绘制位图在自定义的ImageView并获得坐标ImageView的不考虑设备 [英] Draw Bitmap in Custom ImageView and get the Co-ordinates of the ImageView irrespective of the device

问题描述

我想要得到的坐标的的ImageView ，无论设备的大小。

I want to get the co-ordinates of the ImageView, Irrespective of device size.

有任何可能的方式！

我试图创建一个特定大小的ImageView ，即使对于父具体尺寸显示也不过它不工作。

I have tried to create specific size for the ImageView,Even specific size for the Parent View also ,but its not working.

我曾尝试以下几种可能的方式。

I have tried the following possible ways.

int[] posXY = new int[2];
imageview.getLocationOnScreen(posXY);
int MoveX = posXY[0];
int MoveY = posXY[1];

我曾尝试与矩阵过，但没有工作。

I have tried with Matrix too ,But not working.

Matrix m = imageview.getImageMatrix();

试过低于code，但也不能正常工作。!!

Tried the below code, but it is also not working.!!

我需要得到同样的{X，Y}坐标为同一点（区域）的所有设备。

I need to get the same {x,y} Co-ordinates for all devices for the same point (Location).

final float[] getPointerCoords(ImageView view, MotionEvent e)
    {
        final int index = e.getActionIndex();
        final float[] coords = new float[] { 
                e.getX(index), e.getY(index) 
                };
        Matrix matrix = new Matrix();
        view.getImageMatrix().invert(matrix);

        matrix.mapPoints(coords);

        return coords;
    }

下面是绘制方法：

如果我设置的抽奖位图图像，它不适合屏幕的每一个设备。如果我设置图像显示的宽度和高度，我得到不同的坐标。

if i set bitmap image in draw, it does not fit the screen for every devices. If i set image with Display width and height, i am getting different co-ordinates.

 @Override
    public void draw(Canvas canvas) {
        // TODO Auto-generated method stub
        super.draw(canvas);

        Resources res = getResources();
        Drawable drawable = res.getDrawable(R.drawable.subimage);
        mBitmap = ((BitmapDrawable) drawable).getBitmap();     
        canvas.drawBitmap(mBitmap, 0, 0, null);

    }

任何想法或帮助将是非常有益的。

Any Idea or help would be really helpful.

推荐答案

终于找到了一些相关的解决方案，同样的坐标为所有devices.Using活动，没有自定义ImageView的。

Finally found some relative solution,Same Co-ordinates for all devices.Using Activity,no Custom ImageView.

在ImageView的OnTouch ..

On ImageView OnTouch ..

 public boolean onTouch(View v, MotionEvent event) {
    int action = event.getAction();
      final int index = e.getActionIndex();
      final float[] coords = new float[] {
              e.getX(index), e.getY(index)
      };
      Matrix matrix = new Matrix();
      choosenImageView.getImageMatrix().invert(matrix);
      matrix.mapPoints(coords);
    return true;
  }

使用绘图画布

Draw Using Canvas

        Resources res = getResources();
        Drawable drawable = res.getDrawable(R.drawable.image);//drawable-nodpi
        Bitmap bmp= ((BitmapDrawable) drawable).getBitmap();

        alteredBitmap = Bitmap.createBitmap(bmp.getWidth(), bmp.getHeight(), bmp.getConfig());
        canvas = new Canvas(alteredBitmap);
        paint = new Paint();
        paint.setColor(Color.GREEN);
        paint.setStrokeWidth(5);
        matrix = new Matrix();
        canvas.drawBitmap(bmp, matrix, paint);

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