在视图中添加布局

Question

我有这个代码，所以我可以用手指在特定图像上绘图。现在我想在这个布局中添加一个布局和一些 Imageviews。我怎么能做到这一点？ 因为我想在布局中添加一些 onTouch 和 onClick 监听器来移动 ImageViews。 另外，我可以添加现有的 xml 布局还是只动态创建新的布局？

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    MyView view1 =new MyView(this);

    mPaint = new Paint();
    mPaint.setAntiAlias(true);
    mPaint.setDither(true);
    mPaint.setColor(Color.BLACK);
    mPaint.setStyle(Paint.Style.STROKE);
    mPaint.setStrokeJoin(Paint.Join.ROUND);
    mPaint.setStrokeCap(Paint.Cap.ROUND);
    mPaint.setStrokeWidth(3);

    setContentView(view1);
}

public class MyView extends View {

    private static final float MINP = 0.25f;
    private static final float MAXP = 0.75f;

    private Bitmap  mBitmap;
    private Canvas  mCanvas;
    private Path    mPath;
    private Paint   mBitmapPaint;

    public MyView(Context c) {
        super(c);
        setBackgroundResource(R.drawable.half_court);
      //  this.inflate(c, R.drawable.playera1, null);
        mPath = new Path();
        mBitmapPaint = new Paint(Paint.DITHER_FLAG);

    }

    @Override
   protected 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.drawLine(mX, mY, Mx1, My1, mPaint);
       // canvas.drawLine(mX, mY, x, y, mPaint);
        canvas.drawBitmap(mBitmap, 0, 0, mBitmapPaint);
        canvas.drawPath(mPath, mPaint);


    }

    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);
        // commit the path to our offscreen
        mCanvas.drawPath(mPath, mPaint);
        // kill this so we don't double draw
        mPath.reset();
    }

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

        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();
           //   Mx1=(int) event.getX();
             //  My1= (int) event.getY();
               invalidate();
                break;
        }
        return true;
    }
}

（编辑）当我尝试 Gunaseelan 的解决方案时，我会出现以下错误：

04-09 13:05:08.842: D/dalvikvm(852): GC_FOR_ALLOC 释放 50K，释放 4% 9056K/9347K，暂停 89ms 04-09 13:05:08.892: I/dalvikvm-heap(852): 将堆（碎片情况）增加到 11.503MB 以分配 2716016 字节 04-09 13:05:09.033: D/dalvikvm(852): GC_CONCURRENT 释放

Answer 1

试试这个方法

LinearLayout layout = new LinearLayout(this);
ImageView iv = new ImageView(this);
iv.setImageResource(R.drawable.your_image);
layout.addView(iv);
layout.addView(view1);
setContentView(layout);

那么你的onCreate()应该是

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    MyView view1 =new MyView(this);

    LinearLayout layout =  new LinearLayout(this);
    ImageView iv = new ImageView(this);
    iv.setImageResource(R.drawable.your_image);
    layout.addView(iv);
    layout.addView(view1);

    mPaint = new Paint();
    mPaint.setAntiAlias(true);
    mPaint.setDither(true);
    mPaint.setColor(Color.BLACK);
    mPaint.setStyle(Paint.Style.STROKE);
    mPaint.setStrokeJoin(Paint.Join.ROUND);
    mPaint.setStrokeCap(Paint.Cap.ROUND);
    mPaint.setStrokeWidth(3);

    setContentView(layout);
}

我希望这会奏效。