MessageBar
An Android Toast replacement, similar to the one seen in the GMail app. Multiple messages can be posted in succession, and each message will be shown for 5 seconds.
Usage
There's two ways to use the MessageBar. It can either be attached directly to an activity, or a View can be passed.
Attaching to an activity
This approach requires adding the following attributes to the Activity's theme.
<item name="messageBarContainerStyle">@style/MessageBar.Container</item>
<item name="messageBarTextStyle">@style/MessageBar.Message</item>
<item name="messageBarButtonStyle">@style/MessageBar.Button</item>
Attaching the MessageBar is then done by passing the Activity to the MessageBar constructor.
mMessageBar = new MessageBar(this);
This will automatically add a MessageBar layout to the content view.
Attaching to a View
This can be used e.g. when attaching to a Fragment, or if custom views are to be used for showing the message.
When using this approach, child views with the following id's must be added to the passed View.
mbContainer: The container that holds the message and the button views.mbMessage: A TextView that displays the message.mbButton: A TextView that displays the button text.
As an example, this is the default layout that's used when attaching to an Activity.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@id/mbContainer"
style="?attr/messageBarContainerStyle">
<TextView
android:id="@id/mbMessage"
style="?attr/messageBarTextStyle" />
<TextView
android:id="@id/mbButton"
style="?attr/messageBarButtonStyle" />
</LinearLayout>
The MessageBar is then attached by passing a parent view to the constructor.
Showing a message
A message is shown simple by calling MessageBar#show(...). A few methods are available here. It can either simply show a message or show a message and a button. When a button is shown, a Parcelable has to be passed that's then returned via MessageBar$OnMessageClickListener if the button is clicked.
Example:
mMessageBar.show("This is a message");
Credits
- Roman Nurik for creating the example this library is based on.
License
Copyright 2012 Simon Vig Therkildsen
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
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