CODEWITHSUNDEEP
android
Artiom
Artiom

Reputation: 623

Android prevent back button from closing the app

In my app, I want to prevent the user from going back to login activity after logging in, but I don't want to close the app. For example if the previous activity is login activity, I don't want to do anything when the user presses back, just stay in the current activity/fragment.

Upvotes: 4

Views: 5070

Answers (4)

aladium
aladium

Reputation: 1

Just remove the super.onBackPressed like:

@Override
    public void onBackPressed() {
    //super.onBackPressed();
    . . .
}

It will only detect when user clicks back button, and doesn't close the app.

Upvotes: 0

Tyler V
Tyler V

Reputation: 10910

The correct way to do this is to call finish() in the Login activity when it completes and launches the next activity. For example:

Intent intent = new Intent(LoginActivity.this, NextActivity.class);
startActivity(intent);
finish();

This would prevent the user from going back from NextActivity to LoginActivity since calling finish() destroys LoginActivity and removes it from the back stack.

There is no need to remove onBackPressed from NextActivity, and that may have unintended consequences (for example, if they navigate from Login -> Next -> Other -> Next then click back, they would expect to go back to Other). Disabling onBackPressed in Next would prevent that.

Upvotes: 0

shb
shb

Reputation: 6277

Add android:noHistory="true" in the manifest of your LoginActivity

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

Upvotes: 0

Siddhesh Golatkar
Siddhesh Golatkar

Reputation: 295

add finish(); in login activity and add onBackPressed in your next activity

  @Override
    public void onBackPressed() {

    }

Upvotes: 3

Related Questions