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源代码实现:

package com.example.actionbardemo2;

import android.app.ActionBar;
import android.app.ActionBar.Tab;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.Menu;
import android.view.MenuItem;

public class MainActivity extends FragmentActivity implements
		ActionBar.TabListener {

	private dFragment1 fragment1 = new dFragment1();
	private dFragment2 fragment2 = new dFragment2();
	private dFragment3 fragment3 = new dFragment3();

	private static final int TAB_INDEX_COUNT = 2;

	private static final int TAB_INDEX_ONE = 0;
	private static final int TAB_INDEX_TWO = 1;

	private ViewPager viewPager;
	private myFrgamentPagerAdapter viewPagerAdapter;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

		// 1 设置 ViewPager
		setViewPager();
		
		// 2 获取ActionBar
		getActionBarMethod();

		

	}

	// 1 设置 ViewPager
	private void setViewPager() {

		viewPagerAdapter = new myFrgamentPagerAdapter(getSupportFragmentManager());
		
		viewPager = (ViewPager)this.findViewById(R.id.viewpager);
		viewPager.setAdapter(viewPagerAdapter);
		viewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener()
		{
			@Override
			public void onPageSelected(int position) {
				// TODO Auto-generated method stub
				super.onPageSelected(position);
				
				final ActionBar actionBar = getActionBar();
				actionBar.setSelectedNavigationItem(position);
				
			}
			
			@Override
			public void onPageScrollStateChanged(int state) {
				// TODO Auto-generated method stub
				super.onPageScrollStateChanged(state);
			}
			
		});
		
	}

	// 2 获取ActionBar
	private void getActionBarMethod() {
		//获取ActionBar
		ActionBar actionBar = getActionBar();

		actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

		// 设置actionBar的颜色
		Drawable draw = new ColorDrawable(Color.GREEN);
		actionBar.setBackgroundDrawable(draw);

		// 设置ActionBar tab
		ActionBar.Tab tab = actionBar.newTab();
		tab.setText("核心产品");
		tab.setIcon(draw);
		tab.setTabListener(this);
		actionBar.addTab(tab);

		tab = actionBar.newTab();
		tab.setText("平台产品");
		tab.setIcon(draw);
		tab.setTabListener(this);
		actionBar.addTab(tab);

		// 去掉左側小箭头右边的图标:
		// 代表 左側要有一个箭头
		actionBar.setDisplayHomeAsUpEnabled(true);
		// 代表 禁用Logo
		actionBar.setDisplayUseLogoEnabled(false);
		// 使用 透明色来取代原有的图标,相当于 不显示
		actionBar.setIcon(new ColorDrawable(Color.TRANSPARENT));
	}

	
	/**
	 * ActionBar action 点击事件的处理:
	 * */
	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		// TODO Auto-generated method stub
		switch (item.getItemId()) {
		case android.R.id.home:
			finish();
			return true;
		}

		return super.onOptionsItemSelected(item);
	}

	/**
	 * ActionTab 的 点击事件:
	 * 
	 * */
	@Override
	public void onTabReselected(Tab arg0, android.app.FragmentTransaction arg1) {
		// TODO Auto-generated method stub

	}

	@Override
	public void onTabSelected(Tab tab, android.app.FragmentTransaction arg1) {
		// TODO Auto-generated method stub
//		依据ActionBar Tab 的 位置 index  来设置 ViewPager 的 当前的显示页。

viewPager.setCurrentItem(tab.getPosition()); } @Override public void onTabUnselected(Tab arg0, android.app.FragmentTransaction arg1) { // TODO Auto-generated method stub } /** * ActionBar 的样式,设置。 * * */ @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; } //TODO 2 Viewpager 的自己定义类: class myFrgamentPagerAdapter extends FragmentPagerAdapter { public myFrgamentPagerAdapter(FragmentManager fm) { super(fm); // TODO Auto-generated constructor stub } @Override public Fragment getItem(int position) { // TODO 设置 返回的数据 switch (position) { case TAB_INDEX_ONE: return fragment1; case TAB_INDEX_TWO: return fragment2; } throw new IllegalStateException("No fragment at position " + position); } @Override public int getCount() { // TODO Auto-generated method stub return TAB_INDEX_COUNT; } } }



转载于:https://www.cnblogs.com/jhcelue/p/6730162.html

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