问题描述
我想获得 ImageView 的坐标，不考虑设备大小。
I want to get the co-ordinates of the ImageView, Irrespective of device size.
任何可能的方式!!
我试图创建 ImageView 的特定大小，
I have tried to create specific size for the ImageView,Even specific size for the Parent View also ,but its not working.
我尝试了以下可能的方法。
I have tried the following possible ways.
int[] posXY = new int[2];
imageview.getLocationOnScreen(posXY);
int MoveX = posXY[0];
int MoveY = posXY[1];
我已经尝试过Matrix了，但不工作。
I have tried with Matrix too ,But not working.
Matrix m = imageview.getImageMatrix();
尝试下面的代码，但它也不工作。
Tried the below code, but it is also not working.!!
我需要为同一点（位置）的所有设备获得相同的{x，y}坐标。
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;
}
这里是draw方法：
如果我在绘制中设置位图图像，它不适合每个设备的屏幕。如果我设置图像显示宽度和高度，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);
}
任何想法或帮助都会有帮助。
Any Idea or help would be really helpful.
推荐答案
最后找到一些相对的解决方案，所有设备的相同坐标。使用Activity，没有自定义ImageView。
Finally found some relative solution,Same Co-ordinates for all devices.Using Activity,no Custom ImageView.
On ImageView 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;
}
使用画布绘制
Resources res = getResources();
Drawable drawable = res.getDrawable(R.drawable.image);
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);
这篇关于在自定义ImageView中绘制位图，并获取ImageView的坐标，而不考虑设备的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！