App Closes after calling setComponentEnabledSetting for using Activity Alias

Your Activity is being closed probably because you have enabled/disabled your target Activity. Note that the App (Application Process) has not been killed. Anyways this is what I did to stop the Activity from closing:

In general you want to do the following:

1. Use just activity-aliases for icons
2. Remove the category "launcher" from the target Activity
3. Only enable/disable activity-aliases

Your AndroidManifest.xml should look something like this:

<activity android:name=".MainActivity" ... >
  <intent-filter>
    <action android:name="android.intent.action.MAIN" />
  </intent-filter>
</activity>

<activity-alias android:name=".No-Icon-Badge"
                android:targetActivity=".MainActivity"
                android:enabled="true" 
                ... >
  <intent-filter>
    <action android:name="android.intent.action.MAIN" />
    <category android:name="android.intent.category.LAUNCHER" />
  </intent-filter>
</activity-alias>

<activity-alias android:name=".Icon-Badge-1"
                android:targetActivity=".MainActivity"
                android:enabled="false" 
                ... >
  <intent-filter>
    <action android:name="android.intent.action.MAIN" />
    <category android:name="android.intent.category.LAUNCHER" />
  </intent-filter>
</activity-alias>

<activity-alias android:name=".Icon-Badge-2"
                android:targetActivity=".MainActivity"
                android:enabled="false"
                ... >
  <intent-filter>
    <action android:name="android.intent.action.MAIN" />
    <category android:name="android.intent.category.LAUNCHER" />
  </intent-filter>
</activity-alias>

...

So your MainActivity is enabled (keep it that way), but has no LAUNCHER category so it won't show up. Also the first activity-alias is enabled (this is your default) and all the other ones are disabled.

Good luck!