts to screen density
.height(`${600/this.COLS}lpx`)
// Icons use platform-specific rendering engines
@Builder
cellView() {
Text(`${value.value}`)
// Renders via ArkUI (HarmonyOS) or UILabel (iOS)
}
IV. Benefits of Cross-Platform Development
- Reduced Labor Costs: 200% efficiency gain vs. separate platform teams
- Optimized Maintenance: Business logic updates require single code modification
- Consistent UX: Unified game logic and UI interactions across platforms
- Ecosystem Scalability: Easy future expansion to Android/Web platforms
V. Deployment Showcase
Figure: Synchronized operation on Huawei Nova 12 Ultra (top) and iPhone13Pro (bottom)
Conclusion
ArkUI-X redefines cross-platform development through three core capabilities:
✅ True Native Performance – Eliminates WebView/JS bridge overhead
✅ Unified Development Paradigm – ArkTS syntax abstracts platform differences
✅ Seamless Ecosystem Integration – Direct access to HarmonyOS/iOS native APIs
"When I pressed 'Run' in DevEco Studio and saw the game launch simultaneously on HarmonyOS and iOS devices, I truly felt the future of cross-platform development has arrived."
Get Full Source Code | ArkUI-X Docs
This practice demonstrates that ArkUI-X achieves "code once, run natively everywhere" while maintaining native performance, paving a new path for full-scenario application development.
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