1 files changed, 51 insertions, 0 deletions
diff --git a/org_apg_integration_lib/src/org/thialfihar/android/apg/integration/Util.java b/org_apg_integration_lib/src/org/thialfihar/android/apg/integration/Util.java
new file mode 100644
index 000000000..ca7fa21b5
--- /dev/null
+++ b/org_apg_integration_lib/src/org/thialfihar/android/apg/integration/Util.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2010-2011 K-9 Mail Contributors
+ * Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * 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 org.thialfihar.android.apg.integration;
+
+import android.content.Context;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager.NameNotFoundException;
+
+import android.widget.Toast;
+
+public class Util {
+
+    /**
+     * Check whether APG is installed and at a high enough version.
+     * 
+     * @param context
+     * @return whether a suitable version of APG was found
+     */
+    public boolean isApgAvailable(Context context) {
+        try {
+            PackageInfo pi = context.getPackageManager().getPackageInfo(Constants.APG_PACKAGE_NAME,
+                    0);
+            if (pi.versionCode >= Constants.MIN_REQUIRED_VERSION) {
+                return true;
+            } else {
+                Toast.makeText(context,
+                        "This APG version is not supported! Please update to a newer one!",
+                        Toast.LENGTH_LONG).show();
+            }
+        } catch (NameNotFoundException e) {
+            // not found
+        }
+
+        return false;
+    }
+}