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M66B
2018-08-19 05:25:49 +00:00
parent be5b608967
commit ee7b41f7b4
3 changed files with 72 additions and 25 deletions
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21
app/src/main/java/eu/faircode/email/ActivityBase.java
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@@ -25,6 +25,9 @@ import android.os.Bundle;
import android.preference.PreferenceManager;
import android.util.Log;
import java.util.ArrayList;
import java.util.List;
import androidx.appcompat.app.AppCompatActivity;
abstract class ActivityBase extends AppCompatActivity implements SharedPreferences.OnSharedPreferenceChangeListener {
@@ -69,4 +72,22 @@ abstract class ActivityBase extends AppCompatActivity implements SharedPreferenc
if ("theme".equals(key) || "debug".equals(key))
recreate();
}
private List<IBackPressedListener> backPressedListeners = new ArrayList<>();
public void addBackPressedListener(IBackPressedListener listener) {
backPressedListeners.add(listener);
}
@Override
public void onBackPressed() {
for (IBackPressedListener listener : backPressedListeners)
if (listener.onBackPressed())
return;
super.onBackPressed();
}
public interface IBackPressedListener {
boolean onBackPressed();
}
}