如何获取当前 OnClick 行的索引？

Question

基本上我一直在尝试获取我点击的行的索引号，它是生成的代码 Table 所以我不能将 Id 放在 Xml 中，我我不太确定将我在某些问题中看到的 SetTag 放在哪里。也许有更简单的方法。（OnClick 函数与我创建的 Table 布局的每个 Table 行中的 TextView 一起使用）这是试图做到这一点的代码：

View.OnClickListener myAddHandler = new View.OnClickListener() {
    public void onClick(View v) {
        TableRow row = (TableRow) v.getParent();
        int index=mTableLayout.indexOfChild(row);
        addedcode = data[index].productCode;
        addedcant = data[index].invoiceNumber;
        Intent switchIntent = new Intent(AddManager.this,NavManager.class);
        startActivity(switchIntent);
    }
};

这是生成 Table 的代码：

public void loadData(InvoiceData[] data) {
        int leftRowMargin=0;
        int topRowMargin=0;
        int rightRowMargin=0;
        int bottomRowMargin = 0;
        int textSize = 0, smallTextSize =0, mediumTextSize = 0;

        textSize = (int) getResources().getDimension(R.dimen.font_size_verysmall);
        smallTextSize = (int) getResources().getDimension(R.dimen.font_size_small);
        mediumTextSize = (int) getResources().getDimension(R.dimen.font_size_medium);

        DecimalFormat decimalFormat = new DecimalFormat("0.00");

        int rows = data.length;
        getSupportActionBar().setTitle("Productos (" + String.valueOf(rows) + ")");
        TextView textSpacer = null;

        mTableLayout.removeAllViews();

        // -1 means heading row
        for(int i = -1; i < rows; i ++) {
            InvoiceData row = null;
            if (i > -1)
                row = data[i];
            else {
                textSpacer = new TextView(this);
                textSpacer.setText("");

            }
            // data columns
            final TextView tv = new TextView(this);
            tv.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT,
                    TableRow.LayoutParams.WRAP_CONTENT));

            tv.setGravity(Gravity.LEFT);

            tv.setPadding(5, 15, 0, 15);
            if (i == -1) {
                tv.setText("Cant");
                tv.setBackgroundColor(Color.parseColor("#f0f0f0"));
                tv.setTextSize(TypedValue.COMPLEX_UNIT_PX, smallTextSize);
            } else {
                tv.setBackgroundColor(Color.parseColor("#f8f8f8"));
                tv.setText(String.valueOf(row.invoiceNumber));
                tv.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSize);
            }

            final TextView tv2 = new TextView(this);
            if (i == -1) {
                tv2.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT,
                        TableRow.LayoutParams.WRAP_CONTENT));
                tv2.setTextSize(TypedValue.COMPLEX_UNIT_PX, smallTextSize);
            } else {
                tv2.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT,
                        TableRow.LayoutParams.MATCH_PARENT));
                tv2.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSize);
            }

            tv2.setGravity(Gravity.LEFT
            );

            tv2.setPadding(5, 15, 0, 15);
            if (i == -1) {
                tv2.setText("Agregar");
                tv2.setBackgroundColor(Color.parseColor("#f7f7f7"));
            }else {
                tv2.setBackgroundColor(Color.parseColor("#ffffff"));
                tv2.setTextColor(Color.parseColor("#000000"));
                tv2.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSize);
                tv2.setCompoundDrawablesWithIntrinsicBounds(0, 0,0,R.drawable.cart);
                tv2.setOnClickListener(myAddHandler);
            }

            final LinearLayout layCustomer = new LinearLayout(this);
            layCustomer.setOrientation(LinearLayout.VERTICAL);
            layCustomer.setPadding(0, 10, 0, 10);
            layCustomer.setBackgroundColor(Color.parseColor("#f8f8f8"));

            final TextView tv3 = new TextView(this);
            if (i == -1) {
                tv3.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT,
                        TableRow.LayoutParams.MATCH_PARENT));
                tv3.setPadding(5, 5, 0, 5);
                tv3.setTextSize(TypedValue.COMPLEX_UNIT_PX, smallTextSize);
            } else {
                tv3.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT,
                        TableRow.LayoutParams.MATCH_PARENT));
                tv3.setPadding(5, 0, 0, 5);
                tv3.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSize);
            }

            tv3.setGravity(Gravity.TOP);


            if (i == -1) {
                tv3.setText("Productos");
                tv3.setBackgroundColor(Color.parseColor("#f0f0f0"));
            } else {
                tv3.setBackgroundColor(Color.parseColor("#f8f8f8"));
                tv3.setTextColor(Color.parseColor("#000000"));
                tv3.setTextSize(TypedValue.COMPLEX_UNIT_PX, smallTextSize);
                tv3.setText(row.productName);
            }
            layCustomer.addView(tv3);


            if (i > -1) {
                final TextView tv3b = new TextView(this);
                tv3b.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT,
                        TableRow.LayoutParams.WRAP_CONTENT));

