安卓 TabLayout+ViewPager实现滑动Tab效果

来源：互联网发布：淘宝卖家在哪里拿货编辑：程序博客网时间：2024/05/16 22:36

主函数:

public class MainActivity extends FragmentActivity {    private ArrayList<Fragment> datas;    private ViewPager viewpager;    private SendAdapter adapter;    private TabLayout tablayout;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        datas = new ArrayList<>();        datas.add(new SendFragment());        datas.add(new CallHistoryFragment());        datas.add(new ContactPersonFragment());        datas.add(new MessageFragment());        viewpager = (ViewPager) findViewById(R.id.viewpager);//绑定viewpager        tablayout = (TabLayout) findViewById(R.id.tablayout);//绑定tablayout        adapter = new SendAdapter(getSupportFragmentManager(), datas);//初始化fragment类型adapter,datas为adapter构造函数参数        viewpager.setAdapter(adapter);//将adapter加入viewpager中        tablayout.setTabTextColors(Color.BLUE,Color.GREEN);//加入title选择和被选择的颜色,前面为未点击的颜色,后面为点击后的颜色        tablayout.setupWithViewPager(viewpager);//将tablayout与viewpager建立关系    }

}

Adapter 函数 (Fragment类型)

public class SendAdapter extends FragmentPagerAdapter {    private ArrayList<Fragment> datas;//因为要用将fragment加入到viewpager之中,所以内容为fragment类型的集合    String title1 = "拨号";    String title2 = "最近通话";    String title3 = "联系人";    String title4 = "短信";    String [] titles = {title1,title2,title3,title4};//设置底部tablayoutout显示文字    public SendAdapter(FragmentManager fm, ArrayList<Fragment> datas) {//设置构造函数,将fragment传入到viewpager中        super(fm);        this.datas = datas;    }    @Override    public Fragment getItem(int position) {        return datas.get(position);    }    @Override    public int getCount() {        return datas.size();    }    @Override//tablayout和viewpager结合之后,创建底部title使用的方法    public CharSequence getPageTitle(int position) {        return titles[position];    }}

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