public class MainActivity extends ActionBarActivity {
    
    CalendarView view; 
    private AlertDialog.Builder builder;
    private AlertDialog dialog;
    Button button;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        button=(Button) findViewById(R.id.bt_1);
        button.setOnClickListener(new OnClickListener() {
            
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                builder = new Builder(MainActivity.this,
                        AlertDialog.THEME_HOLO_DARK);
                final LayoutInflater inflater = LayoutInflater
                        .from(MainActivity.this);
                
                LinearLayout.LayoutParams relalin = new LinearLayout.LayoutParams(
                        LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);
                LinearLayout mlin = new LinearLayout(MainActivity.this);
                mlin.setLayoutParams(relalin);
                
                LinearLayout.LayoutParams rela = new LinearLayout.LayoutParams(
                        LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);
                rela.topMargin = 10;
                rela.bottomMargin = 10;
                TextView tv = new TextView(MainActivity.this);

                tv.setGravity(Gravity.CENTER);
                tv.setTextSize(26);
                tv.setText("日期选择");
                mlin.addView(tv, rela);
                // 设置标题
                builder.setCustomTitle(mlin);
                // 自定义布局
                View dialogv = inflater.inflate(R.layout.data, null);
                CalendarView cav = (CalendarView) dialogv.findViewById(R.id.calendarView1);
                cav.setOnDateChangeListener(new OnDateChangeListener() {

                    @Override
                    public void onSelectedDayChange(CalendarView view, int year,
                            int month, int dayOfMonth) {
                        // TODO Auto-generated method stub
                        //这里就是获取得到年月日的信息 月要加一
                                                

                    }
                });
                                
                builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {

                    @Override
                    public void onClick(DialogInterface dia, int which) {
                        // TODO Auto-generated method stub
                                                    //这里点击后进行逻辑判断
                        
                    }
                });

                builder.setNegativeButton("取消", null);
                builder.setView(dialogv);
                builder.create();
                dialog = builder.show();

            }
        });
       
    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        
        getMenuInflater().inflate(R.menu.main, 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 {

        public PlaceholderFragment() {
        }

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                Bundle savedInstanceState) {
            View rootView = inflater.inflate(R.layout.fragment_main, container, false);
            return rootView;
        }
    }

}

main.xml的布局文件就一个按钮

<Button 
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/bt_1"
        android:text="点击"/>    

data.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_height="wrap_content"
  android:layout_width="wrap_content"
  android:orientation="vertical">
  
   <LinearLayout 
        android:layout_width="fill_parent"
       android:layout_height="300dp"
        android:orientation="horizontal"
        android:gravity="center">
   

        <CalendarView
            android:id="@+id/calendarView1"
            android:background="@color/lucency"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            />
      
  
</LinearLayout>

</LinearLayout>

基本上就这样。反正我是花了很长时间才看懂只是不想忘记就记下来了 第一次用简书还是有点小激动！
http://pan.baidu.com/s/1skAxcOd