- Use BluetoothDevice createInsecureRfcommSocketToServiceRecord for API level 10 or above.

- Use DecimalFormatSymbols getInstance for API level 9 or above.
- Use Arrays copyOfRange for API level 9 or above.
- Remove ApiFeatures hasStrictMode.
- Fix comment on MapOverlay to indicate that the two methods should only be
  used during testing.
- Use android.text.format.DateFormat to format date and time in DocsHelper.
  This DateFormat uses the same locale format as the phone configuration.

Fix DecimalFormat

MyTracks/src/com/google/android/apps/mytracks/MapOverlay.java

@@ -305,12 +305,12 @@ public class MapOverlay extends Overlay implements OnSharedPreferenceChangeListe
     return new Rect(cx - w / 2, cy - h / 2, cx + w / 2, cy + h / 2);
   }
  
-  // Visible for testing
+  // For use in testing only.
   public TrackPathPainter getTrackPathPainter() {
     return trackPathPainter;
   }
   
-  // Visible for testing
+  // For use in testing only.
   public void setTrackPathPainter(TrackPathPainter trackPathPainter) {
     this.trackPathPainter = trackPathPainter;
   }

MyTracks/src/com/google/android/apps/mytracks/io/docs/DocsHelper.java

@@ -34,6 +34,7 @@ import com.google.wireless.gdata.parser.ParseException;
 import com.google.wireless.gdata2.client.AuthenticationException;
 
 import android.content.Context;
+import android.text.format.DateFormat;
 import android.util.Log;
 
 import java.io.BufferedReader;
@@ -44,7 +45,6 @@ import java.io.OutputStream;
 import java.io.OutputStreamWriter;
 import java.net.URL;
 import java.net.URLConnection;
-import java.text.DateFormat;
 import java.util.Date;
 import java.util.concurrent.atomic.AtomicReference;
 
@@ -287,13 +287,16 @@ public class DocsHelper {
     String elevationUnit = context.getString(metricUnits ?
         R.string.meter : R.string.feet);
 
-    DateFormat trackDateFormat = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT);
-
+    java.text.DateFormat dateFormat = DateFormat.getDateFormat(context);
+    java.text.DateFormat timeFormat = DateFormat.getTimeFormat(context);
+    Date startTime = new Date(stats.getStartTime());
+    String dateString = dateFormat.format(startTime) + " " + timeFormat.format(startTime);
+    
     // Prepare the Post-Text we are going to send.
     DocsTagBuilder tagBuilder = new DocsTagBuilder(metricUnits)
         .append("name", track.getName())
         .append("description", track.getDescription())
-        .append("date", trackDateFormat.format(new Date(stats.getStartTime())))
+        .append("date", dateString)
         .append("totaltime", StringUtils.formatTimeAlwaysShowingHours(
             stats.getTotalTime()))
         .append("movingtime", StringUtils.formatTimeAlwaysShowingHours(

MyTracks/src/com/google/android/apps/mytracks/io/docs/DocsTagBuilder.java

@@ -15,6 +15,7 @@
  */
 package com.google.android.apps.mytracks.io.docs;
 
+import com.google.android.apps.mytracks.util.ApiFeatures;
 import com.google.android.apps.mytracks.util.StringUtils;
 import com.google.android.apps.mytracks.util.UnitConversions;
 
@@ -45,8 +46,11 @@ import java.util.Locale;
  * @author Matthew Simmons
  */
 class DocsTagBuilder {
+  
   private static final DecimalFormatSymbols FORMAT_SYMBOLS =
-      DecimalFormatSymbols.getInstance(Locale.ENGLISH);
+      ApiFeatures.getInstance().hasDecimalFormatSymbolsGetInstance() 
+          ? DecimalFormatSymbols.getInstance(Locale.ENGLISH)
+          : new DecimalFormatSymbols(Locale.ENGLISH);
   private static final NumberFormat LARGE_UNIT_FORMAT =
       new DecimalFormat("#,###,###.00", FORMAT_SYMBOLS);
   private static final NumberFormat SMALL_UNIT_FORMAT =

MyTracks/src/com/google/android/apps/mytracks/services/sensors/BluetoothConnectionManager.java

