The following code shows how to
use code to control vertical or horizontal layout for RadioGroup
.
Layout xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout/* w ww . j av a 2 s .c o m*/ xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > <RadioGroup android:id="@+id/orientation" android:orientation="horizontal" android:layout_width="wrap_content" android:layout_height="wrap_content" android:padding="5px"> <RadioButton android:id="@+id/horizontal" android:text="horizontal" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <RadioButton android:id="@+id/vertical" android:text="vertical" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </RadioGroup> <RadioGroup android:id="@+id/gravity" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="wrap_content" android:padding="5px"> <RadioButton android:id="@+id/left" android:text="left" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <RadioButton android:id="@+id/center" android:text="center" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <RadioButton android:id="@+id/right" android:text="right" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </RadioGroup> </LinearLayout>
Java code
import android.app.Activity; import android.os.Bundle; import android.view.Gravity; import android.text.TextWatcher; import android.widget.LinearLayout; import android.widget.RadioGroup; import android.widget.EditText; // w w w . j ava 2 s . c om public class MainActivity extends Activity implements RadioGroup.OnCheckedChangeListener { RadioGroup orientation; RadioGroup gravity; @Override public void onCreate(Bundle icicle) { super.onCreate(icicle); setContentView(R.layout.main); orientation=(RadioGroup)findViewById(R.id.orientation); orientation.setOnCheckedChangeListener(this); gravity=(RadioGroup)findViewById(R.id.gravity); gravity.setOnCheckedChangeListener(this); } public void onCheckedChanged(RadioGroup group, int checkedId) { if (group==orientation) { if (checkedId==R.id.horizontal) { orientation.setOrientation(LinearLayout.HORIZONTAL); } else { orientation.setOrientation(LinearLayout.VERTICAL); } } else if (group==gravity) { if (checkedId==R.id.left) { gravity.setGravity(Gravity.LEFT); } else if (checkedId==R.id.center) { gravity.setGravity(Gravity.CENTER_HORIZONTAL); } else if (checkedId==R.id.right) { gravity.setGravity(Gravity.RIGHT); } } } }