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Use reflection to find the platform adapters

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This commit is contained in:
Matthew Simmons
2011-01-21 17:09:25 -05:00
parent adc4621711
commit baccb5d12e
1 changed files with 22 additions and 5 deletions
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MyTracks/src/com/google/android/apps/mytracks/util/ApiFeatures.java
+22 -5
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@@ -34,6 +34,11 @@ public class ApiFeatures {
public static final int ANDROID_API_LEVEL = Integer.parseInt( public static final int ANDROID_API_LEVEL = Integer.parseInt(
Build.VERSION.SDK); Build.VERSION.SDK);
private static final String PLATFORM_ADAPTER_GINGERBREAD =
"com.google.android.apps.mytracks.util.GingerbreadPlatformAdapter";
private static final String PLATFORM_ADAPTER_ECLAIR =
"com.google.android.apps.mytracks.util.EclairPlatformAdapter";
private static ApiFeatures instance; private static ApiFeatures instance;
/** /**
@@ -63,15 +68,27 @@ public class ApiFeatures {
*/ */
protected ApiFeatures() { protected ApiFeatures() {
if (getApiLevel() >= 9) { if (getApiLevel() >= 9) {
apiPlatformAdapter = new GingerbreadPlatformAdapter(); apiPlatformAdapter = locatePlatformAdapter(PLATFORM_ADAPTER_GINGERBREAD);
} else if (getApiLevel() >= 5) { } else if (getApiLevel() >= 5) {
apiPlatformAdapter = new EclairPlatformAdapter(); apiPlatformAdapter = locatePlatformAdapter(PLATFORM_ADAPTER_ECLAIR);
} else { }
Log.i(MyTracksConstants.TAG,
"ApiFeatures: Using default platform adapter"); if (apiPlatformAdapter == null) {
// Cupcake adapter is always supported, so it's safe to do static linkage. // Cupcake adapter is always supported, so it's safe to do static linkage.
apiPlatformAdapter = new CupcakePlatformAdapter(); apiPlatformAdapter = new CupcakePlatformAdapter();
} }
Log.i(MyTracksConstants.TAG, "Using platform adapter " + apiPlatformAdapter.getClass());
}
private ApiPlatformAdapter locatePlatformAdapter(String className) {
try {
Class<?> clazz = Class.forName(className);
return (ApiPlatformAdapter) clazz.newInstance();
} catch (Exception e) {
Log.i(MyTracksConstants.TAG, "ApiFeatures: Unable to instantiate " + className, e);
return null;
}
} }
public ApiPlatformAdapter getApiPlatformAdapter() { public ApiPlatformAdapter getApiPlatformAdapter() {