AutoBundle 
Automated packing and unpacking of Android Bundles.
Overview
Android's Bundle system works, but packing and unpacking the argument for Bundles is tedious and repetitive. This library takes care of the boilerplate, removing the need to manage putExtra, getExtra, and key values yourself.
Installation
AutoBundle uses jitpack to host its builds. Add the following to your gradle file to use AutoBundle:
repositories {
maven {
url "https://jitpack.io"
}
}
dependencies {
compile 'com.github.ajalt:AutoBundle:1.1'
}
Usage
AutoBundle is set up by annotating the fields of a class with the BundleArgument annotation. You can also annotate a class with BundleArguments to pack all fields in the class. Using it is this easy:
// Annotate the fields of a class of any type with @BundleArgument @BundleArguments class Arguments {
public String stringArg;
public int intArg;
// Constructors, etc...
}
Set the extras of an intent by passing the intent and an instance of the arguments class to AutoBundle.packIntent:
// Create an instance of the class, and pass it to one of the AutoBundle pack methods public static Intent createIntent(Context context, Arguments args) {
Intent intent = new Intent(context, SomeActivity.class);
AutoBundle.packIntent(args, intent);
return intent;
}
Then in the onCreate of the called Activity, unpack the intent with AutoBundle.unpackIntent:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Arguments args = new Arguments();
AutoBundle.unpackIntent(getIntent(), args);
// do something with `args`...
}
That's it. The annotated fields in the Arguments instance will be populated with the values sent in the Intent.
Bundles outside of intents.
You can also use AutoBundle for Bundles that are not associated with an Intent by calling AutoBundle.packBundle and AutoBundle.unpackBundle. For example, with the saveInstanceState methods:
public class MyActivity extends Activity {
@BundleArgument
private String savedField;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (savedInstanceState != null) {
AutoBundle.unpackBundle(savedInstanceState, this);
}
}
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
AutoBundle.packBundle(this, outState);
}
}
Manually specifying keys
By default, the keys for Bundle arguments are generated automatically. This works well if you have control of both packing and unpacking a Bundle. If you want to send or receive a Bundle from other sources, you can can specify a key parameter to BundleArgument to use specific key. Here's a translation of the standard email Intent using AutoBundle:
@BundleArgument(key=Intent.EXTRA_EMAIL) private String[] addresses; @BundleArgument(key=Intent.EXTRA_SUBJECT) private String subject; @BundleArgument(key=Intent.EXTRA_SUBJECT) private Uri attachment; public void composeEmail() {
Intent intent = new Intent(Intent.ACTION_SEND);
intent.setType("*/*");
AutoBundle.packIntent(this, intent);
startActivity(intent);
}
Javadoc
The full javadocs can be found here.
License
Copyright (c) 2015 AJ Alt
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.