-3
我遇到一个NullPointerException与此代码:NullPointerException - 该怎么办?
kuglebutton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if(toggle.isChecked())
{
counter1 = counter1 + 10;
column1tv.setText("" + counter1);
}
else
{
counter1 = counter1 - 2;
column1tv.setText("" + counter1);
}
}
});
谁能告诉我,我做错了什么,也许如何解决它?
kuglebutton或toogle或column1tv为空。 – Blackbelt 2012-02-29 12:20:05
指定行丢弃n – jeet 2012-02-29 12:21:13
看看异常的堆栈跟踪,看看哪一个代码生成它 – Elemental 2012-02-29 12:21:37