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Delta offers your android app the hot fix and incremental upgrade powers.

Principle

Inspired by wechat's Tinker, please check this page for more information.

Features

1. Kind to developers and easy to use.
2. Hot fix and incremental upgrade(on the schedule).
3. Supports all platform versions.
4. Fine compatibility.
5. Negligible performance cost.

To be improved

1. Verify patch file.
2. Handle exception.
3. Incremental upgrade.
4. It's up to you.

How to get

In your project's build.gradle

buildscript {

  repositories {

jcenter()
  
}

  dependencies {

classpath 'com.android.tools.build:gradle:x.y.z'

classpath 'org.byteam.delta:delta-gradle-plugin:x.y.z'

...
  
}
 
}
 

In your application module's build.gradle

apply plugin: 'com.android.application' apply plugin: 'delta' ... delta {

  enable true
  autoPushPatchToDevice true // for test 
}
 

Configurations

Avaliable options:

Generate patch dex

The delta gradle plugin will create some tasks:

1. Execute backup task to backup the dex and mapping files for future usage.
2. Find bugs, fix it(change some code).
3. Execute patch task, this task will apply existing mapping or specifed mapping and generate a new dex, then produce the final patch.

The final patch directory looks like this:

How to use

In your own Application:

public class App extends Application {

@Override
  protected void attachBaseContext(Context base) {

super.attachBaseContext(base);

// Install existing patch

Delta.install(this);

  
}

... 
}
 

/**  * ????????patch,??????,??????????.  *  * @param context Context  */ Delta.applyPatchFromDevice(Context context);
  /**  * ?????patch. ????????,?????UI????.  *  * @param context  Context  * @param patchDex patch??  */ Delta.applyPatch(Context context, File patchDex);
  /**  * ??????.  *  * @param context  Context  */ Delta.clean(Context context;  

Partners

Looking forward to your join!

Thanks to

1. MultiDex
2. ?????????
3. Binary diff/patch utility
4. ??App???????????
5. Instant Run: How Does it Work?

License

Apache 2.0