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Porting to Nokia X

Maciej Matyjas – Mobile Technology Lead - @matyjas

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Porting to Nokia X

• About Me• About Nokia X• Secret Devices and NDAs• Firmware Updates• Go AOSP• Here™ Maps for Google Maps v1• Here™ Maps for Google Maps v2• Analytics• Publishing & Proguard• Wrap up

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About Me

• Does not work for Nokia©• Pisces• Shipped Meego apps• Enjoys long walks on the beach

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About Nokia X

• AOSP• Plus• Single back button• Nokia Here Maps• Nokia In-App Payments• Nokia Notifications• Fastlane UI

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About Nokia X’s Fastlane UI

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About Nokia X

• No GMS• Targets users between Asha and Lumia ranges• Combines aspects of• Asha• Meego• WinPhone• Android

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Secret Devices and NDAs

• Need to know basis• Identifying allies• Chinese walls• Stealthy intelligence gathering• Cloak and dagger with the Analytics team• Is our Build Manager a double agent?

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Firmware Updates

• Constantly updating firmware• Reconnect to network, enable location, etc• Always a little worried of brickwareing• Never sure if it was something I did or the

firmware• “Blame it on the firmware, cos the firmware don’t

care”

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Port that App

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Go AOSP

• Make sure your ‘Project Build Target’ is AOSP• Ship?

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Here Maps for Google Maps v1

• Manifest mods• Add “com.google.android.maps.sdk.jar” from

Nokia• Make sure its exported with your .apk file• Ship?

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Here Maps for Google Maps v2

• Not moving as quickly as Google’s releases• Same manifest mods• Replace Google Play Services library project

with reference_v2_lib • Add isMapsV2EquivalentAvailable() to our

GooglePlayServicesChecker.java• Few cases where initialization order differs to

Google’s Maps v2

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Here Maps for Google Maps v2

public void add(GoogleMap map, MarkerDataHolder holder) { … // mm:: visible region might be null if this is // called before map is visible if ((map.getProjection().getVisibleRegion() != null) && (map.getProjection().getVisibleRegion() .latLngBounds.contains(position))) {

markers.add( map.addMarker(holder.getMarkerOpts())); } }

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Here Maps for Google Maps v2

// mm:: particularly insidious since on bg

if (map.getProjection().getVisibleRegion() != null) { LatLngBounds bounds = map.getProjection() .getVisibleRegion() .latLngBounds; … }

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Here Maps for Google Maps v2

@Override public View getInfoWindow(Marker marker) { … // mm:: this works around an issue // rendering InfoWindows on Here maps mContents.setLayoutParams( new ViewGroup.LayoutParams( LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)); return mContents; }

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Here Maps for Google Maps v2

• That is it!• Lets demo

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Here Maps for Google Maps v2

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Here Maps for Google Maps v2

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Here Maps for Google Maps v2

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Analytics

1. Debrei Tamás: open config.xml in hotels-logic-library

2. Debrei Tamás: <confvalue key = "APP_STORE_NAME" value = "GOOGLE"/>

3. Debrei Tamás: replace GOOGLE with NONBRAND

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Publishing & Proguard

• A little tricky due to maps wrappers• Couldn’t exactly Google for ‘Nokia secret

Android platform maps wrapper Proguard setup’• Or ask on Stack Overflow• But Nokia support was terrific

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Publishing & Proguard

# here maps-keep class com.nokia.** { *; }-keep interface com.nokia.** { *; }-dontwarn com.nokia.**-keep class com.here.** { *; }-keep interface com.here.** { *; }-dontwarn com.here.**

# u might also need to tell Proguard to leave the wrapper API intact w/:-keep class com.google.android.gms.maps.** { *; }-keep interface com.google.android.gms.maps.** { *; }-dontwarn com.google.android.gms.maps.**

# here maps v1-keep public class com.google.android.maps.Projection-dontwarn com.google.android.maps.PixelConverter-dontwarn com.google.android.maps.MapView-keep class com.google.**-dontwarn com.google.**

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Wrap Up

• Easiest is if you have no Google dependencies• Easy if you just use Google Maps v1• Maps v2 makes it a bit harder• Probably harder still the tighter you are tied to

Google• Consider a generic maps solution

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Questions?

Maciej Matyjas – Mobile Technology Lead - @matyjas

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