Android之Gallery使用例子

packagecom.example.galleryex02;

importandroid.app.Activity;

importandroid.content.Context;

importandroid.os.Bundle;

importandroid.view.MotionEvent;

importandroid.view.View;

importandroid.view.ViewGroup;

importandroid.widget.BaseAdapter;

importandroid.widget.Gallery;

importandroid.widget.ImageView;

publicclassMainActivityextendsActivity {

  @Override

  publicvoidonCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

    setContentView(R.layout.main);

    setTitle("电影海报");

    Gallery gallery = (Gallery) findViewById(R.id.gallery1);

    MyGalleryAdapter galAdapter =newMyGalleryAdapter(this);

    gallery.setAdapter(galAdapter);

  }

  publicclassMyGalleryAdapterextendsBaseAdapter {

    Context context;

    Integer[] posterID = { R.drawable.mov11, R.drawable.mov12,

        R.drawable.mov13, R.drawable.mov14, R.drawable.mov15,

        R.drawable.mov16, R.drawable.mov17, R.drawable.mov18,

        R.drawable.mov19, R.drawable.mov20 };

    publicMyGalleryAdapter(Context c) {

      context = c;

    }

    publicintgetCount() {

      // TODO Auto-generated method stub

      returnposterID.length;

    }

    publicObject getItem(intarg0) {

      // TODO Auto-generated method stub

      returnnull;

    }

    publiclonggetItemId(intposition) {

      // TODO Auto-generated method stub

      return0;

    }

    publicView getView(intposition, View convertView, ViewGroup parent) {

      ImageView imageview =newImageView(context);

      imageview.setLayoutParams(newGallery.LayoutParams(100,150));

      //设置image大小

      imageview.setScaleType(ImageView.ScaleType.FIT_CENTER);

      imageview.setPadding(5,5,5,5);

      imageview.setImageResource(posterID[position]);

      finalintpos = position;

      //点击galley的image的时候

      imageview.setOnTouchListener(newView.OnTouchListener() {

        publicbooleanonTouch(View v, MotionEvent event) {

          ImageView ivPoster = (ImageView) findViewById(R.id.ivPoster);

          ivPoster.setScaleType(ImageView.ScaleType.FIT_CENTER);

          ivPoster.setImageResource(posterID[pos]);

          returnfalse;

        }

      });

      returnimageview;

    }

  }

}