Question

这段代码无效，有什么不对？在JTextfield被选中之前，我不想允许用户输入

radiobutton2

Answer 1

您可以尝试下面给出的代码吗？

DiscoveryEndpoint

干杯，

RENC

Answer 2

你可以试试这个

检查是否选中了“Radiobutton”： isChecked()

在Android中禁用EditText： setFocusable()

EditText t4 = (EditText)findViewById(R.id.editText3);

RadioButton  rb = (RadioButton) findViewById(R.id.radioButton1);
RadioButton rb2 = (RadioButton) findViewById(R.id.radioButton2);
RadioGroup  rg =(RadioGroup) findViewById(R.id.G1);

if (rb.isChecked()) {
   t4.setFocusable(true);
} else {
   t4.setFocusable(false);
}

if (rb2.isChecked()) {
   t4.setFocusable(false);
} else {
   t4.setFocusable(true);
}

Answer 3

    if (cbProhibitEditPW.isChecked()) { // disable editing password
       editTextPassword.setFocusable(false);
       editTextPassword.setFocusableInTouchMode(false); // user touches widget on phone with touch screen
       editTextPassword.setClickable(false); // user navigates with wheel and selects widget
} else { // enable editing of password
       editTextPassword.setFocusable(true);
       editTextPassword.setFocusableInTouchMode(true);
       editTextPassword.setClickable(true);
}

试试此代码

Answer 4

问题是您在初始化视图后尚未初始化验证在onCreate()

上试试这个

EditText t4 = (EditText)findViewById(R.id.editText3);

RadioButton  rb = (RadioButton) findViewById(R.id.radioButton1);
RadioButton rb2 = (RadioButton) findViewById(R.id.radioButton2);
RadioGroup  rg =(RadioGroup) findViewById(R.id.G1);

if (rb.isChecked()) {
   t4.setFocusable(true);
}

if (rb2.isChecked()) {
   t4.setFocusable(false);
}
rg.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(RadioGroup group, int checkedId) {

            if(checkedId==R.id.radioButton1)
            {
                t4.setEnabled(false);
            }

            if(checkedId==R.id.radioButton2)
            {
                t4.setEnabled(true);
            }


        }
    });

这将限制用户在屏幕启动时输入

Answer 5

解决方法是在EditText上调用setFocusable(false)以及setEnabled(false)。更改您的代码，如下所示：

    EditText t4 = (EditText)findViewById(R.id.editText3);

 RadioButton  rb = (RadioButton) findViewById(R.id.radioButton1);
 RadioButton rb2 = (RadioButton) findViewById(R.id.radioButton2);
 RadioGroup  rg =(RadioGroup) findViewById(R.id.G1);


    rg.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(RadioGroup group, int checkedId) {

            if(checkedId==R.id.radioButton1)
            {
                t4.setEnabled(false);
                t4.setFocusable(false);
            }

            if(checkedId==R.id.radioButton2)
            {
                t4.setEnabled(true);
                t4.setFocusable(true);

            }


        }
    });

选中单选按钮禁用EditText

6 个答案: