package xiaosi.grivaty;import android.content.Context;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.graphics.Canvas;import android.graphics.Rect;import android.view.MotionEvent;import android.view.View;public class Rects extends View{ private Bitmap bitmap = null; private float x,y; public Rects(Context context) { super(context); } @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.v); canvas.drawBitmap(bitmap, 0, 0, null); //创建和位图一样位置的Rect Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight()); if(rect.contains((int)x, (int)y)){ System.out.println("范围之内"); } else{ System.out.println("范围之外"); } System.out.println("图片宽度:" + bitmap.getWidth() + "图像高度:" + bitmap.getHeight()); System.out.println("点击X:" + x + "点击Y:" + y); } @Override public boolean onTouchEvent(MotionEvent event) { if (event.getAction() == MotionEvent.ACTION_DOWN) { x = event.getX(); y = event.getY(); // 重绘 invalidate(); } return true; } }
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