SwiperRefreshLayout 對於水平滾動衝突

CustomSwiperRefreshLayout.java

import android.content.Context;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.widget.SwipeRefreshLayout;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.ViewConfiguration;

/**
 * Created by showsky on 2018/4/18.
 */
public class CustomSwipeRefreshLayout extends SwipeRefreshLayout {

    private int mTouchSlop;
    private float mPrevX;

    public CustomSwipeRefreshLayout(@NonNull Context context) {
        super(context);
        mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();
    }

    public CustomSwipeRefreshLayout(@NonNull Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
        mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();
    }

    @Override
    public boolean onInterceptTouchEvent(MotionEvent event) {
        switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN:
                mPrevX = event.getX();
                break;
            case MotionEvent.ACTION_MOVE:
                final float eventX = event.getX();
                float xDiff = Math.abs(eventX - mPrevX);
                if (xDiff > mTouchSlop + 60) {
                    return false;
                }
                break;
        }
        return super.onInterceptTouchEvent(event);
    }
}

在 SwipeRefreshLayout 元件中，使用任何水平滾動元件容易造成水平和垂直滾動衝突，所以改寫 SwipeRefreshLayout 元件，增加水平滾動(Y軸) 的判定距離。