/* Copyright (C) 2015-2024 Andreas Shimokawa, Carsten Pfeiffer, Daniele
|
Gobbetti, walkjivefly
|
|
This file is part of Gadgetbridge.
|
|
Gadgetbridge is free software: you can redistribute it and/or modify
|
it under the terms of the GNU Affero General Public License as published
|
by the Free Software Foundation, either version 3 of the License, or
|
(at your option) any later version.
|
|
Gadgetbridge is distributed in the hope that it will be useful,
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
GNU Affero General Public License for more details.
|
|
You should have received a copy of the GNU Affero General Public License
|
along with this program. If not, see <https://www.gnu.org/licenses/>. */
|
package nodomain.freeyourgadget.gadgetbridge.activities;
|
|
import androidx.annotation.Nullable;
|
import androidx.fragment.app.Fragment;
|
|
/**
|
* Abstract base class for fragments. Provides hooks that are called when
|
* the fragment is made visible and invisible in the activity. also allows
|
* the fragment to define the title to be shown in the activity.
|
*
|
* @see AbstractGBFragmentActivity
|
*/
|
public abstract class AbstractGBFragment extends Fragment {
|
private boolean mVisibleInActivity;
|
|
/**
|
* Called when this fragment has been fully scrolled into the activity.
|
*
|
* @see #isVisibleInActivity()
|
* @see #onMadeInvisibleInActivity()
|
*/
|
protected void onMadeVisibleInActivity() {
|
}
|
|
/**
|
* Called when this fragment has been scrolled out of the activity.
|
*
|
* @see #isVisibleInActivity()
|
* @see #onMadeVisibleInActivity()
|
*/
|
public void onMadeInvisibleInActivity() {
|
mVisibleInActivity = false;
|
}
|
|
/**
|
* Returns true if this fragment is currently visible in the hosting
|
* activity, not taking into account whether the screen is enabled at all.
|
*/
|
public boolean isVisibleInActivity() {
|
return mVisibleInActivity;
|
}
|
|
@Nullable
|
protected abstract CharSequence getTitle();
|
|
/**
|
* Internal
|
*
|
* @hide
|
*/
|
public void onMadeVisibleInActivityInternal() {
|
mVisibleInActivity = true;
|
if (isVisible()) {
|
onMadeVisibleInActivity();
|
}
|
}
|
}
|
