TimePicker中如何实现分钟时间间隔，只有选择0或者半小时这两个时间选择

Question

TimePick

Answer 1

http://blog.csdn.net/a511341250/article/details/39291699

Answer 2

哈哈，终于搞定了，我也是找了N天终于完成了
package com.example.mytimepicker;import java.util.ArrayList;
import java.util.List;import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.NumberPicker;
import android.widget.TimePicker;
/**
 * �Զ�����Ӽ��
 * @author Administrator
 *
 */
public class MainActivity extends Activity {
//����
String[] minuts = new String[]{"00","30", "00", "30", "00", "30", "00", "30", "00", "30", "00", "30"};
TimePicker timePicker;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
timePicker = (TimePicker) this.findViewById(R.id.timePicker1);
}

@Override
protected void onResume() {
super.onResume();
//���ϵͳ��ʱ����� ��ʾ�Ƿ�Ϊ24Сʱ�� ����12Сʱ��
timePicker.setIs24HourView(android.text.format.DateFormat.is24HourFormat(getApplicationContext()));
timePicker.setCurrentHour(0);
//ע�����1����һ���� ����minuts�����±�
timePicker.setCurrentMinute(1);
//����ʱ����
setNumberPickerTextSize(timePicker);
}

/**
 * �õ�timePicker�����android.widget.NumberPicker��� ��������android.widget.NumberPicker���--hour��minute��
 * @param viewGroup
 * @return
 */
private List<NumberPicker> findNumberPicker(ViewGroup viewGroup)
    {
        List<NumberPicker> npList = new ArrayList<NumberPicker>();
        View child = null;
        
        if (null != viewGroup)
        {
            for (int i = 0; i < viewGroup.getChildCount(); i++)
            {
                child = viewGroup.getChildAt(i);
                if (child instanceof NumberPicker)
                {
                    npList.add((NumberPicker)child);
                }
                else if (child instanceof LinearLayout)
                {
                    List<NumberPicker> result = findNumberPicker((ViewGroup)child);
                    if (result.size() > 0)
                    {
                        return result;
                    }
                }
            }
        }
        
        return npList;
    }

/**
 * ����timePicker�����android.widget.NumberPicker��� �����������ʱ��������
 * @param viewGroup  TimePicker timePicker
 */
private void setNumberPickerTextSize(ViewGroup viewGroup){
        List<NumberPicker> npList = findNumberPicker(viewGroup);
        if (null != npList)
        {
            for (NumberPicker mMinuteSpinner : npList)
            {
//             System.out.println("mMinuteSpinner.toString()="+mMinuteSpinner.toString()); 
             if(mMinuteSpinner.toString().contains("id/minute")){//�Է��ӽ��м������
             //android.widget.NumberPicker{42af7a60 VFED.... ......I. 0,0-0,0 #1020499 android:id/minute}
             mMinuteSpinner.setMinValue(0);  
             mMinuteSpinner.setMaxValue(minuts.length-1);  
             mMinuteSpinner.setDisplayedValues(minuts);  //������ʾ����
             }
             //��Сʱ���м������ ʹ�� if(mMinuteSpinner.toString().contains("id/hour")){}���� 
             //android.widget.NumberPicker{42af7a60 VFED.... ......I. 0,0-0,0 #1020499 android:id/hour}
            }
        }
    }
}
<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"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >    <TimePicker
        android:id="@+id/timePicker1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true" /></RelativeLayout>