このようなリストビューを作成するコードがあります
class LoadAllProduct extends AsyncTask<String, String, String> {
/**
* Before starting background thread Show Progress Dialog
* */
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(allproduct.this);
pDialog.setMessage("Loading product. Please wait...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(false);
pDialog.show();
}
/**
* getting All products from url
* */
protected String doInBackground(String... args) {
Cursor cursor;
int i=0;
while(cursor.moveToNext()){
id_produk[i] = cursor.getInt(0);
String title = cursor.getString(1);
//String price = cursor.getString(2);
//String desc = cursor.getString(3);
//String how_to = cursor.getString(4);
String time = cursor.getString(5);
path_image[i] = cursor.getString(7);
Cursor cur = db.getProductLink(id_produk[i]);
int y = 0;
String link = "";
while(cur.moveToNext()){
if(y == 0) link = cur.getString(0);
else link = link + "\n" + cur.getString(0);
y++;
}
product_item[i] = new MenuItem(title, link, time, path_image[i]);
i++;
cur.close();
}
cursor.close();
db.close();
return null;
}
/**
* After completing background task Dismiss the progress dialog
* **/
protected void onPostExecute(String file_url) {
// updating UI from Background Thread
runOnUiThread(new Runnable() {
public void run() {
mainlist.setAdapter(new ListMenuAdapter(product_item));
}
});
pDialog.dismiss();
}
}
そして今、私はこのコードでリストビューの選択項目をクリックするだけで私の製品の詳細を表示したいと思います
mainlist.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// getting values from selected ListItem
String pid = productList.get(position).get(TAG_PID);
// Starting new intent
Intent in = new Intent(getApplicationContext(),editproductActivity.class);
// sending pid to next activity
in.putExtra(TAG_PID, pid);
in.putExtra("phone", mPhoneNumber);
in.putExtra("daftar", daftar);
startActivityForResult(in, 100);
}
});
}
そして、このログ猫はこれを示しています、そして私はエラーが原因だと思いますString pid = productList.get(position).get(TAG_PID);
11-06 12:46:25.305: ERROR/AndroidRuntime(1616): FATAL EXCEPTION: main
11-06 12:46:25.305: ERROR/AndroidRuntime(1616): java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0
11-06 12:46:25.305: ERROR/AndroidRuntime(1616): at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:257)
11-06 12:46:25.305: ERROR/AndroidRuntime(1616): at java.util.ArrayList.get(ArrayList.java:311)
11-06 12:46:25.305: ERROR/AndroidRuntime(1616): at shoop3.android.edu.allproduct$4.onItemClick(allproduct.java:175)
11-06 12:46:25.305: ERROR/AndroidRuntime(1616): at android.widget.AdapterView.performItemClick(AdapterView.java:284)
11-06 12:46:25.305: ERROR/AndroidRuntime(1616): at android.widget.ListView.performItemClick(ListView.java:3382)
11-06 12:46:25.305: ERROR/AndroidRuntime(1616): at android.widget.AbsListView$PerformClick.run(AbsListView.java:1696)
11-06 12:46:25.305: ERROR/AndroidRuntime(1616): at android.os.Handler.handleCallback(Handler.java:587)
11-06 12:46:25.305: ERROR/AndroidRuntime(1616): at android.os.Handler.dispatchMessage(Handler.java:92)
11-06 12:46:25.305: ERROR/AndroidRuntime(1616): at android.os.Looper.loop(Looper.java:123)
11-06 12:46:25.305: ERROR/AndroidRuntime(1616): at android.app.ActivityThread.main(ActivityThread.java:4627)
11-06 12:46:25.305: ERROR/AndroidRuntime(1616): at java.lang.reflect.Method.invokeNative(Native Method)
11-06 12:46:25.305: ERROR/AndroidRuntime(1616): at java.lang.reflect.Method.invoke(Method.java:521)
11-06 12:46:25.305: ERROR/AndroidRuntime(1616): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
11-06 12:46:25.305: ERROR/AndroidRuntime(1616): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
11-06 12:46:25.305: ERROR/AndroidRuntime(1616): at dalvik.system.NativeStart.main(Native Method)
手伝ってもらえますか?ありがとう