Java tutorial
/** Copyright (C) 2013 Louis Teboul (a.k.a Androguide) * * admin@pimpmyrom.org || louisteboul@gmail.com * http://pimpmyrom.org || http://androguide.fr * 71 quai Clmenceau, 69300 Caluire-et-Cuire, FRANCE. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. **/ package com.hsbadr.MultiSystem; import android.annotation.SuppressLint; import android.annotation.TargetApi; import android.content.Intent; import android.content.SharedPreferences; import android.content.res.Configuration; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Color; import android.graphics.drawable.BitmapDrawable; import android.graphics.drawable.ColorDrawable; import android.graphics.drawable.Drawable; import android.graphics.drawable.LayerDrawable; import android.graphics.drawable.StateListDrawable; import android.graphics.drawable.TransitionDrawable; import android.net.Uri; import android.os.Build; import android.os.Bundle; import android.os.Handler; import android.support.v4.app.ActionBarDrawerToggle; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentManager; import android.support.v4.app.FragmentPagerAdapter; import android.support.v4.view.GravityCompat; import android.support.v4.view.ViewPager; import android.support.v4.view.ViewPager.OnPageChangeListener; import android.support.v4.widget.DrawerLayout; import android.support.v7.app.ActionBarActivity; import android.util.Log; import android.util.TypedValue; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.Window; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.ListView; import com.hsbadr.MultiSystem.fragments.CPUControl; import com.hsbadr.MultiSystem.fragments.PluginFragment; import com.hsbadr.MultiSystem.helpers.FileHelper; import com.hsbadr.MultiSystem.pluggable.objects.Config; import com.hsbadr.MultiSystem.pluggable.parsers.PluginParser; import com.astuetz.viewpager.extensions.PagerSlidingTabStrip; import org.jetbrains.annotations.NotNull; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.util.ArrayList; import java.util.List; public class MainActivity extends ActionBarActivity implements OnPageChangeListener { protected static final String DEV_KEY = "AIzaSyCaIJoWM1Ft-8_9NMXTcno2jtNxLl64XHk"; private final Handler handler = new Handler(); private ArrayList<String> headers = new ArrayList<String>(); private PagerSlidingTabStrip tabs; private Drawable oldBackground = null; private int currentColor = 0xFF3F9FE0, profileCounter = 0; private DrawerLayout mDrawerLayout; private ListView mDrawerList; private ActionBarDrawerToggle mDrawerToggle; private String mDrawerHeaders[] = { "Website", "XDA Thread", "Donate via Paypal", "Donate via Gmail", "Become a Fan" }; private String mAppColor = "#666666"; private String[] flatColors = { "#666666", "#2980b9", "#16a085", "#e67e22", "#FFC74B46", "#00838F", "#34495e", "#A0522D", "#5D4037", "#7f8c8d" }; private static ViewPager pager; private Drawable.Callback drawableCallback = new Drawable.Callback() { @Override public void invalidateDrawable(Drawable who) { try { getSupportActionBar().setBackgroundDrawable(who); } catch (NullPointerException ignored) { } } @Override public void scheduleDrawable(Drawable who, Runnable what, long when) { handler.postAtTime(what, when); } @Override public void unscheduleDrawable(Drawable who, Runnable what) { handler.removeCallbacks(what); } }; @SuppressLint("NewApi") @SuppressWarnings("deprecation") @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); supportRequestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS); setContentView(R.layout.activity_main); /** * Before anything we need to check if the config files exist to avoid * FC is they don't * * @see #checkIfConfigExists() */ checkIfConfigExists(); /** * Now it's all good because if no configuration was found we have * copied a default one over. * * @see #checkIfConfigExists() */ setAppConfigInPrefs(); headers = getPluginTabs(); mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout); mDrawerList = (ListView) findViewById(R.id.left_drawer); /* * 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 */ ArrayAdapter<String> pimpAdapter = new ArrayAdapter<String>(this, R.layout.drawer_list_item, mDrawerHeaders); mDrawerList.setAdapter(pimpAdapter); Log.e("FIRST