You can acquire this object from {@link Resources}, using {@link * Resources#getConfiguration}. Thus, from an activity, you can get it by chaining the request * with {@link android.app.Activity#getResources}:
*Configuration config = getResources().getConfiguration();*/ public final class Configuration implements Parcelable, Comparable
The {@link #SCREENLAYOUT_SIZE_MASK} bits define the overall size * of the screen. They may be one of * {@link #SCREENLAYOUT_SIZE_SMALL}, {@link #SCREENLAYOUT_SIZE_NORMAL}, * {@link #SCREENLAYOUT_SIZE_LARGE}, or {@link #SCREENLAYOUT_SIZE_XLARGE}. * *
The {@link #SCREENLAYOUT_LONG_MASK} defines whether the screen * is wider/taller than normal. They may be one of * {@link #SCREENLAYOUT_LONG_NO} or {@link #SCREENLAYOUT_LONG_YES}. * *
The {@link #SCREENLAYOUT_LAYOUTDIR_MASK} defines whether the screen layout * is either LTR or RTL. They may be one of * {@link #SCREENLAYOUT_LAYOUTDIR_LTR} or {@link #SCREENLAYOUT_LAYOUTDIR_RTL}. * *
See Supporting * Multiple Screens for more information. */ public int screenLayout; /** @hide */ static public int resetScreenLayout(int curLayout) { return (curLayout&~(SCREENLAYOUT_LONG_MASK | SCREENLAYOUT_SIZE_MASK | SCREENLAYOUT_COMPAT_NEEDED)) | (SCREENLAYOUT_LONG_YES | SCREENLAYOUT_SIZE_XLARGE); } /** @hide */ static public int reduceScreenLayout(int curLayout, int longSizeDp, int shortSizeDp) { int screenLayoutSize; boolean screenLayoutLong; boolean screenLayoutCompatNeeded; // These semi-magic numbers define our compatibility modes for // applications with different screens. These are guarantees to // app developers about the space they can expect for a particular // configuration. DO NOT CHANGE! if (longSizeDp < 470) { // This is shorter than an HVGA normal density screen (which // is 480 pixels on its long side). screenLayoutSize = SCREENLAYOUT_SIZE_SMALL; screenLayoutLong = false; screenLayoutCompatNeeded = false; } else { // What size is this screen screen? if (longSizeDp >= 960 && shortSizeDp >= 720) { // 1.5xVGA or larger screens at medium density are the point // at which we consider it to be an extra large screen. screenLayoutSize = SCREENLAYOUT_SIZE_XLARGE; } else if (longSizeDp >= 640 && shortSizeDp >= 480) { // VGA or larger screens at medium density are the point // at which we consider it to be a large screen. screenLayoutSize = SCREENLAYOUT_SIZE_LARGE; } else { screenLayoutSize = SCREENLAYOUT_SIZE_NORMAL; } // If this screen is wider than normal HVGA, or taller // than FWVGA, then for old apps we want to run in size // compatibility mode. if (shortSizeDp > 321 || longSizeDp > 570) { screenLayoutCompatNeeded = true; } else { screenLayoutCompatNeeded = false; } // Is this a long screen? if (((longSizeDp*3)/5) >= (shortSizeDp-1)) { // Anything wider than WVGA (5:3) is considering to be long. screenLayoutLong = true; } else { screenLayoutLong = false; } } // Now reduce the last screenLayout to not be better than what we // have found. if (!screenLayoutLong) { curLayout = (curLayout&~SCREENLAYOUT_LONG_MASK) | SCREENLAYOUT_LONG_NO; } if (screenLayoutCompatNeeded) { curLayout |= Configuration.SCREENLAYOUT_COMPAT_NEEDED; } int curSize = curLayout&SCREENLAYOUT_SIZE_MASK; if (screenLayoutSize < curSize) { curLayout = (curLayout&~SCREENLAYOUT_SIZE_MASK) | screenLayoutSize; } return curLayout; } /** * Check if the Configuration's current {@link #screenLayout} is at * least the given size. * * @param size The desired size, either {@link #SCREENLAYOUT_SIZE_SMALL}, * {@link #SCREENLAYOUT_SIZE_NORMAL}, {@link #SCREENLAYOUT_SIZE_LARGE}, or * {@link #SCREENLAYOUT_SIZE_XLARGE}. * @return Returns true if the current screen layout size is at least * the given size. */ public boolean isLayoutSizeAtLeast(int size) { int cur = screenLayout&SCREENLAYOUT_SIZE_MASK; if (cur == SCREENLAYOUT_SIZE_UNDEFINED) return false; return cur >= size; } /** Constant for {@link #touchscreen}: a value indicating that no value has been set. */ public static final int TOUCHSCREEN_UNDEFINED = 0; /** Constant for {@link #touchscreen}, value corresponding to the * notouch * resource qualifier. */ public static final int TOUCHSCREEN_NOTOUCH = 1; /** @deprecated Not currently supported or used. */ @Deprecated public static final int TOUCHSCREEN_STYLUS = 2; /** Constant for {@link #touchscreen}, value corresponding to the * finger * resource qualifier. */ public static final int TOUCHSCREEN_FINGER = 3; /** * The kind of touch screen attached to the