- added layout animation to animate RecyclerView items smoothly in

README.md

@@ -8,11 +8,12 @@ This library tries to mimic the activity chooser version you can see on Android
 
 ## Download (from JCenter)
 ```groovy
-compile 'com.github.zawadz88:material-activity-chooser:0.1.1'
+compile 'com.github.zawadz88:material-activity-chooser:0.2.0'
 ```
 
 ## Supported features
   - showing the activity chooser as a bottom sheet dialog on all OS versions starting from Jelly Bean (API 16)+
+  - a smooth animation when the items appear in the bottom sheet
   - setting custom bottom sheet titles
   - setting different intents per activity, e.g. to have different messages for different applications when sharing
   - use custom styles for the bottom sheet
@@ -152,7 +153,16 @@ You can inflate an entirely custom empty view as well, e.g.
 
 ## Styling the dialog to your own needs
 You can override the default styling of the Activity Chooser to your own needs.
-The easiest way is to override the 
+The easiest way is to override the ```MACTheme``` and replace the styles in the custom attributes. For more info see the sample app.
+
+## Disabling the item animation
+By default there is a layout animation on the RecyclerView which animates the items as they show up.
+It can be however disabled by extending the ```MACTheme``` and overriding ```mac_bottomSheetRecyclerViewStyle``` with a style with this animation disabled, e.g.
+```java
+    <style name="NoAnimationRecyclerViewStyle" parent="MACBottomSheetRecyclerView">
+        <item name="android:layoutAnimation">@null</item>
+    </style>
+```
 
 ## Tracking when an activity was clicked
 You might want to track/log when an activity has been selected to handle your intent. To do so you can extend the default MaterialActivityChooserActivity.

gradle.properties

@@ -18,4 +18,4 @@ org.gradle.jvmargs=-Xmx1536m
 
 POM_GROUP_ID=com.github.zawadz88
 POM_ARTIFACT_ID=material-activity-chooser
-POM_VERSION=0.1.1
+POM_VERSION=0.2.0

material-activity-chooser/src/main/java/com/github/zawadz88/activitychooser/widget/GridRecyclerView.java

@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2014 Freddie (Musenkishi) Lust-Hed
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.github.zawadz88.activitychooser.widget;
+
+import android.content.Context;
+import android.support.annotation.NonNull;
+import android.support.v7.widget.GridLayoutManager;
+import android.support.v7.widget.RecyclerView;
+import android.util.AttributeSet;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.animation.GridLayoutAnimationController;
+
+/**
+ * An extension of RecyclerView, focused more on resembling a GridView.
+ * Unlike {@link android.support.v7.widget.RecyclerView}, this view can handle
+ * {@code <gridLayoutAnimation>} as long as you provide it a
+ * {@link android.support.v7.widget.GridLayoutManager} in
+ * {@code setLayoutManager(LayoutManager layout)}.<br>
+ *
+ * Created by Freddie (Musenkishi) Lust-Hed.<br>
+ *
+ * animationParams.column and animationParams.row values were corrected.<br>
+ *
+ * Source: <a href="https://github.com/antoniolg/MaterializeYourApp/blob/master/app/src/main/java/com/antonioleiva/materializeyourapp/widgets/GridRecyclerView.java">GitHub</a>
+ */
+public class GridRecyclerView extends RecyclerView {
+
+    public GridRecyclerView(Context context) {
+        super(context);
+    }
+
+    public GridRecyclerView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public GridRecyclerView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+    }
+
+    @Override
+    public void setLayoutManager(LayoutManager layout) {
+        if (layout instanceof GridLayoutManager) {
+            super.setLayoutManager(layout);
+        } else {
+            throw new ClassCastException("You should only use a GridLayoutManager with GridRecyclerView.");
+        }
+    }
+
+    @Override
+    protected void attachLayoutAnimationParameters(View child, @NonNull ViewGroup.LayoutParams params, int index, int count) {
+
+        if (getAdapter() != null && getLayoutManager() instanceof GridLayoutManager) {
+
+            GridLayoutAnimationController.AnimationParameters animationParams =
+                    (GridLayoutAnimationController.AnimationParameters) params.layoutAnimationParameters;
+
+            if (animationParams == null) {
+                animationParams = new GridLayoutAnimationController.AnimationParameters();
+                params.layoutAnimationParameters = animationParams;
+            }
+
+            int columns = ((GridLayoutManager) getLayoutManager()).getSpanCount();
+
+
+            animationParams.count = count;
+            animationParams.index = index;
+            animationParams.columnsCount = columns;
+            animationParams.rowsCount = count / columns + 1;
+
+            animationParams.column = index % columns;
+            animationParams.row = index % columns + index / columns;
+
+        } else {
+            super.attachLayoutAnimationParameters(child, params, index, count);
+        }
+    }
+}

material-activity-chooser/src/main/res-public/values/public.xml

@@ -3,6 +3,7 @@
     <!-- Attributes -->
     <public type="attr" name="mac_bottomSheetStyle" />
     <public type="attr" name="mac_bottomSheetTitleStyle" />
+    <public type="attr" name="mac_bottomSheetRecyclerViewStyle" />
     <public type="attr" name="mac_emptyViewStyle" />
     <public type="attr" name="mac_emptyViewTitleStyle" />
     <public type="attr" name="mac_emptyViewButtonStyle" />

material-activity-chooser/src/main/res/anim/mac_grid_layout_animation.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<gridLayoutAnimation xmlns:android="http://schemas.android.com/apk/res/android"
+    android:animation="@anim/mac_slide_up_with_fade_in"
+    android:animationOrder="normal"
+    android:columnDelay="10%"
+    android:direction="top_to_bottom|left_to_right"
+    android:rowDelay="5%" />

material-activity-chooser/src/main/res/anim/mac_slide_up_with_fade_in.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android"
+    android:duration="@android:integer/config_mediumAnimTime"
+    android:interpolator="@android:anim/decelerate_interpolator">
+
+    <translate
+        android:fromYDelta="100%"
+        android:toYDelta="0" />
+
+    <alpha
+        android:fromAlpha="0"
+        android:toAlpha="1" />
+
+</set>

material-activity-chooser/src/main/res/layout/activity_material_activity_chooser.xml

