实例介绍
【实例截图】
【核心代码】
package com.tabhostfragment; import java.util.ArrayList; import java.util.List; import com.tabhostfragment.adapter.MainPagerAdapter; import com.tabhostfragment.dao.Initialization; import com.tabhostfragment.fragment.FourFragment; import com.tabhostfragment.fragment.OneFragment; import com.tabhostfragment.fragment.ThreeFragment; import com.tabhostfragment.fragment.TwoFragment; import com.tabhostfragment.view.DummyTabContent; import android.content.Context; import android.graphics.Color; import android.os.Bundle; import android.os.Handler; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentActivity; import android.support.v4.view.ViewPager; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.Window; import android.widget.Button; import android.widget.ImageButton; import android.widget.ImageView; import android.widget.TabHost; import android.widget.TabHost.TabContentFactory; import android.widget.TabHost.TabSpec; import android.widget.TabWidget; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends FragmentActivity implements Initialization, TabHost.OnTabChangeListener, ViewPager.OnPageChangeListener, OnClickListener { private static final String TAG = MainActivity.class.getSimpleName(); private TabHost mTabHost; private TabHost.TabSpec mTabSpec1; private TabHost.TabSpec mTabSpec2; private TabHost.TabSpec mTabSpec3; private TabHost.TabSpec mTabSpec4; private View mView1; private View mView2; private View mView3; private View mView4; private TextView mTv1, mTv2, mTv3, mTv4; private ImageView mIMG1, mIMG2, mIMG3, mIMG4; private ImageButton imgBtnAdd, imgBtnSearch; private Context mContext; private ViewPager mViewPager; private MainPagerAdapter mMainPagerAdapter; private Fragment mFragment1, mFragment2, mFragment3, mFragment4; private String mCurrentTab = "1"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_CUSTOM_TITLE); setContentView(R.layout.activity_main); getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.titlebar_main); init(); initView(); addListener(); } @Override public void init() { mContext = this; setTabAndFragment(); } @Override public void initView() { mViewPager = (ViewPager) findViewById(R.id.viewpager); imgBtnAdd = (ImageButton) findViewById(R.id.imgbtn_titlebar_main_add); imgBtnSearch = (ImageButton) findViewById(R.id.imgbtn_titlebar_main_search); mMainPagerAdapter = new MainPagerAdapter(getSupportFragmentManager(), getFragments()); mViewPager.setAdapter(mMainPagerAdapter); } @Override public void addListener() { mViewPager.setOnPageChangeListener(this); mTabHost.setOnTabChangedListener(this); imgBtnAdd.setOnClickListener(this); imgBtnSearch.setOnClickListener(this); } private void setTabAndFragment() { LayoutInflater inflater = getLayoutInflater(); mTabHost = (TabHost) findViewById(R.id.tabhost); mTabHost.setup(); TabWidget tabWidget = mTabHost.getTabWidget(); tabWidget.setDividerDrawable(null); mView1 = inflater.inflate(R.layout.tab_btn, null); mTv1 = (TextView) mView1.findViewById(R.id.tab_text); mTv1.setText("微信"); mIMG1 = (ImageView) mView1.findViewById(R.id.tab_image); mTabSpec1 = mTabHost.newTabSpec("tab1"); mTabSpec1.setIndicator(mView1); mTabSpec1.setContent(new DummyTabContent(getBaseContext())); mTabHost.addTab(mTabSpec1); mView2 = inflater.inflate(R.layout.tab_btn, null); mTv2 = (TextView) mView2.findViewById(R.id.tab_text); mIMG2 = (ImageView) mView2.findViewById(R.id.tab_image); mTv2.setText("通讯录"); mTabSpec2 = mTabHost.newTabSpec("tab2"); mTabSpec2.setIndicator(mView2); mTabSpec2.setContent(new DummyTabContent(getBaseContext())); mTabHost.addTab(mTabSpec2); mView3 = inflater.inflate(R.layout.tab_btn, null); mTv3 = (TextView) mView3.findViewById(R.id.tab_text); mIMG3 = (ImageView) mView3.findViewById(R.id.tab_image); mTv3.setText("发现"); mTabSpec3 = mTabHost.newTabSpec("tab3"); mTabSpec3.setIndicator(mView3); mTabSpec3.setContent(new DummyTabContent(getBaseContext())); mTabHost.addTab(mTabSpec3); mView4 = inflater.inflate(R.layout.tab_btn, null); mTv4 = (TextView) mView4.findViewById(R.id.tab_text); mIMG4 = (ImageView) mView4.findViewById(R.id.tab_image); mTv4.setText("我"); TabSpec mTabSpec4 = mTabHost.newTabSpec("tab4"); mTabSpec4.setIndicator(mView4); mTabSpec4.setContent(new DummyTabContent(getBaseContext())); mTabHost.addTab(mTabSpec4); setTextColorByPos(0); } private List<Fragment> getFragments() { List<Fragment> fList = new ArrayList<Fragment>(); mFragment1 = new OneFragment(); mFragment2 = new TwoFragment(); mFragment3 = new ThreeFragment(); mFragment4 = new FourFragment(); fList.add(mFragment1); fList.add(mFragment2); fList.add(mFragment3); fList.add(mFragment4); return fList; } /** * 根据不同的选中位置改变字体颜色 * * @param pos * - 被选中的tab的位置 * */ private void setTextColorByPos(int pos) { mTv1.setTextColor(Color.GRAY); mTv2.setTextColor(Color.GRAY); mTv3.setTextColor(Color.GRAY); mTv4.setTextColor(Color.GRAY); mIMG1.setImageResource(R.drawable.ahk); mIMG2.setImageResource(R.drawable.ahi); mIMG3.setImageResource(R.drawable.ahm); mIMG4.setImageResource(R.drawable.aho); switch (pos) { case 0: mTv1.setTextColor(getResources().getColor(R.color.blue)); mIMG1.setImageResource(R.drawable.ahj); break; case 1: mTv2.setTextColor(getResources().getColor(R.color.blue)); mIMG2.setImageResource(R.drawable.ahh); break; case 2: mTv3.setTextColor(getResources().getColor(R.color.blue)); mIMG3.setImageResource(R.drawable.ahl); break; case 3: mTv4.setTextColor(getResources().getColor(R.color.blue)); mIMG4.setImageResource(R.drawable.ahn); break; } } @Override public void onTabChanged(String tabId) { int pos = mTabHost.getCurrentTab(); mViewPager.setCurrentItem(pos, false); mCurrentTab = tabId; } @Override public void onPageScrollStateChanged(int state) { } @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { int pos = mViewPager.getCurrentItem(); setTextColorByPos(pos); } @Override public void onPageSelected(int position) { } @Override public void onClick(View v) { switch (v.getId()) { case R.id.imgbtn_titlebar_main_add: Toast.makeText(this, "add be clicked .. ", Toast.LENGTH_SHORT).show(); break; case R.id.imgbtn_titlebar_main_search: Toast.makeText(this, "search be clicked .. ", Toast.LENGTH_SHORT).show(); break; } } }
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