device. * One of: {@link #TOUCHSCREEN_NOTOUCH}, {@link #TOUCHSCREEN_FINGER}. */ public int touchscreen; /** Constant for {@link #keyboard}: a value indicating that no value has been set. */ public static final int KEYBOARD_UNDEFINED = 0; /** Constant for {@link #keyboard}, value corresponding to the * nokeys * resource qualifier. */ public static final int KEYBOARD_NOKEYS = 1; /** Constant for {@link #keyboard}, value corresponding to the * qwerty * resource qualifier. */ public static final int KEYBOARD_QWERTY = 2; /** Constant for {@link #keyboard}, value corresponding to the * 12key * resource qualifier. */ public static final int KEYBOARD_12KEY = 3; /** * The kind of keyboard attached to the device. * One of: {@link #KEYBOARD_NOKEYS}, {@link #KEYBOARD_QWERTY}, * {@link #KEYBOARD_12KEY}. */ public int keyboard; /** Constant for {@link #keyboardHidden}: a value indicating that no value has been set. */ public static final int KEYBOARDHIDDEN_UNDEFINED = 0; /** Constant for {@link #keyboardHidden}, value corresponding to the * keysexposed * resource qualifier. */ public static final int KEYBOARDHIDDEN_NO = 1; /** Constant for {@link #keyboardHidden}, value corresponding to the * keyshidden * resource qualifier. */ public static final int KEYBOARDHIDDEN_YES = 2; /** Constant matching actual resource implementation. {@hide} */ public static final int KEYBOARDHIDDEN_SOFT = 3; /** * A flag indicating whether any keyboard is available. Unlike * {@link #hardKeyboardHidden}, this also takes into account a soft * keyboard, so if the hard keyboard is hidden but there is soft * keyboard available, it will be set to NO. Value is one of: * {@link #KEYBOARDHIDDEN_NO}, {@link #KEYBOARDHIDDEN_YES}. */ public int keyboardHidden; /** Constant for {@link #hardKeyboardHidden}: a value indicating that no value has been set. */ public static final int HARDKEYBOARDHIDDEN_UNDEFINED = 0; /** Constant for {@link #hardKeyboardHidden}, value corresponding to the * physical keyboard being exposed. */ public static final int HARDKEYBOARDHIDDEN_NO = 1; /** Constant for {@link #hardKeyboardHidden}, value corresponding to the * physical keyboard being hidden. */ public static final int HARDKEYBOARDHIDDEN_YES = 2; /** * A flag indicating whether the hard keyboard has been hidden. This will * be set on a device with a mechanism to hide the keyboard from the * user, when that mechanism is closed. One of: * {@link #HARDKEYBOARDHIDDEN_NO}, {@link #HARDKEYBOARDHIDDEN_YES}. */ public int hardKeyboardHidden; /** Constant for {@link #navigation}: a value indicating that no value has been set. */ public static final int NAVIGATION_UNDEFINED = 0; /** Constant for {@link #navigation}, value corresponding to the * nonav * resource qualifier. */ public static final int NAVIGATION_NONAV = 1; /** Constant for {@link #navigation}, value corresponding to the * dpad * resource qualifier. */ public static final int NAVIGATION_DPAD = 2; /** Constant for {@link #navigation}, value corresponding to the * trackball * resource qualifier. */ public static final int NAVIGATION_TRACKBALL = 3; /** Constant for {@link #navigation}, value corresponding to the * wheel * resource qualifier. */ public static final int NAVIGATION_WHEEL = 4; /** * The kind of navigation method available on the device. * One of: {@link #NAVIGATION_NONAV}, {@link #NAVIGATION_DPAD}, * {@link #NAVIGATION_TRACKBALL}, {@link #NAVIGATION_WHEEL}. */ public int navigation; /** Constant for {@link #navigationHidden}: a value indicating that no value has been set. */ public static final int NAVIGATIONHIDDEN_UNDEFINED = 0; /** Constant for {@link #navigationHidden}, value corresponding to the * navexposed * resource qualifier. */ public static final int NAVIGATIONHIDDEN_NO = 1; /** Constant for {@link #navigationHidden}, value corresponding to the * navhidden * resource qualifier. */ public static final int NAVIGATIONHIDDEN_YES = 2; /** * A flag indicating whether any 5-way or DPAD navigation available. * This will be set on a device with a mechanism to hide the navigation * controls from the user, when that mechanism is closed. One of: * {@link #NAVIGATIONHIDDEN_NO}, {@link #NAVIGATIONHIDDEN_YES}. */ public int navigationHidden; /** Constant for {@link #orientation}: a value indicating that no value has been set. */ public static final int ORIENTATION_UNDEFINED = 0; /** Constant for {@link #orientation}, value corresponding to the * port * resource qualifier. */ public