@Override public int getColumnCount() {
			return mAppendSummaryColumn ? super.getColumnCount() + 1 : super.getColumnCount();
		}
Documents provider for accessing files in / outside Island.

Created by Oasis on 2017/8/29.
fileprovider/src/main/java/com/oasisfeng/island/fileprovider/ExternalStorageProviderProxy.java