PlayerAndroid/app/src/main/java/code/name/monkey/retromusic/misc/ScrollAwareFABBehavior.java

110 lines
4.5 KiB
Java

package code.name.monkey.retromusic.misc;
import android.content.Context;
import android.os.Handler;
import android.support.annotation.NonNull;
import android.support.design.widget.CoordinatorLayout;
import android.support.design.widget.FloatingActionButton;
import android.support.v4.view.ViewCompat;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import android.view.animation.LinearInterpolator;
/*Don't delete even if its not showing not using*/
public class ScrollAwareFABBehavior extends CoordinatorLayout.Behavior<FloatingActionButton> {
private static final String TAG = "ScrollingFABBehavior";
Handler mHandler;
public ScrollAwareFABBehavior(Context context, AttributeSet attrs) {
super();
}
@Override
public void onStopNestedScroll(@NonNull CoordinatorLayout coordinatorLayout,
@NonNull FloatingActionButton child,
@NonNull View target) {
super.onStopNestedScroll(coordinatorLayout, child, target);
if (mHandler == null)
mHandler = new Handler();
mHandler.postDelayed(() -> {
child.animate().translationY(0).setInterpolator(new LinearInterpolator()).start();
Log.d("FabAnim", "startHandler()");
}, 1000);
}
@Override
public void onNestedScroll(@NonNull CoordinatorLayout coordinatorLayout,
@NonNull FloatingActionButton child,
@NonNull View target,
int dxConsumed,
int dyConsumed,
int dxUnconsumed,
int dyUnconsumed) {
super.onNestedScroll(coordinatorLayout, child, target, dxConsumed, dyConsumed, dxUnconsumed, dyUnconsumed);
//child -> Floating Action Button
if (dyConsumed > 0) {
Log.d("Scrolling", "Up");
CoordinatorLayout.LayoutParams layoutParams = (CoordinatorLayout.LayoutParams) child.getLayoutParams();
int fab_bottomMargin = layoutParams.bottomMargin;
child.animate().translationY(child.getHeight() + fab_bottomMargin).setInterpolator(new LinearInterpolator()).start();
} else if (dyConsumed < 0) {
Log.d("Scrolling", "down");
child.animate().translationY(0).setInterpolator(new LinearInterpolator()).start();
}
}
@Override
public boolean onStartNestedScroll(@NonNull CoordinatorLayout coordinatorLayout,
@NonNull FloatingActionButton child,
@NonNull View directTargetChild,
@NonNull View target,
int nestedScrollAxes) {
if (mHandler != null) {
mHandler.removeMessages(0);
Log.d("Scrolling", "stopHandler()");
}
return nestedScrollAxes == ViewCompat.SCROLL_AXIS_VERTICAL;
}
}
/*extends FloatingActionButton.Behavior {
public ScrollAwareFABBehavior(Context context, AttributeSet attrs) {
super();
}
@Override
public boolean onStartNestedScroll(@NonNull final CoordinatorLayout coordinatorLayout,
@NonNull final FloatingActionButton child,
@NonNull final View directTargetChild,
@NonNull final View target,
final int nestedScrollAxes) {
// Ensure we react to vertical scrolling
return nestedScrollAxes == ViewCompat.SCROLL_AXIS_VERTICAL
|| super.onStartNestedScroll(coordinatorLayout, child, directTargetChild, target, nestedScrollAxes);
}
@Override
public void onNestedScroll(@NonNull CoordinatorLayout coordinatorLayout,
@NonNull FloatingActionButton child,
@NonNull View target,
int dxConsumed,
int dyConsumed,
int dxUnconsumed,
int dyUnconsumed) {
super.onNestedScroll(coordinatorLayout, child, target, dxConsumed, dyConsumed, dxUnconsumed,
dyUnconsumed);
if (dyConsumed > 0 && child.getVisibility() == View.VISIBLE) {
child.hide();
} else if (dyConsumed < 0 && child.getVisibility() != View.VISIBLE) {
child.show();
}
}
}*/