Android -------------------- source code implementation for switching between ActionBar and ViewPager and ActionTab

Android -------------------- source code implementation for switching between ActionBar and ViewPager and ActionTab

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Source code implementation:

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.ap P. fragmentPagerAdapter; import android. support. v4.view. viewPager; import android. view. menu; import android. view. menuItem; public class MainActivity extends FragmentActivity implementsActionBar. tabListener {private partition fragment1 = new partition (); private dFragment2 fragment2 = new dFragment2 (); private partition fragment3 = new dFragment3 (); private static final int TAB_INDEX_COUNT = 2; private s Tatic final int TAB_INDEX_ONE = 0; private static final int TAB_INDEX_TWO = 1; private ViewPager viewPager; private myFrgamentPagerAdapter viewPagerAdapter; @ Overrideprotected void onCreate (Bundle savedInstanceState. onCreate (savedInstanceState); setContentView (R. layout. activity_main); // 1 sets ViewPagersetViewPager (); // 2 gets ActionBargetActionBarMethod ();} // 1 sets ViewPagerprivate void setViewPager () {ViewPagerAdapter = new myFrgamentPagerAdapter (getSupportFragmentManager (); viewPager = (ViewPager) this. findViewById (R. id. viewpager); viewPager. setAdapter (viewPagerAdapter); viewPager. setOnPageChangeListener (new ViewPager. simpleOnPageChangeListener () {@ Overridepublic void onPageSelected (int position) {// TODO Auto-generated method stubsuper. onPageSelected (position); final ActionBar actionBar = getA CtionBar (); actionBar. setSelectedNavigationItem (position) ;}@ Overridepublic void onPageScrollStateChanged (int state) {// TODO Auto-generated method stubsuper. onPageScrollStateChanged (state) ;}}) ;}// 2 get ActionBarprivate void getActionBarMethod () {// get ActionBarActionBar actionBar = getActionBar (); actionBar. setNavigationMode (ActionBar. NAVIGATION_MODE_TABS); // sets the actionBar color Drawable draw = new ColorDraw. Able (Color. GREEN); actionBar. setBackgroundDrawable (draw); // sets the ActionBar tabActionBar. tab tab = actionBar. newTab (); tab. setText ("core products"); tab. setIcon (draw); tab. setTabListener (this); actionBar. addTab; tab = actionBar. newTab (); tab. setText ("platform product"); tab. setIcon (draw); tab. setTabListener (this); actionBar. addTab; // remove the icon on the right of the Small arrow on the left: // an actionBar on the left. setDisplayHomeAsUpEnabled (true); // indicates that LogoactionBa is disabled. R. setDisplayUseLogoEnabled (false); // use a transparent color to replace the original icon, which is equivalent to not displaying the actionBar. setIcon (new ColorDrawable (Color. TRANSPARENT);}/*** ActionBar action Click Event Processing: **/@ Overridepublic boolean onOptionsItemSelected (MenuItem item) {// TODO Auto-generated method stubswitch (item. getItemId () {case android. r. id. home: finish (); return true;} return super. onOptionsItemSelected (item);}/*** ActionTab Click Event: ***/@ Overrid Epublic void onTabReselected (Tab arg0, android. app. fragmentTransaction arg1) {// TODO Auto-generated method stub} @ Overridepublic void onTabSelected (Tab tab, android. app. fragmentTransaction arg1) {// TODO Auto-generated method stub // set the current display page of ViewPager Based on the index of the ActionBar Tab. ViewPager. setCurrentItem (tab. getPosition () ;}@ Overridepublic void onTabUnselected (Tab arg0, android. app. fragmentTransaction arg1) {// TODO Auto-generated method stub}/*** ActionBar style, set. * **/@ Overridepublic 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 custom Viewpager class: class myFrgamentPagerAdapter extends FragmentPagerAdapter {public myFrgamentPagerAdapter (FragmentManager fm) {super (fm ); // TODO Auto-generated constructor stub} @ Overridepublic Fragment getItem (int position) {// switch (position) {case TAB_INDEX_ONE: return fragment1; case TAB_INDEX_TWO: return fragment2;} throw new IllegalStateException ("No fragment at position" + position);} @ Overridepublic int getCount () {// TODO Auto-generated method stubreturn TAB_INDEX_COUNT ;}}}