Question

我一直在浏览过去4个小时，发现我必须在我的xml中创建一个calendarview并在我的java文件中实例化它。但我真的无法理解如何在屏幕上显示实际日历本身。

我的xml文件

  <CalendarView
        android:id="@+id/calen"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"/>

java文件

 package org.example.calender;

import java.util.Calendar;
import android.app.Activity;
import android.os.Bundle;

public class CalenderActivity extends Activity {
    Calendar calender;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        calender = (Calendar)findViewById(R.id.calen);
    }
}

此外，它在“CALEN”上给出错误，但我的日历视图ID也是“CALEN”..

任何帮助，提示和指导都将不胜感激。

Answer 1

我认为这就像改变一样简单：

calender = (Calendar)findViewById(R.id.calen);

为：

CalendarView calender = (CalendarView) findViewById(R.id.calen);

Answer 2

 package org.example.calender;

import java.util.Calendar;
import android.app.Activity;
import android.os.Bundle;

public class CalenderActivity extends Activity {
    CalendarView calender;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        calender = (CalendarView)findViewById(R.id.calen);
    }
}

Answer 3

只需尝试此代码:::

package org.example.calender;

import java.util.Calendar;
import android.app.Activity;
import android.os.Bundle;

public class CalenderActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(new CalenderView(this));
    }
}

我怎样才能在屏幕上显示日历

3 个答案: