Question

我遇到了如何在变量中传递arrayList的所有值的问题。有没有办法可以将不同单选按钮的所有值都获取到单个变量中。这是我的评论项目

ArrayList < String > list1 = new ArrayList < String > ();
String rg1 = "*";
String rg2 = "*";
String rg4 = "*";
String rg5 = "*";
list1 = "*"; // Getting error here it only accepts string , how  declare list1 with ArrayList
theFilter[5] = "0";
if (cbRegAffil.isChecked()) {
    int reg = rgRegAffil.getCheckedRadioButtonId();
    RadioButton rBtReg = (RadioButton) dia.findViewById(reg);
    rg1 = (String) rBtReg.getText();

}
if (cbAdmin.isChecked()) {
    int adm = rgAdmin.getCheckedRadioButtonId();
    RadioButton rBtAdm = (RadioButton) dia.findViewById(adm);
    rg2 = (String) rBtAdm.getText();
}

if (cbAmbience.isChecked()) {
    int amb = rgAmbience.getCheckedRadioButtonId();
    RadioButton rBtAmbience = (RadioButton) dia.findViewById(amb);
    rg4 = (String) rBtAmbience.getText();
}
if (cbTuition.isChecked()) {
    theFilter[5] = spin.getSelectedItem()
        .toString();
}

if (cbSpecialty.isChecked()) {
    int spec = rgSpecialty.getCheckedRadioButtonId();
    int spec2 = rgSpecialty2.getCheckedRadioButtonId();
    RadioButton rBtSpec = (RadioButton) dia.findViewById(spec);
    RadioButton rBtSpec2 = (RadioButton) dia.findViewById(spec2);
    list1.add((String) rBtSpec.getText());
    list1.add((String) rBtSpec2.getText());

}

TuitionFee = Integer.parseInt(theFilter[5]);
theFilter[0] = rg1;
theFilter[1] = rg2;
theFilter[3] = rg4;
theFilter[4] = rg5;
theFilter[6] = list1; // getting error within this part, how can I assign arrayList values here ?
fragment = new SchoolListFragmentFilter();
getSupportFragmentManager()
    .beginTransaction()
    .add(R.id.content_frame, fragment)
    .addToBackStack(null).commit();
mDrawerLayout.closeDrawer(expListView);
dia.dismiss();

我在这里从单选按钮

过滤此值

if (sReg[loop].equalsIgnoreCase(thisFilter[0])
                && sAdmin[loop].equalsIgnoreCase(thisFilter[1])
                && sAmbience[loop].equalsIgnoreCase(thisFilter[3])
                && amountTF >= theTuitionFee
                && sSpecialty[loop][subloop].equalsIgnoreCase(thisFilter[4])
                && sSpecialty[loop][subloop].equalsIgnoreCase(thisFilter[6])

这是附加程序，以便过滤sReg并从其余部分中选择全部。

(sReg[loop].equalsIgnoreCase((String)thisFilter[0])
                && ((String)thisFilter[1]).equalsIgnoreCase("*")
                && ((String)thisFilter[3]).equalsIgnoreCase("*") 
                && amountTF == 0
                && ((String)thisFilter[4]).equalsIgnoreCase("*")
                && ((String)thisFilter[6]).equalsIgnoreCase("*")) {
            list.add(sList[loop]);

Answer 1

将list1 = "*";替换为list1.add("*");

或者您可以在构造函数中执行此操作：

List<String> list1 = new ArrayList<>(Arrays.asList("val1", "val2", "val3"));

现在可以通过以下编辑来使用theFilter[6] = list1;。

编辑：

用Object theFilter[]=new Object[6]和

替换字符串theFilter [] = newString [6]

if (sReg[loop].equalsIgnoreCase(thisFilter[0])
                && sAdmin[loop].equalsIgnoreCase(thisFilter[1])
                && sAmbience[loop].equalsIgnoreCase(thisFilter[3])
                && amountTF >= theTuitionFee
                && sSpecialty[loop][subloop].equalsIgnoreCase(thisFilter[4])
                && sSpecialty[loop][subloop].equalsIgnoreCase(thisFilter[6])

由：

if (sReg[loop].equalsIgnoreCase((String)thisFilter[0])
                && sAdmin[loop].equalsIgnoreCase((String)thisFilter[1])
                && sAmbience[loop].equalsIgnoreCase((String)thisFilter[3])
                && amountTF >= theTuitionFee
                && sSpecialty[loop][subloop].equalsIgnoreCase((String)thisFilter[4])
                && filtered(sSpecialty[loop][subloop], (List<String>)thisFilter[6]))

和您的过滤方法：

private boolean filteredOne(String val, List<String> values) {
  boolean b = false;
  for(String s:values) {
    b |= s.equalsIgnoreCase(val);
  }
  return b;// true if one is equal
}

private boolean filteredAll(String val, List<String> values) {
  boolean b = true;
  for(String s:values) {
    b &= s.equalsIgnoreCase(val);
  }
  return b;// true if all are equal
}

将ArrayList值分配给变量

1 个答案: