如何在android复选框检查更改上接收事件？
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How to receive a event on android checkbox check change?
提问by Annerajb
What would be the correct way of receiving and sending an event when a check box gets enabled or disabled?
当复选框被启用或禁用时，接收和发送事件的正确方法是什么？
In C# I could just easily double click and all the code would be done for me. But in android it appears to be a bit more obscure. I thought of using the touch event handlers but then if the user has a keyboard it won't detect the change since it's not touch. I figure android should have a native event for check box state change.
在 C# 中，我可以轻松地双击，所有代码都会为我完成。但在android中它似乎有点模糊。我想过使用触摸事件处理程序，但是如果用户有键盘，它不会检测到更改，因为它不是触摸。我认为 android 应该有一个用于复选框状态更改的本机事件。
回答by Cristian
CheckBox repeatChkBx = ( CheckBox ) findViewById( R.id.repeat_checkbox );
repeatChkBx.setOnCheckedChangeListener(new OnCheckedChangeListener()
{
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked)
{
if ( isChecked )
{
// perform logic
}
}
});
回答by Phileo99
Since CheckBox (eventually) extends View, you can use a standard OnClickListener to detect when the CheckBox is actually tapped by the user (as opposed to the ListView updates):
由于 CheckBox（最终）扩展了 View，您可以使用标准的 OnClickListener 来检测用户实际点击 CheckBox 的时间（与 ListView 更新相反）：
CheckBox repeatChkBx = ( CheckBox ) findViewById( R.id.repeat_checkbox );
repeatChkBx.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if ( ((CheckBox)v).isChecked() ) {
// perform logic
}
}
});
回答by Sunil
Try this
尝试这个
CheckBox checkbox=(CheckBox)findViewById(R.id.checkbox);
checkbox.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v)
{
if (checkbox.isChecked())
{
//Perform action when you touch on checkbox and it change to selected state
}
else
{
//Perform action when you touch on checkbox and it change to unselected state
}
}
});
