求助，关于手势操作。增加自动幻灯片小问题。

Question

我手中有一段现成的程序。就是几张图片。利用手势操作来回可以拖动的效果。
现需要将此程序再增加一个幻灯片自动滚动播放的效果。
还请各位帮帮忙。小弟刚接触android不到三天。很多都不熟悉。领导赶鸭子上架急着要求完成此功能。
求救，求救~~~或者哪位有此类幻灯片效果的程序告诉小弟也行。万分感激。
一下为相关代码。public class SwitchViewDemoActivity extends Activity implements OnViewChangeListener, OnClickListener{
    /** Called when the activity is first created. */
private MyScrollLayout mScrollLayout;

private ImageView[] mImageViews;

private int mViewCount;

private int mCurSel;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        init();
    }
    
        private void init()
    {
     mScrollLayout = (MyScrollLayout) findViewById(R.id.ScrollLayout);
    
     LinearLayout linearLayout = (LinearLayout) findViewById(R.id.llayout);
    
     mViewCount = mScrollLayout.getChildCount();
     mImageViews = new ImageView[mViewCount];
    
     for(int i = 0; i < mViewCount; i++)
     {
     mImageViews[i] = (ImageView) linearLayout.getChildAt(i);
     mImageViews[i].setEnabled(true);
     mImageViews[i].setOnClickListener(this);
     mImageViews[i].setTag(i);
     }
    
     mCurSel = 0;
     mImageViews[mCurSel].setEnabled(false);
    
     mScrollLayout.SetOnViewChangeListener(this);
    }
    private void setCurPoint(int index)
    {
     if (index < 0 || index > mViewCount - 1 || mCurSel == index)
     {
     return ;
     }
    
     mImageViews[mCurSel].setEnabled(true);
     mImageViews[index].setEnabled(false);
    
     mCurSel = index;
    }
public void OnViewChange(int view) {
// TODO Auto-generated method stub
setCurPoint(view);
} public void onClick(View v) {
// TODO Auto-generated method stub
int pos = (Integer)(v.getTag());
setCurPoint(pos);
mScrollLayout.snapToScreen(pos);
}

Answer 1

public class ViewPageActivity extends Activity implements android.view.View.OnClickListener, OnPageChangeListener{ private ViewPager mViewPager; private ViewPageAdapter mPageAdapter;

private List<View> mListViews;

private final static int viewBackground[] = {R.drawable.guide01,
R.drawable.guide02,
R.drawable.guide03,
R.drawable.guide04,
R.drawable.guide05,};


private ImageView[] mImageViews;

private int mViewCount;

private int mCurSel;

public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main_viewpage_layout);
        
      
        initViewPage();  
       
        init();
    }

private void initViewPage()
{
mListViews = new ArrayList<View>();
        LayoutInflater mLayoutInflater = getLayoutInflater();
        
        mViewCount = viewBackground.length;       
        for(int i = 0; i < mViewCount; i++)
        {
         View view = mLayoutInflater.inflate(R.layout.layout, null);
         view.setBackgroundResource(viewBackground[i]);
         mListViews.add(view);
        }
                
        mPageAdapter = new ViewPageAdapter(mListViews);
        mViewPager = (ViewPager) findViewById(R.id.viewpager);
        mViewPager.setAdapter(mPageAdapter);
        mViewPager.setOnPageChangeListener(this);
}


    private void init()
    {
     LinearLayout linearLayout = (LinearLayout) findViewById(R.id.llayout);
    
     mImageViews = new ImageView[mViewCount];
    
     for(int i = 0; i < mViewCount; i++)
     {
     mImageViews[i] = (ImageView) linearLayout.getChildAt(i);
     mImageViews[i].setEnabled(true);
     mImageViews[i].setOnClickListener(this);
     mImageViews[i].setTag(i);
     }
    
     mCurSel = 0;
     mImageViews[mCurSel].setEnabled(false);
    
