点击图片中不规则图形提示选中不同区域

来源：互联网发布：人工智能的原理及应用编辑：程序博客网时间：2024/06/11 17:13

如图所示，当点击不同区域做出不同提示
首先制作背景图，然后将不同区域的图片单独截取下来，截取的楼层图必须和背景相同大，保证当所有图片重叠是是一样完整的图片
背景图：

楼层图：

package com.bitcare.view;import android.content.Context;import android.graphics.Bitmap;import android.graphics.Canvas;import android.util.AttributeSet;import android.view.MotionEvent;import android.view.View;public class NavMapView extends View {private Bitmap[] mBitmaps;private OnClickBitmapListener clickBitmapListener;public NavMapView(Context context) {super(context);}public NavMapView(Context context, AttributeSet attrs) {super(context, attrs);}/** * 设置图片 * @author yubin * @date 2013-10-12 */public final void setBitmaps(Bitmap[] bitmap) {this.mBitmaps = bitmap;invalidate();}@Overrideprotected void onDraw(Canvas canvas) {super.onDraw(canvas);if (mBitmaps != null) {for (int i = 0; i < mBitmaps.length; i++) {canvas.drawBitmap(mBitmaps[i], 0, 0, null);}}}@Overridepublic boolean onTouchEvent(MotionEvent event) {if (event.getAction() == MotionEvent.ACTION_DOWN) {which(event.getX(), event.getY());}return true;}public void which(float x, float y) {if (mBitmaps != null) {for (int i = 0; i < mBitmaps.length; i++) {// 判断坐标点不超过图片得宽高if ((int) x > mBitmaps[0].getWidth() || (int) y > mBitmaps[0].getHeight()) {clickBitmapListener.ClickBitmap(-1);break;}Bitmap mBitmap = mBitmaps[i];// 判断坐标点是否是在图片得透明区域if (mBitmap.getPixel((int) x, (int) y) != 0) {clickBitmapListener.ClickBitmap(i);break;}}}}public final void setOnClickBitmapListener(OnClickBitmapListener listener) {this.clickBitmapListener = listener;};public static interface OnClickBitmapListener {/** * @param index -1表示超出范围 * @author yubin * @date 2013-10-12 */void ClickBitmap(int index);}}