Question

大家好日子。有人可以告诉我如何从0检索数据到=COUNTIFS(B10:B152,"Installs",D10:N152,"Done")？我提到了Android::Data are not retrieving to EditText field through Database，但它对我不起作用..

DisplayData.java

SQLite

UpdateDetails.java

editText

Force.java

private void BuildTable(String names,String date1)
    {
        final String name = names;
        final String date=date1;
        sqlcon.open();
        Cursor c = sqlcon.readEntry(name);

        int rows = c.getCount();
        int cols = c.getColumnCount();

        c.moveToFirst();

        TableRow rowDayLabels=new TableRow(this);
        TextView weather=new TextView(this);
        weather.setText("Weather");
        weather.setTypeface(Typeface.SERIF, Typeface.BOLD);

        TextView dater=new TextView(this);
        dater.setText("Date");
        dater.setTypeface(Typeface.SERIF, Typeface.BOLD);

        TextView status=new TextView(this);
        status.setText("Status");
        status.setTypeface(Typeface.SERIF, Typeface.BOLD);

        TextView timeIn=new TextView(this);
        timeIn.setText("Time In");
        timeIn.setTypeface(Typeface.SERIF, Typeface.BOLD);

        TextView timeOut=new TextView(this);
        timeOut.setText("Time Out");
        timeOut.setTypeface(Typeface.SERIF, Typeface.BOLD);

        rowDayLabels.addView(weather);
        rowDayLabels.addView(dater);
        rowDayLabels.addView(status);
        rowDayLabels.addView(timeIn);
        rowDayLabels.addView(timeOut);
        table_layout.addView(rowDayLabels);


        // outer for loop



        for (int i = 0; i < rows; i++) {

            TableRow row = new TableRow(this);
            row.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
                    ViewGroup.LayoutParams.WRAP_CONTENT));

            // inner for loop
            for (int j = 0; j < cols; j++) {

                TextView tv = new TextView(this);
                tv.setLayoutParams(new TableRow.LayoutParams(
                        ViewGroup.LayoutParams.WRAP_CONTENT,
                        ViewGroup.LayoutParams.WRAP_CONTENT
                ));
               // tv.setBackgroundResource(R.drawable.cell_shape);
                tv.setGravity(Gravity.CENTER);
                tv.setTextSize(18);
                tv.setPadding(0, 5, 0, 5);

                tv.setText(c.getString(j));

                row.addView(tv);
                row.setBackgroundColor(Color.GREEN);

                row.setOnClickListener(new View.OnClickListener() {

                    public void onClick(View v) {
                        Intent intent = new Intent(DisplayData.this, UpdatePage.class);
                        intent.putExtra("name", name);
                        intent.putExtra("date",date);
                        startActivity(intent);
                    }
                });

            }

            c.moveToNext();

            table_layout.addView(row);


        }
        sqlcon.close();
    }

        }

我错过了什么吗？请告诉我！任何建议都会很棒。感谢

Answer 1

如果您希望光标中只返回一行，则在执行操作之前不应立即调用moveTofirst和moveToNext。您将通过立即调用这些函数移动到游标中的第二行。我的猜测是你的光标只有一行而你的代码在while循环中没有被执行。错误可能在这里

if (c != null) {
   c.moveToFirst();
   while (c.moveToNext()) {
       Info I = new Info();
   }
}

你应该做这样的事情

if (c != null) {
   while (c.moveToNext()) {
       Info I = new Info();
   }
}

如何将检索到的数据传递给editText？

1 个答案: