我正在显示简单的列表视图。在长按事件时，会显示 Dialog 以从 ListView 中删除该项目。这是我的代码：
myList = (ListView) findViewById(R.id.listSendEmailFinal);
myList.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
@Override
public boolean onItemLongClick(AdapterView<?> av, View v, int pos, long id) {
return onLongListItemClick(v,pos,id);
}
protected boolean onLongListItemClick(View v, final int pos, long id) {
final String str=myList.getItemAtPosition(pos).toString();
Log.i("ListView", "onLongListItemClick stirng=" + str);
AlertDialog.Builder builder = new
AlertDialog.Builder(EmailReceiversActivity.this);
builder.setMessage("Are you sure you want to exit?")
.setCancelable(false)
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
}
})
.setNegativeButton("No", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
AlertDialog alert = builder.create();
alert.show();
return true;
}
});
当我按下“是”按钮时，该项目应该从列表视图中删除。我使用了 ArrayAdapter。'listItems' 是一个字符串数组
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,listItems);
myList.setAdapter(adapter);
请帮我。