Android : 04-TheFragmentClass: add

1 files changed, 52 insertions, 0 deletions

diff --git a/Android/04-TheFragmentClass/FragmentsLab/src/course/labs/fragmentslab/MainActivity.java b/Android/04-TheFragmentClass/FragmentsLab/src/course/labs/fragmentslab/MainActivity.java
new file mode 100644
index 0000000..6309bae
--- /dev/null
+++ b/Android/04-TheFragmentClass/FragmentsLab/src/course/labs/fragmentslab/MainActivity.java
@@ -0,0 +1,52 @@
+package course.labs.fragmentslab;
+
+import android.app.Activity;
+import android.app.FragmentTransaction;
+import android.os.Bundle;
+import android.util.Log;
+
+public class MainActivity extends Activity implements
+FriendsFragment.SelectionListener {
+
+    private static final String TAG = "Lab-Fragments";
+
+    private FriendsFragment mFriendsFragment;
+    private FeedFragment mFeedFragment;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.main_activity);
+        // If the layout is single-pane, create the FriendsFragment
+        // and add it to the Activity
+        if (!isInTwoPaneMode()) {
+            mFriendsFragment = new FriendsFragment();
+            //TODO 1 - add the FriendsFragment to the fragment_container
+        } else {
+            // Otherwise, save a reference to the FeedFragment for later use
+            mFeedFragment = (FeedFragment) getFragmentManager().findFragmentById(R.id.feed_frag);
+        }
+    }
+
+    // If there is no fragment_container ID, then the application is in
+    // two-pane mode
+    private boolean isInTwoPaneMode() {
+        return findViewById(R.id.fragment_container) == null;
+    }
+
+    // Display selected Twitter feed
+    public void onItemSelected(int position) {
+        Log.i(TAG, "Entered onItemSelected(" + position + ")");
+        // If there is no FeedFragment instance, then create one
+        if (mFeedFragment == null)
+            mFeedFragment = new FeedFragment();
+        // If in single-pane mode, replace single visible Fragment
+        if (!isInTwoPaneMode()) {
+            //TODO 2 - replace the fragment_container with the FeedFragment
+            // execute transaction now
+            getFragmentManager().executePendingTransactions();
+        }
+        // Update Twitter feed display on FriendFragment
+        mFeedFragment.updateFeedDisplay(position);
+    }
+}