vcD4KPHA+yOfNvKOsYW5kcm9pZNbQyrnTw1ZpZXdQYWdlcr/J0tTKtc/WtuC49tKzw+a7rLav0Ke5+6GiPC9wPgo8cD48YnI+CjwvcD4KPHA+PC9wPgo8cHJlIGNsYXNzPQ==”brush:java;”>public class TvControlActivity extends Activity {
private TvControlActivity tvControlActivity = this;
// 需要滑動的頁卡
private View view1;
private View view2;
private View view3;
private ArrayList views;
// 多頁面滑動切換
private ViewPager viewPager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_tv_control);
viewPager = (ViewPager) findViewById(R.id.main_viewpager);
viewPager.setOnPageChangeListener(null);
initView();
/**
* 這是重寫PagerAdapter的一個方法，我們還可以這樣做
*/
PagerAdapter paAdapter = new PagerAdapter() {
@Override
public boolean isViewFromObject(View arg0, Object arg1) {
// TODO Auto-generated method stub
return arg0 == arg1;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return views.size();
}
//銷毀
@Override
public void destroyItem(ViewGroup container, int position,
Object object) {
// TODO Auto-generated method stub
container.removeView(views.get(position));
}
// @Override
// public void destroyItem(View container, int position, Object object) {
// // TODO Auto-generated method stub
// ((ViewPager) container).removeView(views.get(position));
//
// }
@Override
public int getItemPosition(Object object) {
// TODO Auto-generated method stub
return super.getItemPosition(object);
}
//實例化
@Override
public Object instantiateItem(ViewGroup container, int position) {
// TODO Auto-generated method stub
container.addView(views.get(position));
return views.get(position);
}
// @Override
// public Object instantiateItem(View container, int position) {
// // TODO Auto-generated method stub
// ((ViewPager) container).addView(views.get(position));
// return views.get(position);
// }
};
viewPager.setAdapter(paAdapter);
}
/**
* 加載要顯示的頁卡
*/
private void initView() {
// TODO Auto-generated method stub
LayoutInflater inflater = getLayoutInflater().from(this);
view1 = inflater.inflate(R.layout.tv_control, null);
view2 = inflater.inflate(R.layout.tv_control_number, null);
// 將要分頁顯示的View裝入數組中
views = new ArrayList();
views.add(view1);
views.add(view2);
｝
}
在實現adapter的時候一定要重寫以下四個方法，其他方法的話也可以重寫
instantiateItem(ViewGroup container, int position) getItemPosition(Object object) destroyItem(ViewGroup container, int position,Object object) isViewFromObject(View arg0, Object arg1)
需要註意的是佈局文件中需要這樣寫
組件是用來顯示左右滑動的界面的，如果不加載xml佈局文件，他是不會顯示內容的
android:id="@+id/main_viewpager"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center" >