问题
I didn't see any post similar to my problem. I have a radiogroup
which has two buttons as follows,
<RadioGroup
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<RadioButton
android:id="@+id/basic"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
<RadioButton
android:id="@+id/advanced"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
</RadioGroup>
In my application,Sometimes I need one more button which I have added dynamically like,
button=new AppCompatRadioButton(Activity.this);
button.setId(R.id.my_custom_id);
radiogroup.addView(button);
Oncheckedchangelistener code for that radiogroup,
(radioGroup).setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
if(checkedId== R.id.basic) {
button.setChecked(false);
//my code
}
else if(checkedId== R.id.advanced) {
button.setChecked(false);
//my code
}
else {
//it is newly added button's part
}
}
});
The problem is, when the newly added button is checked, it is not unchecked when I am clicking other button. I tried to solve this in
OnCheckedChangeListener
by settingbutton.setChecked(false);
when other buttons were checked. But it doesn't work. I don't know which makes problem in that.
Can Anyone help me.Thanks!
回答1:
Use your Activity class context while initializing the RadioButton.
Instead of Activity.this
use MainActivity.this
Here is the Full working code..in your activity:
RadioGroup group = (RadioGroup) findViewById(R.id.group);
group.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
Log.d("chk", "id" + checkedId);
if (checkedId == R.id.basic) {
//some code
Toast.makeText(MainActivity.this, "First", Toast.LENGTH_SHORT).show();
} else if (checkedId == R.id.advanced) {
//some code
Toast.makeText(MainActivity.this, "Second", Toast.LENGTH_SHORT).show();
} else if (checkedId == R.id.my_custom_id) {
//some code
Toast.makeText(MainActivity.this, "Third", Toast.LENGTH_SHORT).show();
}
}
});
RadioButton button = new RadioButton(this);
button.setId(R.id.my_custom_id);
button.setText("Dynamic Button");
group.addView(button);
group.clearCheck();
In your layout Xml:
<RadioGroup
android:id = "@+id/group"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<RadioButton
android:id="@+id/basic"
android:layout_width="wrap_content"
android:text="Basic"
android:layout_height="wrap_content"
/>
<RadioButton
android:id="@+id/advanced"
android:layout_width="wrap_content"
android:text="Advanced"
android:layout_height="wrap_content"
/>
</RadioGroup>
回答2:
Instead of making radio button programmatically through java code, do this, i.e. put that radio button in xml file, but initially set android:visibility to gone, this will make sure your last radio button is not visible :
<RadioGroup
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<RadioButton
android:id="@+id/basic"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
<RadioButton
android:id="@+id/advanced"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
<RadioButton
android:id="@+id/new_radio"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility:"gone"
/>
</RadioGroup>
and, when you need to use your radio button, then in java class, make your radio button visible again, like this:
button.setVisibility(View.VISIBLE);
and then, you are good to go with setOnCheckedChangeListener :
radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId)
{
//your code
});
来源:https://stackoverflow.com/questions/47471915/issue-in-radiogroup-while-adding-radiobuttons-dynamically