Move ToastUtils to Utils

WordPressUtils/src/main/java/org/wordpress/android/util/ToastUtils.java

@@ -0,0 +1,36 @@
+package org.wordpress.android.util;
+
+import android.content.Context;
+import android.view.Gravity;
+import android.widget.Toast;
+
+/**
+ * Provides a simplified way to show toast messages without having to create the toast, set the
+ * desired gravity, etc.
+ */
+public class ToastUtils {
+    public enum Duration {SHORT, LONG}
+
+    private ToastUtils() {
+        throw new AssertionError();
+    }
+
+    public static void showToast(Context context, int stringResId) {
+        showToast(context, stringResId, Duration.SHORT);
+    }
+
+    public static void showToast(Context context, int stringResId, Duration duration) {
+        showToast(context, context.getString(stringResId), duration);
+    }
+
+    public static void showToast(Context context, String text) {
+        showToast(context, text, Duration.SHORT);
+    }
+
+    public static void showToast(Context context, String text, Duration duration) {
+        Toast toast = Toast.makeText(context, text,
+                (duration == Duration.SHORT ? Toast.LENGTH_SHORT : Toast.LENGTH_LONG));
+        toast.setGravity(Gravity.CENTER, 0, 0);
+        toast.show();
+    }
+}