Android 获取View高度宽度

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(){	

			@Override
			public 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);
			}});