Question

viewPager滑动到最后一张怎么进入下个页面

Answer 1

public class LastPageJumpListener implements OnPageChangeListener {

private int lastIndex;
private Runnable command;

/**
* 是否可以跳转
*/
private boolean canJump;
private int curPosition;

/**
* @param lastIndex
* 最后一页的索引
* @param command
* 事件触发时你想要做的事情
*/
public LastPageJumpListener(int lastIndex, Runnable command) {
this.lastIndex = lastIndex;
this.command = command;
}

@Override
public void onPageScrolled(int position, float positionOffset,
int positionOffsetPixels) {
Log.e(TAG, "onPageScrolled position:" + position);
//当最后一页往后划动的时候触发该事件
if (position == lastIndex && positionOffset == 0
&& positionOffsetPixels == 0) {
if (canJump) {
command.run();
// 事件执行一次后进行重置,避免事件多次触发
canJump = false;
}
}
}

/*
* (non-Javadoc)
*
* @see
* android.support.v4.view.ViewPager.OnPageChangeListener#onPageSelected
* (int)
*/
@Override
public void onPageSelected(int position) {
curPosition = position;
}

/**
* public static final int SCROLL_STATE_IDLE = 0;
*
* public static final int SCROLL_STATE_DRAGGING = 1;
*
* public static final int SCROLL_STATE_SETTLING = 2;
*/
@Override
public void onPageScrollStateChanged(int state) {
Log.e(TAG, "onPageScrollStateChanged state:" + state);
// 判断是否是划动状态且是最后一页
if (state == ViewPager.SCROLL_STATE_DRAGGING
&& curPosition == lastIndex) {
canJump = true;
} else {
canJump = false;
}
}

}

这是我自己写的，实测可以用，不懂你可以问我

Answer 2

mViewPager.setCurrentItem(position)