How to group RadioButton from different LinearLayouts?
android, android-linearlayout, radio-button, radio-group
Solution
It seems that the good people at Google/Android assume that when you use RadioButtons, you don't need the flexibility that comes with every other aspect of the Android UI/layout system. To put it simply: they don't want you to nest layouts and radio buttons. Sigh.
So you gotta work around the problem. That means you must implement radio buttons on your own.
This really isn't too hard. In your onCreate(), set your RadioButtons with their own onClick() so that when they are activated, they setChecked(true) and do the opposite for the other buttons. For example:
class FooActivity {
RadioButton m_one, m_two, m_three;
@Override
protected void onCreate(Bundle savedInstanceState) {
...
m_one = (RadioButton) findViewById(R.id.first_radio_button);
m_two = (RadioButton) findViewById(R.id.second_radio_button);
m_three = (RadioButton) findViewById(R.id.third_radio_button);
m_one.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
m_one.setChecked(true);
m_two.setChecked(false);
m_three.setChecked(false);
}
});
m_two.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
m_one.setChecked(false);
m_two.setChecked(true);
m_three.setChecked(false);
}
});
m_three.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
m_one.setChecked(false);
m_two.setChecked(false);
m_three.setChecked(true);
}
});
...
} // onCreate()
}
Yeah, I know--way old-school. But it works. Good luck!
Problem
I was wondering if is possible to group each single `RadioButton` in a unique `RadioGroup` maintaining the same structure. My structure look like this: - LinearLayout_main - LinearLayout_1 - RadioButton1 - LinearLayout_2 - RadioButton2 - LinearLayout_3 - RadioButton3 As you can see, now each `RadioButton` is a child of different `LinearLayout`. I tried using the structure below, but it doesn't work: - Radiogroup - LinearLayout_main - LinearLayout_1 - RadioButton1 - LinearLayout_2 - RadioButton2 - LinearLayout_3 - RadioButton3