| package com.android.settingslib; |
| |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.PackageManager.NameNotFoundException; |
| import android.content.pm.UserInfo; |
| import android.content.pm.Signature; |
| import android.content.res.Resources; |
| import android.graphics.Bitmap; |
| import android.graphics.BitmapFactory; |
| import android.graphics.drawable.Drawable; |
| import android.net.ConnectivityManager; |
| import android.os.BatteryManager; |
| import android.os.UserManager; |
| import com.android.internal.util.UserIcons; |
| import com.android.settingslib.drawable.UserIconDrawable; |
| |
| import java.text.NumberFormat; |
| |
| public class Utils { |
| |
| /** |
| * Return string resource that best describes combination of tethering |
| * options available on this device. |
| */ |
| public static int getTetheringLabel(ConnectivityManager cm) { |
| String[] usbRegexs = cm.getTetherableUsbRegexs(); |
| String[] wifiRegexs = cm.getTetherableWifiRegexs(); |
| String[] bluetoothRegexs = cm.getTetherableBluetoothRegexs(); |
| |
| boolean usbAvailable = usbRegexs.length != 0; |
| boolean wifiAvailable = wifiRegexs.length != 0; |
| boolean bluetoothAvailable = bluetoothRegexs.length != 0; |
| |
| if (wifiAvailable && usbAvailable && bluetoothAvailable) { |
| return R.string.tether_settings_title_all; |
| } else if (wifiAvailable && usbAvailable) { |
| return R.string.tether_settings_title_all; |
| } else if (wifiAvailable && bluetoothAvailable) { |
| return R.string.tether_settings_title_all; |
| } else if (wifiAvailable) { |
| return R.string.tether_settings_title_wifi; |
| } else if (usbAvailable && bluetoothAvailable) { |
| return R.string.tether_settings_title_usb_bluetooth; |
| } else if (usbAvailable) { |
| return R.string.tether_settings_title_usb; |
| } else { |
| return R.string.tether_settings_title_bluetooth; |
| } |
| } |
| |
| /** |
| * Returns a label for the user, in the form of "User: user name" or "Work profile". |
| */ |
| public static String getUserLabel(Context context, UserInfo info) { |
| String name = info != null ? info.name : null; |
| if (info.isManagedProfile()) { |
| // We use predefined values for managed profiles |
| return context.getString(R.string.managed_user_title); |
| } else if (info.isGuest()) { |
| name = context.getString(R.string.user_guest); |
| } |
| if (name == null && info != null) { |
| name = Integer.toString(info.id); |
| } else if (info == null) { |
| name = context.getString(R.string.unknown); |
| } |
| return context.getResources().getString(R.string.running_process_item_user_label, name); |
| } |
| |
| /** |
| * Returns a circular icon for a user. |
| */ |
| public static UserIconDrawable getUserIcon(Context context, UserManager um, UserInfo user) { |
| final int iconSize = UserIconDrawable.getSizeForList(context); |
| if (user.isManagedProfile()) { |
| // We use predefined values for managed profiles |
| Bitmap b = BitmapFactory.decodeResource(context.getResources(), |
| com.android.internal.R.drawable.ic_corp_icon); |
| return new UserIconDrawable(iconSize).setIcon(b).bake(); |
| } |
| if (user.iconPath != null) { |
| Bitmap icon = um.getUserIcon(user.id); |
| if (icon != null) { |
| return new UserIconDrawable(iconSize).setIcon(icon).bake(); |
| } |
| } |
| return new UserIconDrawable(iconSize).setIconDrawable( |
| UserIcons.getDefaultUserIcon(user.id, /* light= */ false)).bake(); |
| } |
| |
| /** Formats the ratio of amount/total as a percentage. */ |
| public static String formatPercentage(long amount, long total) { |
| return formatPercentage(((double) amount) / total); |
| } |
| |
| /** Formats an integer from 0..100 as a percentage. */ |
| public static String formatPercentage(int percentage) { |
