Android自定义dialog可选择展示年月日时间选择栏

自定义dialog

package com.poptest;
import android.app.DatePickerDialog;
import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.DatePicker;
//dialog类
public class YearPickerDialog extends DatePickerDialog {
  public YearPickerDialog(Context context, OnDateSetListener callBack, int year, int monthOfYear, int dayOfMonth) {
    super(context, callBack, year, monthOfYear, dayOfMonth);
    this.setTitle(year + "年" + (monthOfYear + 1) + "月");
    //getChildAt(2)隐藏日的显示可以改变隐藏的对象
   ((ViewGroup) ((ViewGroup) this.getDatePicker().getChildAt(0)).getChildAt(0)).getChildAt(2).setVisibility(View.GONE);
   ((ViewGroup) ((ViewGroup) this.getDatePicker().getChildAt(0)).getChildAt(0)).getChildAt(2).setVisibility(View.GONE);
  }
  public YearPickerDialog(Context context, int theme, OnDateSetListener listener, int year, int monthOfYear, int dayOfMonth) {
    super(context, theme, listener, year, monthOfYear, dayOfMonth); 

   this.setTitle(year + "年" + (monthOfYear + 1) + "月");
    ((ViewGroup) ((ViewGroup) this.getDatePicker().getChildAt(0)).getChildAt(0)).getChildAt(2).setVisibility(View.GONE);
    ((ViewGroup) ((ViewGroup) this.getDatePicker().getChildAt(0)).getChildAt(0)).getChildAt(2).setVisibility(View.GONE);
  }
  @Override
 public void onDateChanged(DatePicker view, int year, int month, int day) {
    super.onDateChanged(view, year, month, day);
    this.setTitle(year + "年" + (month + 1) + "月");
  }
} 

时间处理类

//时间处理类
package com.poptest;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
public class DateUtil {
  public static Date strToDate(String style, String date) {
    SimpleDateFormat formatter = new SimpleDateFormat(style);
    try {
      return formatter.parse(date);
    } catch (ParseException e) {
      e.printStackTrace();
      return new Date();
    }
  }
  public static String dateToStr(String style, Date date) {
   SimpleDateFormat formatter = new SimpleDateFormat(style);
    return formatter.format(date);
  }
  public static String clanderTodatetime(Calendar calendar, String style) {
    SimpleDateFormat formatter = new SimpleDateFormat(style);
    return formatter.format(calendar.getTime());
 }
  public static String DateTotime(long date, String style) {
    SimpleDateFormat formatter = new SimpleDateFormat(style);
    return formatter.format(date);
  }
}<pre name="code" class="java">//调用方式
        final Calendar calendar = Calendar.getInstance(); </pre><pre name="code" class="java"><span style="white-space:pre">   </span>//没有AlertDialog.THEME_HOLO_LIGHT这个Theme出来的dialog非常丑
    new YearPickerDialog(this, AlertDialog.THEME_HOLO_LIGHT, new DatePickerDialog.OnDateSetListener() {
       @Override
       public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) { 

        calendar.set(Calendar.YEAR, year);
         calendar.set(Calendar.MONTH, monthOfYear);
        Log.d("###",DateUtil.clanderTodatetime(calendar, "yyyy-MM")); 

       }
    }, calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DATE)).show();
</pre><br>
<pre></pre>
<h3><a name="t2"></a><em>解决7.0系统使用该方式调用崩溃的情况(只遇到在小米7.0系统崩溃，华为等7.0不会崩溃)</em></h3> 

package com.dmos;
import android.app.DatePickerDialog;
import android.content.Context;
import android.os.Bundle;
import android.widget.DatePicker;
import android.widget.LinearLayout;
import android.widget.NumberPicker;
public class MyDatePickerDialog extends DatePickerDialog{
 public MyDatePickerDialog(Context context, int theme,
     OnDateSetListener callBack, int year, int monthOfYear,
     int dayOfMonth) {
   super(context, theme, callBack, year, monthOfYear, dayOfMonth);
 }
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  LinearLayout mSpinners = (LinearLayout) findViewById(getContext().getResources().getIdentifier("android:id/pickers", null, null));
   if (mSpinners != null) {
     NumberPicker mYearSpinner = (NumberPicker) findViewById(getContext().getResources().getIdentifier("android:id/year", null, null));
    NumberPicker mMonthSpinner = (NumberPicker) findViewById(getContext().getResources().getIdentifier("android:id/month", null, null));
    NumberPicker mDaySpinner = (NumberPicker) findViewById(getContext().getResources().getIdentifier("android:id/day", null, null));
     mSpinners.removeAllViews();
     //如果要隐藏年，月，日中的某一项取消其addView就好了
     if (mYearSpinner != null) {
      mSpinners.addView(mYearSpinner);
    }
     if (mMonthSpinner!= null) {
      mSpinners.addView(mMonthSpinner);
    }
    if (mDaySpinner != null) {
       mSpinners.addView(mDaySpinner);
    }
   }
 }
 @Override
 public void onDateChanged(DatePicker view, int year, int month, int day) {
   super.onDateChanged(view, year, month, day);
  setTitle(year+"年"+(month+1)+"月");
 }
}  

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