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Added in API level 1

public static interface RadioGroup.OnCheckedChangeListener

android.widget.RadioGroup.OnCheckedChangeListener

在此组中选中的单选按钮发生变化时要调用回调的接口定义。

Public methods
`abstract void`	`onCheckedChanged(RadioGroup group, int checkedId)` 当选中的单选按钮发生变化时调用。

abstract void

onCheckedChanged(RadioGroup group, int checkedId)

当选中的单选按钮发生变化时调用。

Added in API level 1

void onCheckedChanged (RadioGroup group, 
                int checkedId)

当选中的单选按钮发生变化时调用。当选择被清除时，checkedId为-1。

Parameters
`group`	`RadioGroup`: the group in which the checked radio button has changed
`checkedId`	`int`: the unique identifier of the newly checked radio button