android > 控件 > RadioGroup

main.xml

<?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" >    <LinearLayout        android:layout_width="fill_parent"        android:orientation="vertical"        android:padding="8dip"        android:layout_height="wrap_content" >    <RadioGroup         android:id="@+id/radioGroup1"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:orientation="horizontal"        >        <RadioButton            android:id="@+id/radio1"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:checked = "true"            android:text="5分钟            " />                <RadioButton            android:id="@+id/radio2"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="10分钟  " />            </RadioGroup>    <RadioGroup         android:id="@+id/radioGroup2"         android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:orientation="horizontal"        >        <RadioButton            android:id="@+id/radio3"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="30分钟          " />                <RadioButton            android:id="@+id/radio4"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="60分钟  " />            </RadioGroup>    <RadioGroup         android:id="@+id/radioGroup3"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:orientation="horizontal"        >        <RadioButton            android:id="@+id/radio5"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="90分钟          " />                <RadioButton            android:id="@+id/radio6"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="120分钟" />            </RadioGroup>    <RadioGroup         android:id="@+id/radioGroup4"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:orientation="horizontal"        >        <RadioButton            android:id="@+id/radio7"            android:layout_width="wrap_content"            android:layout_height="wrap_content" />                <EditText            android:id="@+id/edit1"            android:layout_width="100dip"            android:layout_height="wrap_content" />        <TextView            android:id="@+id/text1"            android:layout_width="wrap_content"            android:text="分钟"            android:layout_height="wrap_content" />                    </RadioGroup>    </LinearLayout></LinearLayout>

T3Activity.java

package t3.com;import android.app.Activity;import android.os.Bundle;import android.view.Menu;import android.view.MenuItem;import android.widget.RadioButton;import android.widget.RadioGroup;import android.widget.Toast;import android.widget.ToggleButton;import android.widget.RadioGroup.OnCheckedChangeListener;public class T3Activity extends Activity {    /** Called when the activity is first created. */private RadioGroup radioGroup1;private RadioGroup radioGroup2;private RadioGroup radioGroup3;private RadioGroup radioGroup4;private RadioButton radio1;private RadioButton radio2;private RadioButton radio3;private RadioButton radio4;private RadioButton radio5;private RadioButton radio6;private RadioButton radio7;    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        radioGroup1 = (RadioGroup)findViewById(R.id.radioGroup1);        radioGroup2 = (RadioGroup)findViewById(R.id.radioGroup2);        radioGroup3 = (RadioGroup)findViewById(R.id.radioGroup3);        radioGroup4 = (RadioGroup)findViewById(R.id.radioGroup4);                radio1 = (RadioButton)findViewById(R.id.radio1);        radio2 = (RadioButton)findViewById(R.id.radio2);        radio3 = (RadioButton)findViewById(R.id.radio3);        radio4 = (RadioButton)findViewById(R.id.radio4);        radio5 = (RadioButton)findViewById(R.id.radio5);        radio6 = (RadioButton)findViewById(R.id.radio6);        radio7 = (RadioButton)findViewById(R.id.radio7);                radioGroup1.setOnCheckedChangeListener(new ClearRadio());        radioGroup2.setOnCheckedChangeListener(new ClearRadio());radioGroup3.setOnCheckedChangeListener(new ClearRadio());radioGroup4.setOnCheckedChangeListener(new ClearRadio());    }    class ClearRadio implements OnCheckedChangeListener{    public void onCheckedChanged(RadioGroup group, int checkedId) {    // TODO Auto-generated method stub            if (group != null) {                if (group == radioGroup1) {                    if(checkedId==R.id.radio1||checkedId==R.id.radio2){                                             radioGroup2.clearCheck();                    radioGroup3.clearCheck();                    radioGroup4.clearCheck();                        group.check(checkedId);                    }                } else if (group == radioGroup2) {                    if(checkedId==R.id.radio3||checkedId==R.id.radio4){                                             radioGroup1.clearCheck();                    radioGroup3.clearCheck();                    radioGroup4.clearCheck();                        group.check(checkedId);                    }                } else if (group == radioGroup3) {                if(checkedId==R.id.radio5||checkedId==R.id.radio6){                                            radioGroup1.clearCheck();                    radioGroup2.clearCheck();                    radioGroup4.clearCheck();                        group.check(checkedId);                    }                } else if (group == radioGroup4) {                if(checkedId==R.id.radio7){                                            radioGroup1.clearCheck();                    radioGroup2.clearCheck();                    radioGroup3.clearCheck();                        group.check(checkedId);                    }                }                             }            //\\    }        }        public int getRadioId(){    int re = 1;    if(radio1.isChecked() == true){re = 1;}    if(radio2.isChecked() == true){re = 2;}    if(radio3.isChecked() == true){re = 3;}    if(radio4.isChecked() == true){re = 4;}    if(radio5.isChecked() == true){re = 5;}    if(radio6.isChecked() == true){re = 6;}if(radio7.isChecked() == true){re = 7;}    return re;    }    public boolean onCreateOptionsMenu(Menu menu) {       // TODO Auto-generated method stub       menu.add(0, 1, 1, "1");        return super.onCreateOptionsMenu(menu);      }       @Override       public boolean onOptionsItemSelected(MenuItem item) {       // TODO Auto-generated method stub       if(item.getItemId() == 1){       setTitle("ID="+getRadioId());     }       return super.onOptionsItemSelected(item);       }  //\\}

radio1.setChecked(true);

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