public class WhlBehavior extends AppBarLayout.Behavior { /** * 是否处于惯性滑动状态 */ private boolean isFlinging = false; public WhlBehavior() {}
public WhlBehavior(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
public void onStopNestedScroll(CoordinatorLayout coordinatorLayout, AppBarLayout abl, View target, int type) {
//如果不是惯性滑动,让他可以执行紧贴操作
if (!isFlinging) {
super.onStopNestedScroll(coordinatorLayout, abl, target, type);
}
}
@Override
public void onNestedPreScroll(CoordinatorLayout coordinatorLayout, AppBarLayout child, View target, int dx, int dy, int[] consumed, int type) {
super.onNestedPreScroll(coordinatorLayout, child, target, dx, dy, consumed, type);
//type==1时处于非惯性滑动
if (type == 1) {
isFlinging = false;
}
}
@Override
public boolean onNestedFling(@NonNull CoordinatorLayout coordinatorLayout, @NonNull AppBarLayout child, @NonNull View target, float velocityX, float velocityY, boolean consumed) {
//惯性滑动的时候设置为true
isFlinging = true;
return super.onNestedFling(coordinatorLayout, child, target, velocityX, velocityY, consumed);
}
}
com.puersi.uranium.widget.WhlBehavior
app:layout_behavior="@string/my_Behavior"