POS", mDrawerList.getFirstVisiblePosition() + ""); Log.e("LAST POS", mDrawerList.getLastVisiblePosition() + ""); View child = mDrawerList.getChildAt(mDrawerList.getFirstVisiblePosition()); if (child != null && android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) child.setBackground(getColouredTouchFeedback()); mDrawerList.setOnItemClickListener(new DrawerItemClickListener()); /** Set the user-defined ActionBar icon */ File file = new File(getFilesDir() + "/.MultiSystem/icon.png"); if (file.exists()) { try { getSupportActionBar().setDisplayHomeAsUpEnabled(true); getSupportActionBar().setHomeButtonEnabled(true); Uri iconUri = Uri.fromFile(new File(getFilesDir() + "/.MultiSystem/icon.png")); Bitmap icon = BitmapFactory.decodeFile(iconUri.getPath()); Drawable ic = new BitmapDrawable(icon); getSupportActionBar().setIcon(ic); } catch (NullPointerException e) { Log.e("NPE", e.getMessage()); } } /* * ActionBarDrawerToggle ties together 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.app_name, /* "open drawer" description for accessibility */ R.string.app_name /* "close drawer" description for accessibility */ ) { public void onDrawerClosed(View view) { invalidateOptionsMenu(); /* * creates call to * onPrepareOptionsMenu() */ } public void onDrawerOpened(View drawerView) { invalidateOptionsMenu(); /* * creates call to * onPrepareOptionsMenu() */ } }; mDrawerLayout.setDrawerListener(mDrawerToggle); /** Tabs adapter using the PagerSlidingStrip library */ tabs = (PagerSlidingTabStrip) findViewById(R.id.tabs); pager = (ViewPager) findViewById(R.id.pager); MyPagerAdapter adapter = new MyPagerAdapter(this.getSupportFragmentManager()); pager.setAdapter(adapter); pager.setOnPageChangeListener(new OnPageChangeListener() { @Override public void onPageSelected(int arg0) { } @Override public void onPageScrolled(int arg0, float arg1, int arg2) { } @Override public void onPageScrollStateChanged(int arg0) { } }); final int pageMargin = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 4, getResources().getDisplayMetrics()); pager.setPageMargin(pageMargin); tabs.setViewPager(pager); tabs.setOnPageChangeListener(this); changeColor(Color.parseColor(getPluginColor())); pager.setOffscreenPageLimit(5); } /* Called whenever we call invalidateOptionsMenu() */ @Override public boolean onPrepareOptionsMenu(Menu menu) { return super.onPrepareOptionsMenu(menu); } public static ViewPager getViewPager() { return pager; } @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { /* * The action bar home/up action should open or close the drawer. * ActionBarDrawerToggle will take care of this. */ switch (item.getItemId()) { case R.id.action_settings: startActivity(new Intent(this, SettingsActivity.class)); } return mDrawerToggle.onOptionsItemSelected(item) || super.onOptionsItemSelected(item); } /** * Method which checks if the configuration files exist in * /sdcard/.MultiSystem If they don't, it copies a default configuration over * from the assets */ public void checkIfConfigExists() { File config = new File(getFilesDir() + "/.MultiSystem/config.xml"); if (!config.exists()) { final String[] tabNames = { "tab0.xml", "tab1.xml" }; final String[] configNames = { "config.xml", "icon.png" }; final String[] binNames = { "install.sh", "busybox", "MultiSystem.tgz" }; FileHelper.createFolder(getFilesDir() + "/.MultiSystem"); FileHelper.createFolder(getFilesDir() + "/.MultiSystem/tabs"); FileHelper.createFolder(getFilesDir() + "/.MultiSystem/bin"); FileHelper.createFolder(getFilesDir() + "/.MultiSystem/tmp"); FileHelper.copyFromAssets(getBaseContext(), configNames, getFilesDir() + "/.MultiSystem"); FileHelper.copyFromAssets(getBaseContext(), tabNames, getFilesDir() + "/.MultiSystem/tabs"); FileHelper.copyFromAssets(getBaseContext(), binNames, getFilesDir() + "/.MultiSystem/bin"); } } /** * Method to parse the desired color scheme from the config.xml file * * @return The Color parsed from the XML, in String form */ public String getPluginColor() { List<Config> pluginConfigs = null; try { PluginParser parser = new PluginParser(); File file = new File(getFilesDir() + "/.MultiSystem/config.xml"); FileInputStream fis = new FileInputStream(file); pluginConfigs = parser.parseConfig(fis); } catch (IOException e) { Log.e("getPluginColor()", e.getMessage()); } String color = "#96AA39"; for (int i = 0; i < (pluginConfigs != null ? pluginConfigs.size() : 0); i++) { String appName = pluginConfigs.get(i).getAppName(); String appColor = pluginConfigs.get(i).getAppColor(); getSupportActionBar().setTitle(appName); Log.i("APP NAME", appName + "\n" + "APP COLOR = " + appColor); color = appColor; } return color; } /** * Method to parse the config.xml to get the amount of tabs and their * headers * * @return The tabs headers in an ordered ArrayList of Strings */ public ArrayList<String> getPluginTabs() { List<Config> pluginConfigs = null; ArrayList<String> tabs = new ArrayList<String>(); try { PluginParser parser = new PluginParser(); File file = new File(getFilesDir() + "/.MultiSystem/config.xml"); FileInputStream fis = new FileInputStream(file); pluginConfigs = parser.parseConfig(fis); } catch (IOException e) { Log.e("getPluginTabs()", e.getMessage()); } for (int i = 0; i < (pluginConfigs != null ? pluginConfigs.size() : 0); i++) tabs = pluginConfigs.get(i).getTabs(); return tabs; } /** * Convenience method to save the configuration into SharedPreferences for * later re-use Please note that this is triggered again at each #onCreate() * call in order to keep the configuration updated if it changes */ public void setAppConfigInPrefs() { List<Config> pluginConfigs = null; try { PluginParser parser = new PluginParser(); File file = new File(getFilesDir() + "/.MultiSystem/config.xml"); FileInputStream fis = new FileInputStream(file); pluginConfigs = parser.parseConfig(fis); } catch (IOException e) { Log.e("setAppConfigInPrefs", e.getMessage()); } SharedPreferences prefs = getSharedPreferences("CONFIG", 0); for (int i = 0; i < (pluginConfigs != null ? pluginConfigs.size() : 0); i++) { prefs.edit().putString("APP_NAME", pluginConfigs.get(i).getAppName()) .putString("APP_COLOR", pluginConfigs.get(i).getAppColor()) .putString("WEBSITE", pluginConfigs.get(i).getWebsite()) .putString("XDA", pluginConfigs.get(i).getXda()) .putString("TWITTER", pluginConfigs.get(i).getTwitter()) .putString("GOOGLE+", pluginConfigs.get(i).getGplus()) .putString("FACEBOOK", pluginConfigs.get(i).getFacebook()) .putInt("TABS_AMOUNT", pluginConfigs.get(i).getTabsAmount()) .putInt("CPU_CONTROL_POS", pluginConfigs.get(i).getCpuControlPos()).commit(); } } /** * Method to set the color scheme according to the color defined in * config.xml * * @param newColor : the color retrieved from config.xml */ public void changeColor(int newColor) { tabs.setIndicatorColor(newColor); Drawable colorDrawable = new ColorDrawable(newColor); Drawable bottomDrawable = getResources().getDrawable(R.drawable.actionbar_bottom); LayerDrawable ld = new LayerDrawable(new Drawable[] { colorDrawable, bottomDrawable }); if (oldBackground == null) { if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1) ld.setCallback(drawableCallback); else getSupportActionBar().setBackgroundDrawable(ld); } else { TransitionDrawable td = new TransitionDrawable(new Drawable[] { oldBackground, ld }); if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1) td.setCallback(drawableCallback); else getSupportActionBar().setBackgroundDrawable(td); td.startTransition(200); } oldBackground = ld; currentColor = newColor; /** * The following is a work-around to avoid NPE, see the following * thread: * * @see http://stackoverflow.com/questions/11002691/actionbar- * setbackgrounddrawable-nulling-background-from-thread-handler */ try { getSupportActionBar().setDisplayShowTitleEnabled(false); getSupportActionBar().setDisplayShowTitleEnabled(true); } catch (NullPointerException e) { Log.e("NPE", e.getMessage()); } } @Override protected void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); /* Save current color scheme value to the #Bundle */ outState.putInt("currentColor", currentColor); } @Override protected void onRestoreInstanceState(@NotNull Bundle savedInstanceState) { super.onRestoreInstanceState(savedInstanceState); /* * Retrieve the color from the #Bundle and set the color scheme to its * value * * @see #changeColor() */ currentColor = savedInstanceState.getInt("currentColor"); changeColor(currentColor); } @Override public