new icon, new about dialog, some refactorings

src/org/apg/ui/AboutActivity.java

@@ -0,0 +1,51 @@
+package org.apg.ui;
+
+import org.apg.Constants;
+import org.apg.R;
+
+import android.app.Activity;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.PackageManager.NameNotFoundException;
+import android.os.Bundle;
+import android.util.Log;
+import android.widget.TextView;
+
+public class AboutActivity extends Activity {
+    Activity mActivity;
+
+    /**
+     * Instantiate View for this Activity
+     */
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        setContentView(R.layout.about_activity);
+
+        mActivity = this;
+
+        TextView versionText = (TextView) findViewById(R.id.about_version);
+        versionText.setText(getString(R.string.about_version) + " " + getVersion());
+    }
+
+    /**
+     * Get the current package version.
+     * 
+     * @return The current version.
+     */
+    private String getVersion() {
+        String result = "";
+        try {
+            PackageManager manager = mActivity.getPackageManager();
+            PackageInfo info = manager.getPackageInfo(mActivity.getPackageName(), 0);
+
+            result = String.format("%s (%s)", info.versionName, info.versionCode);
+        } catch (NameNotFoundException e) {
+            Log.w(Constants.TAG, "Unable to get application version: " + e.getMessage());
+            result = "Unable to get application version.";
+        }
+
+        return result;
+    }
+}