Android Tab布局如何从第二个Tab开始

Question

大家好http://www.androidhive.info/2013/10/android-tab-layout-with-swipeable-views-1/

，我希望应用程序以"游戏"标签开始，而不是"最高评级"!，你可以帮助我在这:)

这是我的代码

package com.scorebeyond.android.tabswithswipeexample;
import com.scorebeyond.android.tabswithswipeexample.adapter.TabsPagerAdapter;
import android.app.ActionBar;
import android.app.ActionBar.Tab;
import android.app.ActionBar.TabListener;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.ViewPager;
import android.view.Menu;
public class MainActivity extends FragmentActivity implements TabListener {
    private ViewPager viewPager;
    private TabsPagerAdapter mAdapter;
    private ActionBar actionBar;
    // Tab Titles
    private String[] tabs = { "Top Rated", "Games", "Movies" };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        // Initialize
        viewPager = (ViewPager) findViewById(R.id.pager);
        viewPager.setCurrentItem(-1);
        actionBar = getActionBar();
        mAdapter = new TabsPagerAdapter(getSupportFragmentManager());
        viewPager.setAdapter(mAdapter);
        actionBar.setHomeButtonEnabled(false);
        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
        // Adding Tabs
        for (String tab_name : tabs) {
            actionBar.addTab(actionBar.newTab().setText(tab_name)
                    .setTabListener(this));
        }
        viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
            @Override
            public void onPageSelected(int position) {
                // on changing the page
                // make respected tab selected
                actionBar.setSelectedNavigationItem(position);
            }
            @Override
            public void onPageScrolled(int arg0, float arg1, int arg2) {
                // TODO Auto-generated method stub
            }
            @Override
            public void onPageScrollStateChanged(int arg0) {
                // TODO Auto-generated method stub
            }
        });
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
    @Override
    public void onTabReselected(Tab tab, FragmentTransaction ft) {
        // TODO Auto-generated method stub
    }
    @Override
    public void onTabSelected(Tab tab, FragmentTransaction ft) {
        // On tab selected
        // show respected fragment view
        viewPager.setCurrentItem(tab.getPosition());
    }
    @Override
    public void onTabUnselected(Tab tab, FragmentTransaction ft) {
        // TODO Auto-generated method stub
    }
}

thx很多

Answer 1

你应该使用(在你的onCreate方法的末尾):

操作栏selectTab方法，使用您之前添加的选项卡作为参数

或

按位置选择选项卡项使用操作栏setSelectedNavigationItem

actionBar.setSelectedNavigationItem (1),

Answer 2

在onCreate()方法中使用Android TabHost及其方法setCurrentTab()