Java tutorial
package net.aixin.app.ui; import android.annotation.SuppressLint; import android.annotation.TargetApi; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.graphics.drawable.Drawable; import android.os.Build; import android.os.Bundle; import android.os.Handler; import android.support.v4.app.Fragment; import android.support.v4.widget.DrawerLayout; import android.support.v7.app.ActionBar; import android.support.v7.app.ActionBarActivity; import android.util.TypedValue; import android.view.Gravity; import android.view.KeyEvent; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuItem; import android.view.MotionEvent; import android.view.View; import android.view.View.OnTouchListener; import android.widget.TabHost.OnTabChangeListener; import android.widget.TabHost.TabContentFactory; import android.widget.TabHost.TabSpec; import android.widget.TextView; import com.networkbench.agent.impl.NBSAppAgent; import net.aixin.app.AppConfig; import net.aixin.app.AppContext; import net.aixin.app.AppManager; import net.aixin.app.R; import net.aixin.app.bean.Constants; import net.aixin.app.bean.Notice; import net.aixin.app.bean.SimpleBackPage; import net.aixin.app.cache.DataCleanManager; import net.aixin.app.fragment.MyInformationFragment; import net.aixin.app.interf.BaseViewInterface; import net.aixin.app.interf.OnTabReselectListener; import net.aixin.app.service.NoticeUtils; import net.aixin.app.util.UIHelper; import net.aixin.app.util.UpdateManager; import net.aixin.app.widget.BadgeView; import net.aixin.app.widget.MyFragmentTabHost; import butterknife.ButterKnife; import butterknife.InjectView; @SuppressLint("InflateParams") @TargetApi(Build.VERSION_CODES.HONEYCOMB) public class MainActivity extends ActionBarActivity implements NavigationDrawerFragment.NavigationDrawerCallbacks, OnTabChangeListener, BaseViewInterface, View.OnClickListener, OnTouchListener { private DoubleClickExitHelper mDoubleClickExit; /** * Fragment managing the behaviors, interactions and presentation of the * navigation drawer. */ private NavigationDrawerFragment mNavigationDrawerFragment; @InjectView(android.R.id.tabhost) public MyFragmentTabHost mTabHost; private BadgeView mBvNotice; public static Notice mNotice; private BroadcastReceiver mReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { if (intent.getAction().equals(Constants.INTENT_ACTION_NOTICE)) { mNotice = (Notice) intent.getSerializableExtra("notice_bean"); int atmeCount = mNotice.getAtmeCount();// @ int msgCount = mNotice.getMsgCount();// int reviewCount = mNotice.getReviewCount();// int newFansCount = mNotice.getNewFansCount();// ? int newLikeCount = mNotice.getNewLikeCount();// int activeCount = atmeCount + reviewCount + msgCount + newFansCount + newLikeCount; Fragment fragment = getCurrentFragment(); if (fragment instanceof MyInformationFragment) { ((MyInformationFragment) fragment).setNotice(); } else { if (activeCount > 0) { mBvNotice.setText(activeCount + ""); mBvNotice.show(); } else { mBvNotice.hide(); mNotice = null; } } } else if (intent.getAction().equals(Constants.INTENT_ACTION_LOGOUT)) { mBvNotice.hide(); mNotice = null; } } }; /** * Used to store the last screen title. For use in * {@link #restoreActionBar()}. */ private CharSequence mTitle; @InjectView(R.id.quick_option_iv) View mAddBt; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //? if (AppContext.getNightModeSwitch()) { //? setTheme(R.style.AppBaseTheme_Night); } else { //? setTheme(R.style.AppBaseTheme_Light); } setContentView(R.layout.activity_main); ButterKnife.inject(this); initView(); AppManager.getAppManager().addActivity(this); handleIntent(getIntent()); // ?? // NBSAppAgent.setLicenseKey("0ed0cc66c5cb45c0a91c6fa932ca99ac") // .withCrashReportEnabled(true).withLocationServiceEnabled(true) // .start(this); } @Override protected void onNewIntent(Intent intent) { super.onNewIntent(intent); handleIntent(intent); } /** * ??intent * * @author ?? 2015-1-28 ?3:48:44 * * @return void * @param intent */ private void handleIntent(Intent intent) { if (intent == null) return; String action = intent.getAction(); if (action != null && action.equals(Intent.ACTION_VIEW)) { UIHelper.showUrlRedirect(this, intent.getDataString()); } else if (intent.getBooleanExtra("NOTICE", false)) { notifitcationBarClick(intent); } // } /** * ? * * @param fromWhich */ private void notifitcationBarClick(Intent fromWhich) { if (fromWhich != null) { boolean fromNoticeBar = fromWhich.getBooleanExtra("NOTICE", false); if (fromNoticeBar) { Intent toMyInfor = new Intent(this, SimpleBackActivity.class); toMyInfor.putExtra(SimpleBackActivity.BUNDLE_KEY_PAGE, SimpleBackPage.MY_MES.getValue()); startActivity(toMyInfor); } } } @Override public void initView() { mDoubleClickExit = new DoubleClickExitHelper(this); mNavigationDrawerFragment = (NavigationDrawerFragment) getSupportFragmentManager() .findFragmentById(R.id.navigation_drawer); mTitle = getTitle(); // Set up the drawer. mNavigationDrawerFragment.setUp(R.id.navigation_drawer, (DrawerLayout) findViewById(R.id.drawer_layout)); mTabHost.setup(this, getSupportFragmentManager(), R.id.realtabcontent); if (android.os.Build.VERSION.SDK_INT > 10) { mTabHost.getTabWidget().setShowDividers(0); } initTabs(); // ? mAddBt.setOnClickListener(this); mTabHost.setCurrentTab(0); mTabHost.setOnTabChangedListener(this); IntentFilter filter = new IntentFilter(Constants.INTENT_ACTION_NOTICE); filter.addAction(Constants.INTENT_ACTION_LOGOUT); registerReceiver(mReceiver, filter); NoticeUtils.bindToService(this); if (AppContext.isFristStart()) { mNavigationDrawerFragment.openDrawerMenu(); DataCleanManager.cleanInternalCache(AppContext.getInstance()); AppContext.setFristStart(false); } checkUpdate(); } private void checkUpdate() { if (!AppContext.get(AppConfig.KEY_CHECK_UPDATE, true)) { return; } Handler handler = new Handler(); handler.postDelayed(new Runnable() { @Override public void run() { new UpdateManager(MainActivity.this, false).checkUpdate(); } }, 2000); } @Override protected void onDestroy() { super.onDestroy(); NoticeUtils.unbindFromService(this); unregisterReceiver(mReceiver); mReceiver = null; NoticeUtils.tryToShutDown(this); } @Override public void initData() { } private void initTabs() { MainTab[] tabs = MainTab.values(); final int size = tabs.length; for (int i = 0; i < size; i++) { MainTab mainTab = tabs[i]; TabSpec tab = mTabHost.newTabSpec(getString(mainTab.getResName())); View indicator = LayoutInflater.from(getApplicationContext()).inflate(R.layout.tab_indicator, null); TextView title = (TextView) indicator.findViewById(R.id.tab_title); Drawable drawable = this.getResources().getDrawable(mainTab.getResIcon()); title.setCompoundDrawablesWithIntrinsicBounds(null, drawable, null, null); if (i == 2) { indicator.setVisibility(View.INVISIBLE); mTabHost.setNoTabChangedTag(getString(mainTab.getResName())); } title.setText(getString(mainTab.getResName())); tab.setIndicator(indicator); tab.setContent(new TabContentFactory() { @Override public View createTabContent(String tag) { return new View(MainActivity.this); } }); mTabHost.addTab(tab, mainTab.getClz(), null); if (mainTab.equals(MainTab.ME)) { View cn = indicator.findViewById(R.id.tab_mes); mBvNotice = new BadgeView(MainActivity.this, cn); mBvNotice.setBadgePosition(BadgeView.POSITION_TOP_RIGHT); mBvNotice.setTextSize(TypedValue.COMPLEX_UNIT_SP, 10); mBvNotice.setBackgroundResource(R.drawable.notification_bg); mBvNotice.setGravity(Gravity.CENTER); } mTabHost.getTabWidget().getChildAt(i).setOnTouchListener(this); } } @Override public void onNavigationDrawerItemSelected(int position) { // update the main content by replacing fragments } public void restoreActionBar() { ActionBar actionBar = getSupportActionBar(); actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD); actionBar.setDisplayShowTitleEnabled(true); actionBar.setTitle(mTitle); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.main_activity_menu, menu); if (!mNavigationDrawerFragment.isDrawerOpen()) { restoreActionBar(); return true; } return super.onCreateOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { int id = item.getItemId(); switch (id) { case R.id.search: UIHelper.showSimpleBack(this, SimpleBackPage.SEARCH); break; default: break; } return super.onOptionsItemSelected(item); } @Override public void onTabChanged(String tabId) { final int size = mTabHost.getTabWidget().getTabCount(); for (int i = 0; i < size; i++) { View v = mTabHost.getTabWidget().getChildAt(i); if (i == mTabHost.getCurrentTab()) { v.setSelected(true); } else { v.setSelected(false); } } if (tabId.equals(getString(MainTab.ME.getResName()))) { mBvNotice.setText(""); mBvNotice.hide(); } supportInvalidateOptionsMenu(); } @Override public void onClick(View v) { int id = v.getId(); switch (id) { // ? case R.id.quick_option_iv: showQuickOption(); break; default: break; } } // ?? private void showQuickOption() { final QuickOptionDialog dialog = new QuickOptionDialog(MainActivity.this); dialog.setCancelable(true); dialog.setCanceledOnTouchOutside(true); dialog.show(); } @SuppressLint("ClickableViewAccessibility") @Override public boolean onTouch(View v, MotionEvent event) { super.onTouchEvent(event); boolean consumed = false; // use getTabHost().getCurrentTabView to decide if the current tab is // touched again if (event.getAction() == MotionEvent.ACTION_DOWN && v.equals(mTabHost.getCurrentTabView())) { // use getTabHost().getCurrentView() to get a handle to the view // which is displayed in the tab - and to get this views context Fragment currentFragment = getCurrentFragment(); if (currentFragment != null && currentFragment instanceof OnTabReselectListener) { OnTabReselectListener listener = (OnTabReselectListener) currentFragment; listener.onTabReselect(); consumed = true; } } return consumed; } private Fragment getCurrentFragment() { return getSupportFragmentManager().findFragmentByTag(mTabHost.getCurrentTabTag()); } /** * ?--?? */ @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_BACK) { // ? if (AppContext.get(AppConfig.KEY_DOUBLE_CLICK_EXIT, true)) { return mDoubleClickExit.onKeyDown(keyCode, event); } } return super.onKeyDown(keyCode, event); } @Override protected void onSaveInstanceState(Bundle outState) { // TODO Auto-generated method stub // API Level > 11 ?android.os.Build.VERSION.SDK_INT > 11 } }