我想從對話框中獲取一個字符串,兩個整數和一個timepicker結果,以創建此對話框的活動。我怎樣才能將這些信息傳遞給這個活動? 下面是我的代碼。將數據從對話框傳遞到創建的活動
package ilachatirlatici.pack.net;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
public class HapHatirlatici extends Activity{
Button ekleButton;
boolean eklendiMi;
EditText ilacAdi;
String ilacAdiString;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.haphatirlatici);
// After creating the activity setting other things for running
ekleButton = (Button) findViewById(R.id.EkleButton);
eklendiMi = false;
ilacAdiString = "";
ekleButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
ilacAdi = (EditText) findViewById(R.id.KayitAdiEditText);
View layout = getLayoutInflater().inflate(R.layout.ekle_dialog, null);
AlertDialog.Builder builder = new AlertDialog.Builder(HapHatirlatici.this);
builder.setPositiveButton(R.string.ekle,new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
eklendiMi = true;
ilacAdiString = ilacAdi.getText().toString();
//ilacAdiString = ilacAdi.getEditableText().toString();
databaseEkle(eklendiMi, ilacAdiString);
}
});
builder.setNegativeButton(R.string.vazgec, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
eklendiMi = false;
databaseEkle(eklendiMi, "");
}
});
builder.setView(layout);
AlertDialog alertDialog = builder.create();
alertDialog.setTitle("Ilac Ekleme");
alertDialog.show();
}
});
}
public boolean databaseEkle(boolean eklemeVarMi, String ilacAdi)
{
boolean sonuc = false;
System.out.println(ilacAdi);
return sonuc;
}
}
我想在正面的按鈕部分得到結果。我只實現了字符串部分。由於其他部分將是相同的。如何將此字符串傳遞給databaseEkle()
函數?
是不是好像你已經傳遞了價值? – waqaslam 2012-02-25 21:02:41
是的,它似乎是這樣。但是,當它進入正面按鈕部分時,應用程序會強制關閉。該部分引發空指針異常。 – 2012-02-25 21:27:01
你也可以粘貼異常堆棧跟蹤。帶有try catch語句的 – waqaslam 2012-02-25 22:01:43