Question

我可以查看几个复选框，也可以在点击按钮之前取消选中它们我有一张桌子，我在其中插入我点击的复选框问题是我还要插入一个取消选中的那个这是我的代码：

public class InscriptionAssuranceRemorqueur extends AppCompatActivity implements AdapterView.OnItemClickListener, View.OnClickListener {

public static ArrayList<Assurance> assuranceArray = new ArrayList<Assurance>();
private ListView list_assurance;
private Button btn_confirmation;
private CheckBox checkbox;

private double largeur;
private double longueur;
private double poids;
private String nom;
private String mail;
private String tel;
private String mdp;
private TextView txt;
ArrayList<Assurance> tab = new ArrayList<Assurance>();
private CheckBox chkIos;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.fen_inscription_assurance_remorqueur);

    //Intent
    Intent x = this.getIntent();
    nom = x.getExtras().getString("nomCompagnie");
    mail = x.getExtras().getString("mail");
    tel = x.getExtras().getString("tel");
    mdp = x.getExtras().getString("mdp");
    String largeur = x.getExtras().getString("largeur");
    String longueur = x.getExtras().getString("longueur");
    String poids  = x.getExtras().getString("poids");
    this.largeur = Double.parseDouble(largeur);
    this.longueur = Double.parseDouble(longueur);
    this.poids = Double.parseDouble(poids);


    //remplir le tab des compagnies d'assurance
    assuranceArray.add(new Assurance("Gat@gmail.com","GAT"));
    assuranceArray.add(new Assurance("STAR@gmail.com","STAR"));
    assuranceArray.add(new Assurance("Comar@gmail.com","Comar"));
    assuranceArray.add(new Assurance("Ctama@gmail.com","Ctama"));

    //Récupération

    list_assurance = (ListView)findViewById(R.id.list_assurance);
    btn_confirmation = (Button)findViewById(R.id.btn_cfrm_as_rm);

    //Adapter
    MonAdapter adapter = new MonAdapter(this,assuranceArray);
    list_assurance.setAdapter(adapter);
    list_assurance.setOnItemClickListener(this);

    ArrayList<String> selectedStrings = new ArrayList<String>();

    //Ecouteurs

    btn_confirmation.setOnClickListener(this);


}

@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {


    // When clicked, show a toast with the TextView text
    Assurance a = (Assurance) parent.getItemAtPosition(position);
    Toast.makeText(getApplicationContext(),
            "Clicked on Row: " + a.getNomCompagnie(),
            Toast.LENGTH_LONG).show();


}

@Override
public void onClick(View v) {
    int i=0,j=0;
    Boolean test=true;

    if(v==btn_confirmation)
    {


        while (j<assuranceArray.size())
        {
            Log.d("test",assuranceArray.get(j).getNomCompagnie()+" "+j);
            j++;

        }
    }}



public void itemClicked(View v) {
    //code to check if this checkbox is checked!
    int i=0;



    CheckBox checkBox = (CheckBox)v;

    assuranceArray.add(new Assurance ("email",checkBox.getText().toString()));
    }



}

怎么办？

Answer 1

你有两个问题。

您永远不会选中复选框状态（已选中或未选中）
您始终在视图点击时向ensureArray添加元素。只有选中复选框后才应添加它。如果取消选中，则从数组中删除元素。

所以你会有类似的东西：

if (checkbox.isChecked()) {  
   assuranceArray.add(new Assurance("email",checkBox.getText().toString()));  
} else {  
   for (Assurance assurance : assuranceArray) {  
       if (assurance.getEmail().equals(checkBox.getText().toString())  {  
          assuranceArray.remove(assurance);
          //You can exit the loop as you find a reference
          break;
       }  
   }
}

Answer 2

这样，您可以在复选框上从数组添加/删除元素选中/取消选中是否可以混淆

https://www.youtube.com/watch?v=asQbaMaOrEQ&t=153s

或 https://github.com/pamrwt/checkbox_check_uncheck/blob/master/app/src/main/java/o/pam/checkbox_check_uncheck/SpinAdapter.java

label.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
                @Override
                public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                    if (isChecked){
                        checkedMonthArray.add(names[position]);
                    }else {
                        checkedMonthArray.remove(names[position]);
                    }
                    Log.e("checkedMonthArray",checkedMonthArray.toString());
                }
            });

在Array中添加选中的CheckBox，从Array中删除未选中的CheckBox

2 个答案: