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我的应用程序使用带有 5 个滑动选项卡的 ViewPager。在大型设备和横向运行应用程序时,我想在我的 ViewPager 上扩展 2 个片段或 2 个标签页,在较小的设备或纵向视图上运行时,我想在我的 ViewPager 上扩展 1 个片段或 1 个标签页。此外,它应该仍然能够像我在 ViewPager 上显示单个片段时通常那样滑动浏览所有选项卡。

我在扩展片段的 CourseFragment 类中初始化并扩展了 ViewPager:

ViewPager mViewPager = (ViewPager) getView().findViewById(
            R.id.pagerYear);

    InfoTechPageAdapter infoTechPageAdapter = new InfoTechPageAdapter(
                getChildFragmentManager());
        mViewPager.setOffscreenPageLimit(5);
        mViewPager.setAdapter(infoTechPageAdapter);

我的 InfoTechPageAdapter 扩展了 FragmentStatePagerAdapter:

package com.usjr.sss.adapter;

import com.usjr.sss.fragment.InfoTechFirstYearFragment;
import com.usjr.sss.fragment.InfoTechFourthYearFragment;
import com.usjr.sss.fragment.InfoTechSecondYearFragment;
import com.usjr.sss.fragment.InfoTechThirdYearFragment;
import com.usjr.sss.fragment.SubmitSubjectFragment;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;

public class InfoTechPageAdapter extends FragmentStatePagerAdapter {

public InfoTechPageAdapter(FragmentManager fm) {
    super(fm);
}

@Override
public Fragment getItem(int pos) {
    Fragment mFragment;

    switch (pos) {

    case 0:
        mFragment = new InfoTechFirstYearFragment();
        mFragment.setArguments(null);
        return mFragment;
    case 1:
        mFragment = new InfoTechSecondYearFragment();
        mFragment.setArguments(null);
        return mFragment;
    case 2:
        mFragment = new InfoTechThirdYearFragment();
        mFragment.setArguments(null);
        return mFragment;
    case 3:
        mFragment = new InfoTechFourthYearFragment();
        mFragment.setArguments(null);
        return mFragment;
    case 4:
        mFragment = new SubmitSubjectFragment();
        mFragment.setArguments(null);
        return mFragment;

    default:
        return null;

    }

}// end getItem

@Override
public int getCount() {

    return 5;
}// end getCount

@Override
public CharSequence getPageTitle(int pos) {
    // Locale l = Locale.getDefault();
    switch (pos) {
    case 0:
        return "FIRST YEAR";
    case 1:
        return "SECOND YEAR";
    case 2:
        return "THIRD YEAR";
    case 3:
        return "FOURTH YEAR";
    case 4:
        return "SUBMIT";

    }
    return null;
}

}
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1 回答 1

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在 PageAdapter 类中覆盖。

@Override 
public float getPageWidth(int position) { 
return(0.5f); 
} 
于 2014-11-20T08:03:36.890 回答