Sample: Added an example of the grid in a fragment in an attempt to replicate #45

Author: denizmveli

sample/build.gradle

@@ -26,5 +26,6 @@ android {
 }
 
 dependencies {
+    compile 'com.android.support:support-v4:19.+'
     compile project(':library')
 }

sample/src/main/AndroidManifest.xml

@@ -23,6 +23,7 @@
         </activity>
 
         <activity android:name=".StaggeredGridActivity"/>
+        <activity android:name=".StaggeredGridActivityFragment"/>
         <activity android:name=".StaggeredGridEmptyViewActivity" />
         <activity android:name=".ListViewActivity"/>
 

sample/src/main/java/com/etsy/android/sample/ListViewActivity.java

@@ -1,13 +1,10 @@
 package com.etsy.android.sample;
 
 import android.app.Activity;
-import android.content.Context;
 import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.View;
-import android.view.ViewGroup;
 import android.widget.*;
-import com.etsy.android.grid.StaggeredGridView;
 
 import java.util.List;
 

sample/src/main/java/com/etsy/android/sample/MainActivity.java

@@ -14,6 +14,7 @@ protected void onCreate(Bundle savedInstanceState) {
         setContentView(R.layout.activity_main);
 
         findViewById(R.id.btn_sgv).setOnClickListener(this);
+        findViewById(R.id.btn_sgv_fragment).setOnClickListener(this);
         findViewById(R.id.btn_sgv_empty_view).setOnClickListener(this);
         findViewById(R.id.btn_listview).setOnClickListener(this);
     }
@@ -24,6 +25,9 @@ public void onClick(final View v) {
         if (v.getId() == R.id.btn_sgv) {
             startActivity(new Intent(this, StaggeredGridActivity.class));
         }
+        else if (v.getId() == R.id.btn_sgv_fragment) {
+            startActivity(new Intent(this, StaggeredGridActivityFragment.class));
+        }
         else if (v.getId() == R.id.btn_sgv_empty_view) {
             startActivity(new Intent(this, StaggeredGridEmptyViewActivity.class));
         }

sample/src/main/java/com/etsy/android/sample/StaggeredGridActivityFragment.java

@@ -0,0 +1,133 @@
+package com.etsy.android.sample;
+
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentActivity;
+import android.support.v4.app.FragmentManager;
+import android.util.Log;
+import android.view.*;
+import android.widget.AbsListView;
+import android.widget.AdapterView;
+import android.widget.TextView;
+import android.widget.Toast;
+import com.etsy.android.grid.StaggeredGridView;
+
+import java.util.ArrayList;
+
+public class StaggeredGridActivityFragment extends FragmentActivity {
+
+    private static final String TAG = "StaggeredGridActivityFragment";
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        setTitle("SGV");
+
+        final FragmentManager fm = getSupportFragmentManager();
+
+        // Create the list fragment and add it as our sole content.
+        if (fm.findFragmentById(android.R.id.content) == null) {
+            final StaggeredGridFragment fragment = new StaggeredGridFragment();
+            fm.beginTransaction().add(android.R.id.content, fragment).commit();
+        }
+    }
+
+
+    private class StaggeredGridFragment extends Fragment implements
+            AbsListView.OnScrollListener, AbsListView.OnItemClickListener {
+
+
+        private StaggeredGridView mGridView;
+        private boolean mHasRequestedMore;
+        private SampleAdapter mAdapter;
+
+        private ArrayList<String> mData;
+
+        @Override
+        public void onCreate(final Bundle savedInstanceState) {
+            super.onCreate(savedInstanceState);
+            setRetainInstance(true);
+        }
+
+        @Override
+        public View onCreateView(final LayoutInflater inflater, final ViewGroup container, final Bundle savedInstanceState) {
+            return inflater.inflate(R.layout.activity_sgv, container, false);
+        }
+
+        @Override
+        public void onActivityCreated(final Bundle savedInstanceState) {
+            super.onActivityCreated(savedInstanceState);
+
+            mGridView = (StaggeredGridView) getView().findViewById(R.id.grid_view);
+
+            if (savedInstanceState == null) {
+                final LayoutInflater layoutInflater = getActivity().getLayoutInflater();
+
+                View header = layoutInflater.inflate(R.layout.list_item_header_footer, null);
+                View footer = layoutInflater.inflate(R.layout.list_item_header_footer, null);
+                TextView txtHeaderTitle = (TextView) header.findViewById(R.id.txt_title);
+                TextView txtFooterTitle = (TextView) footer.findViewById(R.id.txt_title);
+                txtHeaderTitle.setText("THE HEADER!");
+                txtFooterTitle.setText("THE FOOTER!");
+
+                mGridView.addHeaderView(header);
+                mGridView.addFooterView(footer);
+            }
+
+            if (mAdapter == null) {
+                mAdapter = new SampleAdapter(getActivity(), R.id.txt_line1);
+            }
+
+            if (mData == null) {
+                mData = SampleData.generateSampleData();
+            }
+
+            for (String data : mData) {
+                mAdapter.add(data);
+            }
+
+            mGridView.setAdapter(mAdapter);
+            mGridView.setOnScrollListener(this);
+            mGridView.setOnItemClickListener(this);
+        }
+
+        @Override
+        public void onScrollStateChanged(final AbsListView view, final int scrollState) {
+            Log.d(TAG, "onScrollStateChanged:" + scrollState);
+        }
+
+        @Override
+        public void onScroll(final AbsListView view, final int firstVisibleItem, final int visibleItemCount, final int totalItemCount) {
+            Log.d(TAG, "onScroll firstVisibleItem:" + firstVisibleItem +
+                    " visibleItemCount:" + visibleItemCount +
+                    " totalItemCount:" + totalItemCount);
+            // our handling
+            if (!mHasRequestedMore) {
+                int lastInScreen = firstVisibleItem + visibleItemCount;
+                if (lastInScreen >= totalItemCount) {
+                    Log.d(TAG, "onScroll lastInScreen - so load more");
+                    mHasRequestedMore = true;
+                    onLoadMoreItems();
+                }
+            }
+        }
+
+        private void onLoadMoreItems() {
+            final ArrayList<String> sampleData = SampleData.generateSampleData();
+            for (String data : sampleData) {
+                mAdapter.add(data);
+            }
+            // stash all the data in our backing store
+            mData.addAll(sampleData);
+            // notify the adapter that we can update now
+            mAdapter.notifyDataSetChanged();
+            mHasRequestedMore = false;
+        }
+
+        @Override
+        public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
+            Toast.makeText(getActivity(), "Item Clicked: " + position, Toast.LENGTH_SHORT).show();
+        }
+    }
+}

sample/src/main/res/layout/activity_main.xml

@@ -12,6 +12,15 @@
         android:layout_margin="16dp"
         android:text="Staggered Grid View" />
 
+    <Button
+        android:id="@+id/btn_sgv_fragment"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:gravity="center"
+        android:padding="16dp"
+        android:layout_margin="16dp"
+        android:text="Staggered Grid View in Fragment" />
+
     <Button
         android:id="@+id/btn_sgv_empty_view"
         android:layout_width="match_parent"