java - 如何在ArrayList中存储选定的复选框值

Question

我想将选定的复选框值存储在ArrayList中。有五个复选框，如果我选择三个，那么它们将存储在ArrayList上。我使用了String []ad = new String[5];它写在不存储checkbox的值

public class MainActivity extends AppCompatActivity implements View.OnClickListener {
List<String> mList = new ArrayList<>();
CheckBox android, java, python, php, unity3D;
Button submitButton;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    android = (CheckBox) findViewById(R.id.androidCheckBox);
    android.setOnClickListener(this);
    java = (CheckBox) findViewById(R.id.javaCheckBox);
    java.setOnClickListener(this);
    python = (CheckBox) findViewById(R.id.pythonCheckBox);
    python.setOnClickListener(this);
    php = (CheckBox) findViewById(R.id.phpCheckBox);
    php.setOnClickListener(this);
    unity3D = (CheckBox) findViewById(R.id.unityCheckBox);
    unity3D.setOnClickListener(this);

    submitButton = (Button) findViewById(R.id.submitButton);
    submitButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Log.e("ArrayList Values*******",mList.toString());
        }
    });

}

@Override
public void onClick(View view) {
    switch (view.getId()) {
        case R.id.androidCheckBox:
            if (android.isChecked()) {
                mList.add(String.valueOf(android.getText()));
                Log.e("Android*******",mList.toString());
            }
            break;

        case R.id.javaCheckBox:
            if (java.isChecked()) {
                mList.add(String.valueOf(java.getText()));
                Log.e("Java*******",mList.toString());
            }
            break;

        case R.id.phpCheckBox:
            if (php.isChecked()) {
                mList.add(String.valueOf(php.getText()));
                Log.e("PHP*******",mList.toString());
            }
            break;

        case R.id.pythonCheckBox:
            if (python.isChecked()){
                mList.add(String.valueOf(python.getText()));
                Log.e("Python*******",mList.toString());
            }
            break;

        case R.id.unityCheckBox:
            if (unity3D.isChecked()){
                mList.add(String.valueOf(unity3D.getText()));
                Log.e("Unity*******",mList.toString());
            }
            break;
      }
    }
  }

Answer 1

只需创建一个列表并在点击事件触发时添加值即可:

final List<String> mList = new ArrayList<>();
mList.add("Your value");

注意:考虑实现 onCheckChangeListener 而不是 onClickListener 来处理您的复选框选择事件。