java - 设置 Imageview 的背景

Question

我正在创建一个动态 ImageView 。

ImageView btnSend = new ImageView (this);

我需要放置一个包含图像状态的布局，这是 xml:

<? xml version = "1.0" encoding = "utf-8"?>
<selector
      xmlns: android = "http://schemas.android.com/apk/res/android">
      <item
           android: state_focused = "true"
           android: state_pressed = "false"
           android: drawable = "@ drawable/button_state3" />
      <item
           android: state_focused = "true"
           android: state_pressed = "true"
           android: drawable = "@ drawable/button_state2" />
      <item
           android: state_focused = "false"
           android: state_pressed = "true"
           android: drawable = "@ drawable/button_state2" />
      <item
           android: drawable = "@ drawable/button_state1" />
</ selector>

我使用 setBackgroundResource 属性进行了测试，但不起作用。

如何将此布局分配给 Imageview？

提前致谢。

Answer 1

您在此 XML 中创建的内容(顺便说一句，删除 @ 后面的空格)是 StateListDrawable不是您提到的布局。 因此，使用ImageView.setImageResource(R.drawable.mydrawable)设置它。