Remove Activity as Default Launcher

Question

I set my activity as a default launcher to intercept home button clicks like so:

Answer 1

Have a look at the android.permission.SET_PREFERRED_APPLICATIONS permission. Also this method http://developer.android.com/reference/android/content/pm/PackageManager.html#clearPackagePreferredActivities(java.lang.String)

Answer 2

if it's your app that you're clearing its defaults , you can simply call :

getPackageManager().clearPackagePreferredActivities(getPackageName());

then , in order to show the dialog of choosing which launcher to use , use:

final Intent intent=new Intent();
intent.setAction(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_HOME);
startActivity(intent);

Answer 3

You cannot override the behavior of the home key to suit your application; this is a design decision by Google, to ensure the user can always return to a static location. There may be some ways around this (if they still exist) but they are unintended bugs which an application should not rely on.

The short answer: you can have any key except the home key.

Answer 4

This solution is a clever way of doing it: Clearing and setting the default home application

The code in onResume() basically goes like this:

    ComponentName componentName = new ComponentName(MyActivity.this, FakeHome.class);
    if (!isMyLauncherDefault()) {
        Log.e(TAG, "MyActivity is not default home activity!");

        // toggle fake activity
        PackageManager pm = getPackageManager();
        int flag = ((pm.getComponentEnabledSetting(componentName) == PackageManager.COMPONENT_ENABLED_STATE_ENABLED) ? PackageManager.COMPONENT_ENABLED_STATE_DISABLED
                : PackageManager.COMPONENT_ENABLED_STATE_ENABLED);
        pm.setComponentEnabledSetting(componentName, flag, PackageManager.DONT_KILL_APP);

        // start home activity to enable chooser
        Intent selector = new Intent(Intent.ACTION_MAIN);
        selector.addCategory(Intent.CATEGORY_HOME);
        startActivity(selector);
    }

and the method isMyLauncherDefault() is taken from here: How to check if my application is the default launcher