你可以做这样的事情。

public static Drawable getDrawable(String name) {

Context context = YourApplication.getContext();

int resourceId = context.getResources().getIdentifier(name, "drawable", YourApplication.getContext().getPackageName());

return context.getResources().getDrawable(resourceId);

}

为了从任何地方访问上下文，您可以扩展Application类。

public class YourApplication extends Application {

private static YourApplication instance;

public YourApplication() {

instance = this;

}

public static Context getContext() {

return instance;

}

}

并将其映射到您的Manifest application标签中

android:name=".YourApplication"

....