java - How to bring overlapping SurfaceView to the front? -

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i doing matlab-style heat map plot in android , decided use overlapping combination of glsurfaceview heat map (if don't know heat map is, don't worry it) , surfaceview axes labelling, bitmaps on top of heat map, etc. way glsurfaceview can things @ , canvas-based surfaceview can things at. surfaceview has transparent background glsurfaceview can seen through it.

my problem glsurfaceview appears come "top" when rendered, , not able force surfaceview go top using "bringtofront()" method. there way this? have turned continuous rendering off, manually render surfaceview ("auxiliary") when render glsurfaceview.

public void ondrawframe(gl10 gl) {     log.d(tag, "heatmapview ondrawframe");      gl.glclear(gl10.gl_color_buffer_bit | gl10.gl_depth_buffer_bit);     gl.glmatrixmode(gl10.gl_modelview);     gl.glloadidentity();      heatmap.draw(gl);     auxiliary.draw(); // surfaceview draw }     /**  * function draws our heat map on screen.  * @param gl  */ public synchronized void draw(gl10 gl) {     log.d(tag, "heatmap draw");     if (!openglsetup) {         gl.glfrontface(gl10.gl_cw);         gl.glvertexpointer(3, gl10.gl_float, 0, vertexbuffer);         gl.glcolorpointer(4, gl10.gl_float, 0, colorbuffer);         openglsetup = true;     }      gl.gldrawelements(gl10.gl_triangles, curindexbufferlen, gl10.gl_unsigned_short, indexbuffer);     datadirty = false; }  /**  * function draws axes , bitmaps.  */ public void draw() {     log.d(tag, "draw");     canvas canvas = holder.lockcanvas(null);      canvas.drawcolor( 0, porterduff.mode.clear );      paint paint = new paint();     paint.setantialias(true);     paint.setstyle(paint.style.fill);     paint.settextsize(16);     paint.setcolor(color.argb(255,255,255,255));     canvas.rotate(90f, 300, 300);     canvas.drawtext("azimuth", 250, 590, paint);     canvas.rotate(-90f, 300, 300);     canvas.drawtext("freq (ghz)", 525, 555, paint);      holder.unlockcanvasandpost(canvas);     bringtofront(); }  protected void onvisibilitychanged (view changedview, int visibility) {     bringtofront(); }

obviously isn't code- tried show relevant parts. ideas on how can surfaceview (auxiliary) on top?

the answer given in this thread.


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