Question

我有一个带有按钮的自定义ListView，当我点击任何一行上的任一按钮时，我想在Listview上获取文本标签，现在只需弹出一个祝酒词。

我有list_item.xml：

<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal" android:layout_width="match_parent"
android:layout_height="match_parent">

<TableRow android:layout_width="fill_parent"
    android:id="@+id/TableRow_list_item"
    android:layout_height="wrap_content"
    android:gravity="center">

    <ImageView
        android:layout_width="0dp"
        android:layout_height="80dp"
        android:id="@+id/imageView_logo_utente"
        android:src="@drawable/icon_user_green"
        android:layout_column="1"
        android:layout_weight="1"/>

    <TextView
        android:textColor="#000000"
        android:id="@+id/nomec"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:text="Nome Completo"
        android:layout_weight="2"
        android:gravity="center"
        android:height="40dp"
        android:textSize="17dp"
        android:layout_column="1"/>

    <TextView
        android:textColor="#000000"
        android:id="@+id/tiposogget"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:text="Tipo Soggetto Etichetta"
        android:layout_weight="2"
        android:gravity="center"
        android:height="40dp"
        android:textSize="17dp"
        android:layout_column="1"/>

    <TextView
        android:textColor="#000000"
        android:id="@+id/cf"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:text="Codice Fiscale"
        android:gravity="center"
        android:height="40dp"
        android:textSize="17dp"
        android:layout_column="1"
        android:layout_weight="2" />


    <TextView
        android:textColor="#000000"
        android:id="@+id/idsogg"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:text="ID Soggetto"
        android:layout_weight="1"
        android:gravity="center"
        android:height="40dp"
        android:textSize="17dp"
        android:layout_column="1"/>

    <Button
        android:layout_width="0dp"
        android:layout_height="90dp"
        android:id="@+id/button_scan"
        android:layout_column="1"
        android:layout_weight="0.63"
        android:height="140dp"
        android:background="@drawable/custom_button_scanner"
        android:onClick="myClickHandler"
        android:focusable="false"/>


</TableRow>

按钮 “android：onClick =”myClickHandler“”..

在我的活动中，我有这个：

公共类ActivityListview扩展了AppCompatActivity {

//************VARIABILI GLOBALI*************

ListView lv;

static final String KEY_CF = "CodiceFiscale";
static final String KEY_ID = "IDSoggetto";
static final String KEY_NOMEC = "NomeCompleto";
static final String KEY_TIPOSOGGET = "TipoSoggettoEtichetta";

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


    lv = (ListView) findViewById(R.id.listView_resultXML);


   Example();

}



public void Example() {
    ArrayList<HashMap<String, String>> menuItems = new ArrayList<HashMap<String, String>>();

    // Adding menuItems to ListView
    ListAdapter adapter = new SimpleAdapter(this, menuItems,
            R.layout.list_item,
            new String[]{KEY_CF, KEY_ID, KEY_NOMEC, KEY_TIPOSOGGET}, new int[]{
            R.id.cf, R.id.idsogg, R.id.nomec, R.id.tiposogget});
    // selecting single ListView item
    ViewGroup headerview = (ViewGroup) getLayoutInflater().inflate(R.layout.header_listview, lv, false);
    lv.setAdapter(null);
    lv.addHeaderView(headerview);
    lv.setAdapter(adapter);





public void myClickHandler(View v)
{
    // HERE I WOULD LIKE TO get vaule as method setOnItemClickListener
    Toast.makeText(ActivityListviewScanner.this, "value is:", Toast.LENGTH_LONG).show();

}

方法：

// listening to single listitem click
    lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {

        //Metodo per prelevare dati al click sulla casella della ListView
        @Override
        public void onItemClick(AdapterView<?> parent, View view,
                                int position, long id) {
            // getting values from selected ListItem
            String string_example = ((TextView) view.findViewById(R.id.cf)).getText().toString();

        }
    });
}

}

我想在onclick按钮中执行..

我该怎么办？

谢谢大家，对不起我的英文

Answer 1

您需要从SimpleAdapter扩展，这样您就可以在监听器中保存对textview的引用，您可以在适配器的getView方法中声明它。

如果您在创建适配器时需要帮助，请查看以下其他问题： Custom Adapter for List View

Answer 2

创建一个扩展BaseAdapter的类。并在getview方法中注册你的按钮并设置onClick函数。

public class Holder {
        TextView tv1;
        TextView tv2;
        TextView tv3;
        TextView tv4;
        Button bt;
        ImageView img;
    }

    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
        Holder holder = new Holder();
        View rowView;
        rowView = inflater.inflate(R.layout.list_item, null);
         holder.tv1 = (TextView) rowView.findViewById(R.id.nomec);
        holder.tv2 = (TextView) rowView.findViewById(R.id.tiposogget);
        holder.tv3 = (TextView) rowView.findViewById(R.id.cf);
        holder.tv4 = (TextView) rowView.findViewById(R.id.idsogg);
        holder.img = (ImageView) rowView.findViewById(R.id.imageView_logo_utente);
        holder.bt = (Button) rowView.findViewById(R.id.button_scan);
        holder.bt.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            //write your code here
        }
    });


return rowView;

}

ANDROID如何在按钮点击

2 个答案: