COCOS2DX 安卓getMergeAssets 过期

因为升级 build:gradle 3.1到 build:gradle 3.4

com.android.tools.build:gradle:3.1.0

WARNING: API 'variant.getMergeAssets()' is obsolete and has been replaced with 'variant.getMergeAssetsProvider()'.

API variable.getMergeAssets ()已过时，已替换为variant.getMergeAssetsProvider()

解决方法：
app目录下build.grade中，更改variant.mergeAssets.doLast 为 variant.mergeAssetsProvider.get().doLast ：

android.applicationVariants.all { variant ->
    // delete previous files first
    delete "${buildDir}/intermediates/assets/${variant.dirName}"

    variant.mergeAssets.doLast {
        copy {
           from "${buildDir}/../../../../../res"
           into "${buildDir}/intermediates/assets/${variant.dirName}/res"
        }

修改后为

android.applicationVariants.all { variant ->
    // delete previous files first
    delete "${buildDir}/intermediates/assets/${variant.dirName}"

    variant.mergeAssetsProvider.get().doLast {
        copy {
           from "${buildDir}/../../../../../res"
           into "${buildDir}/intermediates/assets/${variant.dirName}/res"
        }