Android手机开发：EditText+DatePicker带日期选择器的编辑框

1. 声明EditText变量，并关联到相应控件上

private EditText sellStartTime;
private EditText sellEndTime;

sellStartTime = (EditText)findViewById(R.id.editSellStartTime);
sellEndTime = (EditText)findViewById(R.id.editSellEndTime);

2. 日期选择器函数

private DatePickerDialog.OnDateSetListener mDateSetListener =
new DatePickerDialog.OnDateSetListener() {
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
mYear = year;
String mm;
String dd;
if(monthOfYear<=9)
{
mMonth = monthOfYear+1;
mm="0"+mMonth;
}
else{
mMonth = monthOfYear+1;
mm=String.valueOf(mMonth);
}
if(dayOfMonth<=9)
{
mDay = dayOfMonth;
dd="0"+mDay;
}
else{
mDay = dayOfMonth;
dd=String.valueOf(mDay);
}
mDay = dayOfMonth;
if(timeFlag == 0) {
sellStartTime.setText(String.valueOf(mYear)+"-"+mm+"-"+dd);
}else {
sellEndTime.setText(String.valueOf(mYear)+"-"+mm+"-"+dd);
}
}
};

protected Dialog onCreateDialog(int id) {
switch (id) {
case 0:
return new DatePickerDialog(this,
mDateSetListener,
mYear, mMonth, mDay);
case 1:
return new DatePickerDialog(this,
mDateSetListener,
mYear, mMonth, mDay);
}
return null;
}

// 隐藏手机键盘
private void hideIM(View edt){
try {
InputMethodManager im = (InputMethodManager) getSystemService(Activity.INPUT_METHOD_SERVICE);
IBinder  windowToken = edt.getWindowToken();
if(windowToken != null) {
im.hideSoftInputFromWindow(windowToken, 0);
}
} catch (Exception e) {

}
}

3. 注册监听器，当EditText获得焦点时，或者被点击时，打开日期选择器

sellStartTime.setOnClickListener(new OnClickListener(){
public void onClick(View v) {
timeFlag = 0;
showDialog(0);
}
});
sellEndTime.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
timeFlag = 1;
showDialog(1);
}
});
sellStartTime.setOnFocusChangeListener(new OnFocusChangeListener() {
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus == true) {
timeFlag = 0;
hideIM(v);
showDialog(0);
}
}
});

sellEndTime.setOnFocusChangeListener(new OnFocusChangeListener() {
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus == true) {
timeFlag = 1;
hideIM(v);
showDialog(1);
}
}
});

4. 在包含EditText的LinearLayout中，添加语句

android:focusable="true"  android:focusableInTouchMode="true"

这句话，是为了防止EditText自动获取焦点，触发日期选择器。