Wm指令源码

来源：互联网发布：rar怎么解压到mac 编辑：程序博客网时间：2024/04/24 03:16
public class Wm extends BaseCommand {    private IWindowManager mWm;    /**     * Command-line entry point.     *     * @param args The command-line arguments     */    public static void main(String[] args) {        (new Wm()).run(args);    }    @Override    public void onShowUsage(PrintStream out) {        out.println(                "usage: wm [subcommand] [options]\n" +                "       wm size [reset|WxH|WdpxHdp]\n" +                "       wm density [reset|DENSITY]\n" +                "       wm overscan [reset|LEFT,TOP,RIGHT,BOTTOM]\n" +                "       wm scaling [off|auto]\n" +                "       wm screen-capture [userId] [true|false]\n" +                "\n" +                "wm size: return or override display size.\n" +                "         width and height in pixels unless suffixed with 'dp'.\n" +                "\n" +                "wm density: override display density.\n" +                "\n" +                "wm overscan: set overscan area for display.\n" +                "\n" +                "wm scaling: set display scaling mode.\n" +                "\n" +                "wm screen-capture: enable/disable screen capture.\n" +                "\n" +                "wm dismiss-keyguard: dismiss the keyguard, prompting the user for auth if " +                "necessary.\n"                );    }    @Override    public void onRun() throws Exception {        mWm = IWindowManager.Stub.asInterface(ServiceManager.checkService(                        Context.WINDOW_SERVICE));        if (mWm == null) {            System.err.println(NO_SYSTEM_ERROR_CODE);            throw new AndroidException("Can't connect to window manager; is the system running?");        }        String op = nextArgRequired();        if (op.equals("size")) {            runDisplaySize();        } else if (op.equals("density")) {            runDisplayDensity();        } else if (op.equals("overscan")) {            runDisplayOverscan();        } else if (op.equals("scaling")) {            runDisplayScaling();        } else if (op.equals("screen-capture")) {            runSetScreenCapture();        } else if (op.equals("dismiss-keyguard")) {            runDismissKeyguard();        } else {            showError("Error: unknown command '" + op + "'");            return;        }    }    private void runSetScreenCapture() throws Exception {        String userIdStr = nextArg();        String enableStr = nextArg();        int userId;        boolean disable;        try {            userId = Integer.parseInt(userIdStr);        } catch (NumberFormatException e) {            System.err.println("Error: bad number " + e);            return;        }        disable = !Boolean.parseBoolean(enableStr);        try {            mWm.setScreenCaptureDisabled(userId, disable);        } catch (RemoteException e) {            System.err.println("Error: Can't set screen capture " + e);        }    }    private void runDisplaySize() throws Exception {        String size = nextArg();        int w, h;        if (size == null) {            Point initialSize = new Point();            Point baseSize = new Point();            try {                mWm.getInitialDisplaySize(Display.DEFAULT_DISPLAY, initialSize);                mWm.getBaseDisplaySize(Display.DEFAULT_DISPLAY, baseSize);                System.out.println("Physical size: " + initialSize.x + "x" + initialSize.y);                if (!initialSize.equals(baseSize)) {                    System.out.println("Override size: " + baseSize.x + "x" + baseSize.y);                }            } catch (RemoteException e) {            }            return;        } else if ("reset".equals(size)) {            w = h = -1;        } else {            int div = size.indexOf('x');            if (div <= 0 || div >= (size.length()-1)) {                System.err.println("Error: bad size " + size);                return;            }            String wstr = size.substring(0, div);            String hstr = size.substring(div+1);            try {                w = parseDimension(wstr);                h = parseDimension(hstr);            } catch (NumberFormatException e) {                System.err.println("Error: bad number " + e);                return;            }        }        try {            if (w >= 0 && h >= 0) {                // TODO(multidisplay): For now Configuration only applies to main screen.                mWm.setForcedDisplaySize(Display.DEFAULT_DISPLAY, w, h);            } else {                mWm.clearForcedDisplaySize(Display.DEFAULT_DISPLAY);            }        } catch (RemoteException e) {        }    }    private void runDisplayDensity() throws Exception {        String densityStr = nextArg();        int density;        if (densityStr == null) {            try {                int initialDensity = mWm.getInitialDisplayDensity(Display.DEFAULT_DISPLAY);                int baseDensity = mWm.getBaseDisplayDensity(Display.DEFAULT_DISPLAY);                System.out.println("Physical density: " + initialDensity);                if (initialDensity != baseDensity) {                    System.out.println("Override density: " + baseDensity);                }            } catch (RemoteException e) {            }            return;        } else if ("reset".equals(densityStr)) {            density = -1;        } else {            try {                density = Integer.parseInt(densityStr);            } catch (NumberFormatException e) {                System.err.println("Error: bad number " + e);                return;            }            if (density < 72) {                System.err.println("Error: density must be >= 72");                return;            }        }        try {            if (density > 0) {                // TODO(multidisplay): For now Configuration only applies to main screen.                mWm.setForcedDisplayDensity(Display.DEFAULT_DISPLAY, density);            } else {                mWm.clearForcedDisplayDensity(Display.DEFAULT_DISPLAY);            }        } catch (RemoteException e) {        }    }    private void runDisplayOverscan() throws Exception {        String overscanStr = nextArgRequired();        Rect rect = new Rect();        if ("reset".equals(overscanStr)) {            rect.set(0, 0, 0, 0);        } else {            final Pattern FLATTENED_PATTERN = Pattern.compile(                    "(-?\\d+),(-?\\d+),(-?\\d+),(-?\\d+)");            Matcher matcher = FLATTENED_PATTERN.matcher(overscanStr);            if (!matcher.matches()) {                System.err.println("Error: bad rectangle arg: " + overscanStr);                return;            }            rect.left = Integer.parseInt(matcher.group(1));            rect.top = Integer.parseInt(matcher.group(2));            rect.right = Integer.parseInt(matcher.group(3));            rect.bottom = Integer.parseInt(matcher.group(4));        }        try {            mWm.setOverscan(Display.DEFAULT_DISPLAY, rect.left, rect.top, rect.right, rect.bottom);        } catch (RemoteException e) {        }    }    private void runDisplayScaling() throws Exception {        String scalingStr = nextArgRequired();        if ("auto".equals(scalingStr)) {            mWm.setForcedDisplayScalingMode(Display.DEFAULT_DISPLAY, 0);        } else if ("off".equals(scalingStr)) {            mWm.setForcedDisplayScalingMode(Display.DEFAULT_DISPLAY, 1);        } else {            System.err.println("Error: scaling must be 'auto' or 'off'");        }    }    private void runDismissKeyguard() throws Exception {        mWm.dismissKeyguard();    }    private int parseDimension(String s) throws NumberFormatException {        if (s.endsWith("px")) {            return Integer.parseInt(s.substring(0, s.length() - 2));        }        if (s.endsWith("dp")) {            int density;            try {                density = mWm.getBaseDisplayDensity(Display.DEFAULT_DISPLAY);            } catch (RemoteException e) {                density = DisplayMetrics.DENSITY_DEFAULT;            }            return Integer.parseInt(s.substring(0, s.length() - 2)) * density /                    DisplayMetrics.DENSITY_DEFAULT;        }        return Integer.parseInt(s);    }}
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