我有一个AlertDialog
它将数组显示为单个选定的选项:
protected boolean blFrom, blTo;
protected void showSelectToDialog() {
boolean[] checkedDate = new boolean[toDate.length];
int count = toDate.length;
DialogInterface.OnClickListener setD2 = new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
//TODO Auto-generated method stub
onChangeSelectedTo(which);
}
};
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Select To Year");
builder.setSingleChoiceItems(toDate, count, setD2);
builder.setCancelable(true);
builder.setPositiveButton("Cancel", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.dismiss();
}
});
dialog2 = builder.create();
dialog2.show();
}
protected void onChangeSelectedTo(int j) {
bTo.setText(toDate[j]);
sTo = ((AlertDialog)dialog2).getListView().getCheckedItemPosition();
blTo = true;
displayToast(String.valueOf(sTo));
to = j;
dialog.dismiss();
}
我想做的是第一次加载时应该显示默认值。一旦我选择了一个选项,对话框关闭,我再次打开相同的对话框,它应该显示我之前所做的选择并滚动到它。
我该如何实现它?
截至目前,我可以获得所选职位,但接下来该怎么办?
您可以将所选值存储在您的变量中Activity
或使用共享首选项 http://developer.android.com/reference/android/content/SharedPreferences.html
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