Do not allow onBackPressed to run

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In my application, when the user logs in if he or she presses the onBackPressed() from his smartphone the app should not return to the previous screen. When he logs in and I change Activity I set in Intent the following code:

    intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

In some cell phones the following code works.. In others it does not. What to do?

android

1 answer

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To prevent the onBackPressed() do something about anything Activity just overwrite it on Activity in question:

@Override
public void onBackPressed() {
    // Não faz nada
}

But in your case I think the ideal would be to finish the Activity login calling finish() shortly after the startActivity() initiating the second Activity:

startActivity(new Intent(this, SegundaActivity.class));
finish();

Thus the login Activity exits the activity stack and becomes the second Activity at the top.

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