RadioGroup & RadioButton (建立多選1的button及動態)

RadioGroup & RadioButton (建立多選1的button及動態)

//建立多選1的button

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:orientation="vertical" >

   

    <RadioGroup

        android:id="@+id/rdbGp1"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:orientation="vertical">

       

        <RadioButton

            android:id="@+id/rdb1"

            android:layout_width="fill_parent"

            android:layout_height="wrap_content"

            android:drawableLeft="@drawable/ic_launcher"

            android:text="Option 1"/>

       

        <RadioButton

            android:id="@+id/rdb2"

            android:layout_width="fill_parent"

            android:layout_height="wrap_content"

            android:drawableLeft="@drawable/ic_launcher"

            android:text="Option 21"/>

       

    </RadioGroup>

</LinearLayout>




//建立多選1的button動態

public class RadioActivity extends Activity {

        @Override

        protected void onCreate(Bundle savedInstanceState) {

                super.onCreate(savedInstanceState);

                setContentView(R.layout.activity_radio);

                if (savedInstanceState == null) {

                        getFragmentManager().beginTransaction()

                                        .add(R.id.container, new PlaceholderFragment()).commit();

                }

        }

        @Override

        public boolean onCreateOptionsMenu(Menu menu) {

                // Inflate the menu; this adds items to the action bar if it is present.

                getMenuInflater().inflate(R.menu.radio, menu);

                return true;

        }

        @Override

        public boolean onOptionsItemSelected(MenuItem item) {

                // Handle action bar item clicks here. The action bar will

                // automatically handle clicks on the Home/Up button, so long

                // as you specify a parent activity in AndroidManifest.xml.

                int id = item.getItemId();

                if (id == R.id.action_settings) {

                        return true;

                }

                return super.onOptionsItemSelected(item);

        }

        /**

         * A placeholder fragment containing a simple view.

         */

        public static class PlaceholderFragment extends Fragment {

                private View rootView;

                public PlaceholderFragment() {

                }

                @Override

                public View onCreateView(LayoutInflater inflater, ViewGroup container,

                                Bundle savedInstanceState) {

                         rootView = inflater.inflate(R.layout.fragment_radio,

                                        container, false);

                        RadioGroup radioGroup=(RadioGroup)rootView.findViewById(R.id.rdbGp1);

                        radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {

                               

                                @Override

                                public void onCheckedChanged(RadioGroup group, int checkedId) {

                                        RadioButton rb1=(RadioButton)rootView.findViewById(R.id.rdb1);

                                        if(rb1.isChecked()){

                                                Toast.makeText(PlaceholderFragment.this.getActivity(),

                                                                "Option 1 checked!",

                                                                Toast.LENGTH_SHORT)

                                                                .show();

                                        }else{

                                                Toast.makeText(PlaceholderFragment.this.getActivity(),

                                                                "Option 2 checked!",

                                                                Toast.LENGTH_SHORT)

                                                                .show();

                                        }

                                }

                        });

                        return rootView;

                }

        }

}