activity程式碼

public class MainActivity extends Activity {

    private CheckBox check_all;
    private ListView lView;
    private CheckAdapter checkAdapter;
    private Button reverse;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        check_all = (CheckBox) findViewById(R.id.check_all);
        lView = (ListView) findViewById(R.id.list_view);
        reverse = (Button) findViewById(R.id.reverse);

        List<String> list = new
 
 ArrayList<String>();
        for (int i = 0; i < 15; i++) {
            list.add("這是條目" + i);
        }

        checkAdapter = new CheckAdapter(getApplicationContext(), list);
        lView.setAdapter(checkAdapter);

        check_all.setOnClickListener(new OnClickListener() {

            @Override
 

            public void onClick(View v) {
                boolean flag = check_all.isChecked();

                for (int i = 0; i < checkAdapter.getSelect().size(); i++) {
                    checkAdapter.getSelect().set(i, flag);
                }
                checkAdapter.notifyDataSetChanged();
            }
        });

        reverse.setOnClickListener(new
 
 OnClickListener() {

            @Override
            public void onClick(View v) {

                if (!checkAdapter.getSelect().contains(true)) {
                    // check_all.setChecked(false);
                    Toast.makeText(getApplicationContext(), "請選擇0", Toast.LENGTH_SHORT).show();
                } else {
                    for (int i = 0; i < checkAdapter.getSelect().size(); i++) {
                        if (checkAdapter.getSelect().get(i)) {
                            checkAdapter.getSelect().set(i, false);
                        } else {
                            checkAdapter.getSelect().set(i, true);
                        }
                    }
                    if (!checkAdapter.getSelect().contains(true)) {
                        check_all.setChecked(false);
                    }
                }
                checkAdapter.notifyDataSetChanged();

            }
        });

    }

    private class CheckAdapter extends BaseAdapter {
        private List<String> list;
        private Context context;
        private LinkedList<Boolean> linkedList = new LinkedList<Boolean>();

        public CheckAdapter(Context context, List<String> list) {
            this.list = list;
            this.context = context;
            // 初始化
            for (int i = 0; i < list.size(); i++) {
                getSelect().add(false);
            }
        }

        private List<Boolean> getSelect() {
            return linkedList;
        }

        @Override
        public int getCount() {
            return list.size();
        }

        @Override
        public Object getItem(int position) {
            return list.get(position);
        }

        @Override
        public long getItemId(int position) {
            return position;
        }

        @Override
        public View getView(final int position, View convertView, ViewGroup parent) {
            if (convertView == null) {
                convertView = View.inflate(context, R.layout.item, null);
            }
            CheckBox ck = (CheckBox) convertView.findViewById(R.id.ck);
            TextView tView = (TextView) convertView.findViewById(R.id.tv);

            tView.setText(list.get(position));

            ck.setChecked(linkedList.get(position));
            // 不能用onCheckChangedListner()複用的時候
            ck.setOnClickListener(new OnClickListener() {

                @Override
                public void onClick(View v) {
                    linkedList.set(position, !linkedList.get(position));
                    if (linkedList.contains(false)) {
                        check_all.setChecked(false);
                    } else {
                        check_all.setChecked(true);
                    }
                    // 重新整理
                    notifyDataSetChanged();
                }
            });
            return convertView;
        }

    }

mainactivity的XML佈局

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <ListView
        android:layout_above="@+id/reverse"
        android:id="@+id/list_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent" >
    </ListView>

    <Button
        android:id="@+id/reverse"
        android:layout_above="@+id/check_all"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="反選" />

    <CheckBox
        android:id="@+id/check_all"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:text="全選" />

</RelativeLayout>

ListView的item佈局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal" >

    <CheckBox
        android:id="@+id/ck"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <TextView
        android:id="@+id/tv"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="18sp" />

</LinearLayout>