                tv3b.setGravity(Gravity.RIGHT);
                tv3b.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSize);
                tv3b.setPadding(5, 1, 0, 5);
                tv3b.setTextColor(Color.parseColor("#aaaaaa"));
                tv3b.setBackgroundColor(Color.parseColor("#f8f8f8"));
                tv3b.setText(row.productCode);
                layCustomer.addView(tv3b);
            }

            final LinearLayout layAmounts = new LinearLayout(this);
            layAmounts.setOrientation(LinearLayout.VERTICAL);
            layAmounts.setGravity(Gravity.LEFT);
            layAmounts.setPadding(0, 10, 0, 10);
            layAmounts.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT,
                    TableRow.LayoutParams.MATCH_PARENT));



            final TextView tv4 = new TextView(this);
            if (i == -1) {
                tv4.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT,
                        TableRow.LayoutParams.MATCH_PARENT));
                tv4.setPadding(5, 5, 1, 5);
                layAmounts.setBackgroundColor(Color.parseColor("#f7f7f7"));
            } else {
                tv4.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT,
                        TableRow.LayoutParams.WRAP_CONTENT));
                tv4.setPadding(5, 0, 1, 5);
                layAmounts.setBackgroundColor(Color.parseColor("#ffffff"));
            }

            tv4.setGravity(Gravity.LEFT);

            if (i == -1) {
                tv4.setText("Precio");
                tv4.setBackgroundColor(Color.parseColor("#f7f7f7"));
                tv4.setTextSize(TypedValue.COMPLEX_UNIT_PX, smallTextSize);
            } else {
                tv4.setBackgroundColor(Color.parseColor("#ffffff"));
                tv4.setTextColor(Color.parseColor("#000000"));
                tv4.setText(row.precio);
                tv4.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSize);
            }

            layAmounts.addView(tv4);

            if (i > -1) {
                final TextView tv4b = new TextView(this);
                tv4b.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT,
                        TableRow.LayoutParams.WRAP_CONTENT));

                tv4b.setGravity(Gravity.LEFT);
                tv4b.setTextSize(TypedValue.COMPLEX_UNIT_PX, textSize);
                tv4b.setPadding(2, 2, 1, 5);
                tv4b.setTextColor(Color.parseColor("#00afff"));
                tv4b.setBackgroundColor(Color.parseColor("#ffffff"));
            }


            // add table row
            final TableRow tr = new TableRow(this);
            TableLayout.LayoutParams trParams = new TableLayout.LayoutParams(TableLayout.LayoutParams.MATCH_PARENT,
                    TableLayout.LayoutParams.WRAP_CONTENT);
            trParams.setMargins(leftRowMargin, topRowMargin, rightRowMargin, bottomRowMargin);
            tr.setPadding(0,0,0,0);
            tr.setLayoutParams(trParams);

            int p=0;
            tr.setTag(p);
            tr.addView(tv);
            tr.addView(layCustomer);
            tr.addView(layAmounts);
            tr.addView(tv2);
            p++;

         mTableLayout.addView(tr, trParams);

            if (i > -1) {

                final TableRow trSep = new TableRow(this);
                TableLayout.LayoutParams trParamsSep = new TableLayout.LayoutParams(TableLayout.LayoutParams.MATCH_PARENT,
                        TableLayout.LayoutParams.WRAP_CONTENT);
                trParamsSep.setMargins(leftRowMargin, topRowMargin, rightRowMargin, bottomRowMargin);

                trSep.setLayoutParams(trParamsSep);
                TextView tvSep = new TextView(this);
                TableRow.LayoutParams tvSepLay = new TableRow.LayoutParams(TableRow.LayoutParams.MATCH_PARENT,
                        TableRow.LayoutParams.WRAP_CONTENT);
                tvSepLay.span = 4;
                tvSep.setLayoutParams(tvSepLay);
                tvSep.setBackgroundColor(Color.parseColor("#d9d9d9"));
                tvSep.setHeight(1);

                trSep.addView(tvSep);
                mTableLayout.addView(trSep, trParamsSep);
            }


        }
    }

您经常看到的数据是一个包含五个元素的数组：id、invoicenumber、productname、productcode 和 price。我真的需要帮助我已经被困在这里两天了:(

Answer 1

传递给处理程序的 onClick() 方法的 View v 参数是被单击的视图。您可以使用这个事实，结合 setTag() 和 getTag() 来存储一些额外的信息。

在 loadData() 内部，您在其中分配点击侦听器：

tv2.setOnClickListener(myAddHandler);

你可以设置tv2的标签让你的索引：

tv2.setTag(i);
tv2.setOnClickListener(myAddHandler);

现在，在您的点击侦听器中，您可以使用 getTag():

检索索引

public void onClick(View v) {
    int index = (int) v.getTag();
    // ...
}

如何获取当前 OnClick 行的索引？

How can i get the index of my current OnClick Row?

java

android

android-studio

tablelayout