asLody/legend

Legend

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Whale Hook

What is Legend?

Legend is a Hook framework for Android Development, it allows you to Hook Java methods without ROOT. Even more exciting is that it supports both Dalvik and Art environment!

https://github.com/asLody/legend

1. What is the good

• Programming more efficient
• Dynamic debugging
• HotFix and needn't reboot app
• Fast dump Dex File in the shell
• Software security penetration
• Do some exciting things...

2. How to use

Example 1: Annotation type Hook

@Hook("android.widget.Toast::show")
public static void Toast_show(Toast thiz) {
  thiz.setText("XXXXXXXXX");
  //Call the origin method
  HookManager.getDefault().callSuper(thiz);
}

Example 2: Interception of startActivity

@Hook("android.app.Activity::[email protected]")
public static void Activity_startActivity(Activity thiz, Intent intent) {
  if (!ALLOW_LAUNCH_ACTIVITY) {
    Toast.makeText(thiz, "I am sorry to turn your Activity down :)", Toast.LENGTH_SHORT).show();
  } else {
    HookManager.getDefault().callSuper(thiz, intent);
  }
}

Notice:

• Write the following code down in where you want to your hooks enable.

HookManager.getDefault().applyHooks(YourClass.class);

• You can also hook a method without annotation.

HookManager.getDefault().hookMethod(originMethod, hookMethod);

3. Compatibility

• Dalvik & Android 4.2
• Dalvik & Android 4.3
• Art & Android 5.0
• Art & Android 5.0.1
• Art & Android 5.1
• Art & Android 6.0
• Art & Android 6.0.1
• aliyunOS VM

4. Showcase

https://github.com/dodola/RocooFix

5. Help improve Legend

if (Country.China == your.country) {
  QQGroup.join(530497973);
} else {
  webView.loadUrl("https://github.com/asLody/legend/issues");
}

6. Author

Lody