Java tutorial
/* * Copyright (C) 2013 - 2014 Alexander "Evisceration" Martinz * * 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 3 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, see <http://www.gnu.org/licenses/>. * */ package org.namelessrom.devicecontrol; import android.annotation.SuppressLint; import android.content.ComponentName; import android.content.Context; import android.content.res.Resources; import android.os.Environment; import android.os.Handler; import android.support.annotation.NonNull; import android.support.v4.content.ContextCompat; import com.squareup.leakcanary.LeakCanary; import com.squareup.leakcanary.RefWatcher; import org.namelessrom.devicecontrol.models.DeviceConfig; import org.namelessrom.devicecontrol.utils.Utils; import java.io.File; import io.paperdb.Paper; import uk.co.senab.bitmapcache.BitmapLruCache; // XXX: DO NOT USE ROOT HERE! NEVER! public class Application extends android.app.Application { public static final Handler HANDLER = new Handler(); private static final String sExternalStoragePath = String.format("%s/%s", Environment.getExternalStorageDirectory(), "DeviceControl"); private static final File sExternalStorageDir = new File(sExternalStoragePath); private static Application sInstance; private BitmapLruCache mCache; private RefWatcher mRefWatcher; public static Application get() { return Application.sInstance; } public static Application getApplication(Context context) { return (Application) context.getApplicationContext(); } public static Application installRefWatcher(@NonNull Object watchedReference) { if (sInstance.mRefWatcher != null) { sInstance.mRefWatcher.watch(watchedReference); } return sInstance; } @Override public void onLowMemory() { super.onLowMemory(); if (mCache != null) { mCache.trimMemory(); } } @Override public void onCreate() { super.onCreate(); if (BuildConfig.USE_LEAK_CANARY) { mRefWatcher = LeakCanary.install(this); } // force enable logger until we hit the user preference Logger.setEnabled(true); Application.sInstance = this; Paper.init(this); buildCache(); setupEverything(); } private void setupEverything() { Thread thread = new Thread(new Runnable() { @Override public void run() { setupEverythingAsync(); } }); thread.start(); } private void setupEverythingAsync() { DeviceConfig deviceConfig = DeviceConfig.get(); if (deviceConfig.debugStrictMode) { Logger.setStrictModeEnabled(true); } Logger.setEnabled(deviceConfig.extensiveLogging); dumpInformation(); boolean isNameless = Utils.isNameless(this); Logger.v(this, String.format("is nameless: %s", isNameless)); if (isNameless) { ComponentName c = new ComponentName(getPackageName(), DummyLauncher.class.getName()); Utils.toggleComponent(c, false); Logger.v(this, "Force toggled on launcher icon for backwards compatibility with n-2.0"); } } private void buildCache() { final File cacheLocation; if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) { cacheLocation = new File(sExternalStorageDir, "bitmapCache"); } else { cacheLocation = new File(getFilesDir(), "bitmapCache"); } //noinspection ResultOfMethodCallIgnored cacheLocation.mkdirs(); BitmapLruCache.Builder builder = new BitmapLruCache.Builder(this); builder.setMemoryCacheEnabled(true).setMemoryCacheMaxSizeUsingHeapSize(0.25f); builder.setDiskCacheEnabled(true).setDiskCacheLocation(cacheLocation); mCache = builder.build(); } private void dumpInformation() { if (!Logger.getEnabled()) { return; } final Resources res = getResources(); final int gmsVersion = res.getInteger(R.integer.google_play_services_version); Logger.i(this, "Google Play Services -> %s", gmsVersion); } public BitmapLruCache getBitmapCache() { return mCache; } @SuppressLint("SdCardPath") public String getFilesDirectory() { final File tmp = getFilesDir(); if (tmp != null && tmp.isDirectory()) { return tmp.getPath(); } else { return "/data/data/" + Application.get().getPackageName(); } } public int getColorApplication(final int resId) { return ContextCompat.getColor(this, resId); } public String[] getStringArray(final int resId) { return getResources().getStringArray(resId); } }