Fix chart image axis.

2011-02-23 18:56:53 -08:00
commit 7ada8f18fb
381 changed files with 48921 additions and 0 deletions
@@ -0,0 +1,130 @@
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.util;
+
+import com.google.android.apps.mytracks.MyTracksConstants;
+
+import android.os.Build;
+import android.util.Log;
+
+/**
+ * Utility class for determining if newer-API features are available on the
+ * current device.
+ *
+ * @author Rodrigo Damazio
+ */
+public class ApiFeatures {
+
+  /**
+   * The API level of the Android version we're being run under.
+   */
+  public static final int ANDROID_API_LEVEL = Integer.parseInt(
+      Build.VERSION.SDK);
+
+  private static ApiFeatures instance;
+  
+  /**
+   * The API platform adapter supported by this system.
+   */
+  private ApiPlatformAdapter apiPlatformAdapter;
+
+  /**
+   * Returns the singleton instance of this class.
+   */
+  public static ApiFeatures getInstance() {
+    if (instance == null) {
+      instance = new ApiFeatures();
+    }
+    return instance;
+  }
+
+  /**
+   * Injects a specific singleton instance, to be used for unit tests.
+   */
+  public static void injectInstance(ApiFeatures instance) {
+    ApiFeatures.instance = instance;
+  }
+
+  /**
+   * Allow subclasses for mocking, but no direct instantiation.
+   */
+  protected ApiFeatures() {
+    // It is safe to import unsupported classes as long as we only actually
+    // load the class when supported.
+    if (getApiLevel() >= 9) {
+      apiPlatformAdapter = new GingerbreadPlatformAdapter();
+    } else if (getApiLevel() >= 5) {
+      apiPlatformAdapter = new EclairPlatformAdapter();
+    } else {
+      apiPlatformAdapter = new CupcakePlatformAdapter();
+    }
+
+    Log.i(MyTracksConstants.TAG, "Using platform adapter " + apiPlatformAdapter.getClass());
+  }
+
+  public ApiPlatformAdapter getApiPlatformAdapter() {
+    return apiPlatformAdapter;
+  }
+
+  /**
+   * Returns whether cloud backup (a.k.a. Froyo backup) is available.
+   */
+  public boolean hasBackup() {
+    return getApiLevel() >= 8;
+  }
+
+  /**
+   * 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;
+  }
+  
+  /**
+   * There's a bug (#1587) in Cupcake and Donut which prevents you from
+   * using a SQLiteQueryBuilder twice.  That is, if you call buildQuery
+   * on a given instance (to log the statement for debugging), and then
+   * call query on the same instance to make it actually do the query,
+   * it'll regenerate the query for the second call, and will screw it
+   * up.  Specifically, it'll add extra parens which don't belong.
+   */
+  public boolean canReuseSQLiteQueryBuilder() {
+    return getApiLevel() > 4;
+  }
+
+  // Visible for testing.
+  protected int getApiLevel() {
+    return ANDROID_API_LEVEL;
+  }
+}