Question

有三个单选按钮： 1. NID 2.护照3.驾驶执照

之后会有一个编辑文本框，用户可以在其中编写已选择的ID。如果用户选择NID，NID-将显示在editText框中，该框不可移动，则用户可以在editText框中写入12345678，它将保存在数据库中，如NID-12345678。这是我的代码：

单选按钮操作：

 <root>
   <item>
     <country>Brobdingnag</country>
     <state>State of Fiction</state>
   </item>
   <item>
     <test></test>
     <country>Lilliput</country>
   </item>
 </root>

}

数据库部分：

public void RadioButtonClicked(View view) {


String selectedID = "";
boolean checked = ((RadioButton) view).isChecked();

switch (view.getId()) {
    case R.id.uNid:
        if (checked)
            selectedID = "NID";
        Toast.makeText(Registration.this, "NID", Toast.LENGTH_LONG).show();
       // etID.setText("NID");
        break;
    case R.id.uPassport:
        if (checked)
            selectedID = "Passport";
        Toast.makeText(Registration.this, "Passport", Toast.LENGTH_LONG).show();
       // etID.setText("Passport");
        break;

    case R.id.uLicense:
        if (checked)
            selectedID = "Driving License";
        Toast.makeText(Registration.this, "Driving License", Toast.LENGTH_LONG).show();
        // etID.setText("Driving License");
        break;
}

Answer 1

您需要使用EditText.seteditable（false）;属性。如果要限制用户在editText中编写内容。只有editText的文本可以从我们的java文件中设置。

Answer 2

我解决了这个问题。这是我的单选按钮代码：

 public void RadioButtonClicked(View view) {



    String selectedID = "";

    boolean checked = ((RadioButton) view).isChecked();

    switch (view.getId()) {
        case R.id.uNid:
            if (checked)
                selectedID = "NID";
            Toast.makeText(Registration.this, "NID", Toast.LENGTH_LONG).show();
            etID.setText("n ");
            Selection.setSelection(etID.getText(), etID.getText().length());
            etID.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) {
                    if (!s.toString().startsWith("n ")) {
                        etID.setText("n ");
                        Selection.setSelection(etID.getText(), etID
                                .getText().length());

                    }

                }

            });
           // etID.setText("NID");
            break;
        case R.id.uPassport:
            if (checked)
                selectedID = "Passport";
            Toast.makeText(Registration.this, "Passport", Toast.LENGTH_LONG).show();
           // etID.setText("Passport");
            etID.setText("p ");
            Selection.setSelection(etID.getText(), etID.getText().length());
            etID.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) {
                    if (!s.toString().startsWith("p ")) {
                        etID.setText("p ");
                        Selection.setSelection(etID.getText(), etID
                                .getText().length());

                    }

                }

            });
            break;

        case R.id.uLicense:
            if (checked)
                selectedID = "Driving License";
            Toast.makeText(Registration.this, "Driving License", Toast.LENGTH_LONG).show();
            // etID.setText("Driving License");
            etID.setText("d ");
            Selection.setSelection(etID.getText(), etID.getText().length());
            etID.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) {
                    if (!s.toString().startsWith("d ")) {
                        etID.setText("d ");
                        Selection.setSelection(etID.getText(), etID
                                .getText().length());

                    }

                }

            });
            break;
    }
}

如何在editText框中添加常量文本？

2 个答案: