关于DatePickerDialog 设置时间限制问题

   这个是有关于DatePickerDialog 显示,和设置时间问题,和在DatePickerDialog改变了时间,回调dateSet让textView改变时间的例子

public class OrderHistoryActivity extends Activity implements OnClickListener {
	
	
	
	DatePickerDialog datePickerDialog ;
	TextView dateText;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.order_history);
		
		
		setDate();
		
	}
	
	
	
	
	
	
	
	
	/***
	 * 设置日期和时间
	 */
	private void setDate(){
		
		Button dateButton =  (Button) findViewById(R.id.date_but);
		dateButton.setOnClickListener(this);
		dateText = (TextView) findViewById(R.id.date_txt);
		dateText.setOnClickListener(this);
		
		//得到昨天的时间
		Calendar calendar = Calendar.getInstance();  
		calendar.add(Calendar.DATE,   -1);
		int  year = calendar.get(Calendar.YEAR);  
		int month = calendar.get(Calendar.MONTH);  
		int   day = calendar.get(Calendar.DAY_OF_MONTH);   
		
		//dateText显示时间
		dateText.setText(year+"-"+(month+1)+"-"+day);
		
		 datePickerDialog = new DatePickerDialog(OrderHistoryActivity.this, new MyDatePickerListener(), year, month, day);
		 //设置最大时间
		 datePickerDialog.getDatePicker().setMaxDate(calendar.getTimeInMillis());
		 
		 //设置最小时间datePickerDialog.getDatePicker().setminDate(...)
		 
		 // }
	
	


	SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
	
	@Override
	public void onClick(View v) {
		
		int id = v.getId();
		
		
		switch (id) {
		
		case R.id.date_txt:
			
		case R.id.date_but:
			
			
			
			datePickerDialog.show();
			
			
			
			
			
			
			break;

		
		}
		
		
	}
	
	//当日期时间变了,回调onDateSet
	private class MyDatePickerListener implements OnDateSetListener{

		@Override
		public void onDateSet(DatePicker view, int year, int monthOfYear,
				int dayOfMonth) {
			
			dateText.setText(year+"-"+(monthOfYear+1)+"-"+dayOfMonth);
		}
		
		
		
	}
	

}

布局文件:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" 
    android:background="#ffe8e1dd"
    >
    
    
   
    
    <RelativeLayout 
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/search_frame_black"
        android:paddingLeft="20dp"
        android:paddingRight="20dp"
         android:focusable="true"
             android:focusableInTouchMode="true"
        >
        
        <EditText 
            android:id="@+id/searchText"
            android:layout_centerVertical="true"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/search_frame"
            android:paddingLeft="30dp"
          android:imeOptions="actionSearch"
              android:singleLine="true"
            />
        
       
        <ImageView 
            
              android:layout_centerVertical="true"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/search"
            
            />
      
        
        
        
        <Button 
            android:id="@+id/date_but"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/date"
            android:layout_centerVertical="true"
            android:layout_alignParentRight="true"
           
            
            />
        
        
        <Button 
             android:layout_toLeftOf="@id/date_but"
              android:id="@+id/rightBut"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/reght_but"
            android:layout_centerVertical="true"
            android:layout_alignParentRight="true"
            android:layout_marginRight="30dp"
            
            
            
            />
        
        
        <TextView 
            android:id="@+id/date_txt"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_toLeftOf="@id/rightBut"
            android:text="1990-06-02"
              android:layout_centerVertical="true"
            
            
            />
        
        
        <Button 
            android:id="@+id/left_but"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/left_but"
            android:layout_centerVertical="true"
            android:layout_toLeftOf="@id/date_txt"
            />
        
        
        
    </RelativeLayout>
    
    
    
    

</LinearLayout>