android - 多个 AutoCompleteTextView 的 onItemClickListener

Question

我有三个 AutoCompleteTextView 并设置了 onItemClickListener，你能帮我知道哪个 AutoCompleteTextView 被点击了吗

public class ProductMainListViewer extends AppCompatActivity implements AdapterView.OnItemClickListener {

    CustomerDataBaseAdapter customerDataBaseAdapter;
    AutoCompleteTextView txtUserName;
    AutoCompleteTextView txtContactNo;
    AutoCompleteTextView txtSearchProduct;
    TextView txtDateAndTime;
    TextView txtQty;
    TextView txtSalePrize;
    TextView txtRunit;
    TextView txtWunit;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        getWindow().requestFeature(Window.FEATURE_ACTION_BAR);
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_product_main_list_viewer);
        customerDataBaseAdapter = new CustomerDataBaseAdapter(this);
        customerDataBaseAdapter = customerDataBaseAdapter.open();
        ArrayList<Customer> customers = new ArrayList<>();
        ArrayList<ProductsDetails> productsDetails = new ArrayList<>();

        try {
            customers = customerDataBaseAdapter.getCustomerList();
        } catch (Exception e) {
            e.printStackTrace();
        }

        try {
            productsDetails = customerDataBaseAdapter.getProductList();
        } catch (Exception e) {
            e.printStackTrace();
        }
        txtUserName = (AutoCompleteTextView) findViewById(R.id.editTextUserNamecheck);
        CustomArrayAdapterAutoCmplt adapter1 = new CustomArrayAdapterAutoCmplt(this, R.layout.activity_auto_cmplt_custom, customers);
        txtUserName.setThreshold(1);
        txtUserName.setAdapter(adapter1);
        txtUserName.setOnItemClickListener(this);

        txtContactNo = (AutoCompleteTextView) findViewById(R.id.editTextPhoneNoNew);
        CustomPhoneArrayAdapterAutoCmplt adapter2 = new CustomPhoneArrayAdapterAutoCmplt(this, R.layout.activity_auto_cmplt_custom, customers);
        txtContactNo.setThreshold(1);
        txtContactNo.setAdapter(adapter2);
        txtContactNo.setOnItemClickListener(this);

        txtSearchProduct = (AutoCompleteTextView) findViewById(R.id.searchProduct);
        ProductAutoCmplt adapter3 = new ProductAutoCmplt(this, R.layout.activity_auto_cmplt_custom, productsDetails);
        txtSearchProduct.setThreshold(1);
        txtSearchProduct.setAdapter(adapter3);
        txtSearchProduct.setOnItemClickListener(this);
        txtDateAndTime = (TextView) findViewById(R.id.dateAndTime);
        txtQty = (TextView) findViewById(R.id.txtQty);
        txtSalePrize = (TextView) findViewById(R.id.txtPrize);
        txtRunit = (TextView) findViewById(R.id.txtRUnit);
        txtWunit = (TextView) findViewById(R.id.txtWUnit);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                        .setAction("Action", null).show();
            }
        });


    }


    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        try {
            if (txtUserName.getText().equals("")) {
                Customer item = (Customer) txtContactNo.getAdapter().getItem(position);
                txtUserName.setText(item.getMember_name());

            } else {
                Customer item = (Customer) txtUserName.getAdapter().getItem(position);
                txtContactNo.setText(item.getContactType());
            }

            DateFormat df = new SimpleDateFormat("dd.MM.yyyy  'at' HH:mm:ss ");
            String date = df.format(Calendar.getInstance().getTime());
            txtDateAndTime.setText(date);

        } catch (Exception e) {
        }


    }



}

Answer 1

在 onItemClick 中，您可以识别 Adapter AdapterView 父级，因此您可以首先识别父级适配器。

类似下面的内容

@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
    if (parent.getAdapter().getClass().equals(ProductAutoCmplt .class)) {
      //do your stuff
    }
    else if(parent.getAdapter().getClass().equals(CustomPhoneArrayAdapterAutoCmplt .class)){ 
//do your stuff
}else if(parent.getAdapter().getClass().equals(CustomArrayAdapterAutoCmplt.class)){
//do your stuff
}
}