altos{lib,ui,droid}: move OS specific code out of altoslib

This is to allow the usage of AltosLog on Android - no swing, so
we need to push the "home directory" code used to pick a default
telemetry logging path - using the PreferencesBackend interface
for now.

Signed-off-by: Mike Beattie <mike@ethernal.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroidPreferences.java b/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroidPreferences.java
index b8487d07..3b4bdcf8 100644
--- a/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroidPreferences.java
+++ b/altosdroid/src/org/altusmetrum/AltosDroid/AltosDroidPreferences.java
@@ -17,9 +17,12 @@
 
 package org.altusmetrum.AltosDroid;
 
+import java.io.File;
 import java.util.Map;
 import android.content.Context;
 import android.content.SharedPreferences;
+import android.os.Environment;
+
 import org.altusmetrum.AltosLib.*;
 
 public class AltosDroidPreferences implements AltosPreferencesBackend {
@@ -92,4 +95,7 @@ public class AltosDroidPreferences implements AltosPreferencesBackend {
 		editor.apply();
 	}
 
+	public File homeDirectory() {
+		return Environment.getExternalStorageDirectory();
+	}
 }