ScrollView的滾動監聽

自定義一個實現ScrollView的View，代碼以下：

package com.art.artcircle.widget;
import android.content.Context;
import android.util.AttributeSet;
import android.widget.ScrollView;
public class ScrollListenerView extends ScrollView {
    private OnScrollVerticalChangedListener mListener;
    public ScrollListenerView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }
    public ScrollListenerView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }
    public ScrollListenerView(Context context) {
        super(context);
    }
    public void setOnScrollVerticalChangedListener(OnScrollVerticalChangedListener listener) {
        mListener = listener;
    }
    @Override
    protected void onScrollChanged(int l, int t, int oldl, int oldt) {
        super.onScrollChanged(l, t, oldl, oldt);
        if (t != oldt) {
            mListener.onScrollVerticalChanged(t);
        }
    }
    public interface OnScrollVerticalChangedListener {
        void onScrollVerticalChanged(int currentVertical);
    }
}

在layout佈局中使用：

 <com.art.artcircle.widget.ScrollListenerView
            android:id="@+id/slv_view"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_below="@+id/layout_title"
            android:orientation="vertical"
            android:scrollbars="none">
        </com.art.artcircle.widget.ScrollListenerView>

代碼中處理ScrollView的滾動監聽事件

 // 設置滾動監聽
        ScrollListenerView scrollListenerView = (ScrollListenerView) findViewById(R.id.slv_view);
        scrollListenerView.setOnScrollVerticalChangedListener(new          ScrollListenerView.OnScrollVerticalChangedListener() {
            @Override
            public void onScrollVerticalChanged(int currentVertical) {
                if (mPhoneRelativeLayout.getVisibility() == View.VISIBLE) {
                    mPhoneRelativeLayout.setVisibility(View.GONE);
                }
            }
        });