fresco缓存路径

public class MyApp extends Application {      @Override          public void onCreate() {          super.onCreate();          //设置磁盘缓存             DiskCacheConfig diskCacheConfig =  DiskCacheConfig.newBuilder(this)               .setBaseDirectoryName("images")                       .setBaseDirectoryPath(Environment.getExternalStorageDirectory())                  .build();                  //设置磁盘缓存的配置,生成配置文件             ImagePipelineConfig config = ImagePipelineConfig.newBuilder(this)                    .setMainDiskCacheConfig(diskCacheConfig)                        .build();                  Fresco.initialize(this, config); //不设置默认传一个参数既可          }  }