TabFragmentPagerAdapter.java

package com.wangbb.naruto.app.adapter;

import android.content.Context;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;

import com.wangbb.naruto.app.view.IconPagerAdapter;

public class TabFragmentPagerAdapter extends FragmentStatePagerAdapter
        implements IconPagerAdapter {
    private Context mContext;
    private Class[] fragments;
    private String[] text;
    private int[] icon;
    private int iLayoutResId;
    private int iTextResId;
    private int iIconLocation;

    // private Fragment[] fragmentArr;

    /**
     * 没有icon的tab
     *
     * @param fm
     * @param context
     * @param fragments   fragment数组
     * @param text        tab文案数组
     * @param layoutResId layout ID
     * @param textResId   testview ID
     */
    public TabFragmentPagerAdapter(FragmentManager fm, Context context,
                                   Class[] fragments, String[] text, int layoutResId, int textResId) {
        super(fm);
        mContext = context;
        this.fragments = fragments;
        this.text = text;
        this.iLayoutResId = layoutResId;
        this.iTextResId = textResId;
    }

    /**
     * 有icon的tab
     *
     * @param fm
     * @param context
     * @param fragments    fragment数组
     * @param text         tab文案数组
     * @param icon         tab 图标数组
     * @param layoutResId  layout ID
     * @param textResId    testview ID
     * @param iconLocation icon位置：1-left，2-top，3-right，4-bottom
     */
    public TabFragmentPagerAdapter(FragmentManager fm, Context context,
                                   Class[] fragments, String[] text, int[] icon, int layoutResId,
                                   int textResId, int iconLocation) {
        super(fm);
        mContext = context;
        this.fragments = fragments;
        this.text = text;
        this.icon = icon;
        this.iLayoutResId = layoutResId;
        this.iTextResId = textResId;
        this.iIconLocation = iconLocation;
    }

    /**
     * 代码实现tab布局
     *
     * @param fm
     * @param context
     * @param fragments
     * @param text
     * @param icon
     * @param iconLocation
     */
    public TabFragmentPagerAdapter(FragmentManager fm, Context context,
                                   Class[] fragments, String[] text, int[] icon, int iconLocation) {
        super(fm);
        mContext = context;
        this.fragments = fragments;
        this.text = text;
        this.icon = icon;
        this.iIconLocation = iconLocation;
    }

    @Override
    public Fragment getItem(int position) {
        // return TestFragment.newInstance(text[position % text.length]);
        Fragment mFragment = null;
        if (fragments != null) {
            mFragment = Fragment.instantiate(mContext,
                    fragments[position].getName(), null);
        }
        return mFragment;
    }

    @Override
    public CharSequence getPageTitle(int position) {

        return text[position % text.length].toUpperCase();
    }

    @Override
    public int getCount() {
        return text.length;
    }

    @Override
    public int getIconResId(int index) {
        if (icon != null) {
            return icon[index];
        }
        return 0;// 没有图标
    }

    @Override
    public int getLayoutResId() {
        return iLayoutResId;
    }

    @Override
    public int getTextResId() {
        return iTextResId;
    }

    @Override
    public int getIconLocation() {
        return iIconLocation;
    }

}