Android 获取View高度宽度
16lz
2021-01-23
Android 获取View高度宽度
等待View加载完成
final ImageView iv = (ImageView) findViewById(R.id.iv_test);iv.setImageResource(R.drawable.abc);//等待ImageVivew加载完成iv.post(new Runnable(){@Overridepublic void run() {// TODO Auto-generated method stub//ImageView的宽和高Log.d("lxy", "iv_W = " + iv.getWidth() + ", iv_H = " + iv.getHeight());//获得ImageView中Image的真实宽高，int dw = iv.getDrawable().getBounds().width();int dh = iv.getDrawable().getBounds().height();Log.d("lxy", "drawable_X = " + dw + ", drawable_Y = " + dh);//获得ImageView中Image的变换矩阵Matrix m = iv.getImageMatrix();float[] values = new float[10];m.getValues(values);//Image在绘制过程中的变换矩阵，从中获得x和y方向的缩放系数float sx = values[0];float sy = values[4];Log.d("lxy", "scale_X = " + sx + ", scale_Y = " + sy);//计算Image在屏幕上实际绘制的宽高int cw = (int)(dw * sx);int ch = (int)(dh * sy);Log.d("lxy", "caculate_W = " + cw + ", caculate_H = " + ch);}});