GLES20Canvas.flushCaches

   2248         void destroyLayers(final View view) {
   2249             if (view != null) {
   2250                 safelyRun(new Runnable() {
   2251                     @Override
   2252                     public void run() {
   2253                         if (mCanvas != null) {
   2254                             mCanvas.clearLayerUpdates();
   2255                         }
   2256                         destroyHardwareLayer(view);
   2257                         GLES20Canvas.flushCaches(GLES20Canvas.FLUSH_CACHES_LAYERS);
   2258                     }
   2259                 });
   2260             }
   2261         }

   2276         @Override
   2277         void destroyHardwareResources(final View view) {
   2278             if (view != null) {
   2279                 safelyRun(new Runnable() {
   2280                     @Override
   2281                     public void run() {
   2282                         if (mCanvas != null) {
   2283                             mCanvas.clearLayerUpdates();
   2284                         }
   2285                         destroyResources(view);
   2286                         GLES20Canvas.flushCaches(GLES20Canvas.FLUSH_CACHES_LAYERS);
   2287                     }
   2288                 });
   2289             }
   2290         }

   2312         static void startTrimMemory(int level) {
   2313             if (sEgl == null || sEglConfig == null) return;
   2314 
   2315             Gl20RendererEglContext managedContext =
   2316                     (Gl20RendererEglContext) sEglContextStorage.get();
   2317             // We do not have OpenGL objects
   2318             if (managedContext == null) {
   2319                 return;
   2320             } else {
   2321                 usePbufferSurface(managedContext.getContext());
   2322             }
   2323 
   2324             if (level >= ComponentCallbacks2.TRIM_MEMORY_COMPLETE) {
   2325                 GLES20Canvas.flushCaches(GLES20Canvas.FLUSH_CACHES_FULL);     <=====

   2326             } else if (level >= ComponentCallbacks2.TRIM_MEMORY_UI_HIDDEN) {
   2327                 GLES20Canvas.flushCaches(GLES20Canvas.FLUSH_CACHES_MODERATE); <=====

   2328             }
   2329         }