以下是我的XML,并将我的PagerTitleStrip嵌入到ViewPager中:
<android.support.v4.view.ViewPager
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/view_pager"
android:layout_width="match_parent"
android:layout_height="500dp"
android:scaleType="centerCrop">
<android.support.v4.view.PagerTitleStrip
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@color/white"
android:layout_gravity="top" />
</android.support.v4.view.ViewPager>
这是我的自定义PagerAdapter类。
public class CustomPagerAdapter extends PagerAdapter {
private int[] image_resources = {
R.drawable.1,
R.drawable.2,
R.drawable.3
};
private Context ctx;
private LayoutInflater layoutInflater;
public CustomPagerAdapter(Context ctx) {
this.ctx = ctx;
}
@Override
public int getCount() {
return image_resources.length;
}
@Override
public boolean isViewFromObject(View view, Object o) {
return (view == (RelativeLayout) o);
}
@Override
public CharSequence getPageTitle(int position) {
return "Title Here";
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
layoutInflater = (LayoutInflater) ctx.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View item_view = layoutInflater.inflate(R.layout.pager_item, container, false);
ImageView imageview = (ImageView) item_view.findViewById(R.id.image_view);
imageview.setImageResource(image_resources[position]);
container.addView(item_view);
return item_view;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView((RelativeLayout) object);
}
}
当前,getPageTitle仅返回常量String。如何为每个图像返回唯一的标题?
最佳答案
做
@Override
public CharSequence getPageTitle(int position) {
return "Page: "+position;
}
只需使用
item
中的位置从ArrayList
中获取getPageTitle(...)