Add support for push notifications on class seat openings

AndroidManifest.xml

@@ -14,6 +14,12 @@
     <!-- Required by Google Analytics and Mixpanel -->
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 
+    <!-- Required for push notifications from GCM: http://developer.android.com/google/gcm/client.html -->
+    <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
+    <uses-permission android:name="android.permission.GET_ACCOUNTS" />
+    <permission android:name="com.uwflow.flow_android.permission.C2D_MESSAGE" android:protectionLevel="signature" />
+    <uses-permission android:name="com.uwflow.flow_android.permission.C2D_MESSAGE" />
+
     <application
             android:name=".FlowApplication"
             android:label="@string/app_name"
@@ -47,8 +53,17 @@
         </activity>
         <activity android:name="com.facebook.LoginActivity"
                   android:screenOrientation="portrait"/>
+        <receiver android:name=".broadcast_receiver.GcmBroadcastReceiver"
+                  android:permission="com.google.android.c2dm.permission.SEND">
+            <intent-filter>
+                <action android:name="com.google.android.c2dm.intent.RECEIVE" />
+                <category android:name="com.uwflow.flow_android" />
+            </intent-filter>
+        </receiver>
         <meta-data android:name="com.facebook.sdk.ApplicationId" android:value="@string/fb_app_id"/>
         <meta-data android:name="com.crashlytics.ApiKey" android:value="0cced89c07497c684c2bd8361b9395d97483cad0"/>
+        <meta-data android:name="com.google.android.gms.version"
+                   android:value="@integer/google_play_services_version" />
     </application>
     <uses-permission android:name="com.android.alarm.permission.SET_ALARM"/>
     <uses-permission android:name="android.permission.WRITE_CALENDAR" />

README.md

@@ -15,6 +15,7 @@ The following instructions are tested for Intellij on Mac OS X and Windows:
 
 1. Ensure you have
    [the latest Android SDKs and build tools installed](https://developer.android.com/sdk/index.html).
+1. Install the [Google Play Services SDK](http://developer.android.com/google/play-services/setup.html#Install).
 1. Create a file in the project root directory called `local.properties` and add the line `sdk.dir=/path/to/your/sdk`.
 1. Download [Gradle](http://www.gradle.org/downloads) (tested with version 1.10).
 1. Open Intellij (or Android Studio). Ensure you have the Gradle Intellij plugin.

build.gradle

@@ -42,6 +42,7 @@ dependencies {
     compile 'com.nostra13.universalimageloader:universal-image-loader:1.9.1'
     compile "com.mixpanel.android:mixpanel-android:4.0.0@aar"
     compile 'com.crashlytics.android:crashlytics:1.+'
+    compile 'com.google.android.gms:play-services:4.0.30'
 }
 
 android {

proguard-project.txt

@@ -42,3 +42,22 @@
 
 # We're open-sourced anyway... let's make life easier :)
 -dontobfuscate
+
+# Don't strip away required classes from Google Play Services SDK.
+# From http://developer.android.com/google/play-services/setup.html
+-keep class * extends java.util.ListResourceBundle {
+    protected Object[][] getContents();
+}
+
+-keep public class com.google.android.gms.common.internal.safeparcel.SafeParcelable {
+    public static final *** NULL;
+}
+
+-keepnames @com.google.android.gms.common.annotation.KeepName class *
+-keepclassmembernames class * {
+    @com.google.android.gms.common.annotation.KeepName *;
+}
+
+-keepnames class * implements android.os.Parcelable {
+    public static final ** CREATOR;
+}

res/layout/course_class_row_item.xml

@@ -1,6 +1,46 @@
 <?xml version="1.0" encoding="utf-8"?>
 <TableRow xmlns:android="http://schemas.android.com/apk/res/android"
-          android:layout_width="match_parent" android:layout_height="wrap_content">
-    <TextView android:id="@+id/col1" android:layout_gravity="fill" android:layout_weight="1" android:paddingLeft="10dp"/>
-    <TextView android:id="@+id/col2" android:layout_gravity="fill" android:layout_weight="1" />
+          android:layout_width="match_parent"
+          android:layout_height="wrap_content"
+          android:paddingTop="3dp"
+          android:paddingBottom="3dp"
+          android:paddingLeft="10dp"
+          android:paddingRight="10dp">
+    <TextView
+            android:id="@+id/col1"
+            android:gravity="center|left"
+            android:text="LEC\n001"
+            android:layout_width="50dp"
+            android:layout_height="fill_parent"
+            android:textSize="18dp"/>
+    <TextView
+            android:id="@+id/col2"
+            android:text="7:00PM - 8:50PM\nMTWThFSSu\nMC 4059 - UW U\nByron Weber Becker"
+            android:layout_gravity="center_vertical"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1" />
+    <LinearLayout
+            android:layout_gravity="center_vertical|right"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+        <TextView
+                android:id="@+id/seats_available_textview"
+                android:layout_gravity="center"
+                android:layout_height="wrap_content"
+                android:layout_width="wrap_content"
+                android:gravity="center|right"
+                android:text="0/0\nseats"
+                android:layout_weight="1" />
+        <ImageButton android:id="@+id/add_alert_button"
+                     style="@style/Flow.StyledButton"
+                     android:padding="5dp"
+                     android:layout_gravity="center_vertical"
+                     android:layout_width="wrap_content"
+                     android:layout_height="wrap_content"
+                     android:background="@drawable/blue_button"
+                     android:layout_marginLeft="10dp"
+                     android:src="@drawable/ic_add_alert" />
+    </LinearLayout>
 </TableRow>

