Question

I want to create the application that lists all install applications in my device. And After that I want to set it as Hide and Show With which another User can not able to see that particular application.
So is it possible ?
If yes, then How?

Answer 1

Yes, if you don’t add the following in your main activity’s declaration in android manifest:

<intent-filter>
    <action android:name="android.intent.action.MAIN" />
    <category android:name="android.intent.category.LAUNCHER" />
</intent-filter>

by doing so, your app will not be listed in launcher but will be installed.
However, in order to run it, perhaps you may register a broadcast receiver in its manifest and use another application to send a broadcast which is received by its (hidden app’s) broadcast receiver which starts the activity.