@@ -18,6 +18,7 @@ package com.google.android.apps.mytracks.services.sensors;
 
 import com.google.android.apps.mytracks.Constants;
 import com.google.android.apps.mytracks.content.Sensor;
+import com.google.android.apps.mytracks.util.ApiFeatures;
 
 import android.bluetooth.BluetoothAdapter;
 import android.bluetooth.BluetoothDevice;
@@ -30,6 +31,8 @@ import android.util.Log;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
 import java.util.UUID;
 
 /**
@@ -259,10 +262,29 @@ public class BluetoothConnectionManager {
     }
 
     private BluetoothSocket getSocket() throws IOException {
-      try {
-        return device.createInsecureRfcommSocketToServiceRecord(SPP_UUID);
-      } catch (IOException e) {
-        Log.e(Constants.TAG, "Unable to get insecure connect.", e);
+      if (ApiFeatures.getInstance().hasBluetoothDeviceCreateInsecureRfcommSocketToServiceRecord()) {
+        try {       
+          return device.createInsecureRfcommSocketToServiceRecord(SPP_UUID);
+        } catch (IOException e) {
+          Log.e(Constants.TAG, "Unable to get insecure connect.", e);
+        }
+      } else {
+        try {
+          Class<? extends BluetoothDevice> c = device.getClass();
+          Method insecure = c.getMethod("createInsecureRfcommSocket", Integer.class);
+          insecure.setAccessible(true);
+          return (BluetoothSocket) insecure.invoke(device, 1);
+        } catch (SecurityException e) {
+          Log.e(Constants.TAG, "Unable to get insecure connect.", e);
+        } catch (NoSuchMethodException e) {
+          Log.e(Constants.TAG, "Unable to get insecure connect.", e);
+        } catch (IllegalArgumentException e) {
+          Log.e(Constants.TAG, "Unable to get insecure connect.", e);
+        } catch (IllegalAccessException e) {
+          Log.e(Constants.TAG, "Unable to get insecure connect.", e);
+        } catch (InvocationTargetException e) {
+          Log.e(Constants.TAG, "Unable to get insecure connect.", e);
+        }
       }
       return device.createRfcommSocketToServiceRecord(SPP_UUID);
     }

MyTracks/src/com/google/android/apps/mytracks/services/sensors/ZephyrMessageParser.java

@@ -16,6 +16,7 @@
 package com.google.android.apps.mytracks.services.sensors;
 
 import com.google.android.apps.mytracks.content.Sensor;
+import com.google.android.apps.mytracks.util.ApiFeatures;
 
 import java.util.Arrays;
 
@@ -23,7 +24,7 @@ import java.util.Arrays;
  * An implementation of a Sensor MessageParser for Zephyr.
  *
  * @author Sandor Dornbush
- * @author Dominik Ršttsches
+ * @author Dominik R�ttsches
  */
 public class ZephyrMessageParser implements MessageParser {
 
@@ -56,13 +57,24 @@ public class ZephyrMessageParser implements MessageParser {
     return sds.build();
   }
 
+  /**
+   * Copies a byte array. In case Arrays.copyOfRange is not available.
+   */
+  private byte[] copyByteArray(byte[] input, int from, int to) {
+    int length = to - from;
+    byte[] output = new byte[length];
+    System.arraycopy(input, from, output, 0, length);
+    return output;
+  }
+  
   private void setCadence(Sensor.SensorDataSet.Builder sds, byte[] buffer) {
     // Device Firmware ID, Firmware Version, Hardware ID, Hardware Version
     // 0x1A00316550003162 produces erroneous values for Cadence and needs
     // a workaround based on the stride counter.
     // Firmware values range from field 3 to 10 (inclusive) of the byte buffer.
-    byte[] hardwareFirmwareId = Arrays.copyOfRange(buffer, 3, 11);
-
+    byte[] hardwareFirmwareId = ApiFeatures.getInstance().hasArraysCopyOfRange() 
+        ? Arrays.copyOfRange(buffer, 3, 11)
+        : copyByteArray(buffer, 3, 11);    
     Sensor.SensorData.Builder cadence = Sensor.SensorData.newBuilder();
 
     if (Arrays.equals(hardwareFirmwareId, CADENCE_BUG_FW_ID)) {

MyTracks/src/com/google/android/apps/mytracks/util/ApiFeatures.java

@@ -17,10 +17,16 @@ package com.google.android.apps.mytracks.util;
 
 import com.google.android.apps.mytracks.Constants;
 import com.google.api.client.http.HttpTransport;
+import com.google.api.client.http.apache.ApacheHttpTransport;
+import com.google.api.client.http.javanet.NetHttpTransport;
 
