java– 如何在android中的图像视图上添加引脚标记

概述我正在进行一个项目,我需要在图像视图上添加图钉,如下图所示.我们怎么能这样做我使用成功创建了可缩放的图像视图TouchImageview.javaclassTouchImageViewextendsImageView{Matrixmatrix=newMatrix();//Wecanbeinoneofthese3statesstaticfinalintNO

我正在进行一个项目,我需要在图像视图上添加图钉,如下图所示.
我们怎么能这样做

我使用成功创建了可缩放的图像视图

touchImagevIEw.java

 class touchImageVIEw extends ImageVIEw {Matrix matrix = new Matrix();// We can be in one of these 3 statesstatic final int NONE = 0;static final int DRAG = 1;static final int ZOOM = 2;int mode = NONE;// Remember some things for zoomingPointF last = new PointF();PointF start = new PointF();float minScale = 1f;float maxScale = 3f;float[] m;float redundantXSpace, redundantYSpace;float wIDth, height;static final int CliCK = 3;float saveScale = 1f;float right, bottom, origWIDth, origHeight, bmWIDth, bmHeight;ScaleGestureDetector mScaleDetector;Context context;@OverrIDeprotected voID onDraw(Canvas canvas) {    super.onDraw(canvas);       }public touchImageVIEw(Context context) {    super(context);    super.setClickable(true);    this.context = context;    mScaleDetector = new ScaleGestureDetector(context, new ScaleListener());    matrix.setTranslate(1f, 1f);    m = new float[9];    setimageMatrix(matrix);    setScaleType(ScaleType.MATRIX);    setontouchListener(new OntouchListener() {        @OverrIDe        public boolean ontouch(VIEw v, MotionEvent event) {            mScaleDetector.ontouchEvent(event);            Log.e("Deepak", "X" + event.getRawX());            Log.e("Deepak", "Y" + event.getRawY());            matrix.getValues(m);            float x = m[Matrix.MTRANS_X];            float y = m[Matrix.MTRANS_Y];            PointF curr = new PointF(event.getX(), event.getY());            switch (event.getAction()) {                case MotionEvent.ACTION_DOWN:                    last.set(event.getX(), event.getY());                    start.set(last);                    mode = DRAG;                    break;                case MotionEvent.ACTION_MOVE:                    if (mode == DRAG) {                        float deltaX = curr.x - last.x;                        float deltaY = curr.y - last.y;                        float scaleWIDth = Math.round(origWIDth * saveScale);                        float scaleHeight = Math.round(origHeight * saveScale);                        if (scaleWIDth < wIDth) {                            deltaX = 0;                            if (y + deltaY > 0)                                deltaY = -y;                            else if (y + deltaY < -bottom)                                deltaY = -(y + bottom);                         } else if (scaleHeight < height) {                            deltaY = 0;                            if (x + deltaX > 0)                                deltaX = -x;                            else if (x + deltaX < -right)                                deltaX = -(x + right);                        } else {                            if (x + deltaX > 0)                                deltaX = -x;                            else if (x + deltaX < -right)                                deltaX = -(x + right);                            if (y + deltaY > 0)                                deltaY = -y;                            else if (y + deltaY < -bottom)                                deltaY = -(y + bottom);                        }                        matrix.postTranslate(deltaX, deltaY);                        last.set(curr.x, curr.y);                    }                    break;                case MotionEvent.ACTION_UP:                    mode = NONE;                    int xDiff = (int) Math.abs(curr.x - start.x);                    int yDiff = (int) Math.abs(curr.y - start.y);                    if (xDiff < CliCK && yDiff < CliCK)                        performClick();                    break;                case MotionEvent.ACTION_POINTER_UP:                    mode = NONE;                    break;            }            setimageMatrix(matrix);            invalIDate();            return