Android Baidu map Add Marker by cropping a picture

Initialize Baidu Map:

1 Private void initviews () {24         mmapview = (Mapview) Findviewbyid (R.id.bmapview); 5         Mbaidumap = mmapview.getmap (); 6         // Initialize map extent levels 7         Mapstatusupdate MSU = Mapstatusupdatefactory.zoomto (14.0f); 8         Mbaidumap.setmapstatus (MSU); 9     }

--------------------Ornate Split Line-----------------------

// Initialize bitmap information, recycle in time when not in use Bitmapdescriptor friend_1;

Initialize the cropped picture (here for a circular image):

1 friend_1 = bitmapdescriptorfactory.frombitmap (2                     bmaputil.createcircleimage ( Bitmapfactory.decoderesource (Getresources (), r.drawable.friend_1), 90));

Circular image Generation Method:

1 /**2 * Draw Circular pictures based on original and variable length3      * @paramSource4      * @parammin5      * @return6      */7      Public StaticBitmap Createcircleimage (Bitmap source,intradius) {8 Bitmap scaledsrcbmp;9         intdiameter = radius * 2;Ten         //In order to prevent the width of the height is not equal, resulting in a circular picture deformation, so the rectangle in the middle of the largest square picture One         intBmpwidth =source.getwidth (); A         intBmpheight =source.getheight (); -         intSquarewidth = 0, squareheight = 0; -         intx = 0, y = 0; the Bitmap Squarebitmap; -         if(Bmpheight > Bmpwidth) {//taller than wide -Squarewidth = Squareheight =Bmpwidth; -x = 0; +y = (bmpheight-bmpwidth)/2; -             //capturing a square image +Squarebitmap =Bitmap.createbitmap (source, x, Y, Squarewidth, A squareheight); at}Else if(Bmpheight < Bmpwidth) {//large to High -Squarewidth = Squareheight =Bmpheight; -x = (bmpwidth-bmpheight)/2; -y = 0; -Squarebitmap =Bitmap.createbitmap (source, x, Y, Squarewidth, - squareheight); in}Else { -Squarebitmap =Source; to         } +         if(Squarebitmap.getwidth ()! =diameter -|| Squarebitmap.getheight ()! =diameter) { theScaledsrcbmp =bitmap.createscaledbitmap (squarebitmap, diameter, *Diametertrue); $}Else {Panax NotoginsengScaledsrcbmp =Squarebitmap; -         } theBitmap output =Bitmap.createbitmap (Scaledsrcbmp.getwidth (), + scaledsrcbmp.getheight (), config.argb_8888); ACanvas Canvas =NewCanvas (output); the  +Paint paint =NewPaint (); -Rect rect =NewRect (0, 0, Scaledsrcbmp.getwidth (), $ scaledsrcbmp.getheight ()); $  -Paint.setantialias (true); -Paint.setfilterbitmap (true); thePaint.setdither (true); -Canvas.drawargb (0, 0, 0, 0);WuyiCanvas.drawcircle (Scaledsrcbmp.getwidth ()/2, theScaledsrcbmp.getheight ()/2, Scaledsrcbmp.getwidth ()/2, - paint); WuPaint.setxfermode (NewPorterduffxfermode (mode.src_in)); - Canvas.drawbitmap (scaledsrcbmp, rect, rect, paint); AboutBMP =NULL; $Squarebitmap =NULL; -Scaledsrcbmp =NULL; -         returnoutput; -}

Initialize location information:

1 New LATLNG (39.963175, 116.400244);

Initialize Overlayoptions:

1 New markeroptions (). Position (position_1). Icon (friend_1) 2                 . ZIndex (9). draggable (true);

Then add to the map via Addoverlay:

1 mmarkera = (Marker) (Mbaidumap.addoverlay (OoA));

Registration Setonmarkerclicklistener:

Mbaidumap.setonmarkerclicklistener (new  Onmarkerclicklistener () {            public  Boolean Onmarkerclick (final  Marker Marker) {       //  todo to determine Mmarkera click events       }}

When exiting, release the resource:

@Overrideprotected voidOnPause () {//Mapview life cycle is synchronized with activity, call Mapview.onpause () when activity hangsMmapview.onpause (); Super. OnPause (); } @Overrideprotected voidOnresume () {//the life cycle of the Mapview is synchronized with the activity and needs to be called mapview.onresume () when activity resumesMmapview.onresume (); Super. Onresume (); } @Overrideprotected voidOnDestroy () {//the life cycle of the Mapview is synchronized with the activity and needs to be called Mapview.destroy () when the activity is destroyedMmapview.ondestroy (); Super. OnDestroy (); //Reclaim Bitmap Resourcesfriend_1.recycle (); }

Android Baidu map Add Marker by cropping a picture