Android Samples: add Fragment example (#796)

vtm-android-example/src/org/oscim/android/test/FragmentActivity.java

@@ -0,0 +1,60 @@
+/*
+ * Copyright 2020 Meibes
+ *
+ * This program is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+ * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.oscim.android.test;
+
+import android.app.Activity;
+import android.app.Fragment;
+import android.app.FragmentTransaction;
+import android.os.Bundle;
+import android.view.Menu;
+import android.view.MenuItem;
+
+public class FragmentActivity extends Activity {
+
+    @SuppressWarnings("deprecation")
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_map_fragment);
+
+        setTitle(getClass().getSimpleName());
+
+        if (savedInstanceState == null) {
+            Fragment mapFragment = MapFragment.newInstance();
+            FragmentTransaction ft = getFragmentManager().beginTransaction();
+            ft.add(R.id.fragment_container, mapFragment).commit();
+        }
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        getMenuInflater().inflate(R.menu.fragment_menu, menu);
+        return true;
+    }
+
+    @SuppressWarnings("deprecation")
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        if (item.getItemId() == R.id.replace_fragment) {
+            Fragment blankFragment = BlankFragment.newInstance();
+            FragmentTransaction ft = getFragmentManager().beginTransaction();
+            ft.replace(R.id.fragment_container, blankFragment);
+            ft.addToBackStack(null);
+            ft.commit();
+            return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+}