Control default auto rotate screen in my application

Question

I have a toggle button in my application. I want to change or control default setting, Auto rotate screen(Settings>Display>Auto rotate screen) programmatically. Does anybody

Answer 1

a1.setOnClickListener(new OnClickListener() {

    @Override
    public void onClick(View v) {
        startActivity(new Intent(getApplicationContext(), MainActivity.class));
        android.provider.Settings.System.putInt(getContentResolver(),
                android.provider.Settings.System.USER_ROTATION,0);
    }
});
a2.setOnClickListener(new OnClickListener() {

    @Override
    public void onClick(View v) {
        startActivity(new Intent(getApplicationContext(), MainActivity.class));
        android.provider.Settings.System.putInt(getContentResolver(),
                android.provider.Settings.System.USER_ROTATION,90);
    }
});