Add viewpager sample

Author: Daniel Novak

sample/src/main/AndroidManifest.xml

@@ -17,6 +17,7 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity android:name=".activity.ViewPagerActivity"/>
     </application>
 
 </manifest>

sample/src/main/java/eu/inloop/viewmodel/sample/activity/ViewPagerActivity.java

@@ -0,0 +1,39 @@
+package eu.inloop.viewmodel.sample.activity;
+
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentManager;
+import android.support.v4.app.FragmentStatePagerAdapter;
+import android.support.v4.view.ViewPager;
+import android.support.v7.app.AppCompatActivity;
+
+import eu.inloop.viewmodel.sample.R;
+import eu.inloop.viewmodel.sample.fragment.PagerFragment;
+
+public class ViewPagerActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_pager);
+
+        final ViewPager viewPager = (ViewPager) findViewById(R.id.pager);
+        viewPager.setAdapter(new TestPagerAdapter(getSupportFragmentManager()));
+    }
+    
+    private final static class TestPagerAdapter extends FragmentStatePagerAdapter {
+        public TestPagerAdapter(FragmentManager fm) {
+            super(fm);
+        }
+
+        @Override
+        public Fragment getItem(int position) {
+            return PagerFragment.newInstance(position);
+        }
+
+        @Override
+        public int getCount() {
+            return 10;
+        }
+    }
+}

sample/src/main/java/eu/inloop/viewmodel/sample/fragment/PagerFragment.java

@@ -0,0 +1,54 @@
+package eu.inloop.viewmodel.sample.fragment;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import com.squareup.leakcanary.RefWatcher;
+
+import eu.inloop.viewmodel.base.ViewModelBaseFragment;
+import eu.inloop.viewmodel.sample.R;
+import eu.inloop.viewmodel.sample.SampleApplication;
+import eu.inloop.viewmodel.sample.viewmodel.PageModel;
+import eu.inloop.viewmodel.sample.viewmodel.view.IPageView;
+
+public class PagerFragment extends ViewModelBaseFragment<IPageView, PageModel> {
+
+    public static PagerFragment newInstance(int position) {
+        final Bundle bundle = new Bundle();
+        bundle.putInt("position", position);
+        final PagerFragment fragment = new PagerFragment();
+        fragment.setArguments(bundle);
+        return fragment;
+    }
+
+    @Nullable
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        return inflater.inflate(R.layout.fragment_pager, container, false);
+    }
+
+    @Override
+    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+        ((TextView)view.findViewById(R.id.text)).setText(Integer.toString(getArguments().getInt("position")));
+    }
+
+    @Override
+    public Class<PageModel> getViewModelClass() {
+        return PageModel.class;
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+
+        // watch for memory leaks
+        RefWatcher refWatcher = SampleApplication.getRefWatcher(getActivity());
+        refWatcher.watch(this);
+    }
+}

sample/src/main/java/eu/inloop/viewmodel/sample/fragment/UserListFragment.java

@@ -1,5 +1,6 @@
 package eu.inloop.viewmodel.sample.fragment;
 
+import android.content.Intent;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.view.LayoutInflater;
@@ -20,6 +21,7 @@
 import eu.inloop.viewmodel.base.ViewModelBaseFragment;
 import eu.inloop.viewmodel.sample.R;
 import eu.inloop.viewmodel.sample.SampleApplication;
+import eu.inloop.viewmodel.sample.activity.ViewPagerActivity;
 import eu.inloop.viewmodel.sample.viewmodel.UserListViewModel;
 import eu.inloop.viewmodel.sample.viewmodel.view.IUserListView;
 
@@ -65,6 +67,12 @@ public void onClick(View view) {
                 getActivity().startActivity(getActivity().getIntent());
             }
         });
+        headerView.findViewById(R.id.button3).setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                startActivity(new Intent(getContext(), ViewPagerActivity.class));
+            }
+        });
         mListview.addHeaderView(headerView, null, false);
         return view;
     }

sample/src/main/java/eu/inloop/viewmodel/sample/viewmodel/PageModel.java

@@ -0,0 +1,7 @@
+package eu.inloop.viewmodel.sample.viewmodel;
+
+import eu.inloop.viewmodel.AbstractViewModel;
+import eu.inloop.viewmodel.sample.viewmodel.view.IPageView;
+
+public class PageModel extends AbstractViewModel<IPageView> {
+}

sample/src/main/java/eu/inloop/viewmodel/sample/viewmodel/view/IPageView.java

@@ -0,0 +1,6 @@
+package eu.inloop.viewmodel.sample.viewmodel.view;
+
+import eu.inloop.viewmodel.IView;
+
+public class IPageView implements IView {
+}

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

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical" android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <android.support.v4.view.ViewPager
+        android:id="@+id/pager"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"/>
+
+</LinearLayout>

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

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical" android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:gravity="center">
+
+    <TextView
+        android:id="@+id/text"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:textSize="30sp"
+        />
+
+</LinearLayout>

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

@@ -22,4 +22,10 @@
         android:text="@string/userlist_close_activity"
         android:layout_height="wrap_content" />
 
+    <Button
+        android:id="@+id/button3"
+        android:layout_width="match_parent"
+        android:text="@string/userlist_open_fragment_pager"
+        android:layout_height="wrap_content" />
+
 </LinearLayout>

sample/src/main/res/values/strings.xml

@@ -8,6 +8,7 @@
         The result will be kept in the ViewModel memory. You can also schedule item deletion by clicking on a row.</string>
     <string name="userlist_open_next_fragment">Open next fragment in backstack</string>
     <string name="userlist_close_activity">Restart activity</string>
+    <string name="userlist_open_fragment_pager">Open fragment pager</string>
     <string name="empty_fragment_text">Test</string>
 
 </resources>