static final int ORIENTATION_PORTRAIT = 1; /** Constant for {@link #orientation}, value corresponding to the * land * resource qualifier. */ public static final int ORIENTATION_LANDSCAPE = 2; /** @deprecated Not currently supported or used. */ @Deprecated public static final int ORIENTATION_SQUARE = 3; /** * Overall orientation of the screen. May be one of * {@link #ORIENTATION_LANDSCAPE}, {@link #ORIENTATION_PORTRAIT}. */ public int orientation; /** Constant for {@link #uiMode}: bits that encode the mode type. */ public static final int UI_MODE_TYPE_MASK = 0x0f; /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} * value indicating that no mode type has been set. */ public static final int UI_MODE_TYPE_UNDEFINED = 0x00; /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} * value that corresponds to * no * UI mode resource qualifier specified. */ public static final int UI_MODE_TYPE_NORMAL = 0x01; /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} * value that corresponds to the * desk * resource qualifier. */ public static final int UI_MODE_TYPE_DESK = 0x02; /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} * value that corresponds to the * car * resource qualifier. */ public static final int UI_MODE_TYPE_CAR = 0x03; /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} * value that corresponds to the * television * resource qualifier. */ public static final int UI_MODE_TYPE_TELEVISION = 0x04; /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} * value that corresponds to the * appliance * resource qualifier. */ public static final int UI_MODE_TYPE_APPLIANCE = 0x05; /** Constant for {@link #uiMode}: bits that encode the night mode. */ public static final int UI_MODE_NIGHT_MASK = 0x30; /** Constant for {@link #uiMode}: a {@link #UI_MODE_NIGHT_MASK} * value indicating that no mode type has been set. */ public static final int UI_MODE_NIGHT_UNDEFINED = 0x00; /** Constant for {@link #uiMode}: a {@link #UI_MODE_NIGHT_MASK} * value that corresponds to the * notnight * resource qualifier. */ public static final int UI_MODE_NIGHT_NO = 0x10; /** Constant for {@link #uiMode}: a {@link #UI_MODE_NIGHT_MASK} * value that corresponds to the * night * resource qualifier. */ public static final int UI_MODE_NIGHT_YES = 0x20; /** * Bit mask of the ui mode. Currently there are two fields: *
The {@link #UI_MODE_TYPE_MASK} bits define the overall ui mode of the * device. They may be one of {@link #UI_MODE_TYPE_UNDEFINED}, * {@link #UI_MODE_TYPE_NORMAL}, {@link #UI_MODE_TYPE_DESK}, * {@link #UI_MODE_TYPE_CAR}, {@link #UI_MODE_TYPE_TELEVISION}, or * {@link #UI_MODE_TYPE_APPLIANCE}. * *
The {@link #UI_MODE_NIGHT_MASK} defines whether the screen
* is in a special mode. They may be one of {@link #UI_MODE_NIGHT_UNDEFINED},
* {@link #UI_MODE_NIGHT_NO} or {@link #UI_MODE_NIGHT_YES}.
*/
public int uiMode;
/**
* Default value for {@link #screenWidthDp} indicating that no width
* has been specified.
*/
public static final int SCREEN_WIDTH_DP_UNDEFINED = 0;
/**
* The current width of the available screen space, in dp units,
* corresponding to
* screen
* width resource qualifier. Set to
* {@link #SCREEN_WIDTH_DP_UNDEFINED} if no width is specified.
*/
public int screenWidthDp;
/**
* Default value for {@link #screenHeightDp} indicating that no width
* has been specified.
*/
public static final int SCREEN_HEIGHT_DP_UNDEFINED = 0;
/**
* The current height of the available screen space, in dp units,
* corresponding to
* screen
* height resource qualifier. Set to
* {@link #SCREEN_HEIGHT_DP_UNDEFINED} if no height is specified.
*/
public int screenHeightDp;
/**
* Default value for {@link #smallestScreenWidthDp} indicating that no width
* has been specified.
*/
public static final int SMALLEST_SCREEN_WIDTH_DP_UNDEFINED = 0;
/**
* The smallest screen size an application will see in normal operation,
* corresponding to
* smallest
* screen width resource qualifier.
* This is the smallest value of both screenWidthDp and screenHeightDp
* in both portrait and landscape. Set to
* {@link #SMALLEST_SCREEN_WIDTH_DP_UNDEFINED} if no width is specified.
*/
public int smallestScreenWidthDp;
/**
* Default value for {@link #densityDpi} indicating that no width
* has been specified.
*/
public static final int DENSITY_DPI_UNDEFINED = 0;
/**
* The target screen density being rendered to,
* corresponding to
* density
* resource qualifier. Set to
* {@link #DENSITY_DPI_UNDEFINED} if no density is specified.
