android.app.UiAutomation#ROTATION_FREEZE_180 ( )源码实例Demo

/**
 * Check if the device is in its natural orientation. This is determined by checking if the
 * orientation is at 0 or 180 degrees.
 * @return true if it is in natural orientation
 * @since API Level 17
 */
public boolean isNaturalOrientation() {
    Tracer.trace();
    waitForIdle();
    int ret = getAutomatorBridge().getRotation();
    return ret == UiAutomation.ROTATION_FREEZE_0 ||
            ret == UiAutomation.ROTATION_FREEZE_180;
}
 

public int getDisplayUnRotationWidth() {
	int rotation = getDisplayRotation();
	if (rotation == UiAutomation.ROTATION_FREEZE_0
			|| rotation == UiAutomation.ROTATION_FREEZE_180) {
		return getDisplayWidth();
	} else {
		return getDisplayHeight();
	}
}
 

public int getDisplayUnRotationHeight() {
	int rotation = getDisplayRotation();
	if (rotation == UiAutomation.ROTATION_FREEZE_0
			|| rotation == UiAutomation.ROTATION_FREEZE_180) {
		return getDisplayHeight();
	} else {
		return getDisplayWidth();
	}
}
 

/**
 * Check if the device is in its natural orientation. This is determined by
 * checking if the orientation is at 0 or 180 degrees.
 * 
 * @return true if it is in natural orientation
 * @since API Level 17
 */
public boolean isNaturalOrientation() {
	Tracer.trace();
	waitForIdle();
	int ret = getAutomatorBridge().getRotation();
	return ret == UiAutomation.ROTATION_FREEZE_0
			|| ret == UiAutomation.ROTATION_FREEZE_180;
}
 

public static Point toOriginPoint(int x, int y) {
	int rotation = UiDevice.getInstance().getRotation();
	int width = UiDevice.getInstance().getDisplayWidth();
	int height = UiDevice.getInstance().getDisplayHeight();
	int rWidth = xmax() - xmin();
	int rHeight = ymax() - ymin();
	int tempx = 0;
	int tempy = 0;
	int tempWidth = 0;
	int tempHeight = 0;
	// 将xy旋转回来
	switch (rotation) {
	case UiAutomation.ROTATION_FREEZE_0:

		break;
	case UiAutomation.ROTATION_FREEZE_90:
		// 原来的x = 现在的y，原来的y = 现在的宽度-现在的x
		tempx = y;
		tempy = width - x;
		x = tempx;
		y = tempy;
		tempWidth = height;
		tempHeight = width;
		break;
	case UiAutomation.ROTATION_FREEZE_180:
		// 原来的x = 现在的宽度-现在的x，原来的y=现在的高度-现在的y
		tempx = width - x;
		tempy = height - y;
		x = tempx;
		y = tempy;
		break;
	case UiAutomation.ROTATION_FREEZE_270:
		// 原来的x = 现在的高度-现在的y，原来的y=现在的x
		tempx = height - y;
		tempy = x;
		x = tempx;
		y = tempy;
		tempWidth = height;
		tempHeight = width;
		width = tempWidth;
		height = tempHeight;
		break;
	}
	// 缩放到驱动坐标
	x = (x * rWidth / width);
	y = (y * rHeight / height);
	return new Point(x, y);
}
 

public static Bitmap takeScreenshot(int rotation, int screenWidth,
		int screenHeight) {
	Display display = DisplayManagerGlobal.getInstance().getRealDisplay(
			Display.DEFAULT_DISPLAY);
	Point displaySize = new Point();
	display.getRealSize(displaySize);
	final int displayWidth = screenWidth;
	final int displayHeight = screenHeight;
	final float screenshotWidth;
	final float screenshotHeight;
	switch (rotation) {
	case UiAutomation.ROTATION_FREEZE_0: {
		screenshotWidth = displayWidth;
		screenshotHeight = displayHeight;
	}
		break;
	case UiAutomation.ROTATION_FREEZE_90: {
		screenshotWidth = displayHeight;
		screenshotHeight = displayWidth;
	}
		break;
	case UiAutomation.ROTATION_FREEZE_180: {
		screenshotWidth = displayWidth;
		screenshotHeight = displayHeight;
	}
		break;
	case UiAutomation.ROTATION_FREEZE_270: {
		screenshotWidth = displayHeight;
		screenshotHeight = displayWidth;
	}
		break;
	default: {
		return null;
	}
	}

	Bitmap screenShot = null;
	try {
		screenShot = SurfaceControl.screenshot((int) screenshotWidth,
				(int) screenshotHeight);
		if (screenShot == null) {
			return null;
		}
	} catch (Exception re) {
		return null;
	}
	if (rotation != UiAutomation.ROTATION_FREEZE_0) {
		Bitmap unrotatedScreenShot = Bitmap.createBitmap(displayWidth,
				displayHeight, Bitmap.Config.ARGB_8888);
		Canvas canvas = new Canvas(unrotatedScreenShot);
		canvas.translate(unrotatedScreenShot.getWidth() / 2,
				unrotatedScreenShot.getHeight() / 2);
		canvas.rotate(getDegreesForRotation(rotation));
		canvas.translate(-screenshotWidth / 2, -screenshotHeight / 2);
		canvas.drawBitmap(screenShot, 0, 0, null);
		canvas.setBitmap(null);
		screenShot.recycle();
		screenShot = unrotatedScreenShot;
	}
	// Optimization
	screenShot.setHasAlpha(false);
	return screenShot;
}