Package com.pranavpandey.android.dynamic.support.behavior

Class DynamicFABScrollBehavior

java.lang.Object

androidx.coordinatorlayout.widget.CoordinatorLayout.Behavior<V>

com.google.android.material.appbar.AppBarLayout.ScrollingViewBehavior

com.pranavpandey.android.dynamic.support.behavior.DynamicFABScrollBehavior

public class DynamicFABScrollBehavior
extends AppBarLayout.ScrollingViewBehavior

A FloatingActionButton behavior to automatically show or hide it according to the nested scroll. Set this behavior in the layout file having CoordinatorLayout as root element to show or hide the FAB according to the scroll direction.

Scrolling in upwards direction will hide the FAB and scrolling in downwards direction will make it visible.

Constructor Summary

Constructors

Constructor	Description
DynamicFABScrollBehavior(Context context, AttributeSet attrs)

Method Summary

Modifier and Type	Method	Description
int	getLeftAndRightOffset()
final int	getOverlayTop()
int	getTopAndBottomOffset()
boolean	isHorizontalOffsetEnabled()
boolean	isVerticalOffsetEnabled()
protected void	layoutChild(CoordinatorLayout arg0, View arg1, int arg2)
boolean	layoutDependsOn(CoordinatorLayout parent, View child, View dependency)
boolean	onLayoutChild(CoordinatorLayout arg0, View arg1, int arg2)
boolean	onMeasureChild(CoordinatorLayout arg0, View arg1, int arg2, int arg3, int arg4, int arg5)
void	onNestedScroll(CoordinatorLayout coordinatorLayout, View child, View target, int dxConsumed, int dyConsumed, int dxUnconsumed, int dyUnconsumed, int type, int[] consumed)
boolean	onStartNestedScroll(CoordinatorLayout coordinatorLayout, View child, View directTargetChild, View target, int nestedScrollAxes, int type)
void	setHorizontalOffsetEnabled(boolean arg0)
boolean	setLeftAndRightOffset(int arg0)
final void	setOverlayTop(int arg0)
boolean	setTopAndBottomOffset(int arg0)
void	setVerticalOffsetEnabled(boolean arg0)
protected boolean	shouldHeaderOverlapScrollingChild()

Methods inherited from class com.google.android.material.appbar.AppBarLayout.ScrollingViewBehavior

onDependentViewChanged, onDependentViewRemoved, onRequestChildRectangleOnScreen

Methods inherited from class androidx.coordinatorlayout.widget.CoordinatorLayout.Behavior

blocksInteractionBelow, getInsetDodgeRect, getScrimColor, getScrimOpacity, getTag, onApplyWindowInsets, onAttachedToLayoutParams, onDetachedFromLayoutParams, onInterceptTouchEvent, onNestedFling, onNestedPreFling, onNestedPreScroll, onNestedPreScroll, onNestedScroll, onNestedScroll, onNestedScrollAccepted, onNestedScrollAccepted, onRestoreInstanceState, onSaveInstanceState, onStartNestedScroll, onStopNestedScroll, onStopNestedScroll, onTouchEvent, setTag

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

DynamicFABScrollBehavior

public DynamicFABScrollBehavior(@NonNull
 Context context,
 @Nullable
 AttributeSet attrs)

Method Details

layoutDependsOn

public boolean layoutDependsOn(CoordinatorLayout parent,
 View child,
 View dependency)

Overrides:

layoutDependsOn in class AppBarLayout.ScrollingViewBehavior

onStartNestedScroll

public boolean onStartNestedScroll(@NonNull
 CoordinatorLayout coordinatorLayout,
 @NonNull
 View child,
 @NonNull
 View directTargetChild,
 @NonNull
 View target,
 int nestedScrollAxes,
 int type)

Overrides:

onStartNestedScroll in class CoordinatorLayout.Behavior<View>

onNestedScroll

public void onNestedScroll(@NonNull
 CoordinatorLayout coordinatorLayout,
 @NonNull
 View child,
 @NonNull
 View target,
 int dxConsumed,
 int dyConsumed,
 int dxUnconsumed,
 int dyUnconsumed,
 int type,
 @NonNull
 int[] consumed)

Overrides:

onNestedScroll in class CoordinatorLayout.Behavior<View>

onMeasureChild

public boolean onMeasureChild(@NonNull
 CoordinatorLayout arg0,
 @NonNull
 View arg1,
 int arg2,
 int arg3,
 int arg4,
 int arg5)

Overrides:

onMeasureChild in class CoordinatorLayout.Behavior<View>

layoutChild

protected void layoutChild(@NonNull
 CoordinatorLayout arg0,
 @NonNull
 View arg1,
 int arg2)

shouldHeaderOverlapScrollingChild

protected boolean shouldHeaderOverlapScrollingChild()

setOverlayTop

public final void setOverlayTop(int arg0)

getOverlayTop

public final int getOverlayTop()

onLayoutChild

public boolean onLayoutChild(@NonNull
 CoordinatorLayout arg0,
 @NonNull
 View arg1,
 int arg2)

Overrides:

onLayoutChild in class CoordinatorLayout.Behavior<V extends View>

setTopAndBottomOffset

public boolean setTopAndBottomOffset(int arg0)

setLeftAndRightOffset

public boolean setLeftAndRightOffset(int arg0)

getTopAndBottomOffset

public int getTopAndBottomOffset()

getLeftAndRightOffset

public int getLeftAndRightOffset()

setVerticalOffsetEnabled

public void setVerticalOffsetEnabled(boolean arg0)

isVerticalOffsetEnabled

public boolean isVerticalOffsetEnabled()

setHorizontalOffsetEnabled

public void setHorizontalOffsetEnabled(boolean arg0)

isHorizontalOffsetEnabled

public boolean isHorizontalOffsetEnabled()