*/
public int densityDpi;
/** @hide Hack to get this information from WM to app running in compat mode. */
public int compatScreenWidthDp;
/** @hide Hack to get this information from WM to app running in compat mode. */
public int compatScreenHeightDp;
/** @hide Hack to get this information from WM to app running in compat mode. */
public int compatSmallestScreenWidthDp;
/**
* @hide Internal book-keeping.
*/
public int seq;
/**
* Construct an invalid Configuration. You must call {@link #setToDefaults}
* for this object to be valid. {@more}
*/
public Configuration() {
setToDefaults();
}
/**
* Makes a deep copy suitable for modification.
*/
public Configuration(Configuration o) {
setTo(o);
}
public void setTo(Configuration o) {
fontScale = o.fontScale;
mcc = o.mcc;
mnc = o.mnc;
if (o.locale != null) {
locale = (Locale) o.locale.clone();
}
userSetLocale = o.userSetLocale;
touchscreen = o.touchscreen;
keyboard = o.keyboard;
keyboardHidden = o.keyboardHidden;
hardKeyboardHidden = o.hardKeyboardHidden;
navigation = o.navigation;
navigationHidden = o.navigationHidden;
orientation = o.orientation;
screenLayout = o.screenLayout;
uiMode = o.uiMode;
screenWidthDp = o.screenWidthDp;
screenHeightDp = o.screenHeightDp;
smallestScreenWidthDp = o.smallestScreenWidthDp;
densityDpi = o.densityDpi;
compatScreenWidthDp = o.compatScreenWidthDp;
compatScreenHeightDp = o.compatScreenHeightDp;
compatSmallestScreenWidthDp = o.compatSmallestScreenWidthDp;
seq = o.seq;
}
public String toString() {
StringBuilder sb = new StringBuilder(128);
sb.append("{");
sb.append(fontScale);
sb.append(" ");
if (mcc != 0) {
sb.append(mcc);
sb.append("mcc");
} else {
sb.append("?mcc");
}
if (mnc != 0) {
sb.append(mnc);
sb.append("mnc");
} else {
sb.append("?mnc");
}
if (locale != null) {
sb.append(" ");
sb.append(locale);
} else {
sb.append(" ?locale");
}
int layoutDir = (screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK);
switch (layoutDir) {
case SCREENLAYOUT_LAYOUTDIR_UNDEFINED: sb.append(" ?layoutDir"); break;
case SCREENLAYOUT_LAYOUTDIR_LTR: sb.append(" ldltr"); break;
case SCREENLAYOUT_LAYOUTDIR_RTL: sb.append(" ldrtl"); break;
default: sb.append(" layoutDir=");
sb.append(layoutDir >> SCREENLAYOUT_LAYOUTDIR_SHIFT); break;
}
if (smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) {
sb.append(" sw"); sb.append(smallestScreenWidthDp); sb.append("dp");
} else {
sb.append(" ?swdp");
}
if (screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED) {
sb.append(" w"); sb.append(screenWidthDp); sb.append("dp");
} else {
sb.append(" ?wdp");
}
if (screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED) {
sb.append(" h"); sb.append(screenHeightDp); sb.append("dp");
} else {
sb.append(" ?hdp");
}
if (densityDpi != DENSITY_DPI_UNDEFINED) {
sb.append(" "); sb.append(densityDpi); sb.append("dpi");
} else {
sb.append(" ?density");
}
switch ((screenLayout&SCREENLAYOUT_SIZE_MASK)) {
case SCREENLAYOUT_SIZE_UNDEFINED: sb.append(" ?lsize"); break;
case SCREENLAYOUT_SIZE_SMALL: sb.append(" smll"); break;
case SCREENLAYOUT_SIZE_NORMAL: sb.append(" nrml"); break;
case SCREENLAYOUT_SIZE_LARGE: sb.append(" lrg"); break;
case SCREENLAYOUT_SIZE_XLARGE: sb.append(" xlrg"); break;
default: sb.append(" layoutSize=");
sb.append(screenLayout&SCREENLAYOUT_SIZE_MASK); break;
}
switch ((screenLayout&SCREENLAYOUT_LONG_MASK)) {
case SCREENLAYOUT_LONG_UNDEFINED: sb.append(" ?long"); break;
case SCREENLAYOUT_LONG_NO: /* not-long is not interesting to print */ break;
case SCREENLAYOUT_LONG_YES: sb.append(" long"); break;
default: sb.append(" layoutLong=");
sb.append(screenLayout&SCREENLAYOUT_LONG_MASK); break;
}
switch (orientation) {
case ORIENTATION_UNDEFINED: sb.append(" ?orien"); break;
case ORIENTATION_LANDSCAPE: sb.append(" land"); break;
