viewpager 实现tab-----(viewpager + fragmentpageradapter)
推荐使用：
/* * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) * * This file is part of FileExplorer. * * FileExplorer is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * FileExplorer is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with SwiFTP. If not, see <http://www.gnu.org/licenses/>. */ package com.android.fileexplorer; import android.app.ActionBar; import android.app.ActionBar.Tab; import android.app.Activity; import android.app.Fragment; import android.app.FragmentManager; import android.app.FragmentTransaction; import android.app.Service; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.ServiceConnection; import android.content.SharedPreferences; import android.content.res.Configuration; import android.content.res.Resources.Theme; import android.graphics.Color; import android.graphics.drawable.Drawable; import android.os.Build; import android.os.Bundle; import android.os.IBinder; import android.preference.PreferenceManager; import android.support.v13.app.FragmentPagerAdapter; import android.support.v4.view.ViewPager; import android.util.DisplayMetrics; import android.util.Log; import android.util.TypedValue; import android.view.ActionMode; import android.view.View; import android.view.View.OnClickListener; import android.view.Window; import android.view.WindowManager; import android.widget.LinearLayout; import android.widget.TextView; import java.util.ArrayList; import java.util.List; public class FileExplorerTabActivity extends Activity implements OnClickListener { private static final String INSTANCESTATE_TAB = "tab"; private static final int DEFAULT_OFFSCREEN_PAGES = 2; LinearLayout mActionBarView; TextView category, list, control; ViewPager mViewPager; // TabsAdapter mTabsAdapter; FragAdapter mFragAdapter; ActionMode mActionMode; List<Fragment> fragments = new ArrayList<Fragment>(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setTheme(R.style.AppBaseTheme); setContentView(R.layout.fragment_pager); mViewPager = (ViewPager) findViewById(R.id.pager); mViewPager.setOffscreenPageLimit(DEFAULT_OFFSCREEN_PAGES); /* PRIZE-Support ImmersiveMode-liguizeng-2015-4-9-start */ getWindow().setStatusBarColor(Color.parseColor("#394652")); getWindow().addFlags( WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS); // int visibility = getWindow().getDecorView().getVisibility(); // getWindow().getDecorView().setSystemUiVisibility(visibility^View.SYSTEM_UI_FLAG_LAYOUT_STABLE // | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN // | View.SYSTEM_UI_FLAG_FULLSCREEN // | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY); // getActionBar().show(); /* PRIZE-Support ImmersiveMode-liguizeng-2015-4-9-end */ final ActionBar bar = getActionBar(); // bar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS); bar.setDisplayOptions(0, ActionBar.DISPLAY_SHOW_TITLE | ActionBar.DISPLAY_SHOW_HOME); bar.setCustomView(R.layout.fileexplorer_actionbar); bar.setDisplayShowCustomEnabled(true); mActionBarView = (LinearLayout) bar.getCustomView(); category = (TextView) mActionBarView.findViewById(R.id.title_category); category.setOnClickListener(this); list = (TextView) mActionBarView.findViewById(R.id.title_listview); list.setOnClickListener(this); control = (TextView) mActionBarView.findViewById(R.id.title_control); control.setOnClickListener(this); Intent service = new Intent(this, FileExplorerService.class); getApplicationContext().bindService(service, sc, Service.BIND_AUTO_CREATE); // mTabsAdapter = new TabsAdapter(this, mViewPager); // Tab category, sd, remote; // category = bar.newTab().setText(R.string.tab_category); // sd = bar.newTab().setText(R.string.tab_sd); // remote = bar.newTab().setText(R.string.tab_remote); mFragAdapter = new FragAdapter(getFragmentManager(), fragments); fragments.add(new FileCategoryActivity()); fragments.add(new FileViewActivity()); fragments.add(new ServerControlActivity()); mViewPager.setAdapter(mFragAdapter); mViewPager.setOnPageChangeListener(mFragAdapter); mViewPager.setCurrentItem(0); mFragAdapter.onPageSelected(0); // mTabsAdapter.addTab(category, FileCategoryActivity.class, null); // mTabsAdapter.addTab(sd, FileViewActivity.class, null); // mTabsAdapter.addTab(remote, ServerControlActivity.class, null); // bar.setSelectedNavigationItem(PreferenceManager.getDefaultSharedPreferences(this) // .getInt(INSTANCESTATE_TAB, Util.CATEGORY_TAB_INDEX)); // bar.setSelectedNavigationItem(0); // mViewPager.setAdapter(new TabsAdapter(getFragmentManager())); // tabs.setViewPager(mViewPager); // setTabsValue(); } private FileExplorerService serviceBinder; private ServiceConnection sc = new ServiceConnection() { @Override public void onServiceDisconnected(ComponentName name) { serviceBinder = null; } @Override public void onServiceConnected(ComponentName name, IBinder service) { serviceBinder = ((FileExplorerService.MyBinder) service) .getService(); FileOperationHelper.setService(serviceBinder); setService(serviceBinder); } }; public FileExplorerService getService() { return serviceBinder; } protected void setService(FileExplorerService service) { } /* * private void setTabsValue() { * * // TODO Auto-generated method stub * mTabsAdapter.setSelectedTextColor(Color.parseColor("#45c01a")); } */ @Override public void onSaveInstanceState(Bundle savedInstanceState) { super.onSaveInstanceState(savedInstanceState); } @Override public void onRestoreInstanceState(Bundle savedInstanceState) { super.onRestoreInstanceState(savedInstanceState); } @Override protected void onPause() { super.onPause(); /* * SharedPreferences.Editor editor = PreferenceManager * .getDefaultSharedPreferences(this).edit(); * editor.putInt(INSTANCESTATE_TAB, getActionBar() * .getSelectedNavigationIndex()); editor.commit(); */ } @Override public void onConfigurationChanged(Configuration newConfig) { if (mViewPager.getCurrentItem() == Util.CATEGORY_TAB_INDEX) { FileCategoryActivity categoryFragement = (FileCategoryActivity) mFragAdapter .getItem(Util.CATEGORY_TAB_INDEX); if (categoryFragement.isHomePage()) { reInstantiateCategoryTab(); } else { categoryFragement.setConfigurationChanged(true); } } super.onConfigurationChanged(newConfig); } public void reInstantiateCategoryTab() { mFragAdapter.destroyItem(mViewPager, Util.CATEGORY_TAB_INDEX, mFragAdapter.getItem(Util.CATEGORY_TAB_INDEX)); mFragAdapter.instantiateItem(mViewPager, Util.CATEGORY_TAB_INDEX); } @Override public void onBackPressed() { IBackPressedListener backPressedListener = (IBackPressedListener) mFragAdapter .getItem(mViewPager.getCurrentItem()); if (!backPressedListener.onBack()) { super.onBackPressed(); } } public interface IBackPressedListener { /** * 处理back事件。 * * @return True: 表示已经处理; False: 没有处理，让基类处理。 */ boolean onBack(); } public void setActionMode(ActionMode actionMode) { mActionMode = actionMode; } public ActionMode getActionMode() { return mActionMode; } public Fragment getFragment(int tabIndex) { return mFragAdapter.getItem(tabIndex); } /** * This is a helper class that implements the management of tabs and all * details of connecting a ViewPager with associated TabHost. It relies on a * trick. Normally a tab host has a simple API for supplying a View or * Intent that each tab will show. This is not sufficient for switching * between pages. So instead we make the content part of the tab host 0dp * high (it is not shown) and the TabsAdapter supplies its own dummy view to * show as the tab content. It listens to changes in tabs, and takes care of * switch to the correct paged in the ViewPager whenever the selected tab * changes. */ /* public static class TabsAdapter extends FragmentPagerAdapter implements ActionBar.TabListener, ViewPager.OnPageChangeListener { private final Context mContext; private final ActionBar mActionBar; private final ViewPager mViewPager; private final ArrayList<TabInfo> mTabs = new ArrayList<TabInfo>(); static final class TabInfo { private final Class<?> clss; private final Bundle args; private Fragment fragment; TabInfo(Class<?> _class, Bundle _args) { clss = _class; args = _args; } } public TabsAdapter(Activity activity, ViewPager pager) { super(activity.getFragmentManager()); mContext = activity; mActionBar = activity.getActionBar(); mViewPager = pager; mViewPager.setAdapter(this); mViewPager.setOnPageChangeListener(this); } public void addTab(ActionBar.Tab tab, Class<?> clss, Bundle args) { TabInfo info = new TabInfo(clss, args); tab.setTag(info); tab.setTabListener(this); mTabs.add(info); mActionBar.addTab(tab); notifyDataSetChanged(); } @Override public int getCount() { return mTabs.size(); } @Override public Fragment getItem(int position) { TabInfo info = mTabs.get(position); if (info.fragment == null) { info.fragment = Fragment.instantiate(mContext, info.clss.getName(), info.args); } return info.fragment; } @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { } @Override public void onPageSelected(int position) { mActionBar.setSelectedNavigationItem(position); } @Override public void onPageScrollStateChanged(int state) { } @Override public void onTabSelected(Tab tab, FragmentTransaction ft) { Object tag = tab.getTag(); for (int i = 0; i < mTabs.size(); i++) { if (mTabs.get(i) == tag) { mViewPager.setCurrentItem(i); } } if (!tab.getText().equals(mContext.getString(R.string.tab_sd))) { ActionMode actionMode = ((FileExplorerTabActivity) mContext) .getActionMode(); if (actionMode != null) { actionMode.finish(); } } } @Override public void onTabUnselected(Tab tab, FragmentTransaction ft) { } @Override public void onTabReselected(Tab tab, FragmentTransaction ft) { } }*/ public class FragAdapter extends FragmentPagerAdapter implements ViewPager.OnPageChangeListener { private List<Fragment> fragments; public FragAdapter(FragmentManager fm) { super(fm); } public FragAdapter(FragmentManager fm, List<Fragment> fragments) { super(fm); this.fragments = fragments; } @Override public Fragment getItem(int position) { return fragments.get(position); } @Override public int getCount() { return fragments.size(); } @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { } @Override public void onPageSelected(int position) { switch (position) { case 0: category.setTextColor(Color.WHITE); list.setTextColor(Color.GRAY); control.setTextColor(Color.GRAY); break; case 1: category.setTextColor(Color.GRAY); list.setTextColor(Color.WHITE); control.setTextColor(Color.GRAY); break; case 2: category.setTextColor(Color.GRAY); list.setTextColor(Color.GRAY); control.setTextColor(Color.WHITE); break; default: break; } } @Override public void onPageScrollStateChanged(int state) { } } @Override protected void onDestroy() { getApplicationContext().unbindService(sc); super.onDestroy(); } @Override public void onClick(View v) { switch (v.getId()) { case R.id.title_category: mViewPager.setCurrentItem(0); break; case R.id.title_listview: mViewPager.setCurrentItem(1); ActionMode actionMode = getActionMode(); if (actionMode != null) { actionMode.finish(); } break; case R.id.title_control: mViewPager.setCurrentItem(2); break; default: break; } } public void setCurrentPage(int index) { if (mViewPager != null) { mViewPager.setCurrentItem(index); } } public int getCurrentPage() { if (mViewPager != null) { mViewPager.getCurrentItem(); } return 0; } }
