Java tutorial
/* * Copyright (C) 2012 Crossbones Software * This code has been modified. Portions copyright (C) 2013, Dirty Unicorns Project. * * 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. */ package com.javierd.about; import java.util.ArrayList; import android.app.ActionBar; import android.app.ActionBar.Tab; import android.app.FragmentTransaction; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.net.Uri; import android.os.Bundle; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentActivity; import android.support.v4.app.FragmentPagerAdapter; import android.support.v4.view.ViewPager; import android.util.Log; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; public class AboutActivity extends FragmentActivity { public static Context appContext; private ViewPager mViewPager; private TabsAdapter mTabsAdapter; public static final String PREFS_NAME = "About"; public static final String DU_VERSION = "du_version"; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); mViewPager = new ViewPager(this); mViewPager.setId(R.id.pager); setContentView(mViewPager); appContext = getApplicationContext(); ActionBar actionbar = getActionBar(); actionbar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS); actionbar.setDisplayShowHomeEnabled(false); mTabsAdapter = new TabsAdapter(this, mViewPager); mTabsAdapter.addTab(actionbar.newTab().setText(R.string.about_tab_title), AboutFragment.class, null); mTabsAdapter.addTab(actionbar.newTab().setText(R.string.features_tab_title), FeaturesFragment.class, null); mTabsAdapter.addTab(actionbar.newTab().setText(R.string.dirt_tab_title), DirtFragment.class, null); mTabsAdapter.addTab(actionbar.newTab().setText(R.string.contributors_tab_title), ContributorsFragment.class, null); mTabsAdapter.addTab(actionbar.newTab().setText(R.string.social_tab_title), SocialFragment.class, null); } @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.menuitem_exit: String duVersion = Utils.getDuVersion(); SharedPreferences prefs = this.getSharedPreferences(PREFS_NAME, 0); SharedPreferences.Editor prefEditor = prefs.edit(); prefEditor.putString(DU_VERSION, duVersion); prefEditor.commit(); finish(); return true; } return false; } @Override protected void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); outState.putInt("tab", getActionBar().getSelectedNavigationIndex()); } //SOCIAL public void launchGoogleplus(View view) { Intent intent = new Intent(); intent.setAction(Intent.ACTION_VIEW); intent.setData(Uri.parse(getString(R.string.googleplus_url))); startActivity(intent); } public void launchTwitter(View view) { Intent intent = new Intent(); intent.setAction(Intent.ACTION_VIEW); intent.setData(Uri.parse(getString(R.string.twitter_url))); startActivity(intent); } public void launchGithub(View view) { Intent intent = new Intent(); intent.setAction(Intent.ACTION_VIEW); intent.setData(Uri.parse(getString(R.string.github_url))); startActivity(intent); } public void launchPaypal(View view) { Intent intent = new Intent(); intent.setAction(Intent.ACTION_VIEW); intent.setData( Uri.parse("https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=4EDVWNMDU2R8W")); startActivity(intent); } //CONTRIBUTORS public void launchAokp(View view) { Intent intent = new Intent(); intent.setAction(Intent.ACTION_VIEW); intent.setData(Uri.parse(getString(R.string.aokp_url))); startActivity(intent); } public void launchOmni(View view) { Intent intent = new Intent(); intent.setAction(Intent.ACTION_VIEW); intent.setData(Uri.parse(getString(R.string.omni_url))); startActivity(intent); } public void launchSlim(View view) { Intent intent = new Intent(); intent.setAction(Intent.ACTION_VIEW); intent.setData(Uri.parse(getString(R.string.slim_url))); startActivity(intent); } public void launchChaos(View view) { Intent intent = new Intent(); intent.setAction(Intent.ACTION_VIEW); intent.setData(Uri.parse(getString(R.string.chaos_url))); startActivity(intent); } //TEAM public void launchJavierd(View view) { Intent intent = new Intent(); intent.setAction(Intent.ACTION_VIEW); intent.setData(Uri.parse(getString(R.string.javierd_url))); startActivity(intent); } public static class TabsAdapter extends FragmentPagerAdapter implements ActionBar.TabListener, ViewPager.OnPageChangeListener { private static final String TAG = "About AOSPLUS"; 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; TabInfo(Class<?> _class, Bundle _args) { clss = _class; args = _args; } } public TabsAdapter(FragmentActivity activity, ViewPager pager) { super(activity.getSupportFragmentManager()); 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(); } public int getCount() { return mTabs.size(); } public Fragment getItem(int position) { TabInfo info = mTabs.get(position); return Fragment.instantiate(mContext, info.clss.getName(), info.args); } public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { } public void onPageSelected(int position) { mActionBar.setSelectedNavigationItem(position); } public void onPageScrollStateChanged(int state) { } public void onTabSelected(Tab tab, FragmentTransaction ft) { mViewPager.setCurrentItem(tab.getPosition()); Log.v(TAG, "clicked"); Object tag = tab.getTag(); for (int i = 0; i < mTabs.size(); i++) { if (mTabs.get(i) == tag) { mViewPager.setCurrentItem(i); } } } @Override public void onTabReselected(Tab arg0, FragmentTransaction arg1) { } @Override public void onTabUnselected(Tab arg0, FragmentTransaction arg1) { } } }