case ORIENTATION_PORTRAIT: sb.append(" port"); break;
default: sb.append(" orien="); sb.append(orientation); break;
}
switch ((uiMode&UI_MODE_TYPE_MASK)) {
case UI_MODE_TYPE_UNDEFINED: sb.append(" ?uimode"); break;
case UI_MODE_TYPE_NORMAL: /* normal is not interesting to print */ break;
case UI_MODE_TYPE_DESK: sb.append(" desk"); break;
case UI_MODE_TYPE_CAR: sb.append(" car"); break;
case UI_MODE_TYPE_TELEVISION: sb.append(" television"); break;
case UI_MODE_TYPE_APPLIANCE: sb.append(" appliance"); break;
default: sb.append(" uimode="); sb.append(uiMode&UI_MODE_TYPE_MASK); break;
}
switch ((uiMode&UI_MODE_NIGHT_MASK)) {
case UI_MODE_NIGHT_UNDEFINED: sb.append(" ?night"); break;
case UI_MODE_NIGHT_NO: /* not-night is not interesting to print */ break;
case UI_MODE_NIGHT_YES: sb.append(" night"); break;
default: sb.append(" night="); sb.append(uiMode&UI_MODE_NIGHT_MASK); break;
}
switch (touchscreen) {
case TOUCHSCREEN_UNDEFINED: sb.append(" ?touch"); break;
case TOUCHSCREEN_NOTOUCH: sb.append(" -touch"); break;
case TOUCHSCREEN_STYLUS: sb.append(" stylus"); break;
case TOUCHSCREEN_FINGER: sb.append(" finger"); break;
default: sb.append(" touch="); sb.append(touchscreen); break;
}
switch (keyboard) {
case KEYBOARD_UNDEFINED: sb.append(" ?keyb"); break;
case KEYBOARD_NOKEYS: sb.append(" -keyb"); break;
case KEYBOARD_QWERTY: sb.append(" qwerty"); break;
case KEYBOARD_12KEY: sb.append(" 12key"); break;
default: sb.append(" keys="); sb.append(keyboard); break;
}
switch (keyboardHidden) {
case KEYBOARDHIDDEN_UNDEFINED: sb.append("/?"); break;
case KEYBOARDHIDDEN_NO: sb.append("/v"); break;
case KEYBOARDHIDDEN_YES: sb.append("/h"); break;
case KEYBOARDHIDDEN_SOFT: sb.append("/s"); break;
default: sb.append("/"); sb.append(keyboardHidden); break;
}
switch (hardKeyboardHidden) {
case HARDKEYBOARDHIDDEN_UNDEFINED: sb.append("/?"); break;
case HARDKEYBOARDHIDDEN_NO: sb.append("/v"); break;
case HARDKEYBOARDHIDDEN_YES: sb.append("/h"); break;
default: sb.append("/"); sb.append(hardKeyboardHidden); break;
}
switch (navigation) {
case NAVIGATION_UNDEFINED: sb.append(" ?nav"); break;
case NAVIGATION_NONAV: sb.append(" -nav"); break;
case NAVIGATION_DPAD: sb.append(" dpad"); break;
case NAVIGATION_TRACKBALL: sb.append(" tball"); break;
case NAVIGATION_WHEEL: sb.append(" wheel"); break;
default: sb.append(" nav="); sb.append(navigation); break;
}
switch (navigationHidden) {
case NAVIGATIONHIDDEN_UNDEFINED: sb.append("/?"); break;
case NAVIGATIONHIDDEN_NO: sb.append("/v"); break;
case NAVIGATIONHIDDEN_YES: sb.append("/h"); break;
default: sb.append("/"); sb.append(navigationHidden); break;
}
if (seq != 0) {
sb.append(" s.");
sb.append(seq);
}
sb.append('}');
return sb.toString();
}
/**
* Set this object to the system defaults.
*/
public void setToDefaults() {
fontScale = 1;
mcc = mnc = 0;
locale = null;
userSetLocale = false;
touchscreen = TOUCHSCREEN_UNDEFINED;
keyboard = KEYBOARD_UNDEFINED;
keyboardHidden = KEYBOARDHIDDEN_UNDEFINED;
hardKeyboardHidden = HARDKEYBOARDHIDDEN_UNDEFINED;
navigation = NAVIGATION_UNDEFINED;
navigationHidden = NAVIGATIONHIDDEN_UNDEFINED;
orientation = ORIENTATION_UNDEFINED;
screenLayout = SCREENLAYOUT_UNDEFINED;
uiMode = UI_MODE_TYPE_UNDEFINED;
screenWidthDp = compatScreenWidthDp = SCREEN_WIDTH_DP_UNDEFINED;
screenHeightDp = compatScreenHeightDp = SCREEN_HEIGHT_DP_UNDEFINED;
smallestScreenWidthDp = compatSmallestScreenWidthDp = SMALLEST_SCREEN_WIDTH_DP_UNDEFINED;
densityDpi = DENSITY_DPI_UNDEFINED;
seq = 0;
}
/** {@hide} */
@Deprecated public void makeDefault() {
setToDefaults();
}
/**
* Copy the fields from delta into this Configuration object, keeping
* track of which ones have changed. Any undefined fields in
* delta are ignored and not copied in to the current
* Configuration.
* @return Returns a bit mask of the changed fields, as per
* {@link #diff}.
*/
public int updateFrom(Configuration delta) {
int changed = 0;
if (delta.fontScale > 0 && fontScale != delta.fontScale) {
changed |= ActivityInfo.CONFIG_FONT_SCALE;
fontScale = delta.fontScale;
}
if (delta.mcc != 0 && mcc != delta.mcc) {
changed |= ActivityInfo.CONFIG_MCC;
mcc = delta.mcc;
}
if (delta.mnc != 0 && mnc != delta.mnc) {
changed |= ActivityInfo.CONFIG_MNC;
mnc = delta.mnc;
}
if (delta.locale != null
&& (locale == null || !locale.equals(delta.locale))) {
changed |= ActivityInfo.CONFIG_LOCALE;
locale = delta.locale != null
? (Locale) delta.locale.clone() : null;
// If locale has changed, then layout direction is also changed ...
changed |= ActivityInfo.CONFIG_LAYOUT_DIRECTION;
// ... and we need to update the layout direction (represented by the first
// 2 most significant bits in screenLayout).
setLayoutDirection(locale);
}
if (delta.userSetLocale && (!userSetLocale || ((changed & ActivityInfo.CONFIG_LOCALE) != 0)))
{
userSetLocale = true;
changed |= ActivityInfo.CONFIG_LOCALE;
}
if (delta.touchscreen != TOUCHSCREEN_UNDEFINED
&& touchscreen != delta.touchscreen) {
changed |= ActivityInfo.CONFIG_TOUCHSCREEN;
touchscreen = delta.touchscreen;
}
if (delta.keyboard != KEYBOARD_UNDEFINED
&& keyboard != delta.keyboard) {
changed |= ActivityInfo.CONFIG_KEYBOARD;
keyboard = delta.keyboard;
}
if (delta.keyboardHidden != KEYBOARDHIDDEN_UNDEFINED
&& keyboardHidden != delta.keyboardHidden) {
changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN;
keyboardHidden = delta.keyboardHidden;
}
if (delta.hardKeyboardHidden != HARDKEYBOARDHIDDEN_UNDEFINED
&& hardKeyboardHidden != delta.hardKeyboardHidden) {
changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN;
hardKeyboardHidden = delta.hardKeyboardHidden;
}
if (delta.navigation != NAVIGATION_UNDEFINED
&& navigation != delta.navigation) {
changed |= ActivityInfo.CONFIG_NAVIGATION;
navigation = delta.navigation;
}
if (delta.navigationHidden != NAVIGATIONHIDDEN_UNDEFINED
&& navigationHidden != delta.navigationHidden) {
changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN;
navigationHidden = delta.navigationHidden;
}
if (delta.orientation != ORIENTATION_UNDEFINED
&& orientation != delta.orientation) {
changed |= ActivityInfo.CONFIG_ORIENTATION;
orientation = delta.orientation;
}
if (getScreenLayoutNoDirection(delta.screenLayout) !=
(SCREENLAYOUT_SIZE_UNDEFINED | SCREENLAYOUT_LONG_UNDEFINED)
&& (getScreenLayoutNoDirection(screenLayout) !=
getScreenLayoutNoDirection(delta.screenLayout))) {
changed |= ActivityInfo.CONFIG_SCREEN_LAYOUT;
// We need to preserve the previous layout dir bits if they were defined
if ((delta.screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK) == 0) {
screenLayout = (screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK)|delta.screenLayout;
} else {
screenLayout = delta.screenLayout;
}
}
if (delta.uiMode != (UI_MODE_TYPE_UNDEFINED|UI_MODE_NIGHT_UNDEFINED)
&& uiMode != delta.uiMode) {
changed |= ActivityInfo.CONFIG_UI_MODE;
if ((delta.uiMode&UI_MODE_TYPE_MASK) != UI_MODE_TYPE_UNDEFINED) {
uiMode = (uiMode&~UI_MODE_TYPE_MASK)
| (delta.uiMode&UI_MODE_TYPE_MASK);
}
if ((delta.uiMode&UI_MODE_NIGHT_MASK) != UI_MODE_NIGHT_UNDEFINED) {
uiMode = (uiMode&~UI_MODE_NIGHT_MASK)
| (delta.uiMode&UI_MODE_NIGHT_MASK);
}
}
if (delta.screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED
&& screenWidthDp != delta.screenWidthDp) {
changed |= ActivityInfo.CONFIG_SCREEN_SIZE;
screenWidthDp = delta.screenWidthDp;
}
if (delta.screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED
&& screenHeightDp != delta.screenHeightDp) {
changed |= ActivityInfo.CONFIG_SCREEN_SIZE;
screenHeightDp = delta.screenHeightDp;
}
if (delta.smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) {
changed |= ActivityInfo.CONFIG_SCREEN_SIZE;
smallestScreenWidthDp = delta.smallestScreenWidthDp;
}
if (delta.densityDpi != DENSITY_DPI_UNDEFINED) {
changed |= ActivityInfo.CONFIG_DENSITY;
densityDpi = delta.densityDpi;
}
if (delta.compatScreenWidthDp != SCREEN_WIDTH_DP_UNDEFINED) {
compatScreenWidthDp = delta.compatScreenWidthDp;
}
if (delta.compatScreenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED) {
compatScreenHeightDp = delta.compatScreenHeightDp;
}
if (delta.compatSmallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) {
compatSmallestScreenWidthDp = delta.compatSmallestScreenWidthDp;
}
if (delta.seq != 0) {
seq = delta.seq;
}
return changed;
}
/**
* Return a bit mask of the differences between this Configuration
* object and the given one. Does not change the values of either. Any
* undefined fields in delta are ignored.
