Support for device management, limits, and contact requests.

// FREEBIE

src/org/thoughtcrime/securesms/database/loaders/DeviceListLoader.java

@@ -0,0 +1,58 @@
+package org.thoughtcrime.securesms.database.loaders;
+
+import android.content.Context;
+import android.support.v4.content.AsyncTaskLoader;
+import android.util.Log;
+
+import org.whispersystems.textsecure.api.TextSecureAccountManager;
+import org.whispersystems.textsecure.api.messages.multidevice.DeviceInfo;
+import org.whispersystems.textsecure.api.push.TextSecureAddress;
+
+import java.io.IOException;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.Iterator;
+import java.util.List;
+
+public class DeviceListLoader extends AsyncTaskLoader<List<DeviceInfo>> {
+
+  private static final String TAG = DeviceListLoader.class.getSimpleName();
+
+  private final TextSecureAccountManager accountManager;
+
+  public DeviceListLoader(Context context, TextSecureAccountManager accountManager) {
+    super(context);
+    this.accountManager = accountManager;
+  }
+
+  @Override
+  public List<DeviceInfo> loadInBackground() {
+    try {
+      List<DeviceInfo>     devices  = accountManager.getDevices();
+      Iterator<DeviceInfo> iterator = devices.iterator();
+
+      while (iterator.hasNext()) {
+        if ((iterator.next().getId() == TextSecureAddress.DEFAULT_DEVICE_ID)) {
+          iterator.remove();
+        }
+      }
+
+      Collections.sort(devices, new DeviceInfoComparator());
+
+      return devices;
+    } catch (IOException e) {
+      Log.w(TAG, e);
+      return null;
+    }
+  }
+
+  private static class DeviceInfoComparator implements Comparator<DeviceInfo> {
+
+    @Override
+    public int compare(DeviceInfo lhs, DeviceInfo rhs) {
+      if      (lhs.getCreated() < rhs.getCreated())  return -1;
+      else if (lhs.getCreated() != rhs.getCreated()) return 1;
+      else                                           return 0;
+    }
+  }
+}