true; // indicate event was handled        }    });}@OverrIDepublic voID setimageBitmap(Bitmap bm) {     super.setimageBitmap(bm);    bmWIDth = bm.getWIDth();    bmHeight = bm.getHeight();}public voID setMaxZoom(float x){    maxScale = x;}private class ScaleListener extends ScaleGestureDetector.SimpleOnScaleGestureListener {    @OverrIDe    public boolean onScaleBegin(ScaleGestureDetector detector) {        mode = ZOOM;        return true;    }    @OverrIDe    public boolean onScale(ScaleGestureDetector detector) {        float mScaleFactor = (float)Math.min(Math.max(.95f, detector.getScaleFactor()), 1.05);        float origScale = saveScale;        saveScale *= mScaleFactor;        if (saveScale > maxScale) {            saveScale = maxScale;            mScaleFactor = maxScale / origScale;        } else if (saveScale < minScale) {            saveScale = minScale;            mScaleFactor = minScale / origScale;        }        right = wIDth * saveScale - wIDth - (2 * redundantXSpace * saveScale);        bottom = height * saveScale - height - (2 * redundantYSpace * saveScale);        if (origWIDth * saveScale <= wIDth || origHeight * saveScale <= height) {            matrix.postscale(mScaleFactor, mScaleFactor, wIDth / 2, height / 2);            if (mScaleFactor < 1) {                matrix.getValues(m);                float x = m[Matrix.MTRANS_X];                float y = m[Matrix.MTRANS_Y];                if (mScaleFactor < 1) {                    if (Math.round(origWIDth * saveScale) < wIDth) {                        if (y < -bottom)                            matrix.postTranslate(0, -(y + bottom));                        else if (y > 0)                            matrix.postTranslate(0, -y);                    } else {                        if (x < -right)                             matrix.postTranslate(-(x + right), 0);                        else if (x > 0)                             matrix.postTranslate(-x, 0);                    }                }            }        } else {            matrix.postscale(mScaleFactor, mScaleFactor, detector.getFocusX(), detector.getFocusY());            matrix.getValues(m);            float x = m[Matrix.MTRANS_X];            float y = m[Matrix.MTRANS_Y];            if (mScaleFactor < 1) {                if (x < -right)                     matrix.postTranslate(-(x + right), 0);                else if (x > 0)                     matrix.postTranslate(-x, 0);                if (y < -bottom)                    matrix.postTranslate(0, -(y + bottom));                else if (y > 0)                    matrix.postTranslate(0, -y);            }        }        return true;    }}@OverrIDeprotected voID onMeasure (int wIDthMeasureSpec, int heightmeasureSpec){    super.onMeasure(wIDthMeasureSpec, heightmeasureSpec);    wIDth = MeasureSpec.getSize(wIDthMeasureSpec);    height = MeasureSpec.getSize(heightmeasureSpec);    //Fit to screen.    float scale;    float scaleX =  (float)wIDth / (float)bmWIDth;    float scaleY = (float)height / (float)bmHeight;    scale = Math.min(scaleX, scaleY);    matrix.setScale(scale, scale);    setimageMatrix(matrix);    saveScale = 1f;    // Center the image    redundantYSpace = (float)height - (scale * (float)bmHeight) ;    redundantXSpace = (float)wIDth - (scale * (float)bmWIDth);    redundantYSpace /= (float)2;    redundantXSpace /= (float)2;    matrix.postTranslate(redundantXSpace, redundantYSpace);    origWIDth = wIDth - 2 * redundantXSpace;    origHeight = height - 2 * redundantYSpace;    right = wIDth * saveScale - wIDth - (2 * redundantXSpace * saveScale);    bottom = height * saveScale - height - (2 * redundantYSpace * saveScale);    setimageMatrix(matrix);}}

现在我需要在上面添加标记.
任何帮助.

解决方法:

我在这里找到了答案https://github.com/catchthecows/AndroidImageMap

在AndroID视图中实现HTML地图的元素：

>在布局中支持图像作为可绘制或位图
>允许xml中的区域标签列表
>允许使用剪切和粘贴HTML区域标签到资源xml(即,获取HTML地图的能力 – 和图像,并使用最少的编辑使用它)
>如果图像大于设备屏幕,则支持平移
>支持双指缩放
>在点击区域时支持回调.
>支持将注释显示为气泡文本,并在点击气泡时提供回调

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