在选中单选按钮的情况下禁用 EditText

Question

这段代码不工作，怎么了？在选中radiobutton2 之前，我不想允许用户输入

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);
            }

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


        }
    });

Answer 1

t4.setEnable(rb2.isChecked());

rb2.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                t4.setEnable(isChecked);
            }
        });

Answer 2

你能试试下面给出的代码吗？

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)
        {
            changeEditTextAvailability(t4, false);
        }

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


    }
});

private void changeEditTextAvailability(EditText editText, boolean status) {
    editText.setFocusable(status);
    editText.setEnabled(status);
    editText.setCursorVisible(status);
    editText.setFocusableInTouchMode(status)
}

干杯，

Renc

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);
}

试试这个代码

Answer 4

问题是您在初始化视图后还没有初始化验证 试试这个onCreate()

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) 和 setEnabled(false)。如下所示更改您的代码：

    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);

            }


        }
    });

Answer 6

你可以试试这个

检查“单选按钮”是否被选中： 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);
}