我将我的纬度和经度 储存在内容提供商中 作为一种真实的类型。
当我使用光标检索它时,我使用 .getDouble ,这意味着现在这是双倍的。
此方法只接受内型 newGeopoint( 纬度, 经度) 。
当我尝试把拉特和罗恩从双倍转换为一文时, 我得到了Java null指针例外。
这就是我尝试的 Int(纬度 * 1E6) ; 你能解释一下吗?
<强 > 更新
我将这个双倍值转换为字符串, 然后传递到吐司, 我得到的值在吐司中。 现在的问题是, 我如何从双倍转换为内注, 从而失去浮点 。
提前谢谢!
乘法后尝试铸造 :
int longitude = (int) (longitudeInDouble * 1E6)
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