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package com.android.settingslib;
import android.annotation.ColorInt;
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.content.res.TypedArray;
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 android.print.PrintManager;
import com.android.internal.util.UserIcons;
import com.android.settingslib.drawable.UserIconDrawable;
import java.text.NumberFormat;
public class Utils {
private static Signature[] sSystemSignature;
private static String sPermissionControllerPackageName;
private static String sServicesSystemSharedLibPackageName;
private static String sSharedSystemSharedLibPackageName;
/**
* 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;
}
@ColorInt
public static int getColorAccent(Context context) {
TypedArray ta = context.obtainStyledAttributes(new int[]{android.R.attr.colorAccent});
@ColorInt int colorAccent = ta.getColor(0, 0);
ta.recycle();
return colorAccent;
}
/**
* 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(Resources resources, PackageManager pm, PackageInfo pkg) {
if (sSystemSignature == null) {
sSystemSignature = new Signature[]{ getSystemSignature(pm) };
}
if (sPermissionControllerPackageName == null) {
sPermissionControllerPackageName = pm.getPermissionControllerPackageName();
}
if (sServicesSystemSharedLibPackageName == null) {
sServicesSystemSharedLibPackageName = pm.getServicesSystemSharedLibraryPackageName();
}
if (sSharedSystemSharedLibPackageName == null) {
sSharedSystemSharedLibPackageName = pm.getSharedSystemSharedLibraryPackageName();
}
return (sSystemSignature[0] != null
&& sSystemSignature[0].equals(getFirstSignature(pkg)))
|| pkg.packageName.equals(sPermissionControllerPackageName)
|| pkg.packageName.equals(sServicesSystemSharedLibPackageName)
|| pkg.packageName.equals(sSharedSystemSharedLibPackageName)
|| pkg.packageName.equals(PrintManager.PRINT_SPOOLER_PACKAGE_NAME)
|| isDeviceProvisioningPackage(resources, pkg.packageName);
}
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;
}
/**
* Returns {@code true} if the supplied package is the device provisioning app. Otherwise,
* returns {@code false}.
*/
public static boolean isDeviceProvisioningPackage(Resources resources, String packageName) {
String deviceProvisioningPackage = resources.getString(
com.android.internal.R.string.config_deviceProvisioningPackage);
return deviceProvisioningPackage != null && deviceProvisioningPackage.equals(packageName);
}
}
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