我正在通过执行以下操作从http流创建一个Drawable。HttpClientclient=newDefaultHttpClient();HttpGetget=newHttpGet(url);HttpResponseresponse=client.execute(get);InputStreamis=response.getEntity().getContent();Drawabledrawable=Drawable.createFromStream(is,"offerstask");returndrawable;我的问题是Drawable.createFromStream分配的内存

publicclassTestButtonextendsActivity{/**Calledwhentheactivityisfirstcreated.*/ImageButtonimgBtn;@OverridepublicvoidonCreate(BundlesavedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.main);imgBtn=(ImageButton)findViewById(R.id.image);//Stringurl="http://thenextweb.com/a