From 6bd4b41f8c7eeb112d00bc42658eace8ed3bcb85 Mon Sep 17 00:00:00 2001
From: Alex Ning <chineseperson5@gmail.com>
Date: Tue, 23 Apr 2019 08:03:29 +0800
Subject: Hide Toolbar when scrolling content up.

---
 app/src/main/res/layout/activity_main.xml          | 129 ++++++++++-----------
 .../res/layout/activity_view_subreddit_detail.xml  |   3 +-
 .../main/res/layout/activity_view_user_detail.xml  |   3 +-
 app/src/main/res/layout/app_bar_main.xml           |  55 +++++----
 app/src/main/res/layout/fragment_post.xml          |   8 --
 5 files changed, 97 insertions(+), 101 deletions(-)

(limited to 'app/src/main/res')

diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 13eec540..12eff6dc 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <androidx.drawerlayout.widget.DrawerLayout 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/drawer_layout"
     android:layout_width="match_parent"
@@ -13,86 +12,86 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent" />
 
-        <com.google.android.material.navigation.NavigationView
-            android:id="@+id/nav_view"
-            android:layout_width="wrap_content"
+    <com.google.android.material.navigation.NavigationView
+        android:id="@+id/nav_view"
+        android:layout_width="wrap_content"
+        android:layout_height="match_parent"
+        android:layout_gravity="start">
+
+        <androidx.core.widget.NestedScrollView
+            android:layout_width="match_parent"
             android:layout_height="match_parent"
-            android:layout_gravity="start">
+            android:scrollbars="vertical">
 
-            <androidx.core.widget.NestedScrollView
+            <LinearLayout
                 android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                android:scrollbars="vertical">
+                android:layout_height="wrap_content"
+                android:orientation="vertical">
+
+                <include
+                    android:id="@+id/nav_header_main_activity"
+                    layout="@layout/nav_header_main" />
 
                 <LinearLayout
+                    android:id="@+id/profile_linear_layout_main_activity"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
-                    android:orientation="vertical">
-
-                    <include
-                        android:id="@+id/nav_header_main_activity"
-                        layout="@layout/nav_header_main" />
-
-                    <LinearLayout
-                        android:id="@+id/profile_linear_layout_main_activity"
-                        android:layout_width="match_parent"
-                        android:layout_height="wrap_content"
-                        android:padding="16dp"
-                        android:clickable="true"
-                        android:focusable="true"
-                        android:background="?attr/selectableItemBackground">
-
-                        <ImageView
-                            android:layout_width="24dp"
-                            android:layout_height="24dp"
-                            android:layout_marginEnd="32dp"
-                            android:layout_gravity="center_vertical"
-                            android:src="@drawable/ic_outline_account_circle_24px"/>
-
-                        <TextView
-                            android:layout_width="wrap_content"
-                            android:layout_height="wrap_content"
-                            android:text="@string/profile"
-                            android:textColor="@android:color/black"
-                            android:layout_gravity="center_vertical"/>
-
-                    </LinearLayout>
-
-                    <View
-                        android:layout_width="match_parent"
-                        android:layout_height="1dp"
-                        android:background="#E0E0E0"/>
+                    android:background="?attr/selectableItemBackground"
+                    android:clickable="true"
+                    android:focusable="true"
+                    android:padding="16dp">
+
+                    <ImageView
+                        android:layout_width="24dp"
+                        android:layout_height="24dp"
+                        android:layout_gravity="center_vertical"
+                        android:layout_marginEnd="32dp"
+                        android:src="@drawable/ic_outline_account_circle_24px" />
 
                     <TextView
-                        android:id="@+id/following_label_main_activity"
                         android:layout_width="wrap_content"
                         android:layout_height="wrap_content"
-                        android:text="@string/following"
-                        android:layout_margin="16dp"
-                        android:visibility="gone"/>
+                        android:layout_gravity="center_vertical"
+                        android:text="@string/profile"
+                        android:textColor="@android:color/black" />
 
-                    <androidx.recyclerview.widget.RecyclerView
-                        android:id="@+id/subscribed_user_recycler_view_main_activity"
-                        android:layout_width="match_parent"
-                        android:layout_height="wrap_content" />
+                </LinearLayout>
 
-                    <TextView
-                        android:id="@+id/subscriptions_label_main_activity"
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="@string/subscriptions"
-                        android:layout_margin="16dp"
-                        android:visibility="gone"/>
+                <View
+                    android:layout_width="match_parent"
+                    android:layout_height="1dp"
+                    android:background="#E0E0E0" />
 
-                    <androidx.recyclerview.widget.RecyclerView
-                        android:id="@+id/subscribed_subreddit_recycler_view_main_activity"
-                        android:layout_width="match_parent"
-                        android:layout_height="wrap_content" />
+                <TextView
+                    android:id="@+id/following_label_main_activity"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_margin="16dp"
+                    android:text="@string/following"
+                    android:visibility="gone" />
 
-                </LinearLayout>
+                <androidx.recyclerview.widget.RecyclerView
+                    android:id="@+id/subscribed_user_recycler_view_main_activity"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content" />
+
+                <TextView
+                    android:id="@+id/subscriptions_label_main_activity"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_margin="16dp"
+                    android:text="@string/subscriptions"
+                    android:visibility="gone" />
+
+                <androidx.recyclerview.widget.RecyclerView
+                    android:id="@+id/subscribed_subreddit_recycler_view_main_activity"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content" />
+
+            </LinearLayout>
 
-            </androidx.core.widget.NestedScrollView>
+        </androidx.core.widget.NestedScrollView>
 
-        </com.google.android.material.navigation.NavigationView>
+    </com.google.android.material.navigation.NavigationView>
 
 </androidx.drawerlayout.widget.DrawerLayout>
diff --git a/app/src/main/res/layout/activity_view_subreddit_detail.xml b/app/src/main/res/layout/activity_view_subreddit_detail.xml
index 5d83b5fa..5fff46ca 100644
--- a/app/src/main/res/layout/activity_view_subreddit_detail.xml
+++ b/app/src/main/res/layout/activity_view_subreddit_detail.xml
@@ -8,15 +8,14 @@
     tools:context=".ViewSubredditDetailActivity">
 
     <com.google.android.material.appbar.AppBarLayout
-        android:id="@+id/app_bar_layout_view_subreddit_detail_activity"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:theme="@style/AppTheme.AppBarOverlay">
 
         <com.google.android.material.appbar.CollapsingToolbarLayout
-            android:id="@+id/collapsing_toolbar_layout_view_subreddit_detail_activity"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
+            app:titleEnabled="false"
             app:contentScrim="?attr/colorPrimary"
             app:layout_scrollFlags="scroll|enterAlways|enterAlwaysCollapsed"
             app:toolbarId="@+id/toolbar">
diff --git a/app/src/main/res/layout/activity_view_user_detail.xml b/app/src/main/res/layout/activity_view_user_detail.xml
index ca8625d3..9bd70a72 100644
--- a/app/src/main/res/layout/activity_view_user_detail.xml
+++ b/app/src/main/res/layout/activity_view_user_detail.xml
@@ -8,15 +8,14 @@
     tools:context=".ViewUserDetailActivity">
 
     <com.google.android.material.appbar.AppBarLayout
-        android:id="@+id/app_bar_layout_view_user_detail_activity"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:theme="@style/AppTheme.AppBarOverlay">
 
         <com.google.android.material.appbar.CollapsingToolbarLayout
-            android:id="@+id/collapsing_toolbar_layout_view_user_detail_activity"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
+            app:titleEnabled="false"
             app:contentScrim="?attr/colorPrimary"
             app:layout_scrollFlags="scroll|enterAlways|enterAlwaysCollapsed"
             app:toolbarId="@+id/toolbar">
diff --git a/app/src/main/res/layout/app_bar_main.xml b/app/src/main/res/layout/app_bar_main.xml
index 94727b02..cfd4637b 100644
--- a/app/src/main/res/layout/app_bar_main.xml
+++ b/app/src/main/res/layout/app_bar_main.xml
@@ -11,33 +11,40 @@
         android:layout_height="wrap_content"
         android:theme="@style/AppTheme.AppBarOverlay">
 
-        <FrameLayout
-            android:id="@+id/toolbar_frame_layout_main_activity"
+        <com.google.android.material.appbar.CollapsingToolbarLayout
             android:layout_width="match_parent"
-            android:layout_height="wrap_content">
+            android:layout_height="match_parent"
+            app:titleEnabled="false"
+            app:layout_scrollFlags="scroll|enterAlways"
+            app:toolbarId="@+id/toolbar">
 
-            <androidx.appcompat.widget.Toolbar
-                android:id="@+id/toolbar"
+            <FrameLayout
+                android:id="@+id/toolbar_frame_layout_main_activity"
                 android:layout_width="match_parent"
-                android:layout_height="?attr/actionBarSize"
-                android:background="?attr/colorPrimary"
-                app:popupTheme="@style/AppTheme.PopupOverlay" />
-
-            <com.ferfalk.simplesearchview.SimpleSearchView
-                android:id="@+id/search_view_main_activity"
-                android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                android:textColor="@android:color/white"
-                app:voiceSearch="true"
-                app:searchBackground="@color/colorPrimary"
-                app:cursorColor="@android:color/white"
-                app:hintColor="#E0E0E0"
-                app:iconsTint="@android:color/white"
-                app:backIconTint="@android:color/white"
-                app:iconsAlpha="1"
-                app:backIconAlpha="1"/>
-
-        </FrameLayout>
+                android:layout_height="wrap_content">
+
+                <androidx.appcompat.widget.Toolbar
+                    android:id="@+id/toolbar"
+                    android:layout_width="match_parent"
+                    android:layout_height="?attr/actionBarSize"/>
+
+                <com.ferfalk.simplesearchview.SimpleSearchView
+                    android:id="@+id/search_view_main_activity"
+                    android:layout_width="match_parent"
+                    android:layout_height="match_parent"
+                    android:textColor="@android:color/white"
+                    app:voiceSearch="true"
+                    app:searchBackground="@color/colorPrimary"
+                    app:cursorColor="@android:color/white"
+                    app:hintColor="#E0E0E0"
+                    app:iconsTint="@android:color/white"
+                    app:backIconTint="@android:color/white"
+                    app:iconsAlpha="1"
+                    app:backIconAlpha="1"/>
+
+            </FrameLayout>
+
+        </com.google.android.material.appbar.CollapsingToolbarLayout>
 
     </com.google.android.material.appbar.AppBarLayout>
 
diff --git a/app/src/main/res/layout/fragment_post.xml b/app/src/main/res/layout/fragment_post.xml
index 3b073f08..ad9e23d7 100644
--- a/app/src/main/res/layout/fragment_post.xml
+++ b/app/src/main/res/layout/fragment_post.xml
@@ -43,12 +43,4 @@
 
     </LinearLayout>
 
-    <!--<android.support.design.widget.FloatingActionButton
-        android:id="@+id/fab_post_fragment"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="bottom|end"
-        android:layout_margin="@dimen/fab_margin"
-        app:srcCompat="@drawable/baseline_add_white_24" />-->
-
 </androidx.coordinatorlayout.widget.CoordinatorLayout>
-- 
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