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我有一个viewPager，它显示了使用AsyncTask从JSON中获取的一些图像和文本。我的viewPager完美地工作，因为它应该。但现在我需要一个按钮来滑动页面。所以当我点击那个按钮时，它应该移动到下一页，就像当我们滑动页面并移动到下一页一样。基本上我需要移动到下一个页面而不滑动，但是通过点击一个按钮。我怎样才能做到这一点。使用按钮来执行viewPager滑动
注意：我已经可以滑动页面并进入下一页。
以下是具有viewPager
public class HomeViewFragment extends Fragment {
private Activity activity;
private int i = 0;
private ImageLoader imageLoader;
private Home home;
private Home now_showing;
private CommonVariable commonVariable;
private HorizontalListView horizontalListView;
private LazyAdapter adapter;
private ViewPager pager;
private ViewPageAdapter adapter1;
private ProgressDialog dialog;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.home_view_fragment, container,
false);
horizontalListView = (HorizontalListView) view.findViewById(R.id.horizontal_listview);
pager = (ViewPager) view.findViewById(R.id.home_nowshowing);
dialog = new ProgressDialog(HomeViewFragment.this.getActivity());
dialog.setMessage("Loading Home Page. Please Wait.");
dialog.setCancelable(true);
activity = this.getActivity();
commonVariable = (CommonVariable) activity.getApplication();
imageLoader = new ImageLoader(activity);
new BackGround().execute();
return view;
}
public class BackGround extends AsyncTask<Void, Void, Void> {
@Override
protected Void doInBackground(Void... params) {
home = JSONServices.getHomeListContent();
now_showing = JSONServices.getHomeListContent();
return null;
}
@Override
/* check again */
protected void onPostExecute(Void result) {
commonVariable.setHomeListContent(home);
commonVariable.setHomeListContent(now_showing);
adapter = new LazyAdapter(home.getHome(), activity,Element.HORIZONTAL_MENU.getType());
adapter1 = new ViewPageAdapter(home.getNowShowing(),Element.NOW_SHOWING.getType(), activity);
horizontalListView.setAdapter(adapter);
pager.setAdapter(adapter1);
dialog.dismiss();
super.onPostExecute(result);
}
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
dialog.show();
super.onPreExecute();
}
}
}
布局，其中我宣布viewpager
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_margin="5dp"
android:layout_weight="6"
android:background="@drawable/frame_background"
android:orientation="horizontal"
android:padding="5dp" >
<android.support.v4.view.ViewPager
android:id="@+id/home_nowshowing"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:inAnimation="@anim/fade_in_slider"
android:outAnimation="@anim/fade_out_slider" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_margin="5dp"
android:layout_weight="5"
android:background="@drawable/frame_background"
android:orientation="horizontal" >
<com.fortuna.cinemalk.customwidgets.HorizontalListView
android:id="@+id/horizontal_listview"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
</LinearLayout>
的布局，使用viewpager布局
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="@color/grey"
android:padding="2dp">
<RelativeLayout
android:layout_width="380dp"
android:layout_height="wrap_content"
android:background="@color/grey" >
<ImageView
android:id="@+id/image2"
android:layout_width="match_parent"
android:layout_height="245dp"
android:scaleType="fitXY"
android:src="@drawable/app" />
<Button
android:id="@+id/nowplayingButton"
android:layout_width="212dp"
android:layout_height="58dp"
android:layout_alignBottom="@+id/image2"
android:layout_alignParentRight="true"
android:layout_marginBottom="18dp"
android:layout_marginRight="5dp"
android:background="@drawable/nowshowing_button" />
<TextView
android:id="@+id/nowplay_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="250dp"
android:textColor="#000000"
android:textSize="18dp"
android:textStyle="bold" />
</RelativeLayout>
</LinearLayout>