Question

我正在以编程方式创建动态listview，点击特定视图我打开日期对话框。并在特定视图上设置日期值，现在我有保存按钮，点击保存按钮我想要列表行中每个视图的值。

这是我的代码：

 private void createlist(ArrayList<publicationcheckeddetail> pb) {
        try {
            listContainer.removeAllViews();
            final LayoutInflater inflater = (LayoutInflater)      getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            LinearLayout mainlayout = new LinearLayout(MainActivity.this);
            LinearLayout.LayoutParams mainlayoutparameter = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
            mainlayout.setLayoutParams(mainlayoutparameter);
            mainlayout.setOrientation(LinearLayout.VERTICAL);
            for (int i = 0; i < pb.size(); i++) {
                final ViewGroup viewgroup = (ViewGroup) inflater.inflate(R.layout.row_view, null);
                final LinearLayout sublayout = new LinearLayout(MainActivity.this);
                LinearLayout.LayoutParams sublayoutparameter = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
                sublayout.setLayoutParams(sublayoutparameter);
                sublayout.setOrientation(LinearLayout.HORIZONTAL);
                sublayout.setGravity(Gravity.CENTER);
                viewHolder = new ListViewHolder();
                viewHolder.addImage = (ImageView) viewgroup.findViewById(R.id.addImage);
                viewHolder.addchildimage = (ImageView) viewgroup.findViewById(R.id.childimage);
                viewHolder.date = (TextView) viewgroup.findViewById(R.id.txtDate);
                viewHolder.color = (TextView) viewgroup.findViewById(R.id.childdata);
                Bitmap bitmap = BitmapFactory.decodeByteArray(pb.get(i).getPub_image(), 0, pb.get(i).getPub_image().length);
                viewHolder.addImage.setImageBitmap(bitmap);
                viewHoldersCollection.add(viewHolder);
                sublayout.addView(viewgroup);
                mainlayout.addView(sublayout);
                viewHolder.date.setOnClickListener(new View.OnClickListener() {
                    @Override

                    public void onClick(View v) {
                        int index = ((ViewGroup) sublayout.getParent()).indexOfChild(sublayout);
                   v1 = ((ViewGroup) sublayout.getParent()).getChildAt(index).findViewById(R.id.txtDate);
                        openDateDialogtoSelectDate(v1);

                    }
                });
                viewHolder.color.setOnClickListener(new View.OnClickListener() {
                    @Override

                    public void onClick(View v) {
                        int index = ((ViewGroup) sublayout.getParent()).indexOfChild(sublayout);
                        colorview = ((ViewGroup) sublayout.getParent()).getChildAt(index).findViewById(R.id.childdata);
                        strcolor = selectcolor(colorview);
                     }
                });

               }

            listContainer.addView(mainlayout);
            listContainer.requestLayout();


        } catch (Exception e) {
            e.printStackTrace();
        }
    }




private void openDateDialogtoSelectDate(View v1) {
        try {
            Calendar c = Calendar.getInstance();
            dialog = new DatePickerDialog(this, datePickerListener, year, month, day);
            dialog.getDatePicker().setMinDate(System.currentTimeMillis() - 1000);
            dialog.show();

        } catch (Exception e) {
            e.printStackTrace();

        }
    }

    public DatePickerDialog.OnDateSetListener datePickerListener = new DatePickerDialog.OnDateSetListener() {
        public void onDateSet(DatePicker view, int selectedYear,
                              int selectedMonth, int selectedDay) {
            year = selectedYear;
            month = selectedMonth;
            day = selectedDay;
            tv = (TextView) v1.findViewById(R.id.txtDate);

            tv.setText(new StringBuilder().append(day).append("-")
                    .append((month + 1)).append("-").append(year)
                    .append(" "));
}
}

Answer 1

简单地说，遍历LinearLayout（mainlayout）

     int childCount=mainlayout.getChildCount();

     for(int i=0;i<childCount;i++)
     {
           View v=mainlayout.getChildAt(i);
           TextView txtDate=(TextView)v.findViewById(R.id.txtDate); //get the date value
           String strDate= txtDate.getText().toString();


           // do other operations
     }

Answer 2

您可能想尝试使用CustomListView。这些并不难以使用，并且它们有一个很好的方法可以覆盖，称为getView（）。

    @Override
public View getView(final int position, View convertView, ViewGroup parent) {
    LayoutInflater inflater = (LayoutInflater) context
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    final View rowView = inflater.inflate(R.layout.settingsrowlayout, parent, false);

    Button button = (Button)rowView.findViewById(R.id.btnChange);

    //What you want to happen when the button in the generated ListView using a CustomListView to do.
 }

我希望这是有道理的，自定义列表视图非常有用，是一个很好的工具

在按钮上单击从每个视图获取数据

2 个答案: