Notifications for upload without progress.

Author: Sam1301

app/src/main/java/com/zulip/android/activities/ZulipActivity.java

@@ -6,6 +6,8 @@
 import android.annotation.TargetApi;
 import android.app.AlertDialog;
 import android.app.DatePickerDialog;
+import android.app.NotificationManager;
+import android.app.PendingIntent;
 import android.app.SearchManager;
 import android.content.BroadcastReceiver;
 import android.content.ClipData;
@@ -44,6 +46,7 @@
 import android.support.v4.widget.DrawerLayout;
 import android.support.v4.widget.SimpleCursorAdapter;
 import android.support.v7.app.AppCompatDelegate;
+import android.support.v7.app.NotificationCompat;
 import android.support.v7.widget.LinearLayoutManager;
 import android.support.v7.widget.RecyclerView;
 import android.support.v7.widget.Toolbar;
@@ -557,6 +560,8 @@ public Cursor runQuery(CharSequence charSequence) {
         setupSnackBar();
         //Hides Keyboard if it was open with focus on an editText before restart of the activity
         this.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN);
+
+        mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
     }
 
     /**
@@ -1099,6 +1104,49 @@ private MultipartBody.Part prepareFilePart(String partName, File file) {
         return MultipartBody.Part.createFormData(partName, file.getName(), requestFile);
     }
 
+    NotificationManager mNotificationManager;
+
+    /**
+     * TODO: add description
+     *
+     * @param notificationId
+     * @param title
+     * @param content
+     */
+    private void setNotification(int notificationId, String title, String content) {
+        NotificationCompat.Builder builder =
+                (NotificationCompat.Builder) new NotificationCompat.Builder(this)
+                        .setSmallIcon(android.R.drawable.stat_sys_upload)
+                        .setContentTitle(title)
+                        .setContentText(content)
+                        .setColor(getColor(R.color.notif_background));
+        PendingIntent contentIntent = PendingIntent.getActivity(
+                getApplicationContext(),
+                0,
+                new Intent(),
+                PendingIntent.FLAG_UPDATE_CURRENT);
+        builder.setContentIntent(contentIntent);
+        mNotificationManager.notify(notificationId, builder.build());
+    }
+
+    private void endNotification(int notificationId, String title, String content) {
+        NotificationCompat.Builder builder =
+                (NotificationCompat.Builder) new NotificationCompat.Builder(this)
+                        .setSmallIcon(R.drawable.ic_done_white_24dp)
+                        .setContentTitle(title)
+                        .setContentText(content)
+                        .setAutoCancel(true)
+                        .setColor(getColor(R.color.notif_background));
+
+        PendingIntent contentIntent = PendingIntent.getActivity(
+                getApplicationContext(),
+                0,
+                new Intent(),
+                PendingIntent.FLAG_UPDATE_CURRENT);
+        builder.setContentIntent(contentIntent);
+        mNotificationManager.notify(notificationId, builder.build());
+    }
+
     /**
      * Function to upload file asynchronously to the server using retrofit callback
      * upload {@link com.zulip.android.service.ZulipServices#upload(MultipartBody.Part)}
@@ -1112,6 +1160,10 @@ private void uploadFile(final File file) {
 
         final String loadingMsg = getResources().getString(R.string.uploading_message);
 
+        // start notification
+        // TODO: handle different notif ids
+        setNotification(100, getString(R.string.notif_title), getString(R.string.init_notif_title));
+
         // finally, execute the request
         // create upload service client
         Call<UploadResponse> call = ((ZulipApp) getApplicationContext()).getZulipServices().upload(body);
@@ -1122,6 +1174,7 @@ public void onSuccess(Call<UploadResponse> call, Response<UploadResponse> respon
                 UploadResponse uploadResponse = response.body();
                 filePathOnServer = uploadResponse.getUri();
                 if (!filePathOnServer.equals("")) {
+                    endNotification(100, getString(R.string.notif_title), getString(R.string.finish_notif_title));
                     // remove loading message from the screen
                     sendingMessage(false, loadingMsg);
 
@@ -2354,6 +2407,10 @@ protected void onDestroy() {
             statusUpdateHandler.removeMessages(0);
             statusUpdateHandler.removeCallbacks(statusUpdateRunnable);
         }
+        if (mNotificationManager == null) {
+            mNotificationManager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
+            mNotificationManager.cancelAll();
+        }
     }
 
     /**

app/src/main/java/com/zulip/android/service/ZulipServices.java

@@ -24,6 +24,7 @@
 import retrofit2.http.Part;
 import retrofit2.http.Path;
 import retrofit2.http.Query;
+import retrofit2.http.Streaming;
 
 
 public interface ZulipServices {
@@ -60,6 +61,7 @@ Call<GetMessagesResponse> getMessages(@Query("anchor") String anchor,
     @POST("v1/dev_fetch_api_key")
     Call<LoginResponse> loginDEV(@Field("username") String username);
 
+    @Streaming
     @Multipart
     @POST("v1/user_uploads")
     Call<UploadResponse> upload(@Part MultipartBody.Part file);

app/src/main/res/drawable-hdpi/ic_done_white_24dp.png

@@ -30,4 +30,5 @@
     <color name="top_snackbar_bg_color">#000000</color>
     <color name="top_snackbar_text_color">#ffffff</color>
     <color name="progress_background_color">#444444</color>
+    <color name="notif_background">#009688</color>
 </resources>

app/src/main/res/drawable-mdpi/ic_done_white_24dp.png

@@ -168,4 +168,7 @@
     <string name="people_drawer_others_label">New Private Message</string>
     <string name="mentions">\@-mentions</string>
     <string name="attach">Attach</string>
+    <string name="notif_title">Upload to Zulip</string>
+    <string name="init_notif_title">Starting upload</string>
+    <string name="finish_notif_title">Complete</string>
 </resources>