我的場景,主屏幕上有一個按鈕,當用戶單擊該按鈕時,會出現一個對話框,其中包含一個textedit和2按鈕。我的問題是,當我嘗試從編輯文本中獲取值時,它似乎什麼都沒有發生,並且該值始終爲NULL。如何從customDialog獲取值EditText
這是我的代碼:我宣佈的主要活動
private void popup() {
AlertDialog.Builder builder;
AlertDialog alertDialog;
LayoutInflater inflater = (LayoutInflater) this.getSystemService(LAYOUT_INFLATER_SERVICE);
View dialog = inflater.inflate(R.layout.isbn_dialog,
(ViewGroup) findViewById(R.id.layout_root));
// The edit text from dialog
isbnInput = (EditText)dialog.findViewById(R.id.isbn);
builder = new AlertDialog.Builder(this);
builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}
});
builder.setPositiveButton("Add", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(getApplicationContext(), isbnInput.getText().toString(), Toast.LENGTH_LONG);
}
});
builder.setView(dialog);
alertDialog = builder.create();
alertDialog.setTitle("Enter ISBN Number");
alertDialog.show();
}
所以,我怎樣才能從對話框編輯文本正確值對話框裏面?