设置图像/背景源动态 [英] Set image / background source dynamically

问题描述

是否有可能来动态设置背景图片？！

is there any possibility to set background image dynamically?!

我试着解释一下我的意思。

I try to explain what I mean.

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); 

感谢你在前进，

穆尔

诗。 我也看了这篇文章。这将在一个答案建议，使用Java反射的名字来获得R类的字段。但我从来没有使用过reflextion。一个例子是非常有益的

Ps. I also read this article. It would suggested in one answer, to use java reflection to get a field of the R class by name. But I've never used reflextion before. An example would be very helpfull

推荐答案

有时候，我应该采取更多的时间进行搜索：）

Sometimes I should take a bit more time for searching :)

我找到了答案阅读这篇文章，并能正常工作对我来说：

I found the answer reading this article, and it works fine for me:

// 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);

这篇关于设置图像/背景源动态的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！