Gallery滑动图片显示圆点

package com.a; import java.util.List; import android.app.Activity; import android.content.Context; import android.os.Bundle; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.BaseAdapter; import android.widget.Gallery; import android.widget.ImageSwitcher; import android.widget.ImageView; import android.widget.AdapterView.OnItemSelectedListener; public class CircleActivity extends Activity implements OnItemSelectedListener{ /** Called when the activity is first created. */ private Gallery gallery; private ImageAdapter image; private ImageView iv1,iv2,iv3,iv4,iv5,iv6; private ImageSwitcher is; private int[] a=new int[]{R.drawable.about_one,R.drawable.back_one,R.drawable.person, R.drawable.person_one,R.drawable.person_two,R.drawable.world}; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.success); // is=(ImageSwitcher)findViewById(R.id.switcher); // is.setFactory(this); iv1=(ImageView)findViewById(R.id.iv1); iv2=(ImageView)findViewById(R.id.iv2); iv3=(ImageView)findViewById(R.id.iv3); iv4=(ImageView)findViewById(R.id.iv4); iv5=(ImageView)findViewById(R.id.iv5); iv6=(ImageView)findViewById(R.id.iv6); gallery=(Gallery)findViewById(R.id.gy); image=new ImageAdapter(this); gallery.setAdapter(image); gallery.setOnItemSelectedListener(this); // LinearLayout pointLinear = (LinearLayout) findViewById(R.id.gallery_point_linear); //pointLinear.setBackgroundColor(Color.argb(200, 135, 135, 152)); } public class ImageAdapter extends BaseAdapter{ private List<String> imageUrls; private Context mcontext; public ImageAdapter(Context context) { this.mcontext=context; } @Override public int getCount() { // TODO Auto-generated method stub return a.length; //return Integer.MAX_VALUE; } @Override public Object getItem(int position) { // TODO Auto-generated method stub return position; //return imageUrls.get(position % imageUrls.size()); } @Override public long getItemId(int position) { // TODO Auto-generated method stub return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { // TODO Auto-generated method stub ImageView imView=new ImageView(mcontext); imView.setImageResource(a[position]); //imView.setImageResource(a[position%a.length]); imView.setScaleType(ImageView.ScaleType.FIT_XY); //重新设定图片的宽高 imView.setLayoutParams(new Gallery.LayoutParams(Gallery.LayoutParams.FILL_PARENT,160)); return imView; } } public void changePointView(int cur){ switch (cur) { case 0: iv2.setImageResource(R.drawable.feature_point); iv1.setImageResource(R.drawable.feature_point_cur); System.out.println(cur); break; case 1: iv3.setImageResource(R.drawable.feature_point); iv1.setImageResource(R.drawable.feature_point); iv2.setImageResource(R.drawable.feature_point_cur); System.out.println(cur); break; case 2: iv4.setImageResource(R.drawable.feature_point); iv2.setImageResource(R.drawable.feature_point); iv3.setImageResource(R.drawable.feature_point_cur); System.out.println(cur); break; case 3: iv5.setImageResource(R.drawable.feature_point); iv3.setImageResource(R.drawable.feature_point); iv4.setImageResource(R.drawable.feature_point_cur); System.out.println(cur); break; case 4: iv6.setImageResource(R.drawable.feature_point); iv4.setImageResource(R.drawable.feature_point); iv5.setImageResource(R.drawable.feature_point_cur); System.out.println(cur); break; case 5: iv5.setImageResource(R.drawable.feature_point); iv6.setImageResource(R.drawable.feature_point_cur); System.out.println(cur); break; default: break; } } @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { // TODO Auto-generated method stub //is.setImageResource(b[position]); changePointView(position%a.length); } @Override public void onNothingSelected(AdapterView<?> arg0) { // TODO Auto-generated method stub } }