苹果系统的输入法设置主要包括输入法的添加和移除，以及在切换输入法时候各种输入法的切换顺序的设置。
步骤如下：
1、点击设置通用功能，进入键盘功能。
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2、在弹出的键盘功能界面，点击添加新键盘按钮。
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3、在打开的输入法窗口，选择需要的输入法。
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4、如果手机里已经提前下载好非自带输入法，可以通过添加功能载入手机输入法界面。
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5、给输入法排序，方便输入时候进行切换，只需要点击右上角的编辑按钮即可。
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6、利用输入法右边的横杆，按住拖动来调整输入法的顺序。
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用这样的方法就可以把下载好的搜狗或百度输入法设置为IPAD默认输入法了。