view页面跳转问题，急求！

public void setCurrentItem (int item, boolean smoothScroll)Set the currently selected pageParametersitem Item index to selectsmoothScroll True to smoothly scroll to the new item, false to transition immediately你看过ViewPager的API吗？

源码链接
效果图

1自动轮播

2手动轮播

3监听点击事件跳转界面

4每个可加标题（我的颜色太鲜艳了，就没有让文字显示）
接口回调步骤：
如果界面滚动了，获取当前的item,如果item==0,就设置为最后一个，如果，item==count+1,就设置为第一个，这样可以实现第一个和最后一个切换时不会出现闪现或卡顿的画面

这里用到了SparseBooleanArray，它是用来存储布尔值的，类似于key,value,根据其中存放的值来判断是否被选中

ViewPager 添加fragment 就能直接滑动 他有一个监听setOnPageChangeListener() 是监听滑动的事件 滑动一次都会进入这
setCurrentItem(0); 这个0就是滑动的界面 0 表示第一个 1 表示第二界面 想滑动第几个界面就输入几

第一个activity
package comqualitypictureactivity;
import javautilArrayList;
import javautilList;
import comqualitypictureR;
import androidappActivity;
import androidcontentContext;
import androidcontentIntent;
import androidosBundle;
import androidosParcelable;
import androidsupportv4viewPagerAdapter;
import androidsupportv4viewViewPager;
import androidsupportv4viewViewPagerOnPageChangeListener;
import androidutilDisplayMetrics;
import androidviewGestureDetector;
import androidviewKeyEvent;
import androidviewLayoutInflater;
import androidviewMotionEvent;
import androidviewView;
import androidviewWindow;
import androidviewGestureDetectorSimpleOnGestureListener;
import androidviewViewOnClickListener;
import androidwidgetButton;
import androidwidgetLinearLayout;
public class GuideActivity extends Activity
{
private ViewPager viewPager;
private List<View> mImageViews; // 滑动的集合
private int[] imageResId; // ID
private int currentItem = 0; // 当前的索引号
private GestureDetector gestureDetector; // 用户滑动
/ 记录当前分页ID /
private int flaggingWidth;// 互动翻页所需滚动的长度是当前屏幕宽度的1/3
@Override
public void onCreate(Bundle savedInstanceState)
{
superonCreate(savedInstanceState);
requestWindowFeature(WindowFEATURE_NO_TITLE);// 去掉标题栏
setContentView(Rlayoutguide_activity);
gestureDetector = new GestureDetector(new GuideViewTouch());
// 获取分辨率
DisplayMetrics dm = new DisplayMetrics();
getWindowManager()getDefaultDisplay()getMetrics(dm);
flaggingWidth = dmwidthPixels / 3;
imageResId = new int[]
{ Rdrawablepic_1, Rdrawablepic_2, Rdrawablepic_3, Rdrawablepic_4 };
mImageViews = new ArrayList<View>();
// 初始化资源
LayoutInflater viewInflater = (LayoutInflater) getSystemService(ContextLAYOUT_INFLATER_SERVICE);
// 0
View convertView0 = viewInflaterinflate(Rlayoutguide_item, null);
LinearLayout linearLayout0 = (LinearLayout) convertView0findViewById(Ridguide_item);
linearLayout0setBackgroundResource(imageResId[0]);
mImageViewsadd(linearLayout0);
// 1
View convertView1 = viewInflaterinflate(Rlayoutguide_item, null);
LinearLayout linearLayout1 = (LinearLayout) convertView1findViewById(Ridguide_item);
linearLayout1setBackgroundResource(imageResId[1]);
mImageViewsadd(linearLayout1);
// 2
View convertView2 = viewInflaterinflate(Rlayoutguide_item, null);
LinearLayout linearLayout2 = (LinearLayout) convertView2findViewById(Ridguide_item);
linearLayout2setBackgroundResource(imageResId[2]);
mImageViewsadd(linearLayout2);
// 3
View convertView3 = viewInflaterinflate(Rlayoutguide_item, null);
LinearLayout linearLayout3 = (LinearLayout) convertView3findViewById(Ridguide_item);
linearLayout3setBackgroundResource(imageResId[3]);
mImageViewsadd(linearLayout3);
// button监听
Button btn = (Button) convertView3findViewById(Ridstart);
btnsetVisibility(ViewVISIBLE);
btnsetOnClickListener(new OnClickListener()
{
public void onClick(View v)
{
GoToMainActivity();
}
});
viewPager = (ViewPager) findViewById(Ridguide_view);
viewPagersetAdapter(new MyAdapter());// 设置填充ViewPager页面的适配器
// 设置一个监听器，当ViewPager中的页面改变时调用
viewPagersetOnPageChangeListener(new MyPageChangeListener());
}
@Override
public boolean dispatchTouchEvent(MotionEvent event)
{
if (gestureDetectoronTouchEvent(event))
{
eventsetAction(MotionEventACTION_CANCEL);
}
return superdispatchTouchEvent(event);
}
private class GuideViewTouch extends SimpleOnGestureListener
{
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY)
{
if (currentItem == 3)
{
if (Mathabs(e1getX() - e2getX()) > Mathabs(e1getY() - e2getY()) && (e1getX() - e2getX() <= (-flaggingWidth) || e1getX() - e2getX() >= flaggingWidth))
{
if (e1getX() - e2getX() >= flaggingWidth)
{
GoToMainActivity();
return true;
}
}
}
return false;
}
}
/
进入主界面
/
void GoToMainActivity()
{
Intent intent = new Intent(GuideActivitythis, TabHostActivityclass);
startActivity(intent);
finish();
}
/
当ViewPager中页面的状态发生改变时调用

@author Administrator

/
private class MyPageChangeListener implements OnPageChangeListener
{
public void onPageSelected(int position)
{
currentItem = position;
}
public void onPageScrollStateChanged(int arg0)
{
}
public void onPageScrolled(int arg0, float arg1, int arg2)
{
}
}
/
填充ViewPager页面的适配器

@author Administrator

/
private class MyAdapter extends PagerAdapter
{
@Override
public int getCount()
{
return imageResIdlength;
}
@Override
public Object instantiateItem(View arg0, int arg1)
{
((ViewPager) arg0)addView(mImageViewsget(arg1));
return mImageViewsget(arg1);
}
@Override
public void destroyItem(View arg0, int arg1, Object arg2)
{
((ViewPager) arg0)removeView((View) arg2);
}
@Override
public boolean isViewFromObject(View arg0, Object arg1)
{
return arg0 == arg1;
}
@Override
public void restoreState(Parcelable arg0, ClassLoader arg1)
{
}
@Override
public Parcelable saveState()
{
return null;
}
@Override
public void startUpdate(View arg0)
{
}
@Override
public void finishUpdate(View arg0)
{
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event)
{
// TODO Auto-generated method stub
if (keyCode == KeyEventKEYCODE_BACK)
{
GoToMainActivity();
return false;
}
return superonKeyDown(keyCode, event);
}
}
布局文件
第一个
<xml version="10" encoding="utf-8">
<LinearLayout xmlns:android=" >