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我试图做一些事情来比较手指画应用程序中的 2 个位图。我首先将第一个位图加载到二维数组中，然后我想将另一个输出位图从手指画加载到另一个数组中并比较两个位图。我的代码不起作用，我不知道应该在哪里编辑。比较功能在用户按下选项菜单中的“比较”选项后立即启动。请帮我。

public class MainActivity extends GraphicsActivity
    {

boolean check = false;  


@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(new MyView(this));

    mPaint = new Paint();                                                                       
    mPaint.setAntiAlias(true);                                          
    mPaint.setDither(true);                                             
    mPaint.setColor(Color.RED);                                         
    mPaint.setStyle(Paint.Style.STROKE);                                
    mPaint.setStrokeJoin(Paint.Join.ROUND);                             
    mPaint.setStrokeCap(Paint.Cap.ROUND);                               
    mPaint.setStrokeWidth(20);
}

private Paint   mPaint;

public class MyView extends View {
    Bitmap mBitmap;
    Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.c_1);
    Bitmap bitmap2;
    private Canvas  mCanvas;
    private Path    mPath;
    private Paint   mBitmapPaint;

    int w1 = bitmap.getWidth();
    int h1 = bitmap.getHeight();

    int [][] array = new int [w1][h1];
    int b=0;
    int c=0;
    int k=0;
    int i, j;
    int l=0;
    View content = this;


    {
        for(int j = 0;j< w1; j++){
            for(int i = 0;i< h1; i++,k++){
                array[j][i]= bitmap.getPixel(j, i);
                if(bitmap.getPixel(j, i)== 100);
                {
                    b++;
                }

            }
        }
        System.out.println("numbers of gray:" + b);       

    }


    public MyView(Context c) {                                              
        super(c);

        mPath = new Path();
        mBitmapPaint = new Paint(Paint.DITHER_FLAG);
        content.setDrawingCacheEnabled(true);
        content.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_HIGH);

}

    @Override
    public void onSizeChanged(int w, int h, int oldw, int oldh){
        super.onSizeChanged(w, h, oldw, oldh);
        mBitmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
        mCanvas = new Canvas(mBitmap);
    }


    @Override
    protected void onDraw(Canvas canvas) {

        canvas.drawColor(Color.WHITE);

        canvas.drawBitmap(bitmap, 0, 0, null);

        canvas.drawBitmap(mBitmap, 0, 0, mBitmapPaint);

        canvas.drawPath(mPath, mPaint);

        bitmap2 = content.getDrawingCache();
    }




    private float mX, mY;
    private static final float TOUCH_TOLERANCE = 4;

    private void touch_start(float x, float y) {
            mPath.reset();
            mPath.moveTo(x, y);
            mX = x;
            mY = y;

        }
    private void touch_move(float x, float y) {
        float dx = Math.abs(x - mX);
        float dy = Math.abs(y - mY);
        if (dx >= TOUCH_TOLERANCE || dy >= TOUCH_TOLERANCE) {
            mPath.quadTo(mX, mY, (x + mX)/2, (y + mY)/2);
            mX = x;
            mY = y;
            }
    }
    private void touch_up() {
        mPath.lineTo(mX, mY);
        mCanvas.drawPath(mPath, mPaint);
        mPath.reset();
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        float x = event.getX();
        float y = event.getY();         

        System.out.println("Coordinates:" + x + "," + y);

    switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN:
                touch_start(x, y);
                invalidate();
                break;
            case MotionEvent.ACTION_MOVE:
                touch_move(x, y);
                invalidate();
                break;
            case MotionEvent.ACTION_UP:
                touch_up();
                invalidate();
                break;
    }                               

    return true;    

    }  

    private void compare(Boolean check){
    if(check == true)
        {

            int w2 = bitmap2.getWidth();
            int h2 = bitmap2.getHeight();
            System.out.println("Width and Height of the product:" + w2 + "," + h2); 

            int [][] array1 = new int [w2][h2];             
            {               
                for(int j1 = 0;j1< w2; j1++){
                    for(int i1 = 0;i1< h2; i1++,l++){
                        array1[j1][i1]= bitmap2.getPixel(j1, i1);
                        if(array[j1][i1]== 100 && array1[j1][i1] == Color.RED);
                        {
                            c++;
                        }

                    }
                }
                System.out.println("numbers pixels touched:" + c);       
            }
            int d=(b-c)/b*100;

            Toast t = Toast.makeText(getBaseContext(), "Completion :" + d + "%", Toast.LENGTH_SHORT);
            t.show();

        }
    }
}

private static final int CLEAR_MENU_ID = Menu.FIRST;
private static final int COMPARE_ID = Menu.FIRST + 1;

public boolean onCreateOptionsMenu(Menu menu)  {
    super.onCreateOptionsMenu(menu);

    menu.add(0, CLEAR_MENU_ID, 0, "Clear ALL");
    menu.add(0, COMPARE_ID, 0, "Compare");

 return true;
   }

 @Override
 public boolean onOptionsItemSelected(MenuItem item) {

    switch (item.getItemId()) {
        case CLEAR_MENU_ID:
            setContentView(new MyView(this));
            check = false;
            return true;
        case COMPARE_ID:
            check = true;
            return true;
    }
            return super.onOptionsItemSelected(item);   
    }
}
4

1 回答 1

0

您没有在任何地方调用 compare() 。

@Override
public boolean onOptionsItemSelected(MenuItem item) {

    switch (item.getItemId()) {
        case CLEAR_MENU_ID:
            setContentView(new MyView(this));
            check = false;
            return true;
        case COMPARE_ID:
            check = true;
            compare(check);
            return true;
        default:
            break;
    }

    return super.onOptionsItemSelected(item);   

}

我看不到“检查”变量的用途，但我假设您在其他地方使用它。

于 2012-04-23T15:56:41.400 回答