Question

修复的简单问题（我希望）...虽然无法弄明白。当选中/选择另一个时，我需要一个单选按钮被取消选中或取消选中。

这是我的代码。现在应用程序工作正常，但当用户去更改选择时，第一个按钮不会清除：

Button convert = (Button) findViewById(R.id.btnConvert);
convert.setOnClickListener(new View.OnClickListener() {

    public void onClick(View v) {

        weightEntered=Double.parseDouble(weight.getText().toString());
        DecimalFormat tenth = new DecimalFormat("#.#");

        if (lbToKilo.isChecked()) {
            if (weightEntered <= 500) {
                convertedWeight = weightEntered / conversionRate;
                result.setText(tenth.format(convertedWeight) + " kilograms");
            } else {
                Toast.makeText(getApplicationContext(), "Pounds must be less than 500.", Toast.LENGTH_LONG).show();
            }
        }
        if (kiloToLb.isChecked()) {
            if (weightEntered <= 225) {
                convertedWeight = weightEntered * conversionRate;
                result.setText(tenth.format(convertedWeight) + " pounds");
            } else {
                Toast.makeText(getApplicationContext(), "Kilos must be less than 225.", Toast.LENGTH_LONG).show();
            }
        }
    }

});

Answer 1

您只需将您的RadioButton分组到RadioGroup 这就是获得一些mutually exclusive RadioButtons所需的一切。

供参考：http://developer.android.com/guide/topics/ui/controls/radiobutton.html

Radiobutton行为Android Studio

1 个答案: