android createbitmap函数内存溢出，求解如何进行处理out of memory溢出问题

android createbitmap函数内存溢出，求解如何进行处理out of memory溢出问题

局部核心代码：
bitmap = Bitmap.createBitmap(mSize.x, mSize.y, Config.ARGB_8888); 
				cacheBitmap = Bitmap.createBitmap(mSize.x, mSize.y, Config.ARGB_8888);  
				cacheCanvas = new Canvas();
				cacheCanvas.setBitmap(cacheBitmap);
				cacheCanvas.drawBitmap(bitmap, 0, 0, null);
				mSearchView.setImageBitmap(bitmap);