Add utils
This commit is contained in:
beanstown106
committed by
hungphan2001
hungphan2001
parent
b9fd5ed58a
commit
a4dba2147e
208
src/com/cherish/settings/preferences/Utils.java
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208
src/com/cherish/settings/preferences/Utils.java
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/**
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* Copyright (C) 2016 The Pure Nexus Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not
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* use this file except in compliance with the License. You may obtain a copy
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* of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package com.cherish.settings.preferences;
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import android.app.Activity;
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import android.content.Context;
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import android.content.pm.ActivityInfo;
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import android.content.pm.ApplicationInfo;
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import android.content.pm.PackageInfo;
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import android.content.pm.PackageManager;
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import android.content.pm.PackageManager.NameNotFoundException;
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import android.content.pm.Signature;
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import android.content.res.Configuration;
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import android.content.res.Resources;
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import android.content.res.Resources.NotFoundException;
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import android.hardware.camera2.CameraAccessException;
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import android.hardware.camera2.CameraCharacteristics;
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import android.hardware.camera2.CameraManager;
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import android.net.ConnectivityManager;
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import android.os.UserManager;
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import android.telephony.TelephonyManager;
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import android.util.DisplayMetrics;
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import android.view.DisplayInfo;
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import android.view.Surface;
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import android.view.WindowManager;
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public final class Utils {
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private static final String TAG = "NitrogenSettingsUtils";
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// Device types
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private static final int DEVICE_PHONE = 0;
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private static final int DEVICE_HYBRID = 1;
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private static final int DEVICE_TABLET = 2;
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// Device type reference
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private static int sDeviceType = -1;
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/**
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* Returns whether the device is voice-capable (meaning, it is also a phone).
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*/
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public static boolean isVoiceCapable(Context context) {
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TelephonyManager telephony =
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(TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
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return telephony != null && telephony.isVoiceCapable();
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}
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public static boolean isWifiOnly(Context context) {
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ConnectivityManager cm = (ConnectivityManager)context.getSystemService(
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Context.CONNECTIVITY_SERVICE);
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return (cm.isNetworkSupported(ConnectivityManager.TYPE_MOBILE) == false);
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}
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public static boolean hasMultipleUsers(Context context) {
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return ((UserManager) context.getSystemService(Context.USER_SERVICE))
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.getUsers().size() > 1;
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}
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private static int getScreenType(Context context) {
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if (sDeviceType == -1) {
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WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
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DisplayInfo outDisplayInfo = new DisplayInfo();
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wm.getDefaultDisplay().getDisplayInfo(outDisplayInfo);
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int shortSize = Math.min(outDisplayInfo.logicalHeight, outDisplayInfo.logicalWidth);
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int shortSizeDp = shortSize * DisplayMetrics.DENSITY_DEFAULT
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/ outDisplayInfo.logicalDensityDpi;
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if (shortSizeDp < 600) {
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// 0-599dp: "phone" UI with a separate status & navigation bar
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sDeviceType = DEVICE_PHONE;
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} else if (shortSizeDp < 720) {
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// 600-719dp: "phone" UI with modifications for larger screens
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sDeviceType = DEVICE_HYBRID;
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} else {
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// 720dp: "tablet" UI with a single combined status & navigation bar
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sDeviceType = DEVICE_TABLET;
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}
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}
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return sDeviceType;
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}
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public static boolean isPhone(Context context) {
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return getScreenType(context) == DEVICE_PHONE;
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}
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public static boolean isHybrid(Context context) {
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return getScreenType(context) == DEVICE_HYBRID;
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}
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public static boolean isTablet(Context context) {
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return getScreenType(context) == DEVICE_TABLET;
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}
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/**
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* Determine whether a package is a "system package", in which case certain things (like
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* disabling notifications or disabling the package altogether) should be disallowed.
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*/
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public static boolean isSystemPackage(PackageManager pm, PackageInfo pkg) {
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if (sSystemSignature == null) {
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sSystemSignature = new Signature[]{ getSystemSignature(pm) };
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}
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return sSystemSignature[0] != null && sSystemSignature[0].equals(getFirstSignature(pkg));
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}
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private static Signature[] sSystemSignature;
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private static Signature getFirstSignature(PackageInfo pkg) {
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if (pkg != null && pkg.signatures != null && pkg.signatures.length > 0) {
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return pkg.signatures[0];
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}
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return null;
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}
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private static Signature getSystemSignature(PackageManager pm) {
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try {
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final PackageInfo sys = pm.getPackageInfo("android", PackageManager.GET_SIGNATURES);
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return getFirstSignature(sys);
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} catch (NameNotFoundException e) {
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}
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return null;
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}
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public static boolean isPackageInstalled(Context context, String pkg, boolean ignoreState) {
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if (pkg != null) {
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try {
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PackageInfo pi = context.getPackageManager().getPackageInfo(pkg, 0);
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if (!pi.applicationInfo.enabled && !ignoreState) {
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return false;
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}
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} catch (NameNotFoundException e) {
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return false;
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}
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}
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return true;
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}
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public static boolean isPackageInstalled(Context context, String pkg) {
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return isPackageInstalled(context, pkg, true);
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}
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/**
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* Locks the activity orientation to the current device orientation
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* @param activity
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*/
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public static void lockCurrentOrientation(Activity activity) {
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int currentRotation = activity.getWindowManager().getDefaultDisplay().getRotation();
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int orientation = activity.getResources().getConfiguration().orientation;
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int frozenRotation = 0;
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switch (currentRotation) {
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case Surface.ROTATION_0:
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frozenRotation = orientation == Configuration.ORIENTATION_LANDSCAPE
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? ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE
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: ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;
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break;
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case Surface.ROTATION_90:
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frozenRotation = orientation == Configuration.ORIENTATION_PORTRAIT
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? ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT
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: ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;
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break;
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case Surface.ROTATION_180:
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frozenRotation = orientation == Configuration.ORIENTATION_LANDSCAPE
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? ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE
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: ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT;
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break;
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case Surface.ROTATION_270:
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frozenRotation = orientation == Configuration.ORIENTATION_PORTRAIT
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? ActivityInfo.SCREEN_ORIENTATION_PORTRAIT
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: ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE;
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break;
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}
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activity.setRequestedOrientation(frozenRotation);
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}
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public static boolean deviceSupportsFlashLight(Context context) {
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CameraManager cameraManager = (CameraManager) context.getSystemService(
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Context.CAMERA_SERVICE);
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try {
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String[] ids = cameraManager.getCameraIdList();
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for (String id : ids) {
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CameraCharacteristics c = cameraManager.getCameraCharacteristics(id);
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Boolean flashAvailable = c.get(CameraCharacteristics.FLASH_INFO_AVAILABLE);
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Integer lensFacing = c.get(CameraCharacteristics.LENS_FACING);
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if (flashAvailable != null
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&& flashAvailable
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&& lensFacing != null
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&& lensFacing == CameraCharacteristics.LENS_FACING_BACK) {
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return true;
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}
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}
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} catch (CameraAccessException e) {
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// Ignore
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}
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return false;
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}
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}
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