RadioGroupActivity.java
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 |
import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.RadioButton; import android.widget.TextView; public class RadioGroupActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); final TextView tv = (TextView) findViewById(R.id.textView); final OnClickListener radioListener = new OnClickListener() { @Override public void onClick(View v) { RadioButton rb = (RadioButton) v; tv.setText(rb.getText() + " chosen"); } }; final RadioButton choice1 = (RadioButton) findViewById(R.id.choice1); choice1.setOnClickListener(radioListener); final RadioButton choice2 = (RadioButton) findViewById(R.id.choice2); choice2.setOnClickListener(radioListener); final RadioButton choice3 = (RadioButton) findViewById(R.id.choice3); choice3.setOnClickListener(radioListener); } } |
main.xml
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 |
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <TextView android:id="@+id/textView" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="No Choice Made" android:textSize="24sp" > </TextView> <RadioGroup android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical" > <RadioButton android:id="@+id/choice1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Choice 1" android:textSize="24sp" /> <RadioButton android:id="@+id/choice2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Choice 2" android:textSize="24sp" /> <RadioButton android:id="@+id/choice3" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Choice 3" android:textSize="24sp" /> </RadioGroup> </LinearLayout> |