Android–CircleView内的Google地图

概述我想在圆形视图中显示地图,其中圆形的外部区域充满了颜色.我提到了一个Drawtransparentcirclefilledoutside的帖子.但现在问题是触摸事件.可以通过外部圆形视图触摸地图,而我需要在圆形视图(地图可见的地方)内仅触摸(缩放或移动)地图.我试过的,>setEnabled=false>clicka

我想在圆形视图中显示地图,其中圆形的外部区域充满了颜色.我提到了一个Draw transparent circle filled outside的帖子.但现在问题是触摸事件.可以通过外部圆形视图触摸地图,而我需要在圆形视图(地图可见的地方)内仅触摸(缩放或移动)地图.

我试过的,

> setEnabled = false
> clickable = false

但仍然从外圆视图触摸地图.

是否可以实现从圆形视图内部触摸该地图.

public class RadiusOverlayVIEw extends linearLayout {    private Bitmap windowFrame;    public RadiusOverlayVIEw(Context context) {        super(context);    }    public RadiusOverlayVIEw(Context context, AttributeSet attrs) {        super(context, attrs);    }    public RadiusOverlayVIEw(Context context, AttributeSet attrs, int defStyleAttr) {        super(context, attrs, defStyleAttr);    }    @TargetAPI(Build.VERSION_CODES.LolliPOP)    public RadiusOverlayVIEw(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {        super(context, attrs, defStyleAttr, defStyleRes);    }    @OverrIDe    protected voID dispatchDraw(Canvas canvas) {        super.dispatchDraw(canvas);        if (windowFrame == null) {            createWindowFrame(); // Lazy creation of the window frame, this is needed as we don't kNow the wIDth & height of the screen until draw time        }        canvas.drawBitmap(windowFrame, 0, 0, null);    }    @OverrIDe    public boolean isEnabled() {        return false;    }    @OverrIDe    public boolean isClickable() {        return false;    }    protected voID createWindowFrame() {        windowFrame = Bitmap.createBitmap(getWIDth(), getHeight(), Bitmap.Config.ARGB_8888); // Create a new image we will draw over the map        Canvas osCanvas = new Canvas(windowFrame); // Create a   canvas to draw onto the new image        RectF outerRectangle = new RectF(0, 0, getWIDth(), getHeight());        Paint paint = new Paint(Paint.ANTI_AliAS_FLAG); // Anti alias allows for smooth corners        paint.setcolor(color.CYAN); // This is the color of your activity background        osCanvas.drawRect(outerRectangle, paint);        //paint.setcolor(color.transparent); // An obvIoUs color to help deBUGging        paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_OUT)); // A out B http://en.wikipedia.org/wiki/file:Alpha_compositing.svg        float centerX = getWIDth() / 2;        float centerY = getHeight() / 2;        float radius = Math.min(getWIDth(), getHeight()) / 2 - 50;        osCanvas.drawCircle(centerX, centerY, radius, paint);    }    @OverrIDe    public boolean isInEditMode() {        return true;    }    @OverrIDe    protected voID onLayout(boolean changed, int l, int t, int r, int b) {        super.onLayout(changed, l, t, r, b);        windowFrame = null; // If the layout changes null our frame so it can be recreated with the new wIDth and height    }}

XML布局

<relativeLayout xmlns:androID="http://schemas.androID.com/apk/res/androID"                androID:layout_wIDth="match_parent"                androID:layout_height="match_parent"                androID:orIEntation="vertical">    <!--loading map in container-->    <FrameLayout        androID:ID="@+ID/container"        androID:layout_wIDth="match_parent"        androID:layout_height="match_parent"/>    <mypackage.RadiusOverlayVIEw        androID:layout_wIDth="match_parent"        androID:layout_height="match_parent"        androID:layout_centerInParent="true"        /></relativeLayout>

结果：

任何帮助将不胜感激.

解决方法:

您可以将VIEw.OntouchListener设置为RadiusOverlayVIEw并计算RadiusOverlayVIEw是否需要管理触摸事件.
在这个例子中,我通过测试RadiusOverlayVIEw颜色是否被触摸来计算这个！= 0(也许你想改进这个)：

final RadiusOverlayVIEw radiusOverlayVIEw = (RadiusOverlayVIEw) findVIEwByID(R.ID.radiusVIEw);radiusOverlayVIEw.setontouchListener(new VIEw.OntouchListener() {    @OverrIDe    public boolean ontouch(final VIEw vIEw, final MotionEvent motionEvent) {        vIEw.setDrawingCacheEnabled(true);        Bitmap bmp = Bitmap.createBitmap(vIEw.getDrawingCache());        vIEw.setDrawingCacheEnabled(false);        return bmp.getPixel((int) motionEvent.getX(), (int) motionEvent.getY()) != 0;    }});

总结

以上是内存溢出为你收集整理的Android – CircleView内的Google地图全部内容，希望文章能够帮你解决Android – CircleView内的Google地图所遇到的程序开发问题。

如果觉得内存溢出网站内容还不错，欢迎将内存溢出网站推荐给程序员好友。