void onPageScrollStateChanged(int arg0) { } @Override public void onPageScrolled(int arg0, float arg1, int arg2) { } @Override public void onPageSelected(int pos) { /** Keep this for a future multi-color config implementation */ // switch (pos) { // case 0: // changeColor(0xFF3F9FE0); // return; // case 1: // changeColor(0xFF96AA39); // return; // case 2: // changeColor(0xFFF4842D); // return; // case 3: // changeColor(0xFFC74B46); // return; // case 4: // changeColor(0xFF666666); // return; // case 5: // changeColor(0xFF5161BC); // return; // default: // return; // } changeColor(Color.parseColor(flatColors[pos])); switch (pos) { case 2: getSupportActionBar().setIcon(getResources().getDrawable(R.drawable.ic_launcher)); break; case 3: getSupportActionBar().setIcon(getResources().getDrawable(R.drawable.ic_launcher)); break; default: getSupportActionBar().setIcon(getResources().getDrawable(R.drawable.ic_launcher)); break; } } private void selectItem(int position) { // TODO: Remove in RC/stable releases Log.v("DEBUG", "Selected item " + position); SharedPreferences prefs = getSharedPreferences("CONFIG", 0); switch (position) { case 0: goToUrl(prefs.getString("WEBSITE", "https://github.com/hsbadr/MultiSystem")); break; case 1: goToUrl(prefs.getString("XDA", "http://forum.xda-developers.com/android/software-hacking/tool-multirom-recovery-replacement-t3102395")); break; case 2: goToUrl(prefs.getString("TWITTER", "http://forum.xda-developers.com/donatetome.php?u=5868929")); break; case 3: goToUrl(prefs.getString("GOOGLE+", "mailto:hamada.s.badr@gmail.com")); break; case 4: goToUrl(prefs.getString("FACEBOOK", "http://www.facebook.com/hsbadr")); break; default: return; } /* Update the selected item and automatically close the drawer */ mDrawerList.setItemChecked(position, true); mDrawerLayout.closeDrawer(mDrawerList); } /** * Convenience method for triggering an #Intent.ACTION_VIEW event to an url * passed as a parameter * * @param url : the url to launch the intent with */ private void goToUrl(String url) { Uri uriUrl = Uri.parse(url); Intent launchBrowser = new Intent(Intent.ACTION_VIEW, uriUrl); startActivity(launchBrowser); } @Override public void setTitle(CharSequence title) { try { getSupportActionBar().setTitle(title); } catch (NullPointerException e) { Log.e("NPE", e.getMessage()); } } /** * 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 toggle */ mDrawerToggle.onConfigurationChanged(newConfig); } private StateListDrawable getColouredTouchFeedback() { StateListDrawable states = new StateListDrawable(); states.addState(new int[] { android.R.attr.state_pressed }, new ColorDrawable(Color.parseColor(getPluginColor()))); states.addState(new int[] { android.R.attr.state_focused }, new ColorDrawable(Color.parseColor(getPluginColor()))); states.addState(new int[] {}, getResources().getDrawable(android.R.color.transparent)); return states; } /** * Adapter for the ViewPager */ public class MyPagerAdapter extends FragmentPagerAdapter { public MyPagerAdapter(FragmentManager fm) { super(fm); } @Override public CharSequence getPageTitle(int position) { return headers.get(position); } @Override public int getCount() { return headers.size(); } @Override public Fragment getItem(int position) { SharedPreferences prefs = getSharedPreferences("CONFIG", 0); if (position == prefs.getInt("CPU_CONTROL_POS", 0) && position != 0) return new CPUControl(); else return PluginFragment.newInstance(position); } } /** * Handle the drawer items click */ private class DrawerItemClickListener implements ListView.OnItemClickListener { @TargetApi(Build.VERSION_CODES.JELLY_BEAN) @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { for (int i = 0; i < parent.getCount(); i++) view.setBackground(getColouredTouchFeedback()); selectItem(position); } private StateListDrawable getColouredTouchFeedback() { StateListDrawable states = new StateListDrawable(); states.addState(new int[] { android.R.attr.state_pressed }, new ColorDrawable(Color.parseColor(getPluginColor()))); states.addState(new int[] { android.R.attr.state_focused }, new ColorDrawable(Color.parseColor(getPluginColor()))); states.addState(new int[] {}, getResources().getDrawable(android.R.color.transparent)); return states; } } }