public BUILDER setDataSourceSupplier(@Nullable Supplier<DataSource<IMAGE>> dataSourceSupplier) {
    mDataSourceSupplier = dataSourceSupplier;
    return getThis();
  }
Sets the data source supplier to be used.

<p>Note: This is mutually exclusive with other image request setters.
drawee/src/main/java/com/facebook/drawee/controller/AbstractDraweeControllerBuilder.java