具有额外未使用依赖性的Android Gradle

Question

我的应用程序中有四个库如下：

compile 'com.android.support:appcompat-v7:25.2.0'
compile 'com.android.support:design:25.2.0'
compile 'com.android.support:cardview-v7:25.2.0'
compile 'com.android.support:recyclerview-v7:25.2.0'

有额外的依赖[见图片]：

现在每个依赖的国家：

程序兼容性-V7

Library stats - click for more information
    com.android.support:appcompat-v7:25.2.0 [5705]
Dependencies (some might be shared with other libraries): [13458] 
    com.android.support:animated-vector-drawable:25.2.0 [183]
    com.android.support:support-annotations:25.2.0 [32]
    com.android.support:support-compat:25.2.0 [6564]
    com.android.support:support-core-ui:25.2.0 [1992]
    com.android.support:support-core-utils:25.2.0 [929]
    com.android.support:support-fragment:25.2.0 [1377]
    com.android.support:support-media-compat:25.2.0 [1983]
    com.android.support:support-v4:25.2.0 [2]
    com.android.support:support-vector-drawable:25.2.0 [396]

设计支持库：

Library stats - click for more information
    com.android.support:design:25.2.0 [2749]
Dependencies (some might be shared with other libraries): [22434] 
    com.android.support:animated-vector-drawable:25.2.0 [183]
    com.android.support:appcompat-v7:25.2.0 [5705]
    com.android.support:recyclerview-v7:25.2.0 [2405]
    com.android.support:support-annotations:25.2.0 [32]
    com.android.support:support-compat:25.2.0 [6564]
    com.android.support:support-core-ui:25.2.0 [1992]
    com.android.support:support-core-utils:25.2.0 [929]
    com.android.support:support-fragment:25.2.0 [1377]
    com.android.support:support-media-compat:25.2.0 [1983]
    com.android.support:support-v4:25.2.0 [2]
    com.android.support:support-vector-drawable:25.2.0 [396]
    com.android.support:transition:25.2.0 [866]

问题：

• 当我们考虑apk的大小时，是否需要排除常见的依赖项？
• 如果设计支持库有 appcompat-v7 ，那么是否需要添加 appcompat-v7？

提前谢谢。

Answer 1

  

当我们考虑apk的大小时，是否需要排除常见的依赖关系？

Gradle为你做到了。它不会两次添加相同的依赖项。

  

如果设计支持库有appcompat-v7则需要添加appcompat-v7吗？

不，添加设计库就足够了 Gradle将为您下载所有嵌套依赖项，然后是appcompat-v7库。