On 2014년 7월 14일 월요일
뷰페이저(ViewPager)는
예전 쓰던 기능을 보면 ViewFliper, GalleryView, Horizontal ScrollView, 버튼 화면전환 등 많이 있지만,
쓰기 편한 방법이 ViewPager(터지로 화면 좌우전환효과)
1. MainActivity를 추가하시고
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| public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ViewPager viewPager = (ViewPager) findViewById(R.id.view_pager); ImageAdapter adapter = new ImageAdapter(this); viewPager.setAdapter(adapter); }} |
레이아웃
2.activity_main.xml
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| android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity" > <android.support.v4.view.ViewPager android:id="@+id/view_pager" android:layout_width="match_parent" android:layout_height="match_parent" /> </RelativeLayout> |
3.ViewPager에 해당하는 Adapter 클래스를 구현
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| public class ImageAdapter extends PagerAdapter { Context context; private int[] GalImages = new int[] { R.drawable.one, R.drawable.two, R.drawable.three }; ImageAdapter(Context context){ this.context=context; } @Override public int getCount() { return GalImages.length; } @Override public boolean isViewFromObject(View view, Object object) { return view == ((ImageView) object); } @Override public Object instantiateItem(ViewGroup container, int position) { ImageView imageView = new ImageView(context); int padding = context.getResources().getDimensionPixelSize(R.dimen.padding_medium); imageView.setPadding(padding, padding, padding, padding); imageView.setScaleType(ImageView.ScaleType.CENTER_INSIDE); imageView.setImageResource(GalImages[position]); ((ViewPager) container).addView(imageView, 0); return imageView; } @Override public void destroyItem(ViewGroup container, int position, Object object) { ((ViewPager) container).removeView((ImageView) object); }}하면 끝!   |