@@ -25,35 +25,34 @@
             style="?attr/mac_bottomSheetTitleStyle"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:clickable="true"/>
+            android:clickable="true" />
 
-        <android.support.v7.widget.RecyclerView
+        <com.github.zawadz88.activitychooser.widget.GridRecyclerView
             android:id="@+id/mac_recycler_view"
+            style="?attr/mac_bottomSheetRecyclerViewStyle"
             android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:clipToPadding="false"
-            android:paddingBottom="@dimen/mac_recycler_view_padding_bottom" />
+            android:layout_height="wrap_content" />
 
         <LinearLayout
             android:id="@+id/mac_empty_view"
             style="?attr/mac_emptyViewStyle"
-            android:visibility="gone"
-            android:clickable="true">
+            android:clickable="true"
+            android:visibility="gone">
 
             <TextView
                 android:id="@+id/mac_empty_view_title"
+                style="?attr/mac_emptyViewTitleStyle"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-                android:text="@string/mac_default_no_activities_found_message"
-                style="?attr/mac_emptyViewTitleStyle" />
+                android:text="@string/mac_default_no_activities_found_message" />
 
             <Button
                 android:id="@+id/mac_empty_view_button"
+                style="?attr/mac_emptyViewButtonStyle"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:text="@string/mac_default_empty_view_button_message"
-                style="?attr/mac_emptyViewButtonStyle"
-                android:visibility="gone"/>
+                android:visibility="gone" />
 
             <ViewStub
                 android:id="@+id/mac_empty_view_custom_view_stub"

material-activity-chooser/src/main/res/values/attrs.xml

@@ -3,6 +3,7 @@
 
     <attr name="mac_bottomSheetStyle" format="reference" />
     <attr name="mac_bottomSheetTitleStyle" format="reference" />
+    <attr name="mac_bottomSheetRecyclerViewStyle" format="reference" />
     <attr name="mac_emptyViewStyle" format="reference" />
     <attr name="mac_emptyViewTitleStyle" format="reference" />
     <attr name="mac_emptyViewButtonStyle" format="reference" />

material-activity-chooser/src/main/res/values/default_styles.xml

@@ -30,6 +30,12 @@
         <item name="android:background">@drawable/mac_title_background_selector</item>
     </style>
 
+    <style name="MACBottomSheetRecyclerView">
+        <item name="android:clipToPadding">false</item>
+        <item name="android:layoutAnimation">@anim/mac_grid_layout_animation</item>
+        <item name="android:paddingBottom">@dimen/mac_recycler_view_padding_bottom</item>
+    </style>
+
     <style name="MACActivityItem">
         <item name="android:paddingLeft">@dimen/mac_activity_item_lateral_padding</item>
         <item name="android:paddingRight">@dimen/mac_activity_item_lateral_padding</item>

material-activity-chooser/src/main/res/values/default_themes.xml

@@ -10,6 +10,7 @@
 
         <item name="mac_bottomSheetStyle">@style/MACBottomSheet</item>
         <item name="mac_bottomSheetTitleStyle">@style/MACBottomSheetTitle</item>
+        <item name="mac_bottomSheetRecyclerViewStyle">@style/MACBottomSheetRecyclerView</item>
 
         <item name="mac_emptyViewStyle">@style/MACEmptyView</item>
         <item name="mac_emptyViewTitleStyle">@style/MACEmptyViewTitle</item>

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

@@ -6,7 +6,7 @@
     <string name="share_text_with_title">Share text with title</string>
     <string name="share_text_with_title_from_resource">Share text with title from resource</string>
     <string name="share_text_with_secondary_intents">Share text with secondary intents</string>
-    <string name="share_text_styled">Share text with custom styled activity</string>
+    <string name="share_text_styled">Share text with custom style without item animation</string>
     <string name="show_empty_default">Show default empty view</string>
     <string name="show_empty_custom_text_from_resource">Show empty view with custom text from resource</string>
     <string name="show_empty_custom_text">Show empty view with custom text</string>

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

@@ -12,6 +12,7 @@
         <item name="mac_bottomSheetTitleStyle">@style/CustomBottomSheetTitle</item>
         <item name="mac_activityItemLabelStyle">@style/CustomActivityItemLabel</item>
         <item name="mac_activityItemSpanCount">2</item>
+        <item name="mac_bottomSheetRecyclerViewStyle">@style/NoAnimationRecyclerViewStyle</item>
     </style>
 
     <style name="CustomBottomSheet" parent="MACBottomSheet">
@@ -24,6 +25,10 @@
         <item name="android:background">@android:color/black</item>
     </style>
 
+    <style name="NoAnimationRecyclerViewStyle" parent="MACBottomSheetRecyclerView">
+        <item name="android:layoutAnimation">@null</item>
+    </style>
+
     <style name="CustomActivityItemLabel" parent="MACActivityItemLabel">
         <item name="android:textColor">@android:color/white</item>
     </style>