在Android EditText中实现日期时间选择器(DatePicker和TimePicker)

利用Android应用框架提供的DatePicker（日期选择器）和TimePicker（时间选择器），实现日期时间选择器。

Dialog的Content布局文件（date_time_dialog.xml）：

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:orientation="vertical" 
    android:padding="10dip" > 

    <TextView 
        android:layout_width="fill_parent" 
        android:layout_height="wrap_content" 
        android:singleLine="true" 
        android:text="请选择日期" 
        android:textColor="#FFFFFF" 
        android:textSize="16sp" /> 

    <DatePicker 
        android:id="@+id/date_picker" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content" 
        android:layout_marginTop="5dip" /> 

    <TextView 
        android:layout_width="fill_parent" 
        android:layout_height="wrap_content" 
        android:layout_marginTop="10dip" 
        android:singleLine="true" 
        android:text="请选择时间" 
        android:textColor="#FFFFFF" 
        android:textSize="16sp" /> 

    <TimePicker 
        android:id="@+id/time_picker" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content" 
        android:layout_marginTop="5dip" /> 

</LinearLayout>

代码中的实现：

package com.easipass.test; 

import java.util.Calendar; 

import android.app.Activity; 
import android.app.AlertDialog; 
import android.app.Dialog; 
import android.content.DialogInterface; 
import android.os.Bundle; 
import android.text.InputType; 
import android.view.MotionEvent; 
import android.view.View; 
import android.widget.DatePicker; 
import android.widget.EditText; 
import android.widget.TimePicker; 

/**
 * 功能描述：实现日期时间选择器
 * 
 * @author android_ls
 */ 
public class DateTimeActivity extends Activity implements View.OnTouchListener { 

    private EditText etStartTime; 

    private EditText etEndTime; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
        super.onCreate(savedInstanceState); 
        setContentView(R.layout.main); 

        etStartTime = (EditText) this.findViewById(R.id.et_start_time); 
        etEndTime = (EditText) this.findViewById(R.id.et_end_time); 

        etStartTime.setOnTouchListener(this); 
        etEndTime.setOnTouchListener(this); 

    } 

    @Override 
    public boolean onTouch(View v, MotionEvent event) { 
        if (event.getAction() == MotionEvent.ACTION_DOWN) { 

            AlertDialog.Builder builder = new AlertDialog.Builder(this); 
            View view = View.inflate(this, R.layout.date_time_dialog, null); 
            final DatePicker datePicker = (DatePicker) view.findViewById(R.id.date_picker); 
            final TimePicker timePicker = (android.widget.TimePicker) view.findViewById(R.id.time_picker); 
            builder.setView(view); 

            Calendar cal = Calendar.getInstance(); 
            cal.setTimeInMillis(System.currentTimeMillis()); 
            datePicker.init(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH), null); 

            timePicker.setIs24HourView(true); 
            timePicker.setCurrentHour(cal.get(Calendar.HOUR_OF_DAY)); 
            timePicker.setCurrentMinute(Calendar.MINUTE); 

            if (v.getId() == R.id.et_start_time) { 
                final int inType = etStartTime.getInputType(); 
                etStartTime.setInputType(InputType.TYPE_NULL); 
                etStartTime.onTouchEvent(event); 
                etStartTime.setInputType(inType); 
                etStartTime.setSelection(etStartTime.getText().length()); 

                builder.setTitle("选取起始时间"); 
                builder.setPositiveButton("确  定", new DialogInterface.OnClickListener() { 

                    @Override 
                    public void onClick(DialogInterface dialog, int which) { 

                        StringBuffer sb = new StringBuffer(); 
                        sb.append(String.format("%d-%02d-%02d",  
                                datePicker.getYear(),  
                                datePicker.getMonth() + 1, 
                                datePicker.getDayOfMonth())); 
                        sb.append("  "); 
                        sb.append(timePicker.getCurrentHour()) 
                        .append(":").append(timePicker.getCurrentMinute()); 

                        etStartTime.setText(sb); 
                        etEndTime.requestFocus(); 

                        dialog.cancel(); 
                    } 
                }); 

            } else if (v.getId() == R.id.et_end_time) { 
                int inType = etEndTime.getInputType(); 
                etEndTime.setInputType(InputType.TYPE_NULL);     
                etEndTime.onTouchEvent(event); 
                etEndTime.setInputType(inType); 
                etEndTime.setSelection(etEndTime.getText().length()); 

                builder.setTitle("选取结束时间"); 
                builder.setPositiveButton("确  定", new DialogInterface.OnClickListener() { 

                    @Override 
                    public void onClick(DialogInterface dialog, int which) { 

                        StringBuffer sb = new StringBuffer(); 
                        sb.append(String.format("%d-%02d-%02d",  
                                datePicker.getYear(),  
                                datePicker.getMonth() + 1,  
                                datePicker.getDayOfMonth())); 
                        sb.append("  "); 
                        sb.append(timePicker.getCurrentHour()) 
                        .append(":").append(timePicker.getCurrentMinute()); 
                        etEndTime.setText(sb); 

                        dialog.cancel(); 
                    } 
                }); 
            } 

            Dialog dialog = builder.create(); 
            dialog.show(); 
        } 

        return true; 
    } 

}