Allow download notifications to be dismissed. Group active download notifications.

p4a/pythonforandroid/bootstraps/lbry/build/templates/AndroidManifest.tmpl.xml

@@ -93,6 +93,8 @@
             {%- endif -%}
         </activity>
         
+        <receiver android:name="io.lbry.browser.receivers.NotificationDeletedReceiver" />
+        
         {% if args.launcher %}
         <activity android:name="org.kivy.android.launcher.ProjectChooser"
                   android:icon="@drawable/icon"

src/main/java/io/lbry/browser/MainActivity.java

@@ -6,8 +6,9 @@ import android.app.Activity;
 import android.app.ActivityManager;
 import android.support.v4.app.ActivityCompat;
 import android.support.v4.content.ContextCompat;
-import android.content.Intent;
 import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
 import android.content.pm.PackageManager;
 import android.content.SharedPreferences;
 import android.Manifest;
@@ -23,6 +24,7 @@ import com.facebook.react.ReactInstanceManager;
 import com.facebook.react.shell.MainReactPackage;
 
 import io.lbry.browser.reactpackages.LbryReactPackage;
+import io.lbry.browser.reactmodules.DownloadManagerModule;
 
 public class MainActivity extends Activity implements DefaultHardwareBackBtnHandler {
     

src/main/java/io/lbry/browser/reactmodules/DownloadManagerModule.java

@@ -1,6 +1,9 @@
 package io.lbry.browser.reactmodules;
 
+import android.app.PendingIntent;
+import android.content.BroadcastReceiver;
 import android.content.Context;
+import android.content.Intent;
 import android.support.v4.app.NotificationCompat;
 import android.support.v4.app.NotificationManagerCompat;
 
@@ -9,15 +12,12 @@ import com.facebook.react.bridge.ReactContextBaseJavaModule;
 import com.facebook.react.bridge.ReactMethod;
 
 import io.lbry.browser.R;
+import io.lbry.browser.receivers.NotificationDeletedReceiver;
 
 import java.text.DecimalFormat;
 import java.util.HashMap;
 import java.util.Random;
 
-/**
- * Created by akinwale on 3/15/18.
- */
-
 public class DownloadManagerModule extends ReactContextBaseJavaModule {
     private Context context;
 
@@ -25,9 +25,17 @@ public class DownloadManagerModule extends ReactContextBaseJavaModule {
 
     private HashMap<String, Integer> downloadIdNotificationIdMap = new HashMap<String, Integer>();
 
+    private static final DecimalFormat DECIMAL_FORMAT = new DecimalFormat("#.##");    
+    
     private static final int MAX_PROGRESS = 100;
 
-    private static final DecimalFormat DECIMAL_FORMAT = new DecimalFormat("#.##");
+    private static final String GROUP_DOWNLOADS = "io.lbry.browser.GROUP_DOWNLOADS";
+    
+    public static final String NOTIFICATION_ID_KEY = "io.lbry.browser.notificationId";
+    
+    public static final int GROUP_ID = 0;
+    
+    public static boolean groupCreated = false;
     
     public DownloadManagerModule(ReactApplicationContext reactContext) {
         super(reactContext);
@@ -43,13 +51,37 @@ public class DownloadManagerModule extends ReactContextBaseJavaModule {
         return "LbryDownloadManager";
     }
     
+    private void createNotificationGroup() {
+        if (!groupCreated) {
+            Intent intent = new Intent(context, NotificationDeletedReceiver.class);
+            intent.putExtra(NOTIFICATION_ID_KEY, GROUP_ID);
+            
+            PendingIntent pendingIntent = PendingIntent.getBroadcast(context, GROUP_ID, intent, 0);
+            NotificationManagerCompat notificationManager = NotificationManagerCompat.from(context);
+            NotificationCompat.Builder builder = new NotificationCompat.Builder(context);
+            builder.setContentTitle("Active downloads")
+                   .setContentText("Active downloads")
+                   .setSmallIcon(R.drawable.ic_file_download_black_24dp)
+                   .setPriority(NotificationCompat.PRIORITY_LOW)
+                   .setGroup(GROUP_DOWNLOADS)
+                   .setGroupSummary(true)
+                   .setDeleteIntent(pendingIntent);
+            notificationManager.notify(GROUP_ID, builder.build());
+        
+            groupCreated = true;
+        }
+    }
+
     @ReactMethod
     public void startDownload(String id, String fileName) {
+        createNotificationGroup();
+        
         NotificationManagerCompat notificationManager = NotificationManagerCompat.from(context);
         NotificationCompat.Builder builder = new NotificationCompat.Builder(context);
         builder.setContentTitle(String.format("Downloading %s...", fileName))
                .setSmallIcon(R.drawable.ic_file_download_black_24dp)
-                .setPriority(NotificationCompat.PRIORITY_LOW);
+               .setPriority(NotificationCompat.PRIORITY_LOW)
+               .setGroup(GROUP_DOWNLOADS);
 
         builder.setProgress(MAX_PROGRESS, 0, false);
 
@@ -71,16 +103,16 @@ public class DownloadManagerModule extends ReactContextBaseJavaModule {
             return;
         }
 
+        createNotificationGroup();
         NotificationManagerCompat notificationManager = NotificationManagerCompat.from(context);
         NotificationCompat.Builder builder = builders.get(notificationId);
         builder.setProgress(MAX_PROGRESS, new Double(progress).intValue(), false);
         builder.setContentText(String.format("%.0f%% (%s / %s)", progress, formatBytes(writtenBytes), formatBytes(totalBytes)));
-        builder.setOngoing(true);
+        builder.setGroup(GROUP_DOWNLOADS);
         notificationManager.notify(notificationId, builder.build());
 
         if (progress == MAX_PROGRESS) {
             builder.setContentTitle(String.format("Downloaded %s.", fileName));
-            builder.setOngoing(false);
             downloadIdNotificationIdMap.remove(id);
             builders.remove(notificationId);
         }
@@ -99,11 +131,15 @@ public class DownloadManagerModule extends ReactContextBaseJavaModule {
         
         NotificationManagerCompat notificationManager = NotificationManagerCompat.from(context);
         NotificationCompat.Builder builder = builders.get(notificationId);
-        builder.setOngoing(false);
         notificationManager.cancel(notificationId);
         
         downloadIdNotificationIdMap.remove(id);
         builders.remove(notificationId);
+        
+        if (builders.values().size() == 0) {
+            notificationManager.cancel(GROUP_ID);
+            groupCreated = false;
+        }
     }
 
     private String formatBytes(double bytes)

src/main/java/io/lbry/browser/receivers/NotificationDeletedReceiver.java

@@ -0,0 +1,17 @@
+package io.lbry.browser.receivers;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+
+import io.lbry.browser.reactmodules.DownloadManagerModule;
+
+public class NotificationDeletedReceiver extends BroadcastReceiver {
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        int notificationId = intent.getExtras().getInt(DownloadManagerModule.NOTIFICATION_ID_KEY);
+        if (DownloadManagerModule.GROUP_ID == notificationId) {
+            DownloadManagerModule.groupCreated = false;
+        }
+    }
+}