动态设置图像/背景源

Question

是否有可能动态设置背景图像？!

我试着解释一下我的意思.

String picVariable = getPictureFromServer();

ImageView image = (ImageView)v.findViewById(R.id.dynamic_image);

// I know, that doesn't work, but that's the way I looking for
image.setBackgroundResource(picVariable); 

先感谢您,

穆尔

PS.我也读过这篇文章.在一个答案中,它会建议使用java反射按名称获取R类的字段.但我以前从未使用过反射.一个例子非常有用

Answer 1

有时我会花更多的时间来搜索:)

我找到了解读这篇文章的答案,它对我来说很好用:

// The server says, it should be *.png
String picName = getPictureFromServer();
picName = picName.replace(".png", "");

Resources r = getResources();
int picId = r.getIdentifier(picName, "drawable", "com.mypackage.myapp");

ImageView image = (ImageView)v.findViewById(R.id.dynamic_image);
image.setBackgroundResource(picId);