| return formatPercentage(((double) percentage) / 100.0); |
| } |
| |
| /** Formats a double from 0.0..1.0 as a percentage. */ |
| private static String formatPercentage(double percentage) { |
| return NumberFormat.getPercentInstance().format(percentage); |
| } |
| |
| public static int getBatteryLevel(Intent batteryChangedIntent) { |
| int level = batteryChangedIntent.getIntExtra(BatteryManager.EXTRA_LEVEL, 0); |
| int scale = batteryChangedIntent.getIntExtra(BatteryManager.EXTRA_SCALE, 100); |
| return (level * 100) / scale; |
| } |
| |
| public static String getBatteryStatus(Resources res, Intent batteryChangedIntent) { |
| return Utils.getBatteryStatus(res, batteryChangedIntent, false); |
| } |
| |
| public static String getBatteryStatus(Resources res, Intent batteryChangedIntent, |
| boolean shortString) { |
| int plugType = batteryChangedIntent.getIntExtra(BatteryManager.EXTRA_PLUGGED, 0); |
| int status = batteryChangedIntent.getIntExtra(BatteryManager.EXTRA_STATUS, |
| BatteryManager.BATTERY_STATUS_UNKNOWN); |
| String statusString; |
| if (status == BatteryManager.BATTERY_STATUS_CHARGING) { |
| int resId; |
| if (plugType == BatteryManager.BATTERY_PLUGGED_AC) { |
| resId = shortString ? R.string.battery_info_status_charging_ac_short |
| : R.string.battery_info_status_charging_ac; |
| } else if (plugType == BatteryManager.BATTERY_PLUGGED_USB) { |
| resId = shortString ? R.string.battery_info_status_charging_usb_short |
| : R.string.battery_info_status_charging_usb; |
| } else if (plugType == BatteryManager.BATTERY_PLUGGED_WIRELESS) { |
| resId = shortString ? R.string.battery_info_status_charging_wireless_short |
| : R.string.battery_info_status_charging_wireless; |
| } else { |
| resId = R.string.battery_info_status_charging; |
| } |
| statusString = res.getString(resId); |
| } else if (status == BatteryManager.BATTERY_STATUS_DISCHARGING) { |
| statusString = res.getString(R.string.battery_info_status_discharging); |
| } else if (status == BatteryManager.BATTERY_STATUS_NOT_CHARGING) { |
| statusString = res.getString(R.string.battery_info_status_not_charging); |
| } else if (status == BatteryManager.BATTERY_STATUS_FULL) { |
| statusString = res.getString(R.string.battery_info_status_full); |
| } else { |
| statusString = res.getString(R.string.battery_info_status_unknown); |
| } |
| |
| return statusString; |
| } |
| |
| /** |
| * Determine whether a package is a "system package", in which case certain things (like |
| * disabling notifications or disabling the package altogether) should be disallowed. |
| */ |
| public static boolean isSystemPackage(PackageManager pm, PackageInfo pkg) { |
| if (sSystemSignature == null) { |
| sSystemSignature = new Signature[]{ getSystemSignature(pm) }; |
| } |
| if (sPermissionControllerPackageName == null) { |
| sPermissionControllerPackageName = pm.getPermissionControllerPackageName(); |
| } |
| return (sSystemSignature[0] != null |
| && sSystemSignature[0].equals(getFirstSignature(pkg))) |
| || (sPermissionControllerPackageName != null |
| && sPermissionControllerPackageName.equals(pkg.packageName)); |
| } |
| |
| private static Signature[] sSystemSignature; |
| private static String sPermissionControllerPackageName; |
| |
| private static Signature getFirstSignature(PackageInfo pkg) { |
| if (pkg != null && pkg.signatures != null && pkg.signatures.length > 0) { |
| return pkg.signatures[0]; |
| } |
| return null; |
| } |
| |
| private static Signature getSystemSignature(PackageManager pm) { |
| try { |
| final PackageInfo sys = pm.getPackageInfo("android", PackageManager.GET_SIGNATURES); |
| return getFirstSignature(sys); |
| } catch (NameNotFoundException e) { |
| } |
| return null; |
| } |
| } |