* @return Returns a bit mask indicating which configuration
* values has changed, containing any combination of
* {@link android.content.pm.ActivityInfo#CONFIG_FONT_SCALE
* PackageManager.ActivityInfo.CONFIG_FONT_SCALE},
* {@link android.content.pm.ActivityInfo#CONFIG_MCC
* PackageManager.ActivityInfo.CONFIG_MCC},
* {@link android.content.pm.ActivityInfo#CONFIG_MNC
* PackageManager.ActivityInfo.CONFIG_MNC},
* {@link android.content.pm.ActivityInfo#CONFIG_LOCALE
* PackageManager.ActivityInfo.CONFIG_LOCALE},
* {@link android.content.pm.ActivityInfo#CONFIG_TOUCHSCREEN
* PackageManager.ActivityInfo.CONFIG_TOUCHSCREEN},
* {@link android.content.pm.ActivityInfo#CONFIG_KEYBOARD
* PackageManager.ActivityInfo.CONFIG_KEYBOARD},
* {@link android.content.pm.ActivityInfo#CONFIG_NAVIGATION
* PackageManager.ActivityInfo.CONFIG_NAVIGATION},
* {@link android.content.pm.ActivityInfo#CONFIG_ORIENTATION
* PackageManager.ActivityInfo.CONFIG_ORIENTATION},
* {@link android.content.pm.ActivityInfo#CONFIG_SCREEN_LAYOUT
* PackageManager.ActivityInfo.CONFIG_SCREEN_LAYOUT}, or
* {@link android.content.pm.ActivityInfo#CONFIG_SCREEN_SIZE
* PackageManager.ActivityInfo.CONFIG_SCREEN_SIZE}, or
* {@link android.content.pm.ActivityInfo#CONFIG_SMALLEST_SCREEN_SIZE
* PackageManager.ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE}.
* {@link android.content.pm.ActivityInfo#CONFIG_LAYOUT_DIRECTION
* PackageManager.ActivityInfo.CONFIG_LAYOUT_DIRECTION}.
*/
public int diff(Configuration delta) {
int changed = 0;
if (delta.fontScale > 0 && fontScale != delta.fontScale) {
changed |= ActivityInfo.CONFIG_FONT_SCALE;
}
if (delta.mcc != 0 && mcc != delta.mcc) {
changed |= ActivityInfo.CONFIG_MCC;
}
if (delta.mnc != 0 && mnc != delta.mnc) {
changed |= ActivityInfo.CONFIG_MNC;
}
if (delta.locale != null
&& (locale == null || !locale.equals(delta.locale))) {
changed |= ActivityInfo.CONFIG_LOCALE;
changed |= ActivityInfo.CONFIG_LAYOUT_DIRECTION;
}
if (delta.touchscreen != TOUCHSCREEN_UNDEFINED
&& touchscreen != delta.touchscreen) {
changed |= ActivityInfo.CONFIG_TOUCHSCREEN;
}
if (delta.keyboard != KEYBOARD_UNDEFINED
&& keyboard != delta.keyboard) {
changed |= ActivityInfo.CONFIG_KEYBOARD;
}
if (delta.keyboardHidden != KEYBOARDHIDDEN_UNDEFINED
&& keyboardHidden != delta.keyboardHidden) {
changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN;
}
if (delta.hardKeyboardHidden != HARDKEYBOARDHIDDEN_UNDEFINED
&& hardKeyboardHidden != delta.hardKeyboardHidden) {
changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN;
}
if (delta.navigation != NAVIGATION_UNDEFINED
&& navigation != delta.navigation) {
changed |= ActivityInfo.CONFIG_NAVIGATION;
}
if (delta.navigationHidden != NAVIGATIONHIDDEN_UNDEFINED
&& navigationHidden != delta.navigationHidden) {
changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN;
}
if (delta.orientation != ORIENTATION_UNDEFINED
&& orientation != delta.orientation) {
changed |= ActivityInfo.CONFIG_ORIENTATION;
}
if (getScreenLayoutNoDirection(delta.screenLayout) !=
(SCREENLAYOUT_SIZE_UNDEFINED | SCREENLAYOUT_LONG_UNDEFINED)
&& getScreenLayoutNoDirection(screenLayout) !=
getScreenLayoutNoDirection(delta.screenLayout)) {
changed |= ActivityInfo.CONFIG_SCREEN_LAYOUT;
}
if (delta.uiMode != (UI_MODE_TYPE_UNDEFINED|UI_MODE_NIGHT_UNDEFINED)
&& uiMode != delta.uiMode) {
changed |= ActivityInfo.CONFIG_UI_MODE;
}
if (delta.screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED
&& screenWidthDp != delta.screenWidthDp) {
changed |= ActivityInfo.CONFIG_SCREEN_SIZE;
}
if (delta.screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED
&& screenHeightDp != delta.screenHeightDp) {
changed |= ActivityInfo.CONFIG_SCREEN_SIZE;
}
