Android

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name: android description: Android build system and deployment patterns

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Android Build & Deploy

ADB Essentials

# Debug builds require -t flag (agents forget this)
adb install -r -t app-debug.apk
Filter logcat for app + errors only
adb logcat -s "YourApp:*" "*:E"

Gradle Critical Fixes

android {
    compileSdk 35
    defaultConfig {
        targetSdk 35  // MUST match or Play Console rejects
        multiDexEnabled true  // Required for 64K+ methods
    }
}
dependencies {
    // BOM prevents Compose version conflicts
    implementation platform('androidx.compose:compose-bom:2024.12.01')
}

Compose State Errors

// WRONG - recomputed every recomposition
val filtered = items.filter { it.isValid }
// CORRECT - remember expensive operations  
val filtered = remember(items) { items.filter { it.isValid } }
// WRONG - state resets on recomposition
var count by mutableStateOf(0)
// CORRECT - remember state
var count by remember { mutableStateOf(0) }

AndroidManifest Pitfall