android 滑动欢迎界面

 

import java.util.ArrayList;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Parcelable;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.view.Window;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;

import com.lenovo.elec.R;

/**
 * 使用向导
 *
 * @author 
 *
 */
public class GuideActivity extends Activity {

 protected static final String TAG = "GuideActivity";
 ViewPager viewPager;
 ArrayList<View> list;
 ViewGroup main, group;
 ImageView imageView;
 ImageView[] imageViews;
 View view5;
 private Button guide_start;
 private Intent intent;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  // 设置无标题
  this.requestWindowFeature(Window.FEATURE_NO_TITLE);
  LayoutInflater inflater = getLayoutInflater();

  list = new ArrayList<View>();
  list.add(inflater.inflate(R.layout.guideitem1, null));
  list.add(inflater.inflate(R.layout.guideitem2, null));
  list.add(inflater.inflate(R.layout.guideitem3, null));
  list.add(inflater.inflate(R.layout.guideitem4, null));
  view5 = inflater.inflate(R.layout.guideitem5, null);
  list.add(view5);
  imageViews = new ImageView[list.size()];

  ViewGroup main = (ViewGroup) inflater.inflate(R.layout.guide, null);
  // group是R.layou.guide中的负责包裹小圆点的LinearLayout.
  ViewGroup group = (ViewGroup) main.findViewById(R.id.viewGroup);
  viewPager = (ViewPager) main.findViewById(R.id.viewPager);
  for (int i = 0; i < list.size(); i++) {
   imageView = new ImageView(this);
   imageView.setLayoutParams(new LayoutParams(30, 20));
   imageView.setPadding(15, 0, 15, 0);
   imageViews[i] = imageView;
   if (i == 0) {
    imageViews[i].setBackgroundResource(R.drawable.guide_dot_blue);
    // 默认进入程序后第一张图片被选中;
   } else {
    imageViews[i].setBackgroundResource(R.drawable.guide_dot_white);
   }
   group.addView(imageView);
  }
  setContentView(main);

  guide_start = (Button) view5.findViewById(R.id.guide_start);
  guide_start.setOnClickListener(new OnClickListener() {
   public void onClick(View v) {
    intent = new Intent(GuideActivity.this, CustomTabActivity.class);
    startActivity(intent);
    Toast.makeText(getApplicationContext(), "进入我的小屋", 0).show();
    finish();
   }
  });

  viewPager.setAdapter(new MyAdapter());
  viewPager.setOnPageChangeListener(new MyListener());

 }

 /**
  * 返回键退出
  */
 @Override
 public void onBackPressed() {

 }

 class MyAdapter extends PagerAdapter {

  @Override
  public int getCount() {
   return list.size();
  }

  @Override
  public boolean isViewFromObject(View arg0, Object arg1) {
   return arg0 == arg1;
  }

  @Override
  public int getItemPosition(Object object) {
   return super.getItemPosition(object);
  }

  @Override
  public void destroyItem(View arg0, int arg1, Object arg2) {
   ((ViewPager) arg0).removeView(list.get(arg1));
  }

  @Override
  public Object instantiateItem(View arg0, int arg1) {
   ((ViewPager) arg0).addView(list.get(arg1));
   return list.get(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) {

  }
 }

 class MyListener implements OnPageChangeListener {

  public void onPageScrollStateChanged(int arg0) {

  }

  public void onPageScrolled(int arg0, float arg1, int arg2) {

  }

  public void onPageSelected(int arg0) {
   for (int i = 0; i < imageViews.length; i++) {
    imageViews[arg0].setBackgroundResource(R.drawable.guide_dot_blue);
    if (arg0 != i) {
     imageViews[i].setBackgroundResource(R.drawable.guide_dot_white);
    }
   }

  }

 }

}