项目单击时如何检查ListView的复选框? [英] How to check the CheckBox of ListView when item clicked?

问题描述

如何在单击项目时检查ListView的复选框?

How to check the CheckBox of ListView when item clicked?

我有一个带CheckBox，TextView，Button的ListView.

I have a ListView with CheckBox, TextView, Button.

在这里，我想选择ListView的多行，然后使用CheckBox.如果我单击一行，则要对其对应的CheckBox进行检查，并获取ListView的单击项的RowID.

Here i want to select multiple rows of ListView and so used CheckBox. If i click on a row, i want to make its corresponding CheckBox to be checked and get the RowID of the clicked item of ListView.

如果我单击Button，我想打开一个弹出窗口或另一个Screen(活动)，但是不能选中CheckBox.

If i click on Button, i want to open a pop-up or another Screen(Activity) but CheckBox must not be checked.

如何执行此操作?请帮忙.

How to do this? Please help.

谢谢.

这是我的布局外观.

使用Adapter到ListView的代码很简单.

   public class Adapter extends BaseAdapter{

    private Context context;
    Button btnView;
    CheckBox box;       
    ArrayList<String> altextView1;
    ArrayList<String> altextView2;


    public Adapter(Context c, Button view, CheckBox checkBox, ArrayList<String> textView1, ArrayList<String> textView2) {

        this.context=c;
        this.btnView=view;
        this.box=checkBox;
        this.altextView1=textView1;
        this.altextView2=textView2;
    }

    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return altextView1.size();
    }

    @Override
    public Object getItem(int arg0) {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public long getItemId(int arg0) {
        // TODO Auto-generated method stub
        return 0;
    }

    @Override
    public View getView(int arg0, View arg1, ViewGroup arg2) {
        // TODO Auto-generated method stub

        View view=arg1;
        view=LayoutInflater.from(context).inflate(R.layout.list7, null);

        TextView tv1=(TextView)view.findViewById(R.id.tV1);
        TextView tv2=(TextView)view.findViewById(R.id.tV2);
        btnView=(Button)findViewById(R.id.btnView);
        box=(CheckBox)findViewById(R.id.cB);

        tv1.setText(altextView1.get(arg0));
        tv2.setText(altextView2.get(arg0));


        return view;
    }

}

推荐答案

1. 将复选框对象设置为行视图的标签，该行视图可能是适配器的getView()方法中的"convertView".

1. Set checkbox object as tag to your row view that might be your 'convertView' in getView() method of your adapter.

在行视图上点击侦听器.

Write on click listener on your row view.

在该单击侦听器中，从onClick方法中作为参数的视图中行视图getTag并将其强制转换为复选框，然后对该复选框对象设置Checked为true.

Inside that click-listener to row view getTag from view that's parameter in onClick method and cast it to checkbox and then setChecked to true for that checkbox object.

代码可能看起来像这样

        convertView.setTag(yourCheckBoxObject);
        convertView.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                CheckBox cb = (CheckBox) v.getTag();
                cb.setChecked(true);
            }
        });

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您需要按照此线程来学习它..只需阅读整个线程并尝试理解然后实施..这是您可以获得的最佳帮助. 在检查通过列表视图动态生成的复选框

这篇关于项目单击时如何检查ListView的复选框?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！