JNI NDK错误汇总

问题一：This app only has 32-bit [armeabi-v7a] native libraries.
解决：在app目录下的build.gradle的android结构里加上arm64-v8a，如下：
android {
  .......
  defaultConfig{
   ndk{ abiFilters 'armeabi-v7a', 'arm64-v8a' //abiFilters 'armeabi', 'armeabi-v7a' }
   packagingOptions { pickFirst 'lib/armeabi-v7a/libserial_port.so' }
  }
  ......
}
问题二：解决完问题一后出现More than one file was found with OS independent path 'lib/arm64-v8a/libserial_port.so'
解决：问题一的解决里 packagingOptions 里添加 pickFirst 'lib/arm64-v8a/libserial_port.so'，如下，
packagingOptions {
    pickFirst 'lib/armeabi-v7a/libserial_port.so'
    pickFirst 'lib/arm64-v8a/libserial_port.so'
}