Highlight custom button press by quick alpha animation

This ensures feedback is given to the user after selecting custom buttons. For the OnOff switch buttons the feedback is done via changing the OnOff switch state. Remove assignment of CustomButtonCell's title.highlightedTextColor as anyway unused.

Author: wutschel

XBMC Remote/CustomButtonCell.m

@@ -65,7 +65,6 @@ - (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString*)reuse
         title.adjustsFontSizeToFitWidth = YES;
         title.minimumScaleFactor = FONT_SCALING_MIN;
         title.textColor = UIColor.lightGrayColor;
-        title.highlightedTextColor = UIColor.grayColor;
         [self.contentView addSubview:title];
         self.buttonLabel = title;
 

XBMC Remote/RightMenuViewController.m

@@ -232,6 +232,20 @@ - (void)loadCustomButtons {
     }
 }
 
+- (void)highlightCustomButton:(NSIndexPath*)indexPath {
+    // Short animation to highlight the button selection
+    CustomButtonCell *cell = [menuTableView cellForRowAtIndexPath:[NSIndexPath indexPathForRow:indexPath.row inSection:0]];
+    [UIView animateWithDuration:0.1
+                          delay:0.0
+                        options:UIViewAnimationOptionCurveEaseInOut
+                     animations:^{
+        cell.alpha = 0.1;
+    }
+                     completion:^(BOOL finished) {
+        cell.alpha = 1.0;
+    }];
+}
+
 #pragma mark - UISwitch
 
 - (void)toggleSwitch:(UISwitch*)onoff {
@@ -351,6 +365,7 @@ - (void)tableView:(UITableView*)tableView didSelectRowAtIndexPath:(NSIndexPath*)
             NSDictionary *parameters = tableData[indexPath.row][@"action"][@"params"] ?: @{};
             [self xbmcAction:command params:parameters uiControl:nil];
         }
+        [self highlightCustomButton:indexPath];
     }
 }