Question

我决定在android中创建自己的Java的Robot类来进行屏幕捕获..我已经编写了我自己的机器人类的源代码，但问题在这里，代码中的以下行是抛出编译错误..saying“ ComponentFactory类型中的方法createRobot（Robot，GraphicsDevice）不适用于参数（Robot，GraphicsDevice）”

peer =（（ComponentFactory）toolkit）.createRobot（this，screen）;

任何人都可以建议我解决方案是什么......

感谢..

Answer 1

这是我的完整源代码

package com.example.awt;

import java.awt.AWTException; import java.awt.GraphicsDevice; import java.awt.GraphicsEnvironment; import java.awt.Rectangle; import java.awt.peer。; import java.awt.image。; import java.awt.event。*; import java.lang.reflect.InvocationTargetException;

// import com.sun.media.sound.Toolkit;

import sun.awt.ComponentFactory; // import sun.awt.SunToolkit; import sun.security.util.SecurityConstants; import java.awt.Toolkit;

公共类机器人{

 private static final int MAX_DELAY = 60000;
private RobotPeer peer;
  private boolean isAutoWaitForIdle = false;
  private int autoDelay = 0;
  private static final int LEGAL_BUTTON_MASK = 
                       InputEvent.BUTTON1_MASK|
                      InputEvent.BUTTON2_MASK|
                       InputEvent.BUTTON3_MASK;

  private DirectColorModel screenCapCM = null;

  public Robot() throws AWTException   {
          if (GraphicsEnvironment.isHeadless()) {
               throw new AWTException  ("headless environment");
        }
        init(GraphicsEnvironment.getLocalGraphicsEnvironment()
             .getDefaultScreenDevice());

      }
  private void init(GraphicsDevice   screen) throws AWTException   {
         checkRobotAllowed();
          Toolkit toolkit = Toolkit.getDefaultToolkit();
           if (toolkit instanceof ComponentFactory) {
               peer = ((ComponentFactory)toolkit).createRobot(this, screen);
            }
       }
  public Robot(GraphicsDevice   screen) throws AWTException   {
       checkIsScreenDevice(screen);
           init(screen);
   }

  private void checkRobotAllowed() {
     SecurityManager   security = System.getSecurityManager();
       if (security != null) {
           security.checkPermission(SecurityConstants.CREATE_ROBOT_PERMISSION);
        }
        }

  private void checkIsScreenDevice(GraphicsDevice   device) {
           if (device == null || device.getType() != GraphicsDevice.TYPE_RASTER_SCREEN) {
                throw new IllegalArgumentException  ("not a valid screen device");
          }

  }
  public synchronized BufferedImage createScreenCapture(Rectangle   screenRect) {
        checkScreenCaptureAllowed();
       checkValidRect(screenRect);

       BufferedImage image;
        DataBufferInt buffer;
        WritableRaster raster;

        if (screenCapCM == null) {
            /*
   284          * Fix for 4285201 
   285          * Create a DirectColorModel equivalent to the default RGB ColorModel,
   286          * except with no Alpha component.
            */

           screenCapCM = new DirectColorModel(24,
                            /* red mask */ 0x00FF0000,
                           /* green mask */ 0x0000FF00,
                           /* blue mask */ 0x000000FF);
        }

        int pixels[];
       int[] bandmasks = new int[3];

        pixels = peer.getRGBPixels(screenRect);
        buffer = new DataBufferInt(pixels, pixels.length);

        bandmasks[0] = screenCapCM.getRedMask();
       bandmasks[1] = screenCapCM.getGreenMask();
       bandmasks[2] = screenCapCM.getBlueMask();

       raster = Raster.createPackedRaster(buffer, screenRect.width, screenRect.height, screenRect.width, bandmasks, null);

       image = new BufferedImage(screenCapCM, raster, false, null);

       return image;
       }
  private static void checkValidRect(Rectangle   rect) {
        if (rect.width <= 0 || rect.height <= 0) {
            throw new IllegalArgumentException  ("Rectangle width and height must be > 0");
        }
        }
  private static void checkScreenCaptureAllowed() {
       SecurityManager   security = System.getSecurityManager();
       if (security != null) {
           security.checkPermission(
            SecurityConstants.READ_DISPLAY_PIXELS_PERMISSION);
        }
        }

}

在android中创建我自己的Robot类时出错

1 个答案: