How to Use Checkboxes in SmartTable Columns (Android Studio)

To use a checkbox in a column of SmartTable in Android Studio, you can follow these steps:

1. Add the following dependency to your app-level build.gradle file:

implementation 'com.github.huangyanbin:SmartTable:2.1.5'

2. Create a model class for your table data that extends the BaseColumn class. Add a boolean field to represent the checkbox state:

public class MyModel extends BaseColumn {
    @Column(name = 'Name')
    private String name;
    
    @Column(name = 'Age')
    private int age;
    
    @Column(name = 'Checkbox')
    private boolean checkbox;
    
    // getters and setters
}

3. Create a layout file for your table view. Add a SmartTable view and a CheckBox view for the checkbox column:

<com.bin.david.form.core.SmartTable
    android:id="@+id/table"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

<CheckBox
    android:id="@+id/checkbox"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center_vertical"
    android:gravity="center" />

4. In your activity or fragment, initialize the SmartTable view and set the data source:

SmartTable<MyModel> table = findViewById(R.id.table);
List<MyModel> data = new ArrayList<>(); // populate with your data
table.setData(data);

5. To add the checkbox column, use the TableConfig class to configure the column. Set the Column object for the checkbox column to a CheckBoxColumn object:

TableConfig config = table.getConfig();
Column<Boolean> checkboxColumn = new Column<'Checkbox', new CheckBoxColumn<Boolean>>();
config.addColumn(checkboxColumn);

6. To customize the appearance of the checkbox column, use the TableStyle class. For example, to center the checkbox in the column, use the setGravity(Gravity.CENTER) method:

TableStyle style = new TableStyle();
style.setCheckBoxStyle(new CheckBoxStyle(Gravity.CENTER));
config.setTableStyle(style);

7. To handle checkbox state changes, set an OnCheckedChangeListener for the CheckBox view in the layout file. In the listener, update the corresponding MyModel object in the data source:

CheckBox checkbox = findViewById(R.id.checkbox);
checkbox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
    @Override
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
        int position = table.getAdapter().getSelectedList().get(0);
        MyModel model = data.get(position);
        model.setCheckbox(isChecked);
    }
});

Note that the getSelectedList() method returns a list of selected row positions in the table. In this example, we assume that only one row can be selected at a time. If multiple rows can be selected, you will need to iterate through the list and update each corresponding MyModel object.