解决Your content must have a ListView whose id attribute is "android.R.id.list"的问题
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在使用ListView控件时id命名有个要注意的地方:当你程序报错:Your content must have a ListView whose id attribute is "android.R.id.list"
当主Activity继承了ListActivity,而ListActivity中必须有一个ListView,因为ListActivity启动时会默认去寻找这个ListView的id,如果没有找到,就会报错。书写源文件的id不能像平常自定义id一样的格式,并且id名是固定的list。如下:
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