Question

尝试将edittext和textview小部件动态创建到程序中。它工作正常。现在我想要使用相应的edittext值访问textvalue。怎么做？

这是我尝试过的。

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_callreport);

    dcname = ProductdetailsEnd.doctor;
    resultArr1 = ProductdetailsEnd.resultArr;

    callreportbtn = (Button) findViewById(R.id.callreportbtn);

    arraysize = resultArr1.length;
    TableLayout tb = (TableLayout) findViewById(R.id.tablelayout);

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

        res = resultArr1[i];
        TableRow tr = new TableRow(this);
        TableRow.LayoutParams pl = new TableRow.LayoutParams(
                TableRow.LayoutParams.MATCH_PARENT);
        tr.setLayoutParams(pl);

        tr.setWeightSum(1.0f);
        product = new TextView(this);
        product.setLayoutParams(new TableRow.LayoutParams(
                LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT, 0.7f));
        product.setId(i);

        qty = new EditText(this);
        qty.setLayoutParams(new TableRow.LayoutParams(
                LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT, 0.3f));
        qty.setId(i);

        qty.setWidth(50);
        product.setText(res);
        tr.addView(product);
        tr.addView(qty);

        tb.addView(tr, i);

        Log.d("Call Report name : ", "" + dcname);
        Log.d("Call Report prod :", "" + res);
    }

    Log.d("res length : ", "" + arraysize);

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

        String product1 = resultArr1[i];

        String qty1 = qty.getText().toString();

        Log.d("products &&: ", "" + product1 + ":" + qty1);
    }

    callreportbtn.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            Toast.makeText(getApplicationContext(), "Hello",
                    Toast.LENGTH_LONG).show();
            for (int i = 0; i < arraysize; i++) {

                String product1 = resultArr1[i];

                String qty1 = qty.getText().toString();

                Log.d("products &&: ", "" + product1 + ":" + qty1);
            }

        }
    });

}

输入值后，当我说提交时，应显示textview值以及edittext值。

为了更方便，我添加了一个输出的快照。

第一张图片输入值

第二个图像在logcat中输出。

Answer 1

有很多方法可以做你想做的事。

将您的视图放在List对象中，并在提交时阅读列表。
实现TextWatcher接口，并在字符串值发生变化时记录它们。
为您的观看次数指定一个ID，然后通过Id。

第三个选项要求您仔细分配ID，因为我认为它们必须是唯一的。我认为，在许多情况下，第二个选项最好，因为您可能还想向用户提供一些反馈。

编辑：

TextWatcher是从TextView接收回调的接口。只需调用addTextChangedListener方法并提供TextWatcher实现。

aTextView.addTextChangedListener(new TextWatcher() {
        @Override
        public void onTextChanged(CharSequence s, int start, int before, int count) {

            // TODO Auto-generated method stub
        }

        @Override
        public void beforeTextChanged(CharSequence s, int start, int count, int after) {

            // TODO Auto-generated method stub
        }

        @Override
        public void afterTextChanged(Editable s) {

            // TODO Auto-generated method stub
        }
    });

Answer 2

最后我得到了答案。提到这篇文章 - Creation of EditText Dynamically and get their text from each of EditText

创建一个EditText数组，并在按钮onclick方法中访问它。这是我的代码及其工作原理。

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_callreport);

    dcname = ProductdetailsEnd.doctor;
    resultArr1 = ProductdetailsEnd.resultArr;

    callreportbtn = (Button) findViewById(R.id.callreportbtn);
    quantity = new ArrayList<EditText>();

    arraysize = resultArr1.length;
    TableLayout tb = (TableLayout) findViewById(R.id.tablelayout);

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

        res = resultArr1[i];
        TableRow tr = new TableRow(this);
        TableRow.LayoutParams pl = new TableRow.LayoutParams(
                TableRow.LayoutParams.MATCH_PARENT);
        tr.setLayoutParams(pl);

        tr.setWeightSum(1.0f);
        product = new TextView(this);
        product.setLayoutParams(new TableRow.LayoutParams(
                LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT, 0.7f));
        product.setId(i);

        qty = new EditText(this);
        qty.setLayoutParams(new TableRow.LayoutParams(
                LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT, 0.3f));
        //qty.setId(i);

        qty.setWidth(50);
        product.setText(res);
        tr.addView(product);
        tr.addView(qty);

        tb.addView(tr, i);

        quantity.add(qty);

        Log.d("Call Report name : ", "" + dcname);
        Log.d("Call Report prod :", "" + res);
    }

    Log.d("res length : ", "" + arraysize);
    Log.d("qty length : ", "" + qty.length());
    String[] items1 = new String[quantity.size()];
    for (int i = 0; i < arraysize; i++) {

        String product1 = resultArr1[i];

        items1[i] = quantity.get(i).getText().toString();


        Log.d("qty id ", "" +qty.toString());
        Log.d("products &&: ", "" + product1 + ":" + items1);
    }

    callreportbtn.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            Toast.makeText(getApplicationContext(), "Hello",
                    Toast.LENGTH_LONG).show();

            String[] items = new String[quantity.size()]; 
            for (int i = 0; i < arraysize; i++) {

                String product1 = resultArr1[i];

                 items[i] = quantity.get(i).getText().toString();

                Log.d("products &&: ", "" + product1 + ":" + items[i]);
            }

        }
    });

}

如何获取动态创建的edittext和文本值？

2 个答案: