Google Maps API v2使APK的大小大于旧版本

Question

有一个应用程序使用Google map API v2 Build Signed Release APK之后，文件长度太大我建立了“ HelloWord ”项目来测量长度，并将google_play_services_lib添加到项目中文件长度比“ HelloWord ” APK最多高2.2 Mb

来自SKD Manager的存储库和Google Play服务也已更新。

我使用Android Studio IDE（Gradle）并导入所有google-play-services。 是否可以导入其中的一部分 ？

Answer 1

假设您使用AS和Gradle作为构建脚本/依赖项管理

要导入整个Google Play服务，请使用以下依赖项：

compile 'com.google.android.gms:play-services:7.8.0'

其中包括所有服务资源和类，它的清单很大：

+--- com.google.android.gms:play-services:7.8.0
|    +--- com.google.android.gms:play-services-ads:7.8.0
|    |    +--- com.google.android.gms:play-services-base:7.8.0
|    |    |    \--- com.android.support:support-v4:22.2.0 -> 22.2.1
|    |    |         \--- com.android.support:support-annotations:22.2.1
|    |    +--- com.google.android.gms:play-services-analytics:7.8.0
|    |    |    \--- com.google.android.gms:play-services-base:7.8.0 (*)
|    |    \--- com.google.android.gms:play-services-appindexing:7.8.0
|    |         \--- com.google.android.gms:play-services-base:7.8.0 (*)
|    +--- com.google.android.gms:play-services-analytics:7.8.0 (*)
|    +--- com.google.android.gms:play-services-appindexing:7.8.0 (*)
|    +--- com.google.android.gms:play-services-appinvite:7.8.0
|    |    \--- com.google.android.gms:play-services-base:7.8.0 (*)
|    +--- com.google.android.gms:play-services-appstate:7.8.0
|    |    \--- com.google.android.gms:play-services-base:7.8.0 (*)
|    +--- com.google.android.gms:play-services-base:7.8.0 (*)
|    +--- com.google.android.gms:play-services-cast:7.8.0
|    |    +--- com.google.android.gms:play-services-base:7.8.0 (*)
|    |    \--- com.android.support:mediarouter-v7:22.2.0
|    |         \--- com.android.support:appcompat-v7:22.2.0
|    |              \--- com.android.support:support-v4:22.2.0 -> 22.2.1 (*)
|    +--- com.google.android.gms:play-services-drive:7.8.0
|    |    \--- com.google.android.gms:play-services-base:7.8.0 (*)
|    +--- com.google.android.gms:play-services-fitness:7.8.0
|    |    +--- com.google.android.gms:play-services-base:7.8.0 (*)
|    |    \--- com.google.android.gms:play-services-location:7.8.0
|    |         +--- com.google.android.gms:play-services-base:7.8.0 (*)
|    |         \--- com.google.android.gms:play-services-maps:7.8.0
|    |              \--- com.google.android.gms:play-services-base:7.8.0 (*)
|    +--- com.google.android.gms:play-services-games:7.8.0
|    |    +--- com.google.android.gms:play-services-base:7.8.0 (*)
|    |    \--- com.google.android.gms:play-services-drive:7.8.0 (*)
|    +--- com.google.android.gms:play-services-gcm:7.8.0
|    |    \--- com.google.android.gms:play-services-base:7.8.0 (*)
|    +--- com.google.android.gms:play-services-identity:7.8.0
|    |    \--- com.google.android.gms:play-services-base:7.8.0 (*)
|    +--- com.google.android.gms:play-services-location:7.8.0 (*)
|    +--- com.google.android.gms:play-services-maps:7.8.0 (*)
|    +--- com.google.android.gms:play-services-nearby:7.8.0
|    |    \--- com.google.android.gms:play-services-base:7.8.0 (*)
|    +--- com.google.android.gms:play-services-panorama:7.8.0
|    |    \--- com.google.android.gms:play-services-base:7.8.0 (*)
|    +--- com.google.android.gms:play-services-plus:7.8.0
|    |    \--- com.google.android.gms:play-services-base:7.8.0 (*)
|    +--- com.google.android.gms:play-services-safetynet:7.8.0
|    |    \--- com.google.android.gms:play-services-base:7.8.0 (*)
|    +--- com.google.android.gms:play-services-vision:7.8.0
|    |    \--- com.google.android.gms:play-services-base:7.8.0 (*)
|    +--- com.google.android.gms:play-services-wallet:7.8.0
|    |    +--- com.google.android.gms:play-services-base:7.8.0 (*)
|    |    +--- com.google.android.gms:play-services-identity:7.8.0 (*)
|    |    \--- com.google.android.gms:play-services-maps:7.8.0 (*)
|    \--- com.google.android.gms:play-services-wearable:7.8.0
|         \--- com.google.android.gms:play-services-base:7.8.0 (*)

要缩小尺寸，您可以使用以下三种选择：

• 仅添加您需要的一部分，例如。 com.google.android.gms:play-services-maps:7.8.0
• 排除不想要的零件

像这样：

compile('com.google.android.gms:play-services:7.8.0') {
    exclude module: 'play-services-fitness'
    exclude module: 'play-services-games'
    exclude module: 'play-services-wallet'
    exclude module: 'play-services-safetynet'
    exclude module: 'play-services-appinvite'
    exclude module: 'play-services-wearable'
    exclude module: 'play-services-cast'
}

• 或使用Proguard（minifyEnabled），它应从生成的APK资源和类中删减掉，这些资源和类不使用或不引用