0

我有一个ListViewwithButton的。我想隐藏当我单击Button第二个项目时可见的项目。

在此处输入图像描述

如果我单击按钮“1”，我想隐藏蓝色的“布局”。如果单击是同一个项目，我可以管理布局，但是当我单击另一个项目的按钮时，布局仍然可见。如何设置这些项目的可见性？

这是可能的代码。我的列表适配器

public View getView(int position, View convertView, ViewGroup parent) {
    final String item = items.get(position);
    View v = null;
    if (convertView != null)
        v = convertView;
    else
        v = inflater.inflate(R.layout.item, parent, false);
    TextView itemTV = (TextView) v.findViewById(R.id.item);
    itemTV.setText(item);
final ImageView number1 = (ImageView) v.findViewById(R.id.number1);

    final ImageView number2 = (ImageView) v.findViewById(R.id.number2);

    final ImageView button1 = (ImageView) v.findViewById(R.id.button1);

    final ImageView button2 = (ImageView) v.findViewById(R.id.button2);

    final RelativeLayout blue = (RelativeLayout) v.findViewById(R.id.blue);
    final RelativeLayout green = (RelativeLayout) v
            .findViewById(R.id.green);
    blue.setVisibility(RelativeLayout.GONE);
    green.setVisibility(RelativeLayout.GONE);



    button1.setOnClickListener(new OnClickListener() {
        public void onClick(View v) {

            if (on == 0) //show hide ---int on=0;
            {

                blue.setVisibility(RelativeLayout.VISIBLE);
                green.setVisibility(RelativeLayout.GONE);
                on = 1;

                Toast.makeText(context, "ImageButton clicked" + item,
                        Toast.LENGTH_SHORT).show();
                number1.setOnClickListener(new View.OnClickListener() {

                    public void onClick(View v) {
                        Toast.makeText(context,
                                "CLICK" + item,
                                Toast.LENGTH_SHORT).show();

                    }
                });

                number2.setOnClickListener(new View.OnClickListener() {

                    public void onClick(View v) {
                        Toast.makeText(context,
                                "ClICK" + item,
                                Toast.LENGTH_SHORT).show();

                    }
                });

            }// on equals 0
            else {
                on = 0;
                blue.setVisibility(RelativeLayout.GONE);
                green.setVisibility(RelativeLayout.GONE);
            }

        }
    });
    button2.setOnClickListener(new OnClickListener() {
        public void onClick(View v) {

            blue.setVisibility(RelativeLayout.GONE);
            green.setVisibility(RelativeLayout.VISIBLE);
            Toast.makeText(context, "CLICK" + item,
                    Toast.LENGTH_SHORT).show();
            number2.setOnClickListener(new View.OnClickListener() {

                public void onClick(View v) {
                    Toast.makeText(context, "CLICK" + item,
                            Toast.LENGTH_SHORT).show();

                }
            });

        }
    });

    return v;
}

我的活动

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.list);
    ListView lv = (ListView) findViewById( R.id.list );

    lv.setOnItemClickListener(
            new OnItemClickListener() {
                public void onItemClick(AdapterView<?> arg0,
                        android.view.View arg1, int arg2, long arg3) {



                    Toast.makeText( ListImageButton.this,
                            "List item clicked",
                            Toast.LENGTH_SHORT).show();
                }
        });
    ArrayList<String> items = new ArrayList<String>();
    items.add( "item1");
    items.add( "item2");
    items.add( "item3");
    ListAdapter adapter = new ListAdapter( this, items);
    lv.setAdapter( adapter );
}
4

2 回答 2

1

我假设您想根据从一行中单击的数字按钮在单行上显示蓝色或绿色部分。尝试这样的事情：

// two fields in the adapter class
private int mBlueFlag = -1;
private int mGreenFlag = -1;


public View getView(int position, View convertView, ViewGroup parent) {
    final String item = items.get(position);
    View v = null;
    if (convertView != null) {
        v = convertView;
    } else {
        v = inflater.inflate(R.layout.item, parent, false);
    } 
    TextView itemTV = (TextView) v.findViewById(R.id.item);
    itemTV.setText(item);
    final ImageView number1 = (ImageView) v.findViewById(R.id.number1);
    final ImageView number2 = (ImageView) v.findViewById(R.id.number2);
    // I assume this are the buttons with 1 and 2 which show the green/blue row part
    final ImageView button1 = (ImageView) v.findViewById(R.id.button1);
    final ImageView button2 = (ImageView) v.findViewById(R.id.button2);
    final RelativeLayout blue = (RelativeLayout) v.findViewById(R.id.blue);
    final RelativeLayout green = (RelativeLayout) v.findViewById(R.id.green);
    if (mBlueFlag != -1 && mBlueFlag == position) {
    blue.setVisibility(View.VISIBLE);
    } else {
    blue.setVisibility(View.GONE);
    }
    if (mGreenFlag != -1 && mGreenFlag == position) {
    green.setVisibility(View.VISIBLE);
    } else {
        green.setVisibility(View.GONE);
    }

    button1.setOnClickListener(new OnClickListener() {
        public void onClick(View v) {          
             mGreenFlag = position;
             mBlueFlag = -1;
         // set the other OnCLickListener
         notifyDataSetChanged();
        }
    });
    button2.setOnClickListener(new OnClickListener() {
        public void onClick(View v) {
             mBlueFlag = position;
         // set the other OnClickListeners
         notifyDataSetChanged();
        }
    });
    return v;
}
于 2013-02-06T19:52:54.780 回答
0

您需要更改基于此列表的信息，并调用 notifityDataSetChanged()，它将重新创建列表。

于 2013-02-02T14:37:38.053 回答