如何将String转换为Drawable

本文介绍了如何将String转换为Drawable的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我在drawable文件夹中有很多图标，它们的名称为String.如何访问可绘制文件夹并更改背景imageView(或任何视图)，请动态使用这些名称.谢谢

I have many icon in drawable folder and I have their name as String. How can I access to drawable folder and change background imageView (or any view) use these name in dynamically. Thanks

推荐答案

可以使用反射来完成:

String name = "your_drawable"; final Field field = R.drawable.getField(name); int id = field.getInt(null); Drawable drawable = getResources().getDrawable(id);

或使用Resources.getIdentifier():

String name = "your_drawable"; int id = getResources().getIdentifier(name, "drawable", getPackageName()); Drawable drawable = getResources().getDrawable(id);

然后在两种情况下都使用它来设置可绘制对象:

Then use this for setting the drawable in either case:

view.setBackground(drawable)