"选中一个单选按钮取消选中所有其他"不起作用
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12-12-2019 - |
题
我正在开发一个Android3.1平板电脑应用程序,我需要以编程方式创建一些单选按钮:
RadioGroup radGrp = new RadioGroup(mActivity);
params.weight = 0.2f;
radGrp.setLayoutParams(params);
radGrp.setOrientation(RadioGroup.HORIZONTAL);
String tag = Long.toString(req.getRequirementId()) + "_" +
getString(R.string.yes);
RadioButton radioBtnYES = new RadioButton(mActivity);
radioBtnYES.setText(getString(R.string.yes));
radioBtnYES.setTag(tag);
radioBtnYES.setChecked(confValue);
radioBtnYES.setOnClickListener(radioListener);
radGrp.addView(radioBtnYES);
tag = Long.toString(req.getRequirementId()) + "_" +
getString(R.string.no);
RadioButton radioBtnNO = new RadioButton(mActivity);
radioBtnNO.setText(getString(R.string.no));
radioBtnNO.setTag(tag);
radioBtnNO.setChecked(!confValue);
radioBtnNO.setOnClickListener(radioListener);
radGrp.addView(radioBtnNO);
radGrp.setOnCheckedChangeListener(checkedChangedListener);
requirementLayout.addView(radGrp);
我的问题是,当我点击一个未选中的单选按钮时,同一个单选组上的另一个仍然被选中。
这是 radioListener
密码:
private RadioButton.OnClickListener radioListener =
new RadioButton.OnClickListener()
{
@Override
public void onClick(View v)
{
String tag = v.getTag().toString();
String[] parts = tag.split("_");
if ((parts != null) && (parts.length == 2))
{
boolean value = (parts[1].equals(getString(R.string.yes)));
Long id = Long.valueOf(parts[0]);
requirementsState.put(id, value);
}
}
};
这是 checkedChangedListener
密码:
private RadioGroup.OnCheckedChangeListener checkedChangedListener =
new OnCheckedChangeListener()
{
@Override
public void onCheckedChanged(RadioGroup group, int checkedId)
{
RadioButton rb = (RadioButton)
mActivity.findViewById(checkedId);
group.setOnCheckedChangeListener(null);
group.clearCheck();
rb.setChecked(true);
group.setOnCheckedChangeListener(checkedChangedListener);
}
};
我做错了什么?
解决方案
我找到了答案:**我需要设置检查单选按钮后,所有的单选按钮添加到单选组。
这是我的工作代码:
RadioGroup radGrp = new RadioGroup(mActivity);
params.weight = 0.2f;
radGrp.setLayoutParams(params);
radGrp.setOrientation(RadioGroup.HORIZONTAL);
String tag = Long.toString(req.getRequirementId()) + "_" +
getString(R.string.yes);
RadioButton radioBtnYES = new RadioButton(mActivity);
radioBtnYES.setText(getString(R.string.yes));
radioBtnYES.setTag(tag);
radioBtnYES.setOnClickListener(radioListener);
radGrp.addView(radioBtnYES);
tag = Long.toString(req.getRequirementId()) + "_" +
getString(R.string.no);
RadioButton radioBtnNO = new RadioButton(mActivity);
radioBtnNO.setText(getString(R.string.no));
radioBtnNO.setTag(tag);
radioBtnNO.setOnClickListener(radioListener);
radGrp.addView(radioBtnNO);
我在单选组中添加了两个单选按钮,然后:
if (confValue)
radioBtnYES.setChecked(true);
else
radioBtnNO.setChecked(true);
requirementLayout.addView(radGrp);
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