Fragments rotation bugs correction

New task layout for large screens (tablets)
Better task list layout

DoNExt/.idea/gradle.xml

@@ -5,7 +5,7 @@
       <GradleProjectSettings>
         <option name="distributionType" value="LOCAL" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="gradleHome" value="$APPLICATION_HOME_DIR$/gradle/gradle-2.14.1" />
+        <option name="gradleHome" value="C:\Program Files\Android\Android Studio\gradle\gradle-2.14.1" />
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />

DoNExt/app/build.gradle

@@ -8,8 +8,8 @@ android {
         applicationId "com.wismna.geoffroy.donext"
         minSdkVersion 15
         targetSdkVersion 25
-        versionCode 12
+        versionCode 13
-        versionName "1.1.0"
+        versionName "1.2.0"
     }
     buildTypes {
         release {
@@ -22,10 +22,10 @@ android {
 dependencies {
     compile fileTree(dir: 'libs', include: ['*.jar'])
     testCompile 'junit:junit:4.12'
-    compile 'com.android.support:appcompat-v7:25.1.1'
+    compile 'com.android.support:appcompat-v7:25.2.0'
-    compile 'com.android.support:design:25.1.1'
+    compile 'com.android.support:design:25.2.0'
-    compile 'com.android.support:support-v4:25.1.1'
+    compile 'com.android.support:support-v4:25.2.0'
-    compile 'com.android.support:percent:25.1.1'
+    compile 'com.android.support:percent:25.2.0'
-    compile 'com.android.support:recyclerview-v7:25.1.1'
+    compile 'com.android.support:recyclerview-v7:25.2.0'
-    compile 'com.google.android.gms:play-services-ads:10.0.1'
+    compile 'com.google.android.gms:play-services-ads:10.2.0'
 }

DoNExt/app/src/main/java/com/wismna/geoffroy/donext/activities/MainActivity.java

@@ -18,6 +18,10 @@ import android.support.v7.widget.Toolbar;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.ListAdapter;
+import android.widget.ListView;
 
 import com.wismna.geoffroy.donext.R;
 import com.wismna.geoffroy.donext.adapters.SmartFragmentStatePagerAdapter;
@@ -45,7 +49,7 @@ public class MainActivity extends AppCompatActivity implements TasksFragment.Tas
      * The {@link ViewPager} that will host the section contents.
      */
     private ViewPager mViewPager;
-    private  TabLayout tabLayout;
+    private TabLayout tabLayout;
     private List<TaskList> taskLists;
 
     @Override
@@ -82,21 +86,34 @@ public class MainActivity extends AppCompatActivity implements TasksFragment.Tas
                     PreferenceManager.getDefaultSharedPreferences(MainActivity.this);
             mViewPager.setCurrentItem(sharedPref.getInt("last_opened_tab", 0));
 
-            tabLayout = (TabLayout) findViewById(R.id.tabs);
+            View tabs = findViewById(R.id.tabs);
-            tabLayout.setupWithViewPager(mViewPager);
+            if (tabs instanceof TabLayout) {
+                tabLayout = (TabLayout) tabs;
+                tabLayout.setupWithViewPager(mViewPager);
 
