在Android 3.0 之後支援CalendarView，可以簡單設計日曆的View
在layout 設計
<LinearLayout 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"
android:orientation="vertical"
tools:context=".MainActivity" >
<TextView
android:id="@+id/tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world" />
<CalendarView
android:id="@+id/cv"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
</LinearLayout>
Activity 中以 cv=(CalendarView)findViewById(R.id.cv); 得到CalendarView，在OnDateChangeListener 必須實作 onSelectedDayChange(CalendarView view, int year, int month,int dayOfMonth)。
因onSelectedDayChange 在日期變化才會有變動，因此可加入一init 的預設值
程式如下
public class MainActivity extends Activity {
private CalendarView cv;
private TextView tv;
int Myear,Mmonth,Mday;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tv=(TextView)findViewById(R.id.tv);
init();
cv=(CalendarView)findViewById(R.id.cv);
cv.setOnDateChangeListener(listener);
// cv.setOnClickListener(l);
}
public void init()
{
Calendar c=Calendar.getInstance();
int year=c.get(Calendar.YEAR);
int Mmonth=c.get(Calendar.MONTH);
int Mday=c.get(Calendar.DATE);
tv.setText(new StringBuilder().append(year)
.append("-").append(Mmonth).append("-").append(Mday));
}
OnDateChangeListener listener=new OnDateChangeListener() {
@Override
public void onSelectedDayChange(CalendarView view, int year, int month,
int dayOfMonth) {
// TODO Auto-generated method stub
Myear = year;
Mmonth = month;
Mday = dayOfMonth;
tv.setText(new StringBuilder().append(year)
.append("-").append(Mmonth).append("-").append(Mday));
}
};
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
程式下載
