MessageBarManager
MessageBarManager provides a simple solution for presenting system-wide messages.
Author
Terry Worona
Tweet me @terryworona
Email me at terryworona@gmail.com
Usage
Calling the manager
As a singleton class, the manager can be accessed from anywhere within your app via the + sharedInstance function:
[MessageBarManager sharedInstance]
Presenting a basic message
All messages can be preseted via showMessageWithTitle:description:type:. Additional arguments include duration and callback blocks to catch a user tap.
Basic message:
[[GAMessageBarManager sharedInstance] showMessageWithTitle:@"Title" description:@"Description" type:MessageBarMessageTypeError];
The default display duration is 3 seconds. You can override this value by supplying it as an additional argument:
[[GAMessageBarManager sharedInstance] showMessageWithTitle:@"Title" description:@"Description" type:MessageBarMessageTypeError forDuration:10];
Callbacks
By default, if a user taps a on a message while it is presented, it will automatically dismiss. To be notified of the touch, simply supply a callback block:
[[GAMessageBarManager sharedInstance] showMessageWithTitle:@"Title" description:@"Description" type:MessageBarMessageTypeError callback:^{
NSLog@"Message Tapped!";
}];
Queue
The managed is backed by a queue that manages suquential requests to present a message. You can stack as many messages you want on the stack and they will be presetented one after another:
[[GAMessageBarManager sharedInstance] showMessageWithTitle:@"Message 1" description:@"Description 1" type:MessageBarMessageTypeError];
[[GAMessageBarManager sharedInstance] showMessageWithTitle:@"Message 2" description:@"Description 2" type:MessageBarMessageTypeSuccess];
[[GAMessageBarManager sharedInstance] showMessageWithTitle:@"Message 2" description:@"Description 3" type:MessageBarMessageTypeInfo];
Customization
The MessageBarStyleSheet has functions pertaining to background and stroke color as well as icon images. All of these functions may be subclassed and/or directly modified to customize the look and feel of the message bar.
+ (UIColor*)backgroundColorForMessageType:(MessageBarMessageType)type;
+ (UIColor*)strokeColorForMessageType:(MessageBarMessageType)type;
+ (UIImage*)iconImageForMessageType:(MessageBarMessageType)type;
New Types
Adding another message type, for instance, MessageBarMessageTypeWarning, is as easy as 1, 2, 3!
Step 1
Add the new type to the typedef found in MessageBarManager.h
typedef enum {
MessageBarMessageTypeError,
MessageBarMessageTypeSuccess,
MessageBarMessageTypeInfo,
MessageBarMessageTypeWarning
} MessageBarMessageType;
Step 2
Add new colors and icons to the stylesheet:
+ (UIColor*)backgroundColorForMessageType:(MessageBarMessageType)type
{
UIColor *backgroundColor = nil;
switch (type) {
…
case MessageBarMessageTypeWarning:
backgroundColor = [UIColor grayColor];
break;
default:
break;
}
return backgroundColor;
}
+ (UIColor*)strokeColorForMessageType:(MessageBarMessageType)type
{
UIColor *strokeColor = nil;
switch (type) {
…
case MessageBarMessageTypeWarning:
backgroundColor = [UIColor darkGrayColor];
break;
default:
break;
}
return backgroundColor;
}
+ (UIImage*)iconImageForMessageType:(MessageBarMessageType)type
{
UIImage *iconImage = nil;
switch (type) {
…
case MessageBarMessageTypeInfo:
iconImage = [UIImage imageNamed:kImageIconWarning];
break;
default:
break;
}
return iconImage;
}
Step 3
Displaying a new message with the message type.
[[GAMessageBarManager sharedInstance] showMessageWithTitle:@"Title" description:@"Description" type:MessageBarMessageTypeWarning];
License
Copyright (C) 2013 Terry Worona
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software" ), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.