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mirror of https://codeberg.org/Freeyourgadget/Gadgetbridge synced 2024-11-05 01:37:03 +01:00
Gadgetbridge/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/AbstractGBFragment.java
2024-01-10 19:01:48 +01:00

75 lines
2.3 KiB
Java

/* 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()
*/
protected 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();
}
}
}