if (delta.smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED
&& smallestScreenWidthDp != delta.smallestScreenWidthDp) {
changed |= ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE;
}
if (delta.densityDpi != DENSITY_DPI_UNDEFINED
&& densityDpi != delta.densityDpi) {
changed |= ActivityInfo.CONFIG_DENSITY;
}
return changed;
}
/**
* Determine if a new resource needs to be loaded from the bit set of
* configuration changes returned by {@link #updateFrom(Configuration)}.
*
* @param configChanges The mask of changes configurations as returned by
* {@link #updateFrom(Configuration)}.
* @param interestingChanges The configuration changes that the resource
* can handled, as given in {@link android.util.TypedValue#changingConfigurations}.
*
* @return Return true if the resource needs to be loaded, else false.
*/
public static boolean needNewResources(int configChanges, int interestingChanges) {
return (configChanges & (interestingChanges|ActivityInfo.CONFIG_FONT_SCALE)) != 0;
}
/**
* @hide Return true if the sequence of 'other' is better than this. Assumes
* that 'this' is your current sequence and 'other' is a new one you have
* received some how and want to compare with what you have.
*/
public boolean isOtherSeqNewer(Configuration other) {
if (other == null) {
// Sanity check.
return false;
}
if (other.seq == 0) {
// If the other sequence is not specified, then we must assume
// it is newer since we don't know any better.
return true;
}
if (seq == 0) {
// If this sequence is not specified, then we also consider the
// other is better. Yes we have a preference for other. Sue us.
return true;
}
int diff = other.seq - seq;
if (diff > 0x10000) {
// If there has been a sufficiently large jump, assume the
// sequence has wrapped around.
return false;
}
return diff > 0;
}
/**
* Parcelable methods
*/
public int describeContents() {
return 0;
}
public void writeToParcel(Parcel dest, int flags) {
dest.writeFloat(fontScale);
dest.writeInt(mcc);
dest.writeInt(mnc);
if (locale == null) {
dest.writeInt(0);
} else {
dest.writeInt(1);
dest.writeString(locale.getLanguage());
dest.writeString(locale.getCountry());
dest.writeString(locale.getVariant());
}
if(userSetLocale) {
dest.writeInt(1);
} else {
dest.writeInt(0);
}
dest.writeInt(touchscreen);
dest.writeInt(keyboard);
dest.writeInt(keyboardHidden);
dest.writeInt(hardKeyboardHidden);
dest.writeInt(navigation);
dest.writeInt(navigationHidden);
dest.writeInt(orientation);
dest.writeInt(screenLayout);
dest.writeInt(uiMode);
dest.writeInt(screenWidthDp);
dest.writeInt(screenHeightDp);
dest.writeInt(smallestScreenWidthDp);
dest.writeInt(densityDpi);
dest.writeInt(compatScreenWidthDp);
dest.writeInt(compatScreenHeightDp);
dest.writeInt(compatSmallestScreenWidthDp);
dest.writeInt(seq);
}
public void readFromParcel(Parcel source) {
fontScale = source.readFloat();
mcc = source.readInt();
mnc = source.readInt();
if (source.readInt() != 0) {
locale = new Locale(source.readString(), source.readString(),
source.readString());
}
userSetLocale = (source.readInt()==1);
touchscreen = source.readInt();
keyboard = source.readInt();
keyboardHidden = source.readInt();
hardKeyboardHidden = source.readInt();
navigation = source.readInt();
navigationHidden = source.readInt();
orientation = source.readInt();
screenLayout = source.readInt();
uiMode = source.readInt();
screenWidthDp = source.readInt();
screenHeightDp = source.readInt();
smallestScreenWidthDp = source.readInt();
densityDpi = source.readInt();
compatScreenWidthDp = source.readInt();
compatScreenHeightDp = source.readInt();
compatSmallestScreenWidthDp = source.readInt();
seq = source.readInt();
}
public static final Parcelable.Creator