Question

我有一个我在AlertDialog中显示的数组，我想在点击该行时启动一个活动并传递一些数据。我创建了这个代码，但如果是数组有三个元素，则打开三个活动。我哪里错了？感谢

 final String[] choiceList = nome_op;
 final String[] idOperatoriList = id_nome_op;
  builder2.setItems(choiceList, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int item) {
            for (int i = 0; i < choiceList.length; i++) {
                Intent singole_usc = new Intent(getActivity(), Inserisci_m.class);
                Bundle extras = new Bundle();
                extras.putString("id", idOperatoriList[item]);
                extras.putLong("data", calendarioFooter.getTimeInMillis());
                singole_usc.putExtras(extras);
                startActivity(singole_usc);
            }
        }
    })
...

Answer 1

看起来你只需要从for循环中取出你的代码。像这样，

 final String[] choiceList = nome_op;
 final String[] idOperatoriList = id_nome_op;
  builder2.setItems(choiceList, new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialog, int item) {

            Intent singole_usc = new Intent(getActivity(), Inserisci_m.class);
            Bundle extras = new Bundle();
            extras.putString("id", idOperatoriList[item]);
            extras.putLong("data", calendarioFooter.getTimeInMillis());
            singole_usc.putExtras(extras);
            startActivity(singole_usc);

    }
})

索引变量i从不在块中使用。

Answer 2

在for循环外面有startActivity（）

Intent singole_usc = new Intent(getActivity(),
for (int i = 0;
i < choiceList.length; i++) {
    Inserisci_m.class);
    Bundle extras = new Bundle();
    extras.putString("id", idOperatoriList[item]);
    extras.putLong("data", calendarioFooter.getTimeInMillis());
    singole_usc.putExtras(extras);
}

startActivity(singole_usc);

Android按项启动活动

2 个答案: