Difference between Context.openFileInput() and using the Java.IO classes

Question

上下文IO API（openFileInput和openFileOutput）与在Context.getFilesDir上使用Java的IO API有什么区别？

Answer 1

Nothing much. For example, here is the implementation of openFileInput() from ContextImpl (the base implementation of Context ):

@Override
public FileInputStream openFileInput(String name)
  throws FileNotFoundException {
  File f = makeFilename(getFilesDir(), name);
  return new FileInputStream(f);
}

where makeFilename() is there to yell at you if you have a directory separator in the filename.

Personally, I use getFilesDir() , as it is more flexible.