如何获得当前OnClick行的索引?

时间:2018-11-05 21:04:03

标签: java android android-studio tablelayout

基本上,我一直在尝试获取我单击的行的索引号,这是一个代码生成的Table,因此我无法将ID放入Xml,而且我不确定是否将SetTag放在哪里我在一些问题中看到的。也许有一种更简单的方法。 (OnClick函数正在我创建的TableLayout的每个TableRow内使用TextView) 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);
    }
};

这是生成表格的代码:

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);
            }


        }
    }

您不断看到的数据是一个包含五个元素的数组:id,发票编号,产品名称,产品代码和价格。我真的需要我在这里待了两天的帮助:(

1 个答案:

答案 0 :(得分:1)

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

loadData()内部,您可以在其中分配点击侦听器:

tv2.setOnClickListener(myAddHandler);

您可以将tv2的标签设置为具有索引:

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

现在,在点击侦听器内部,您可以使用getTag()检索索引:

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