    }
    
    private void setCurView(int pos)
    {
     if (pos < 0 || pos >= mViewCount)
     {
     return ;
     }     mViewPager.setCurrentItem(pos);
    }    
    private void setCurPoint(int index)
    {
     if (index < 0 || index > mViewCount - 1 || mCurSel == index)
     {
     return ;
     }
    
    
     mImageViews[mCurSel].setEnabled(true);
     mImageViews[index].setEnabled(false);
    
     mCurSel = index;
    }
    
     public void onClick(View v) {
// TODO Auto-generated method stub
int pos = (Integer)v.getTag();
setCurView(pos);
setCurPoint(pos);
}
public void onPageScrollStateChanged(int arg0) {
// TODO Auto-generated method stub

}
public void onPageScrolled(int arg0, float arg1, int arg2) {
// TODO Auto-generated method stub

}
public void onPageSelected(int arg0) {
// TODO Auto-generated method stub
setCurPoint(arg0);
}public class ViewPageAdapter extends PagerAdapter{ private final static String  TAG = "MyPagerAdapter";

List<View> mViewList;

public ViewPageAdapter(List<View> viewList)
{
mViewList = viewList;
}


@Override
public int getCount() {
// TODO Auto-generated method stub
if (mViewList != null)
{
return mViewList.size();
}

return 0;
}

@Override
public Object instantiateItem(View view, int index) {
// TODO Auto-generated method stub

((ViewPager) view).addView(mViewList.get(index), 0);

return mViewList.get(index);
}

@Override
public void destroyItem(View view, int position, Object arg2) {
// TODO Auto-generated method stub

((ViewPager) view).removeView(mViewList.get(position));
} @Override
public void finishUpdate(View arg0) {
// TODO Auto-generated method stub }
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 
android:layout_width="fill_parent" 
android:layout_height="fill_parent"
    xmlns:android="http://schemas.android.com/apk/res/android">    
<android.support.v4.view.ViewPager
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:id="@+id/viewpager">    
</android.support.v4.view.ViewPager>
    
    
    <LinearLayout 
     android:orientation="horizontal" 
     android:id="@+id/llayout" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_marginBottom="24.0dip" 
     android:layout_alignParentBottom="true" 
     android:layout_centerHorizontal="true">
    
        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:clickable="true"
            android:padding="15.0dip"
            android:src="@drawable/guide_round" />        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:clickable="true"
            android:padding="15.0dip"
            android:src="@drawable/guide_round" />        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:clickable="true"
            android:padding="15.0dip"
            android:src="@drawable/guide_round" />        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:clickable="true"
            android:padding="15.0dip"
            android:src="@drawable/guide_round" />        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:clickable="true"
            android:padding="15.0dip"
            android:src="@drawable/guide_round" />    </LinearLayout>
    
</RelativeLayout><?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >    <com.genius.scroll.MyScrollLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/ScrollLayout"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" >        <FrameLayout
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:background="@drawable/guide01" >
        </FrameLayout>        <FrameLayout
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:background="@drawable/guide02" >
        </FrameLayout>        <FrameLayout
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:background="@drawable/guide03" >
        </FrameLayout>        <FrameLayout
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:background="@drawable/guide04" >
        </FrameLayout>        <FrameLayout
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:background="@drawable/guide05" >
        </FrameLayout>
    </com.genius.scroll.MyScrollLayout>    <LinearLayout
        android:id="@+id/llayout"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:layout_marginBottom="24.0dip"
        android:orientation="horizontal" >        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:clickable="true"
            android:padding="15.0dip"
            android:src="@drawable/guide_round" />        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:clickable="true"
            android:padding="15.0dip"
            android:src="@drawable/guide_round" />        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:clickable="true"
            android:padding="15.0dip"
            android:src="@drawable/guide_round" />        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:clickable="true"
            android:padding="15.0dip"
            android:src="@drawable/guide_round" />        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:clickable="true"
            android:padding="15.0dip"
            android:src="@drawable/guide_round" />
    </LinearLayout></RelativeLayout>

Answer 2

自动播放的话，用viewflipper吧。代码量很少，就可以搞定