-            // Handles scroll detection (only available for SDK version >=23)
+                // Handles scroll detection (only available for SDK version >=23)
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-                toggleTabLayoutArrows(tabLayout.getScrollX());
+                    toggleTabLayoutArrows(tabLayout.getScrollX());
-                //tabLayout.setScrollIndicators(TabLayout.SCROLL_INDICATOR_LEFT | TabLayout.SCROLL_INDICATOR_RIGHT);
+                    //tabLayout.setScrollIndicators(TabLayout.SCROLL_INDICATOR_LEFT | TabLayout.SCROLL_INDICATOR_RIGHT);
-                tabLayout.setOnScrollChangeListener(new View.OnScrollChangeListener() {
+                    tabLayout.setOnScrollChangeListener(new View.OnScrollChangeListener() {
+                        @Override
+                        public void onScrollChange(View v, int scrollX, int scrollY, int oldScrollX, int oldScrollY) {
+                            toggleTabLayoutArrows(scrollX);
+                        }
+                    });
+                }
+            }
+            else if (tabs instanceof ListView) {
+                ListView listView = (ListView) tabs;
+                listView.setAdapter(new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, taskLists));
+                listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                     @Override
-                    public void onScrollChange(View v, int scrollX, int scrollY, int oldScrollX, int oldScrollY) {
+                    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
-                        toggleTabLayoutArrows(scrollX);
+                        mViewPager.setCurrentItem(position);
+                        view.setSelected(true);
                     }
                 });
             }
-
             // Hide or show new task floating button
             FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
             fab.show();
@@ -221,16 +238,19 @@ public class MainActivity extends AppCompatActivity implements TasksFragment.Tas
     private void toggleTabLayoutArrows(int scrollX){
         // Hide left arrow when scrolled to the left
         View leftArrow = findViewById(R.id.left_arrow);
-        if (scrollX <= 1) leftArrow.setVisibility(View.INVISIBLE);
+        if (leftArrow != null) {
-        else leftArrow.setVisibility(View.VISIBLE);
+            if (scrollX <= 1) leftArrow.setVisibility(View.INVISIBLE);
-
+            else leftArrow.setVisibility(View.VISIBLE);
+        }
         // Hide right arrow when scrolled to the right
         View rightArrow = findViewById(R.id.right_arrow);
-        Point size = new Point();
+        if (rightArrow != null) {
-        getWindowManager().getDefaultDisplay().getSize(size);
+            Point size = new Point();
-        if (scrollX == tabLayout.getChildAt(0).getMeasuredWidth() - tabLayout.getMeasuredWidth())
+            getWindowManager().getDefaultDisplay().getSize(size);
-            rightArrow.setVisibility(View.INVISIBLE);
+            if (scrollX == tabLayout.getChildAt(0).getMeasuredWidth() - tabLayout.getMeasuredWidth())
-        else rightArrow.setVisibility(View.VISIBLE);
+                rightArrow.setVisibility(View.INVISIBLE);
+            else rightArrow.setVisibility(View.VISIBLE);
+        }
     }
 
     /**

DoNExt/app/src/main/java/com/wismna/geoffroy/donext/fragments/ConfirmDialogFragment.java

@@ -28,6 +28,7 @@ public class ConfirmDialogFragment extends DialogFragment {
         ConfirmDialogFragment fragment = new ConfirmDialogFragment();
         //fragment.message = message;
         fragment.confirmDialogListener = confirmDialogListener;
+        fragment.setRetainInstance(true);
         return fragment;
     }
 
@@ -70,4 +71,15 @@ public class ConfirmDialogFragment extends DialogFragment {
         dialog.setCanceledOnTouchOutside(true);
         return dialog;
     }
+
+    @Override
+    public void onDestroyView() {
+        Dialog dialog = getDialog();
+        // Stop the dialog from being dismissed on rotation, due to a bug with the compatibility library
+        // https://code.google.com/p/android/issues/detail?id=17423
+        if (dialog != null && getRetainInstance()) {
+            dialog.setDismissMessage(null);
+        }
+        super.onDestroyView();
+    }
 }

DoNExt/app/src/main/java/com/wismna/geoffroy/donext/fragments/TaskDialogFragment.java

@@ -51,7 +51,6 @@ public class TaskDialogFragment extends DialogFragment {
         fragment.task = task;
         fragment.taskLists = taskLists;
         fragment.mListener = newTaskListener;
-        // TODO: keep dialog open when rotating
         fragment.setRetainInstance(true);
         return fragment;
     }
@@ -147,4 +146,15 @@ public class TaskDialogFragment extends DialogFragment {
             });
         }
     }
+
+    @Override
+    public void onDestroyView() {
+        Dialog dialog = getDialog();
+        // Stop the dialog from being dismissed on rotation, due to a bug with the compatibility library
+        // https://code.google.com/p/android/issues/detail?id=17423
+        if (dialog != null && getRetainInstance()) {
+            dialog.setDismissMessage(null);
+        }
+        super.onDestroyView();
+    }
 }

DoNExt/app/src/main/java/com/wismna/geoffroy/donext/fragments/TasksFragment.java

@@ -1,5 +1,6 @@
 package com.wismna.geoffroy.donext.fragments;
 
