Java tutorial
/* Copyright 2016 Braden Farmer * * 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.farmerbb.taskbar.activity; import android.annotation.SuppressLint; import android.annotation.TargetApi; import android.app.Activity; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.content.SharedPreferences; import android.os.Build; import android.os.Bundle; import android.os.Handler; import android.provider.Settings; import android.support.v4.content.LocalBroadcastManager; import android.view.WindowManager; import com.farmerbb.taskbar.activity.dark.InvisibleActivityAltDark; import com.farmerbb.taskbar.service.DashboardService; import com.farmerbb.taskbar.service.NotificationService; import com.farmerbb.taskbar.service.StartMenuService; import com.farmerbb.taskbar.service.TaskbarService; import com.farmerbb.taskbar.util.FreeformHackHelper; import com.farmerbb.taskbar.util.IconCache; import com.farmerbb.taskbar.util.LauncherHelper; import com.farmerbb.taskbar.util.U; public class InvisibleActivityFreeform extends Activity { boolean showTaskbar = false; boolean doNotHide = false; boolean proceedWithOnCreate = true; boolean finish = false; boolean bootToFreeform = false; boolean initialLaunch = true; private BroadcastReceiver appearingReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { doNotHide = true; } }; private BroadcastReceiver disappearingReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { doNotHide = false; } }; private BroadcastReceiver finishReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { reallyFinish(); } }; @SuppressLint("HardwareIds") @TargetApi(Build.VERSION_CODES.N) @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); if (FreeformHackHelper.getInstance().isFreeformHackActive()) { proceedWithOnCreate = false; super.finish(); } if (getIntent().hasExtra("check_multiwindow")) { showTaskbar = false; if (!isInMultiWindowMode()) { proceedWithOnCreate = false; super.finish(); } } if (proceedWithOnCreate) { // Detect outside touches, and pass them through to the underlying activity getWindow().setFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL, WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL); getWindow().setFlags(WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH, WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH); IntentFilter appearingReceiverFilter = new IntentFilter(); appearingReceiverFilter.addAction("com.farmerbb.taskbar.START_MENU_APPEARING"); appearingReceiverFilter.addAction("com.farmerbb.taskbar.CONTEXT_MENU_APPEARING"); IntentFilter disappearingReceiverFilter = new IntentFilter(); disappearingReceiverFilter.addAction("com.farmerbb.taskbar.START_MENU_DISAPPEARING"); disappearingReceiverFilter.addAction("com.farmerbb.taskbar.CONTEXT_MENU_DISAPPEARING"); LocalBroadcastManager.getInstance(this).registerReceiver(appearingReceiver, appearingReceiverFilter); LocalBroadcastManager.getInstance(this).registerReceiver(disappearingReceiver, disappearingReceiverFilter); LocalBroadcastManager.getInstance(this).registerReceiver(finishReceiver, new IntentFilter("com.farmerbb.taskbar.FINISH_FREEFORM_ACTIVITY")); FreeformHackHelper helper = FreeformHackHelper.getInstance(); helper.setFreeformHackActive(true); // Show power button warning on CyanogenMod / LineageOS devices if (getPackageManager().hasSystemFeature("com.cyanogenmod.android")) { SharedPreferences pref = U.getSharedPreferences(this); if (!pref.getString("power_button_warning", "null") .equals(Settings.Secure.getString(getContentResolver(), Settings.Secure.ANDROID_ID))) { new Handler().postDelayed(() -> { if (helper.isInFreeformWorkspace()) { Intent intent = null; switch (pref.getString("theme", "light")) { case "light": intent = new Intent(InvisibleActivityFreeform.this, InvisibleActivityAlt.class); break; case "dark": intent = new Intent(InvisibleActivityFreeform.this, InvisibleActivityAltDark.class); break; } if (intent != null) { intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); intent.putExtra("power_button_warning", true); } U.launchAppMaximized(getApplicationContext(), intent); } }, 100); } } showTaskbar = true; } } @TargetApi(Build.VERSION_CODES.N) @Override protected void onResume() { super.onResume(); // Show the taskbar when activity is resumed (no other freeform windows are active) if (showTaskbar) LocalBroadcastManager.getInstance(this).sendBroadcast(new Intent("com.farmerbb.taskbar.SHOW_TASKBAR")); if (!isInMultiWindowMode() && !initialLaunch) reallyFinish(); initialLaunch = false; } @Override protected void onPause() { super.onPause(); possiblyHideTaskbar(); } @Override protected void onDestroy() { super.onDestroy(); if (proceedWithOnCreate) { LocalBroadcastManager.getInstance(this).unregisterReceiver(appearingReceiver); LocalBroadcastManager.getInstance(this).unregisterReceiver(disappearingReceiver); LocalBroadcastManager.getInstance(this).unregisterReceiver(finishReceiver); if (!finish) { FreeformHackHelper helper = FreeformHackHelper.getInstance(); helper.setFreeformHackActive(false); helper.setInFreeformWorkspace(false); finish = true; } } } @Override protected void onStart() { super.onStart(); FreeformHackHelper.getInstance().setInFreeformWorkspace(true); if (U.launcherIsDefault(this)) { LauncherHelper.getInstance().setOnHomeScreen(true); bootToFreeform = true; // We always start the Taskbar and Start Menu services, even if the app isn't normally running startService(new Intent(this, TaskbarService.class)); startService(new Intent(this, StartMenuService.class)); startService(new Intent(this, DashboardService.class)); SharedPreferences pref = U.getSharedPreferences(this); if (pref.getBoolean("taskbar_active", false) && !U.isServiceRunning(this, NotificationService.class)) pref.edit().putBoolean("taskbar_active", false).apply(); // Show the taskbar when activity is started new Handler().postDelayed(() -> { if (showTaskbar) LocalBroadcastManager.getInstance(InvisibleActivityFreeform.this) .sendBroadcast(new Intent("com.farmerbb.taskbar.SHOW_TASKBAR")); }, 100); } // Show the taskbar when activity is started if (showTaskbar) LocalBroadcastManager.getInstance(this).sendBroadcast(new Intent("com.farmerbb.taskbar.SHOW_TASKBAR")); } @Override protected void onStop() { super.onStop(); if (!finish) FreeformHackHelper.getInstance().setInFreeformWorkspace(false); possiblyHideTaskbar(); if (bootToFreeform && !finish) { LauncherHelper.getInstance().setOnHomeScreen(false); bootToFreeform = false; // Stop the Taskbar and Start Menu services if they should normally not be active SharedPreferences pref = U.getSharedPreferences(this); if (!pref.getBoolean("taskbar_active", false) || pref.getBoolean("is_hidden", false)) { stopService(new Intent(this, TaskbarService.class)); stopService(new Intent(this, StartMenuService.class)); stopService(new Intent(this, DashboardService.class)); IconCache.getInstance(this).clearCache(); } } } // We don't want this activity to finish under normal circumstances @Override public void finish() { } private void possiblyHideTaskbar() { new Handler().postDelayed(() -> { if (!doNotHide) { SharedPreferences pref = U.getSharedPreferences(InvisibleActivityFreeform.this); if (pref.getBoolean("hide_taskbar", true) && !FreeformHackHelper.getInstance().isInFreeformWorkspace() && !LauncherHelper.getInstance().isOnHomeScreen()) LocalBroadcastManager.getInstance(InvisibleActivityFreeform.this) .sendBroadcast(new Intent("com.farmerbb.taskbar.HIDE_TASKBAR")); else LocalBroadcastManager.getInstance(InvisibleActivityFreeform.this) .sendBroadcast(new Intent("com.farmerbb.taskbar.HIDE_START_MENU")); } }, 100); } private void reallyFinish() { InvisibleActivityFreeform.super.finish(); overridePendingTransition(0, 0); if (!finish) { FreeformHackHelper helper = FreeformHackHelper.getInstance(); helper.setFreeformHackActive(false); helper.setInFreeformWorkspace(false); finish = true; } } }