我遇见了器官的问题，为什么我的R.drawable下面总是没有Off和On？看了老师说的Build Project，但是还是不行。而且还非常奇怪，我如果通过界面选取ImageView的src属性时是可以找的Off和On的，如下图：
但是到了代码里就找不到了，这个是为什么啊？
核动力小猪
2014-09-18
5 回答
编译的时候报下面的错误：
[2014-09-18 15:43:43 - ToggleButton_Test] res\drawable-hdpi\Off.jpg: Invalid file name: must contain only [a-z0-9_.]
[2014-09-18 15:43:43 - ToggleButton_Test] res\drawable-ldpi\Off.jpg: Invalid file name: must contain only [a-z0-9_.]
[2014-09-18 15:43:43 - ToggleButton_Test] res\drawable-mdpi\Off.jpg: Invalid file name: must contain only [a-z0-9_.]
[2014-09-18 15:43:43 - ToggleButton_Test] res\drawable-xhdpi\Off.jpg: Invalid file name: must contain only [a-z0-9_.]
[2014-09-18 15:43:43 - ToggleButton_Test] res\drawable-xxhdpi\Off.jpg: Invalid file name: must contain only [a-z0-9_.]
[2014-09-18 15:43:43 - ToggleButton_Test] res\drawable-hdpi\On.jpg: Invalid file name: must contain only [a-z0-9_.]
[2014-09-18 15:43:43 - ToggleButton_Test] res\drawable-ldpi\On.jpg: Invalid file name: must contain only [a-z0-9_.]
[2014-09-18 15:43:43 - ToggleButton_Test] res\drawable-mdpi\On.jpg: Invalid file name: must contain only [a-z0-9_.]
[2014-09-18 15:43:43 - ToggleButton_Test] res\drawable-xhdpi\On.jpg: Invalid file name: must contain only [a-z0-9_.]
[2014-09-18 15:43:43 - ToggleButton_Test] res\drawable-xxhdpi\On.jpg: Invalid file name: must contain only [a-z0-9_.]
这时为什么啊？我已经反复确认过了啊？
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