Question

我试图禁用并启用View pager可交换程序，但是在我的下面的代码中多次滑动查看分页器，禁用/启用功能不起作用

public static void changeSwappableViewPagerStatus(ViewPagerCustomDuration viewPager, boolean status) {
    if (status) {
        viewPager.setOnTouchListener(null);
    } else {
        viewPager.setOnTouchListener(new View.OnTouchListener() {

            public boolean onTouch(View arg0, MotionEvent arg1) {
                return true;
            }
        });
    }
}

Answer 1

为此，您应该创建一个viewpager的子类，如下所示，并在onTouchEvent中执行：

import android.content.Context;
import android.support.v4.view.ViewPager;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.animation.DecelerateInterpolator;
import android.widget.Scroller;
import java.lang.reflect.Field;

public class NonSwipeableViewPager extends ViewPager {

    public NonSwipeableViewPager(Context context) {
        super(context);
        setMyScroller();
    }

public NonSwipeableViewPager(Context context, AttributeSet attrs) {
    super(context, attrs);
    setMyScroller();
}

@Override
public boolean onInterceptTouchEvent(MotionEvent event) {
    // Never allow swiping to switch between pages
    return false;
}

@Override
public boolean onTouchEvent(MotionEvent event) {
    // Never allow swiping to switch between pages
    return false;
}

//down one is added for smooth scrolling

private void setMyScroller() {
    try {
        Class<?> viewpager = ViewPager.class;
        Field scroller = viewpager.getDeclaredField("mScroller");
        scroller.setAccessible(true);
        scroller.set(this, new MyScroller(getContext()));
    } catch (Exception e) {
        e.printStackTrace();
    }
}

public class MyScroller extends Scroller {
    public MyScroller(Context context) {
        super(context, new DecelerateInterpolator());
    }

    @Override
    public void startScroll(int startX, int startY, int dx, int dy, int duration) {
        super.startScroll(startX, startY, dx, dy, 350 /*1 secs*/);
    }
}
}

完整资源： https://stackoverflow.com/a/9650884/6790308

Android禁用可交换的视图寻呼机

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