+import android.annotation.SuppressLint;
 import android.app.Dialog;
 import android.content.Context;
 import android.content.SharedPreferences;
@@ -68,6 +69,7 @@ public class TasksFragment extends Fragment implements
         args.putLong(TASK_LIST_ID, taskListId);
         fragment.setArguments(args);
         fragment.mAdapter = taskChangedAdapter;
+        fragment.setRetainInstance(true);
         return fragment;
     }
 
@@ -80,6 +82,7 @@ public class TasksFragment extends Fragment implements
         }
     }
 
+    @SuppressLint("NewApi")
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
                              Bundle savedInstanceState) {
@@ -221,7 +224,8 @@ public class TasksFragment extends Fragment implements
                     recyclerView.scrollToPosition(0);
                 }
             });
-        snackbar.setCallback(new Snackbar.Callback() {
+        snackbar.addCallback(new Snackbar.Callback() {
+            @SuppressLint("NewApi")
             @Override
             public void onDismissed(Snackbar snackbar, int event) {
                 super.onDismissed(snackbar, event);
@@ -284,6 +288,7 @@ public class TasksFragment extends Fragment implements
         }
     }
 
+    @SuppressLint("NewApi")
     @Override
     public void onNewTaskDialogPositiveClick(DialogFragment dialog) {
         // Get the dialog fragment

DoNExt/app/src/main/res/layout-large/activity_main.xml

@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="utf-8"?>
+<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/main_content"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:fitsSystemWindows="true"
+    tools:context=".activities.MainActivity">
+
+    <android.support.design.widget.AppBarLayout
+        android:id="@+id/appbar"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:paddingTop="@dimen/appbar_padding_top"
+        android:theme="@style/AppTheme.AppBarOverlay">
+        <android.support.v7.widget.Toolbar
+            android:id="@+id/toolbar"
+            android:layout_width="match_parent"
+            android:layout_height="?attr/actionBarSize"
+            android:background="?attr/colorPrimary"
+            app:layout_scrollFlags="enterAlways"
+            app:popupTheme="@style/AppTheme.PopupOverlay" />
+    </android.support.design.widget.AppBarLayout>
+
+    <android.support.design.widget.FloatingActionButton
+        android:id="@+id/fab"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="end|bottom"
+        android:layout_margin="@dimen/fab_margin"
+        android:onClick="onNewTaskClick"
+        android:src="@drawable/ic_add_white_24dp" />
+
+    <LinearLayout
+        android:layout_width="wrap_content"
+        android:layout_height="match_parent"
+        android:layout_marginTop="80dp"
+        android:orientation="horizontal">
+        <android.widget.ListView
+            android:id="@+id/tabs"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="0.2"/>
+        <com.wismna.geoffroy.donext.widgets.NonSwipeableViewPager
+            android:id="@+id/container"
+            android:layout_width="0dp"
+            android:layout_height="match_parent"
+            android:layout_weight="0.8"
+            app:layout_behavior="@string/appbar_scrolling_view_behavior" />
+    </LinearLayout>
+</android.support.design.widget.CoordinatorLayout>

DoNExt/app/src/main/res/layout/fragment_tasklist.xml

@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="wrap_content"
+    android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:orientation="horizontal" >
+    android:orientation="horizontal">
     <ImageView
         android:id="@+id/handle"
         android:layout_width="wrap_content"
@@ -19,8 +19,9 @@
         android:textAppearance="?android:attr/textAppearanceMedium"/>
     <EditText
         android:id="@+id/task_list_name"
-        android:layout_width="175dp"
+        android:layout_width="0dp"
         android:layout_height="?listPreferredItemHeight"
+        android:layout_weight="2"
         android:inputType="text"
         android:textAppearance="?android:attr/textAppearanceLarge"/>
     <Button

DoNExt/app/src/main/res/layout/fragment_tasklists.xml

@@ -20,8 +20,9 @@
         android:layout_marginStart="75dp">
         <EditText
             android:id="@+id/new_task_list_name"
-            android:layout_width="175dp"
+            android:layout_width="0dp"
             android:layout_height="wrap_content"
+            android:layout_weight="2"
             android:hint="@string/task_list_new_list_hint"/>
         <Button
             android:id="@+id/new_task_list_button"