本文介绍了在自定义ListAdapter类中显示AlertDialog的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我很难处理在扩展BaseAdapter的Custom ListView类中显示AlertDialog的问题.
I am having a hard time dealing with displaying a AlertDialog inside a Custom ListView class which extends a BaseAdapter.
AlertDialog.Builder alertbox = new AlertDialog.Builder(getParent().getApplicationContext());
alertbox.setMessage("No Internet Connection");
alertbox.setTitle("Warning");
alertbox.setIcon(R.drawable.trn_03);
alertbox.setNeutralButton("OK",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface arg0,
int arg1) {
}
});
alertbox.show();
上面是我正在使用的代码，而LogCat错误是
The above is the code I am using, and the LogCat error is,
06-16 11:33:25.686: ERROR/AndroidRuntime(690): android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application
我认为问题在于背景.我尝试了几种选择.但是没有办法.有人可以帮我吗?
I believe that the problem is because of the context. I tried a few alternative. But none works. Can anyone help me in this?.
推荐答案
对上下文进行一些细微的修改对我来说是个窍门.这是已编辑的代码段.
A slight modification with the context did teh trick for me. Here is the edited snippet.
AlertDialog.Builder alertbox = new AlertDialog.Builder(v.getRootView().getContext());
alertbox.setMessage("No Internet Connection");
alertbox.setTitle("Warning");
alertbox.setIcon(R.drawable.trn_03);
alertbox.setNeutralButton("OK",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface arg0,
int arg1) {
}
});
alertbox.show();
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