Java – How do I override a method only if a condition is found to be true?

In my MainActivity class, I want to stop overriding the attachBaseContext method if the button is pressed in my View.

Here’s the situation:

public class MainActivity extends AppCompatActivity {
    boolean value = true;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setting content view and stuff
    }

the following should be overridden only if value == true. 
    I can change the value to false by clicking a button in my view.
    @Override
    protected void attachBaseContext(Context base) {
        super.attachBaseContext(ZeTarget.attachBaseContext(base,this));
    }

public void stopOverriding (View view) {
        value = false;
    }

It seems to me that there is a button in my main activity layout that calls the stopOverriding() method when clicked:

<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/button"
android:onclick="stopOverriding"
android:text="@string/change"/>

I have the same override attachBaseContext() method in all my activities. My question is, is it possible that after clicking a button in the main activity, I can stop overriding this attachBaseContext() method in all activities?

You can’t decide at runtime whether a method is overridden or not (which is complicated if the class isn’t generated dynamically [and I don’t know if Dalvik supports it]).

Just check your condition in the method:

protected void attachBaseContext(Context base) {
    if (this.value) {
         Your special behavior
        super.attachBaseContext(ZeTarget.attachBaseContext(base,this));
    } else {
         The super's behavior, as though you hadn't overridden the method
        super.attachBaseContext(base);
    }
}