1. 程式人生 > >listview含有radiobtn,點選實現單選

listview含有radiobtn,點選實現單選

注意事項:
首先自定義ChoiceView類實現Checkable介面

public class ChoiceView extends FrameLayout implements Checkable{

    private TextView mTextView;
    public RadioButton mRadioButton;

    public ChoiceView(Context context) {
        super(context);
        View.inflate(context, R.layout.listview_installment_item, this
); mTextView = (TextView) findViewById(R.id.tv_qishu); mRadioButton = (RadioButton) findViewById(R.id.radiobtn); } public void setText(String text) { mTextView.setText(text); } @Override public void setChecked(boolean checked) { mRadioButton.setChecked(checked); } @Override
public boolean isChecked() { return mRadioButton.isChecked(); } @Override public void toggle() { mRadioButton.toggle(); } }

單選item的佈局listview_installment_item,我的佈局程式碼用了弘陽的AutoRelativeLayout庫,自己可以修改成安卓自己的RelativeLayout,另外需要注意的是radiobutton的android:clickable=”false”
android:focusable=”false”
android:focusableInTouchMode=”false”
這三個屬性必須加,要不會報錯

<?xml version="1.0" encoding="utf-8"?>
<com.lixue.aibei.autolayoutlib.AutoLinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:descendantFocusability="blocksDescendants"
    android:layout_height="match_parent">
<com.lixue.aibei.autolayoutlib.AutoRelativeLayout
    android:layout_width="match_parent"
    android:layout_marginLeft="20px"
    android:layout_marginRight="20px"
    android:layout_height="80px">
    <TextView
        android:id="@+id/tv_qishu"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
       android:layout_centerVertical="true"
        android:text="3期"
       android:textColor="@color/text_gray"
        />
    <RadioButton
        android:id="@+id/radiobtn"
        android:layout_width="54px"
        android:layout_height="54px"
        android:layout_alignParentRight="true"
        android:layout_centerVertical="true"
        android:clickable="false"
        android:focusable="false"
        android:focusableInTouchMode="false"
        android:button="@drawable/selector_radiobtn"
        />
</com.lixue.aibei.autolayoutlib.AutoRelativeLayout>
</com.lixue.aibei.autolayoutlib.AutoLinearLayout>

在activty的oncreate中,寫如下程式碼

   for(int i=0;i<5;i++){
                    PeriodandRateBean periodandRateBean=new PeriodandRateBean();
                    periodandRateBean.setLimit(i+"");
                    periodandRateBeanList.add(periodandRateBean);
                }
                ListAdapter adapter = new ArrayAdapter<PeriodandRateBean>(SocialsecurityLoanActivity.this, R.layout.listview_installment_item, periodandRateBeanList) {
                    @Override
                    public View getView(int position, View convertView, ViewGroup parent) {
                        final ChoiceView view;
                        if(convertView == null) {
                            view = new ChoiceView(SocialsecurityLoanActivity.this);
                        } else {
                            view = (ChoiceView)convertView;
                        }
                        view.setText(periodandRateBeanList.get(position).getLimit()+"個月");
                        return view;
                    }
                };
                   //這個屬性可以設定預設選中的項
               listView.setItemChecked(fenqi_select_pos, true);

PeriodandRateBean 這個bean是自己定義的,依據自己的需求來寫,我的效果最後實現的是這樣,這裡參考了稀土掘金大神的帖子,大家可以去看一下

這裡寫圖片描述