Java tutorial
/* * Copyright 2013 The Android Open Source 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 de.theknut.xposedgelsettings.ui; import android.annotation.SuppressLint; import android.app.Fragment; import android.app.FragmentManager; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.content.res.Configuration; import android.content.res.Resources; import android.graphics.Color; import android.graphics.drawable.ColorDrawable; import android.os.Bundle; import android.os.Handler; import android.support.v4.app.ActionBarDrawerToggle; import android.support.v4.view.GravityCompat; import android.support.v4.widget.DrawerLayout; import android.view.Gravity; import android.view.KeyEvent; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.View.OnKeyListener; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.ListView; import java.util.Locale; import de.theknut.xposedgelsettings.R; import de.theknut.xposedgelsettings.hooks.Common; @SuppressLint("WorldReadableFiles") public class MainActivity extends InAppPurchase { private DrawerLayout mDrawerLayout; private ListView mDrawerList; private ActionBarDrawerToggle mDrawerToggle; private CharSequence mDrawerTitle; private CharSequence mTitle; private String[] mFragmentTitles; private Fragment mCurrFragment = null; @SuppressWarnings("deprecation") @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mContext = CommonUI.CONTEXT = mActivity = CommonUI.ACTIVITY = this; if (getSharedPreferences(Common.PREFERENCES_NAME, Context.MODE_WORLD_READABLE) .getBoolean("forceenglishlocale", false)) { Resources res = mContext.getResources(); Configuration conf = res.getConfiguration(); conf.locale = new Locale(Locale.US.getDisplayLanguage().toLowerCase()); res.updateConfiguration(conf, res.getDisplayMetrics()); } mTitle = mDrawerTitle = getTitle(); mFragmentTitles = getResources().getStringArray(R.array.fragmenttitles_array); mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout); mDrawerList = (ListView) findViewById(R.id.left_drawer); mDrawerLayout.getRootView().setBackgroundColor(CommonUI.UIColor); getActionBar().setBackgroundDrawable(new ColorDrawable(CommonUI.UIColor)); // set a custom shadow that overlays the main content when the drawer opens mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START); // set up the drawer's list view with items and click listener mDrawerList.setAdapter(new ArrayAdapter<String>(this, R.layout.drawer_list_item, mFragmentTitles)); mDrawerList.setOnItemClickListener(new DrawerItemClickListener()); mDrawerLayout.setOnKeyListener(new OnKeyListener() { @Override public boolean onKey(View v, int keyCode, KeyEvent event) { if (event.getRepeatCount() != 0) return false; if (!mDrawerLayout.isDrawerOpen(Gravity.LEFT)) { if ((keyCode == KeyEvent.KEYCODE_BACK || keyCode == KeyEvent.KEYCODE_MENU)) { mDrawerLayout.openDrawer(Gravity.LEFT); return true; } } else { if (keyCode == KeyEvent.KEYCODE_BACK) { MainActivity.this.finish(); return true; } else if (keyCode == KeyEvent.KEYCODE_MENU) { mDrawerLayout.closeDrawer(Gravity.LEFT); return true; } } return false; } }); // enable ActionBar app icon to behave as action to toggle nav drawer getActionBar().setDisplayHomeAsUpEnabled(true); getActionBar().setHomeButtonEnabled(true); getActionBar().setBackgroundDrawable(new ColorDrawable(CommonUI.UIColor)); // ActionBarDrawerToggle ties together the the proper interactions // between the sliding drawer and the action bar app icon mDrawerToggle = new ActionBarDrawerToggle(this, /* host Activity */ mDrawerLayout, /* DrawerLayout object */ R.drawable.ic_drawer, /* nav drawer image to replace 'Up' caret */ R.string.drawer_open, /* "open drawer" description for accessibility */ R.string.drawer_close /* "close drawer" description for accessibility */ ) { public void onDrawerClosed(View view) { getActionBar().setTitle(mTitle); invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu() } public void onDrawerOpened(View drawerView) { getActionBar().setTitle(mDrawerTitle); invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu() } }; mDrawerLayout.setDrawerListener(mDrawerToggle); SharedPreferences prefs = getSharedPreferences(Common.PREFERENCES_NAME, Context.MODE_WORLD_READABLE); CommonUI.NO_BACKGROUND_IMAGE = prefs.getBoolean("nobackgroundimage", false); CommonUI.AUTO_BLUR_IMAGE = prefs.getBoolean("autoblurimage", false); if (savedInstanceState == null) { Intent i = getIntent(); if (i != null && i.hasExtra("fragment")) { if (i.getStringExtra("fragment").equals("badges")) { selectItem(6); } } else { selectItem(0); } } } @Override public void onResume() { super.onResume(); // sending the colors to Tinted Status Bar StatusBarTintApi.sendColorChangeIntent(CommonUI.UIColor, Color.WHITE, CommonUI.UIColor, Color.WHITE, this); } @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.menu, menu); menu.findItem(R.id.action_save).setVisible(false); return super.onCreateOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { // The action bar home/up action should open or close the drawer. // ActionBarDrawerToggle will take care of this. if (mDrawerToggle.onOptionsItemSelected(item)) { return true; } switch (item.getItemId()) { // action with ID action_refresh was selected case R.id.action_refresh: CommonUI.CONTEXT = this; CommonUI.restartLauncherOrDevice(); break; default: break; } return true; } /* The click listner for ListView in the navigation drawer */ private class DrawerItemClickListener implements ListView.OnItemClickListener { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { selectItem(position); } } @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { boolean beforeIsDonate = isPremium; super.onActivityResult(requestCode, resultCode, data); if (isPremium && !beforeIsDonate) { selectItem(11); } } private void selectItem(final int position) { // update the main content by replacing fragments FragmentManager fm = getFragmentManager(); switch (position) { case 0: mCurrFragment = new FragmentWelcome(); break; case 1: mCurrFragment = new FragmentGeneral(); break; case 2: mCurrFragment = new FragmentSearchbar(); break; case 3: mCurrFragment = new FragmentHomescreen(); break; case 4: mCurrFragment = new FragmentAppDrawer(); break; case 5: mCurrFragment = new FragmentGestures(); break; case 6: mCurrFragment = new FragmentNotificationBadges(); break; case 7: mCurrFragment = new FragmentIcon(); break; case 8: mCurrFragment = new FragmentAndroidIntegration(); break; case 9: mCurrFragment = new FragmentBackupRestore(); break; case 10: mCurrFragment = new FragmentSettings(); break; // !!!! don't forget to change onActivityResult, too !!!! case 11: mCurrFragment = new FragmentPremium(); break; case 12: mCurrFragment = new FragmentReverseEngineering(); break; } fm.beginTransaction().replace(R.id.content_frame, mCurrFragment).commit(); // update selected item and title mDrawerList.setItemChecked(position, true); setTitle(mFragmentTitles[position]); } @Override public void setTitle(CharSequence title) { mTitle = title; getActionBar().setTitle(mTitle); } public static void closeDrawer() { new Handler().postDelayed(new Runnable() { @Override public void run() { ((DrawerLayout) mActivity.findViewById(R.id.drawer_layout)).closeDrawer(Gravity.LEFT); } }, 350); } public static void openDrawer() { ((DrawerLayout) mActivity.findViewById(R.id.drawer_layout)).openDrawer(Gravity.LEFT); } /** * When using the ActionBarDrawerToggle, you must call it during * onPostCreate() and onConfigurationChanged()... */ @Override protected void onPostCreate(Bundle savedInstanceState) { super.onPostCreate(savedInstanceState); // Sync the toggle state after onRestoreInstanceState has occurred. mDrawerToggle.syncState(); } @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); // Pass any configuration change to the drawer toggls mDrawerToggle.onConfigurationChanged(newConfig); } }