res/layout/course_schedule.xml

@@ -24,26 +24,6 @@
                          android:layout_weight="1"
                          android:layout_width="match_parent"
                          android:layout_height="0dp" >
-                <!-- 3 columns -->
-                <TableRow
-                        android:layout_width="match_parent"
-                        android:layout_height="wrap_content"
-                        android:background="@color/flow_blue">
-                    <TextView android:text="Class Info"
-                              android:textStyle="bold"
-                              android:layout_weight="1"
-                              android:textColor="@color/white"
-                              android:paddingLeft="10dp"/>
-                    <TextView android:text="Time and Location"
-                              android:textStyle="bold"
-                              android:layout_weight="1"
-                              android:textColor="@color/white"/>
-                    <!--<TextView android:text=" " android:textStyle="bold"/>-->
-                </TableRow>
-
-                <!-- Header divider -->
-                <View android:layout_height="2dip" android:background="#ff5ba7ea" />
-
             </TableLayout>
         </ScrollView>
         <TextView android:text=""

res/layout/profile_schedule_layout.xml

@@ -84,7 +84,7 @@
               android:layout_height="match_parent"
               android:gravity="center"
               android:textColor="@color/grey_dark"
-              android:text="No schedule uploaded"
+              android:text="No class schedule available"
               android:textSize="18dp"
               android:visibility="gone"/>
 </LinearLayout>

src/com/uwflow/flow_android/MainFlowActivity.java

@@ -34,6 +34,8 @@
 import com.uwflow.flow_android.network.FlowAsyncClient;
 import com.uwflow.flow_android.nfc.SharableURL;
 import com.uwflow.flow_android.util.FacebookUtilities;
+import com.uwflow.flow_android.util.RegistrationIdUtil;
+import org.apache.commons.lang3.StringUtils;
 import org.json.JSONException;
 import org.json.JSONObject;
 
@@ -154,8 +156,12 @@ public void onDrawerOpened(View view) {
         mDrawerList.setOnItemClickListener(new DrawerItemClickListener());
 
         if (savedInstanceState == null) {
-            Fragment initialFragment;
-            if (isUserLoggedIn) {
+            Bundle bundle = getIntent().getExtras();
+            String courseId = (bundle == null ? null : bundle.getString(Constants.COURSE_ID_KEY));
+
+            if (StringUtils.isNotEmpty(courseId)) {
+                replaceWithFragment(CourseFragment.newInstance(courseId), false);
+            } else if (isUserLoggedIn) {
                 selectItem(Constants.NAV_DRAWER_PROFILE_INDEX, false);
             } else {
                 selectItem(Constants.NAV_DRAWER_EXPLORE_INDEX, false);
@@ -198,6 +204,8 @@ public NdefMessage createNdefMessage(NfcEvent event) {
             }, this);
         }
 
+        // Register this device with GCM to receive push notifications, if possible.
+        RegistrationIdUtil.init(getApplicationContext());
     }
 
     /**
@@ -339,20 +347,28 @@ private void selectItem(int itemID, boolean addToBackStack) {
                 return;
         }
 
+        replaceWithFragment(fragment, addToBackStack);
+        int selectedPosition = mNavDrawerAdapter.getPositionFromId(itemID);
+        if (selectedPosition >= 0) {
+            mDrawerList.setItemChecked(selectedPosition, true);
+        }
+        mDrawerLayout.closeDrawer(mDrawerContainer);
+    }
+
+    /**
+     * Adds the given fragment to the back stack and replaces the current one with it.
+     */
+    private void replaceWithFragment(Fragment fragment, boolean addToBackStack) {
         FragmentManager fragmentManager = getSupportFragmentManager();
         FragmentTransaction transaction = fragmentManager.beginTransaction()
                 .replace(R.id.content_frame, fragment);
         if (addToBackStack) {
             transaction.addToBackStack(null);
         }
         transaction.commit();
-        int selectedPosition = mNavDrawerAdapter.getPositionFromId(itemID);
-        if (selectedPosition >= 0) {
-            mDrawerList.setItemChecked(selectedPosition, true);
-        }
-        mDrawerLayout.closeDrawer(mDrawerContainer);
     }
 
+
     private void handleNfcIntent(Intent intent) {
         if (intent == null) return;