Java tutorial
package in.suraj.timetableswipe; import in.suraj.timetableswipe.adapter.TabsPagerAdapter; import android.app.ActionBar; import android.app.AlertDialog; import android.app.FragmentTransaction; import android.os.Bundle; import android.support.v4.app.FragmentActivity; import android.support.v4.view.ViewPager; import android.view.Menu; import android.view.MenuItem; /** * * @author Suraj Patil, email: srjptl2050@gmail.com * * Copyright 2013-2014 Suraj Patil * * Licensed under the Apache License, Version 2.0 (the "License"); you * may not use this file except in compliance with the License. You may * obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or * implied. See the License for the specific language governing * permissions and limitations under the License. */ public class MainActivity extends FragmentActivity implements ActionBar.TabListener { private ViewPager mViewPager; private TabsPagerAdapter mAdapter; private ActionBar actionBar; private String[] tabs = { "SY", "TY", "Final" }; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // setup action bar actionBar = getActionBar(); actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS); // Create the adapter that will return a fragment for each of the three // primary sections of the app. mAdapter = new TabsPagerAdapter(getSupportFragmentManager()); // Set up the ViewPager with the sections adapter. mViewPager = (ViewPager) findViewById(R.id.pager); mViewPager.setAdapter(mAdapter); for (String tab_name : tabs) { actionBar.addTab(actionBar.newTab().setText(tab_name).setTabListener(this)); } // When swiping between different sections, select the corresponding // tab. We can also use ActionBar.Tab#select() to do this if we have // a reference to the Tab. mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() { @Override public void onPageSelected(int position) { actionBar.setSelectedNavigationItem(position); } @Override public void onPageScrolled(int arg0, float arg1, int arg2) { } @Override public void onPageScrollStateChanged(int arg0) { } }); } @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; } public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.about: final AlertDialog.Builder alertDialog = new AlertDialog.Builder(this); // Setting Dialog Title alertDialog.setTitle("About TimeTable"); // Setting Dialog Message alertDialog .setMessage("Time table of IT dept\nDeveloped by: Suraj Patil\nContact: Dept of IT, SGGSIET"); // Setting Icon to Dialog alertDialog.setIcon(R.drawable.ic_action_about); // Setting Positive "Yes" Button alertDialog.setPositiveButton("OK", null); // Showing Alert Message alertDialog.show(); return true; } return false; } @Override public void onTabSelected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) { // When the given tab is selected, switch to the corresponding page in // the ViewPager. mViewPager.setCurrentItem(tab.getPosition()); } @Override public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) { } @Override public void onTabReselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) { } }