OEM-Specific Behavior

Many Android OEMs implement aggressive battery optimization beyond stock Android. This guide documents known behaviors and workarounds.

Aggressive OEMs

The following manufacturers are known to have aggressive background process killing:

OEM	Severity	Key Issues
Xiaomi / Redmi	🔴 Very High	MIUI kills apps aggressively, requires special permissions
Oppo / Realme	🔴 Very High	ColorOS has hidden battery optimizer
Vivo	🔴 Very High	Funtouch OS blocks background starts
Samsung (OneUI)	🟠 High	Sleeping apps, adaptive battery aggressive
Huawei / Honor	🔴 Very High	EMUI has strictest restrictions
OnePlus	🟠 High	OxygenOS inherits Oppo behavior
Google Pixel	🟢 Low	Stock Android, predictable behavior

What Will Get Your App Killed

These patterns trigger aggressive app killing:

Xiaomi / Redmi (MIUI)

Required Settings

1. Settings → Apps → Manage apps → [Your App] → Autostart: Enable
2. Settings → Battery & performance → [Your App] → No restrictions
3. Recent apps → Lock the app (prevents swipe-kill)

Programmatic Detection

fun isMIUI(): Boolean {
    return !TextUtils.isEmpty(getSystemProperty("ro.miui.ui.version.name"))
}

fun showMIUISettings(context: Context) {
    try {
        val intent = Intent().apply {
            component = ComponentName(
                "com.miui.securitycenter",
                "com.miui.permcenter.autostart.AutoStartManagementActivity"
            )
        }
        context.startActivity(intent)
    } catch (e: Exception) {
        // Fallback to app settings
        openAppSettings(context)
    }
}

Samsung (OneUI)

Required Settings

1. Settings → Battery → Background usage limits → Never sleeping apps → Add app
2. Settings → Apps → [Your App] → Battery → Unrestricted

Programmatic Guidance

fun isSamsung(): Boolean {
    return Build.MANUFACTURER.equals("samsung", ignoreCase = true)
}

fun showSamsungBatterySettings(context: Context) {
    try {
        val intent = Intent().apply {
            component = ComponentName(
                "com.samsung.android.lool",
                "com.samsung.android.sm.ui.battery.BatteryActivity"
            )
        }
        context.startActivity(intent)
    } catch (e: Exception) {
        openAppSettings(context)
    }
}

Huawei / Honor (EMUI)

Required Settings

1. Settings → Battery → App launch → [Your App] → Manage manually → Enable all
2. Settings → Apps → [Your App] → Battery → Unrestricted
3. Phone Manager → Lock screen cleanup → [Your App] → Disable

Oppo / Vivo / Realme

Required Settings

1. Settings → Battery → [Your App] → Allow background activity
2. Settings → Apps → [Your App] → Auto-launch → Enable
3. Recent apps → Lock the app

OEM Detection Helper

LiteP2P provides a helper to detect and guide users:

// Check if device needs special configuration
if (LiteP2P.needsOEMConfiguration(context)) {
    val oemInfo = LiteP2P.getOEMInfo(context)

    // Show appropriate guidance
    showOEMConfigDialog(
        oemName = oemInfo.manufacturer,
        instructions = oemInfo.instructions,
        settingsIntent = oemInfo.settingsIntent
    )
}

// Or use built-in UI
LiteP2P.showOEMConfigurationGuide(activity) { completed ->
    if (completed) {
        Log.d("LiteP2P", "User completed OEM configuration")
    }
}

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