android: choose default launcher programmatically

Question

I want to pop up a dialog that lets the user choose a launcher to be launched with set as default option. I tried

Intent home = new Intent(         


        

Answer 1

Starting from API 29 this is now officially supported using RoleManager.

A very simple Kotlin example of a method you can call from any activity:

fun showLauncherSelector(activity: AppCompatActivity, requestCode : Int) {
    val roleManager = activity.getSystemService(Context.ROLE_SERVICE) as RoleManager
    if(roleManager.isRoleAvailable(RoleManager.ROLE_HOME)){
        val intent = roleManager.createRequestRoleIntent(RoleManager.ROLE_HOME)
        activity.startActivityForResult(intent, requestCode)
    }
}

Then you can check for errors in the caller activity:

override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
    if (requestCode == MY_REQUEST_CODE) {
        if (resultCode != Activity.RESULT_OK) {
            // Something went wrong
        }
    }
}