+import android.bluetooth.BluetoothDevice;
 import android.os.Build;
 import android.util.Log;
 
+import java.text.DecimalFormatSymbols;
+import java.util.Arrays;
+
 /**
  * Utility class for determining if newer-API features are available on the
  * current device.
@@ -32,7 +38,7 @@ public class ApiFeatures {
   /**
    * The API level of the Android version we're being run under.
    */
-  public static final int ANDROID_API_LEVEL = Integer.parseInt(
+  private static final int ANDROID_API_LEVEL = Integer.parseInt(
       Build.VERSION.SDK);
 
   private static ApiFeatures instance;
@@ -81,38 +87,17 @@ public class ApiFeatures {
     return apiPlatformAdapter;
   }
 
-  /**
-   * Returns whether cloud backup (a.k.a. Froyo backup) is available.
-   */
-  public boolean hasBackup() {
-    return getApiLevel() >= 8;
-  }
-
+  // API Level 4 Changes
+  
   /**
    * Returns whether text-to-speech is available.
    */
   public boolean hasTextToSpeech() {
-    if (getApiLevel() < 4) return false;
-
-    try {
-      Class.forName("android.speech.tts.TextToSpeech");
-    } catch (ClassNotFoundException ex) {
-      return false;
-    } catch (LinkageError er) {
-      return false;
-    }
-
-    return true;
-  }
-
-  public boolean hasStrictMode() {
-    return getApiLevel() >= 9;
-  }
-
-  public boolean isAudioFocusSupported() {
-    return getApiLevel() >= 8;
+    return getApiLevel() >= 4;
   }
 
+  // API Level 5 Changes
+  
   /**
    * There's a bug (#1587) in Cupcake and Donut which prevents you from
    * using a SQLiteQueryBuilder twice.  That is, if you call buildQuery
@@ -122,18 +107,57 @@ public class ApiFeatures {
    * up.  Specifically, it'll add extra parens which don't belong.
    */
   public boolean canReuseSQLiteQueryBuilder() {
-    return getApiLevel() > 4;
+    return getApiLevel() >= 5;
+  }
+  
+  // API Level 8 Changes
+  
+  public boolean isAudioFocusSupported() {
+    return getApiLevel() >= 8;
   }
   
   /**
-   * Returns true if com.google.api.client.javanet.NetHttpTransport should be
-   * used rather than com.google.api.client.apache.ApacheHttpTransport. See
-   * {@link HttpTransport} for more info.
+   * Returns whether cloud backup (a.k.a. Froyo backup) is available.
+   */
+  public boolean hasBackup() {
+    return getApiLevel() >= 8;
+  }
+  
+  // API Level 9 Changes
+
+  /**
+   * Returns true if {@link NetHttpTransport} should be used rather than
+   * {@link ApacheHttpTransport}. See {@link HttpTransport} for more info.
    */
   public boolean useNetHttpTransport() {
     return getApiLevel() >= 9;
   }
+  
+  /**
+   * Returns true if {@link DecimalFormatSymbols#getInstance} is available.
+   */
+  public boolean hasDecimalFormatSymbolsGetInstance() {
+    return getApiLevel() >= 9;
+  }
+  
+  /**
+   * Returns true if {@link Arrays#copyOfRange} is available.
+   */
+  public boolean hasArraysCopyOfRange() {
+    return getApiLevel() >= 9;
+  }
 
+  // API Level 10 changes
+  
+  /**
+   * Returns true if
+   * {@link BluetoothDevice#createInsecureRfcommSocketToServiceRecord} is
+   * available.
+   */
+  public boolean hasBluetoothDeviceCreateInsecureRfcommSocketToServiceRecord() {
+    return getApiLevel() >= 10;
+  }
+  
   // Visible for testing.
   protected int getApiLevel() {
     return ANDROID_API_LEVEL;